Waterproof Paint for Guttering

The design principles behind commercial roof coating products includes easy user application, adhesion, durability, water and UV resistance. However, gutter paint requires some extra factors. Along with being waterproof, this type of product must be highly flexible.

What makes a good paint for guttering?

In today’s working environment, contractors need products to be robust and user friendly. With limited hours allocated to roof or gutter repairs or maintenance, it’s crucial that coatings are designed with fast adhesion in mind. But equally it is essential that gutter paints are waterproof and highly resilient to both UV damage, extreme temperatures and clogging.

Along with pooling water, coatings need to be tough enough to withstand a variety of debris. Mosses, grasses and weeds, nesting birds, and rubbish can all collect in guttering systems causing significant damage over time.

Below are three common issues:

  • Pooling water backs up, causing damage to the gutter and surrounding building.
  • Where the gutter system has an inadequate fall, over time this could cause the substrate to fail.
  • Corrosion (oxidisation) can occur when there’s slow drainage.

Regular gutter maintenance is the key to preventing clogging. Instead of replacing an entire gutter system, a simple solution is to coat with a waterproof gutter paint. So, how are gutter coatings developed and how do they differ from a standard roof coating paint?

Developing a waterproof gutter paint

Although coatings for gutter systems use the same technology as other roof coatings, they have a different resin profile. Gutter paint has a more rubberised coating to cope with prolonged damp and wet conditions. Industrial gutters are designed differently to domestic guttering systems with no fall. Water collects until it reaches a certain height, and it then runs over to the drain. As a result, this type of gutter can be immersed in water for days at a time.

Technologists spend a lot of time in wintry conditions, testing the profile of gutter coatings. They test various substrates including concrete and metal-lined gutters, which are the most common substrates used for guttering systems on industrial buildings. It’s not unusual for testing to include breaking the ice to see how freezing conditions have affected a gutter. As ice creates pressure as it expands, a flexible, robust rubberised gutter paint is essential.

The technicians we use to develop our products are continually testing and improving our Giromax® Guttercoat. We listen carefully to the feedback of the contractors who use our products, which provides us with the foundation for future design parameters. Our aim is to ensure our products can be easily applied during cold, damp conditions.

Our focus is always on how we can improve the application, environmental aspects and affordability. This includes using certain polymers in our gutter coating to provide greater flexibility, UV resistance and adhesion. Read more about How We Test Our Coating Products

5 Benefits of Giromax® Guttercoat

Our advanced gutter coating solution is ideal as an anti-corrosion treatment for galvanised steel and cast-iron gutters. It can also be used on asbestos cement gutters. Designed to offer long-term protection, our product can be used to repair tired gutters and joints.

Below are five benefits of using Giromax® Guttercoat:

    1. A one-part, fully moisture tolerant hybrid polymer, which is supplied ready to use.
    2. Seals and encapsulates the substrate even in wet and damp conditions.
    3. A Gutter Joint treatment is included.
    4. Resistance to ponding water.
    5. Resilience to bird damage.

Giromax® Guttercoat comes with a 15-year guarantee, giving you or your client peace of mind for years to come. When it comes to industrial roof and gutter coatings, we are the market leaders. Our aim is to ensure contractors have a user-friendly, robust solution for industrial roof or gutter systems.

If you need application guidance or advice about any of our products, please speak to the Giromax team or call 01455 558969 today.

Condolence Book

It is with deep regret that Giromax announce the passing of our founder and Managing Director, Roy Emmett following a period of illness. He has been at the helm since establishing Giromax Technology Ltd in 1996. He will be sadly missed by all who knew him. We send our condolences to his family at this difficult time. We will not experience any changes to the services that we provide.

Giromax will close on the day of Friday 8th of July so that all staff can attend the funeral.

How Commercial Roof Coating Products Are Developed

As with most products, Roofcoat systems were developed to solve a problem. Technicians are leading cladding experts, many of whom have been developing coatings for warranty work since the days of British Steel. Originally, silicone was used in the products developed to help to deal with the problem British Steel had with cut-edge corrosion. But due to the various issues surrounding silicone, developments were made to roof coatings to cope with the movement of metal roof sheets and the Giromax® Roofcoating system was born.

Environmental factors for roof coatings

Since the beginning, developing roof-coating products that are less harmful to our environment has always been a key factor in the design process. Our solvent-less products have been developed to compete in a highly competitive marketplace. Giromax® roof coatings have been designed to release fewer polluting Volatile Organic Compounds (VOCs) into the environment.

The products have been designed to include less leachable content, allowing the rain to run off roof systems with materials staying within the coatings. We also use more environmentally friendly stabilisers in our coatings, which minimises health and safety concerns for the product and the user.

Our coatings have low heavy metal content and low isocyanates, often used in 2-pack PU coating products, which can affect the health of workers if exposed. When compared with other roof-coating products on the market, our coatings contain 87% paint compared to the solid content of a silicone-based paint which averages 60%. The majority of our products contain less solvents than our competitor products.

Better adhesion

When products are developed, one of our main focuses is on adhesion. High levels of flexibility are built into our roof-coating systems to cope with different weather conditions and temperatures. Roof systems are exposed to greater windchill and lower temperatures than at ground level, and they need to be resilient to sun, storms, snow and ice.

Some roofing systems also require regular maintenance, including access to vents and air conditioning units, so footfall has to be taken into consideration. Our products have been designed to be highly durable, tolerant and able to withstand years of wear and tear.

Better UV Resistance

As well as exposure to sun and dry conditions, the impact of hot sunshine on a rain-soaked roof can create a very aggressive environment requiring specific paint technology. Our coatings have been developed to include a waterproof membrane to minimise surface degradation and colour fading technology.

Better user application

One of the challenges in today’s working environment is the need for products to be as user friendly as possible. Roof-coating jobs can easily be disrupted due to weather conditions. One of the key design principles has always focused on the ability to apply our roof coatings in damp conditions. Due to climate change, the British weather is becoming increasingly volatile, and we are aware of the growing challenge this poses to roof contractors.

Fewer days for workers to be able to apply a roof-coating product leads to jobs taking longer and time equals money. As our roof-coatings can be applied in wet weather, this solves the problem of wasted time and costs. But as the British weather has always been changeable, technicians have spent decades developing roof coatings to withstand extreme conditions.

18 months of product testing

It’s important that we have full confidence in our products before launching into the market. When new and improved coatings are developed for better adhesion, better flexibility and better UV resistance, they are rigorously tested for 18 months. This includes a continuous test cycle of 2,000 – 3,000 hours. After which tests continue for 15,000 hours or more to ensure we have achieved maximum durability for the product.

ASTM approved QUV accelerated weather testing cabinet are used and different thicknesses of films are also tested to see how they react to varying conditions. Read more about our testing process…

When it comes to developing roof coating products, we are the market leaders. Our technical expertise allows us to continually test and improve our product range. Our aim is to provide contractors with flexible, durable and long-lasting commercial roof coating solutions.

If you need application guidance or advice about any of our products, please speak to the Giromax team or call 01455 558969 today.

Giromax® Edgecoat Application Guide

Spraying vs roller vs brush application

The Giromax range has been developed to be user friendly and multipurpose. Although our products can be applied in different ways, there are preferred methods to apply our coatings.
The following guide is for best decorative practice:

  • Brush application – the best approach for a thorough application is to start by stripe coating the area with a brush. This is our preferred way to apply a coating.
  • Roller application – applying paint using a roller can lead to air entrapment and bubbles within the paint film, which reduces the efficacy of the coating. We would recommend a brush application before a roller application.
  • Spray application – this method is preferable to roller application, but only after a brush application, as these two techniques combined provide full paint coverage.

Preparation for treating cut edge corrosion

Before the application of a coating to treat cut edge corrosion, the correct preparation needs to be carried out. First, remove any non-adhering rust staining, swarf, dust and debris, then clean back the corrosion to the Swedish Standard ST3, so you are left with a bright metallic surface. Ensure the surface is not polished and that the edge of any remaining coating is firmly adhered and well feathered. The area must also be free from any oil, grease, ice or frost. Finally wiping down with Giromax® Panel Wipe will ensure surfaces are free of dirt, mould, oil and grease.

Two step application process

Step 1

The Giromax® Basecoat epoxy primer forms part of the Giromax® Edgecoat system. Part A of the Basecoat must be mixed wholly with Part B (do not part mix). Apply the Basecoat in a continuous uniform line, preferably by brush to achieve the correct film thickness. Ensure the firm edge is overlapped by ideally up to 50mm (minimum 10mm) and full coverage of all exposed metal including the sheet edge has been achieved.

Wait until this coating is touch dry before proceeding onto the next step. Never use thinners with the Basecoat and do not use when the pot life has been exceeded.

Step 2

Where necessary; on sheet overlaps, including flashing laps and panel-to-rooflight laps;
gun apply Giromax® Sealant to the joint in a continuous line. Next, tool the sealant in an upwards direction with one coat of Giromax® Edgecoat. Apply by brush ‘wet on wet’ to achieve a smooth fillet to encapsulate and obscure the leading edge of the top sheet.

The next step is to apply Giromax Edgecoat to create a protective layer over the Basecoat. On overlaps, apply the Edgecoat to either side of the joint in a continuous uniform band at least 75mm wide. Make sure you overlap the Basecoat layer by 10mm to achieve a minimum dry film thickness (DFT) of at least 265 microns (μm).

For sheet end gutter overhang, eaves and flashing edges apply in a continuous uniform band at least 75mm wide. Make sure you overlap the Basecoat layer by 10mm to achieve a minimum dry film thickness (DFT) of at least 265 microns (μm).

Ensure the application has contact with the sheet underside to achieve full encapsulation of the sheet cut edge.

Always stir Giromax® products thoroughly before use. If required, only use a Giromax branded thinner. Application should start at a point furthest from the roof access to avoid disturbing new lap seals. If the cut edge corrosion is beyond its primary fixing, do not proceed and speak to our team for further guidance.

Giromax® Edgecoat is a moisture tolerant, BBA certified formula, which has been designed to treat both the top and reverse sides of the cut edge. This revolutionary cut edge corrosion treatment provides protection for up to 15 years.

If you need additional guidance on Giromax® Edgecoat application or advice about any of our products, please speak to the Giromax team or call 01455 558969 today.

How We Test Our Commercial Roof Coating Products

Avoiding damage from damp conditions and UV light

Thanks to the vagaries of the British weather, which has the potential to cause significant damage over time, it’s usually the roof of a building that bears the brunt. Damp conditions are a particular problem, as well as the fact temperatures typically stay below 10 degrees for a significant proportion of the year.

Roof systems are subject to lower temperatures than at ground level, including greater windchill. Therefore, asides from being moisture tolerant, roof coatings must be able to cope with all UK weather conditions. They need to have early resilience to heavy rainstorms and overnight freezing temperatures.

Coatings must also be able to withstand aggressive UV attacks, and these don’t only occur in dry, sunny weather. After a summer rain shower, a moist roof surface can be subject to some significant heating when the sun starts shining, creating an extremely aggressive environment. Our technical team go to great lengths to design our coatings to be as resilient as possible to cope with ever-changing weather conditions.

Flexibility and waterproof membranes

We build in a high degree of flexibility into our products, ensuring they can deal with all aspects of our British weather. Our attention to detail during the design process ensures our coatings are equipped with technology that protects colours from fading. We also make sure products have a waterproof membrane to help prevent surface degradation.

Coatings need to be flexible and robust enough to cope with someone walking on them, for example, carrying out a roof inspection of an air conditioning unit. Even something as innocuous as a dropped spanner has the potential to create serious damage.

Our in-depth process for testing coating products

Testing for resilience to UV damage is usually run on a continuous test cycle of 2,000 – 3,000 hours. But we don’t think that’s long enough, so we test for 15,000 hours – and then we keep on going! During the development phase, we undertake 18 months of testing, even when after 5,000 hours we can see that a product is very durable. We have a QUV accelerated weather testing cabinet, which is officially approved by ASTM International.

Our QUV cabinet exposes coated panels to cycles of moisture and UV light at elevated temperatures. This clever piece of kit can take just a few days or weeks to replicate the damage caused by several months or years of exposure to the elements. Fluorescent lamps are specially designed to produce UVA, UVB and UVC rays. Water spray and condensing humidity simulate dew and rain, replicating a whole range of weather conditions.

We undertake QUV testing for every coating colour we produce. Not all coloured coatings work in quite the same way, with some colours more prone to fading, while others may become less durable over time.

ASTM compliant testing processes

We use recommended ASTM procedures to check for a number of qualities in our coatings, including application, adhesion, surface abrasion, humidity and UV testing. When it comes to our testing protocols, we believe in double checking the results of our QUV cabinet findings. We think it’s particularly important to get outside to conduct many of our tests, even to the extent of hanging panels outdoors, whether on top of a container or on a panel rack. This lets us test actual weathering, both for signs of UV degradation and for performance.

When we remove panels from the QUV cabinet for closer inspection, this can often mean standing outside in stormy weather. We physically test coated panels because we want to see the effects, such as pooling water on gutter coatings when it freezes. This meticulous approach ensures our products are robust and effective for years to come.

Our roof coating products have been designed to withstand stormy weather conditions, and many environmental factors which could affect products have ironically improved these days. The weather is warmer, there’s no longer acid rain, and fewer factories are pumping out nasty chemicals into the air. Meanwhile, we continue to test and develop the weather-resistant membranes within our products to keep bad weather out.

When it comes to roof coating products, we are market leaders. Our technical expertise enables us to continually test, develop and improve our products. We can also provide application guidance to you and your clients. If you need advice about any of our products, please speak to the Giromax team or call 01455 558969 today.

Repaint, Reclad or Remove Asbestos?

The main problem with asbestos exposure is when this material is disturbed, due to damage or wear and tear. Before this happens, asbestos issues need to be addressed as quickly as possible. Although its use was banned from UK construction over 20 years ago, it is still present in many industrial buildings. It’s possible that some of your clients may not even be aware they are located within buildings containing asbestos, especially if they are tenants.

Health issues caused by asbestos

Known to be a major health issue once fibres are released into the air, the effects of exposure to asbestos fibres are cumulative over time, as they can’t be removed from the lungs. It can take years before asbestos damage starts to result in long-term health problems. Common health conditions caused by asbestos exposure include asbestosis, mesothelioma, various cancers, and benign pleural conditions.

Removing asbestos

When it comes to external roof and cladding, over time, excessive exposure to the elements can create damage and cracks. This creates ongoing and potentially costly maintenance issues. Any disturbance to a sheet of asbestos could generate problems, with strict disposal regulations pushing up removal costs.

On the exterior of a building, asbestos can be commonly found in:

  • Asbestos cement roof, gutters or downpipes
  • Asbestos cement panels or soffits
  • Asbestos cement flue

Removing asbestos is a particular area of concern, with a need for strict protocols to limit exposure. It can be extremely expensive, as it requires the relocation of employees from within the building while the work is carried out. If the building is a factory, the long-term financial impact of temporarily closing operations while the problem is being addressed can have a massive impact on revenue.

Recladding asbestos

Installing cladding over the top of asbestos could seal this in, making it impossible to be exposed to any damaging fibres. But there are major issues with this approach; the weight of extra cladding on top of the asbestos layer has the potential to compromise the structural integrity of the building. Consideration also needs to be given to snow load, which could cause structural failure to the roofing system. Moreover, planning permission is required for over-cladding, whereas painting doesn’t involve any planning approvals.

Repainting asbestos

Repainting exterior building materials containing asbestos is the most convenient and cost-effective solution by far, using a coating product specifically designed for this purpose. There’s no need to relocate to new premises while work is being undertaken, and there’s none of the disruption, safety issues and costs associated with removal or recladding.

Repainting with an asbestos coating product

Repainting ensures a safe and long-lasting solution to protect against asbestos in a commercial building. Dangerous asbestos fibres are sealed in, so your client’s roof will be protected for years to come. It’s possible to extend the life of an asbestos roof for a further 20 years, making this a cost-effective solution to the problem.

Start with a base coat primer

Our Giromax® Roofcoat system is moisture tolerant, sticking to the asbestos and sealing in the dangerous fibres while still wet, which makes it extremely popular with health and safety inspectors. This product gives the topcoat a uniform finish to adhere to, locking in any loose asbestos fibres and sealing in porosity.

The Giromax® Roofcoat also ensures a more pleasing overall appearance. Without the use of a primer-based coating system, the asbestos roof coating won’t give the required finish, so this is an important part of the process. There is a risk that the coating would dry with a patchy appearance, with some areas having a matt finish, while other parts appearing glossy.

When it comes to asbestos, some of your clients may need advice on how to deal with this dangerous material. Our innovative and cost-effective Giromax® Roofcoat can be safely applied to roofing systems containing asbestos, instead of costly or dangerous removal. Protect your roof for up to 20 years with our breathable, moisture tolerant, flexible coating.

Our technical expertise includes application guidance. Please speak to the Giromax team or call 01455 558969 today.

Industrial Cladding Refurbishment

Why metal cladding becomes tired and faded

As one of the strongest and most robust materials used for industrial buildings, metal cladding looks great when it’s brand new, presenting a positive effect on the business being carried out inside. But as it’s subjected to the British weather, cladding can be exposed to freezing wintry conditions, hail and gale-force winds, while the summer months bring the threat of UV damage.

Alternating hot and cold weather conditions cause the metal cladding to expand and contract, so within a few years it can start to look a little faded and tired.

Repainting can be a better option than replacing

There’s no need to replace metal cladding just because it’s looking a little past its best. Although metal cladding isn’t the most expensive building material, it’s still a costly business to have to remove and replace. Instead of such drastic action, repainting the cladding is simple and more cost effective.

Advise your clients to seek a professional inspection before they repaint their metal cladding. Any resulting recommendation can help to prolong the life of the cladding and it makes sense to apply a suitable coating system for industrial cladding for protection. It’s also important to make sure any application undertaken observes best decorative practice to ensure the best possible aesthetical finish and quality workmanship.

Painting metal wall cladding can extend its life by ten years or more, helping to protect it from water, UV damage and corrosion. When you compare this with the cost of replacement, it’s easy to see why refurbishment is the better option!

How to repaint metal cladding

Painting on to metal isn’t as complicated as it may seem, but there are specific techniques. With such a wide range of colours available, your clients will be able to pick and choose the ones that suit their business and support their brand identity. The paint can be applied by brush or roller, but spray painting is considered to be the most appropriate option, as it’s easier to apply the paint and gives a smoother and more professional finish.

Prepare the surface

Preparation is the key to a good finish when painting metal cladding, so this isn’t a process that can be rushed. The cladding needs to have all dirt, grease and rust removed before painting commences, which is why it’s a good opportunity to attend to any issues such as rust spots and any damage.

If this is the first time that the metal cladding will be painted, a suitable metal primer might be needed to provide an extra layer of protection. It can sometimes help to give a more stable surface for the paint to adhere to.

Apply an undercoat

Depending on the paint, your clients might need to use an undercoat, so you may need to remind them of its importance. Applying an undercoat can help to extend the lifespan of the refurbished metal cladding, as it provides an extra layer of protection. It also gives the paint extra staying power and could even help it to last for fifteen to twenty years.

Choose your paint colour

There’s a huge variety of paint colours these days, so your clients can give their metal clad premises a whole new lease of life, while promoting their own brand. Or perhaps they would prefer to blend their premises in with their surroundings, using muted, natural colours. Whichever colours and designs they decide on, their refurbished wall cladding will continue to protect the building for many years to come. And that can make all the difference when it comes to the end of a lease if your client has to face the issue of dilapidations.

Aim for a professional finish

For the most professional finish, you might wish to advise your clients to employ a professional organisation to undertake their metal cladding refurbishment. This will ensure that any problems with the cladding are effectively dealt with before painting commences. Your clients will benefit from an excellent paint job that will help to prolong the life and appearance of their industrial premises.

When it comes to refurbishing industrial cladding, our expert technical team can advise on the suitable application of our product range. As well as starting the market, we lead the market, and we have in-house product expertise. If you need advice about suitable cladding paint, please speak to the Giromax team or call 01455 558969 today.

To Seal or Not to Seal: Metal Roof Repairs

Before applying a roof coating, or treating cut edge corrosion, it is often advised to seal the gap at the end lap of every roof sheet. But should they be left unsealed? According to a technical paper (TP16) originally published in 2004 but updated in 2015, the advice is very much to seal. This paper was produced following testing by MCRMA, which has long recommended butyl strip seals up to 5mm thick for sealing gaps where the sheets overlap.

British Steel also became involved in the debate, having come up with a solution designed to fix problems arising from roof overlap. The British Steel specification was created to prevent rainwater from affecting the overlap through the application of an external seal, which must be flexible, UV stable and with strong adherent properties.

Specific problems surrounding metal roof overlap

When roofing sheets are manufactured, the reverse side is coated with Plastisol, which is applied in a very thin layer. This backing coat is water permeable, and once in contact with water, the zinc layer on the reverse side will start to erode. This is a particular issue at any roof overlap, where the cut edges of the metal sheets are continually exposed to the elements.

Surface tension ensures that water is held on the cut edges of the metal. And once water is drawn into the lap between the sheets, capillary action draws it up further, holding it in place where it can quickly start causing damage. Because the water is held in place within the gap, those exposed parts of the metal sheet never dry out completely, which has the potential to create serious damage over time. Eventually, the zinc layer on the reverse side of the sheet becomes eroded, potentially allowing the ingress of water into the building, compromising the roof’s integrity.

The British Steel specification addresses the problem by the application of an external seal, but this option isn’t without its flaws. Although the seal prevents the ingress of rainwater into the lap, it can also act as a dam. This means water entering the lap due to another issue, such as a failed seal or fixing, is unable to escape. After all, the purpose of an overlap has never been to allow water to drain away from the roof. Capillary action will always ensure water is retained in the lap, and that can lead to expensive problems further down the line, once water damage has occurred.

Is it better not to seal?

When a metal roof has been well constructed, water is unable to enter the lap other than by external means. However, a poorly constructed roof, or failed components, can cause water to dam behind the seal, where it will eventually start to leak into the interior of the building. So perhaps it’s better not to seal. After all, if residual moisture within the lap can’t escape, surely there are bound to be problems at a later stage?

But if the lap isn’t sealed, leaks are almost certain to occur. Without any seal, the capillary action that draws water between the sheets isn’t prevented. Over time, it’s inevitable that the reverse side of the metal sheet will be subject to corrosion, eventually allowing water to leak into the building. The only way to deal with this scenario is to investigate the source of water ingress and stop it from occurring. Once the cause of the leak has been identified and dealt with, it’s essential to dry out the metal sheet as fully as possible before sealing the gap.

Although rust will inevitably develop from the iron content of the steel reacting with oxygen in the presence of water or moisture, this is only temporary when a coating is applied to the lap. As long as there’s no ongoing presence of oxygen, any water within the lap will evaporate as the metal roof is warmed by the sun, resolving the issue permanently.

When it comes to Giromax® products, we not only started this market, but we lead the market. Our coating technology expertise enables us to continually develop products and provide guidance to you and your clients. If you need advice on any of our product range, please speak to the Giromax team or call 01455 558969 today.

The Importance of CPD Training

Regular CPD training ensures up-to-date and effective health and safety policies are led from the top, adhering closely to legal requirements. This usually underpins a company’s health and safety policy statement, setting out the company’s procedures in a clear way. The policy statement should include clear descriptions of who is responsible for specific roles, so that everyone in the organisation has a clear understanding of their own accountability.

Whether you’re a RICS-regulated organisation or you’re a non-affiliated company, every surveyor must comply with its clients’ health and safety requirements. This can involve specific CPD training for contractors and subcontractors and company policies may need to cover:

  • Health and safety training.
  • Identification of potential risks.
  • Clear accountability for health and safety management.
  • Appropriate procedures and policies for managing health and safety issues.
  • Appropriate insurance, including public liability insurance and employer’s liability insurance.

The concept of a ‘safe person’

One of the aims of RICS is to promote the idea of a ‘safe person’. This concept encourages individuals to take responsibility for their own behaviour, while ensuring the safety of their colleagues and any other personnel they encounter during the course of their work.

CPD training enables surveyors to be aware of the latest guidance, so you can implement specific processes on areas including:

  • A safe and secure working environment.
  • Appropriate equipment and safe working systems.
  • Well-trained employees who understand what’s required of them.

The above points are easier to achieve in a low-risk environment, such as an office, but it is much more complex when working on potentially hazardous sites. Therefore, it’s primarily down to managers to ensure health and safety compliance.

The following benefits can be achieved through regular CPD training:

  • Workers have the knowledge and skills to complete the tasks required of them.
  • Ongoing training helps employees recognise and deal with potential hazards.
  • Keeps employees informed about specific risks associated with their work and control measures can be issued.
  • Provides appropriate equipment for employees.
  • Defines safe working practices and ensuring these are adhered to.

Employees have responsibilities too

Using the example of an organisation’s health and safety policy, it’s also down to individual employees to make sure they take responsibility for their own safety. This means ensuring they have the necessary skills and competence to undertake their work safely. They may need to improve their skillset or undertake additional CPD training, if necessary, so they have the ability to recognise their shortcomings and limitations. They can then seek to redress any imbalances.

Adapting to change

It’s down to every organisation to create effective workplace policies, but it’s not always possible to define every type of working environment. The very nature of surveying work means that exposure to a wide variety of working conditions and environments that all offer different challenges is inevitable.

Furthermore, every individual’s perception of risk varies according to the circumstances in which they find themselves. Someone’s age, or previous experience, could influence their decision making. This is something that needs to be factored in when defining potential risks in the workplace and may result in the need for training.

Using the example of health and safety again, regular CPD training helps to ensure a proactive approach to compliance. Every employee should therefore aim to accept the following responsibilities:

  • Cooperate with their employer and other employees to ensure the health and safety of everyone who could be affected by their activities.
  • Accept their own responsibility for keeping themselves safe, by adhering to all requirements, whether defined by law or by management.
  • Share health and safety information with others and strive to promote safe methods of working.
  • Report health and safety risks to management, along with any breaches of the rules.
  • Ensure their own competence is maintained at acceptable levels, when it comes to health and safety concerns.

Specific dangers of working at height

One of the primary risks when working on site comes from working at height, such as when carrying out roof inspections or repairs. For example, scaffolding must be checked by a competent person before it can be safely used, whilst cherry pickers must be certified as safe before being used by a trained operative. For more insights, read our blog Health and Safety – Working at Height on Roofs.

Gable walls, parapets and chimney stacks are always areas of concern, as are bulging, leaning or unrestrained walls. Corroded fire escapes represent an additional hazard, while rotten or corroded beams could cause a roof to collapse, with potentially catastrophic results. By undertaking ongoing CPD training, you and your colleagues will always be aware of the latest guidance on such hazards to ensure health and safety protocols are in place.

When it comes to commercial roofing systems, Giromax® products offer innovative, market-leading solutions for cut edge corrosion and weather damage.

If you need advice on any of our product range, please speak to the Giromax team or call 01455 558969 today.

Health and Safety – Working at Height on Roofs

Non-compliance could have a devastating effect on your company, especially the financial impact of hefty fines relating to areas not covered by insurance.

The onus is on employers and managers to assess the risks involved in working at height. Failure to comply could result in accidents and even fatalities, so it’s essential that everyone knows the risks involved. While working on a roof, each stage of the process requires a thorough risk assessment to ensure every potential danger can be identified in advance.

Safety measures for working at height on roofs

According to the Work at Height Regulations 2005, workers should aim to do as much of their work as possible from the ground. But as you and your clients already know, when a roofing system needs attention, that’s simply not an option. Where workers have to physically work on a roof, managers have a duty of care to provide appropriate equipment and measures to ensure the safety of everyone involved.

Anyone working at height must be provided with a safe route to and from the roof, with extra precautions when working close to fragile surfaces. Equipment must be inspected before use to ensure that it’s fit for purpose, with scheduled maintenance checks to keep it in good working order at all times. Workers may also need to be reminded of the need not to overload themselves, or to overreach, as this could compromise their safety.

Your clients may need reminding that it’s essential to consider the risks of falling objects, which will require additional protection for those who might be affected. And it’s important to consider they have rescue procedures in place for emergency evacuations too, so that every eventuality is covered.

The risks involved in working at height on roofs

It’s estimated that up to one in five deaths in construction result from roof work. Working at height on a roof isn’t something that can ever be taken lightly; it’s a high-risk activity. So, it’s not surprising that the Health & Safety Executive has published detailed safety guidance. Not all roof-related accidents and fatalities involve specialist roofers; general repairs and cleaning work are also cited as being particularly dangerous activities.

Falling from a roof edge is obviously the primary concern, but there are other hazards to watch out for too. Fragile roof structures could give way, with openings and rooflights presenting additional dangers. Unsuitable or inadequate equipment, and poorly trained or supervised operatives are also implicated in accidents when working at height. It’s important to address any potential risks before scheduled roofing work is sanctioned.

Providing safe access to a roof

Careful and effective planning is required before allowing anyone to work at height on a roof and this starts with providing safe access. Your client or contractor may need to check how safely this can be achieved, through one or more of the following methods:

  • Ladders and stair towers
  • Roof openings and roof access hatches
  • Scaffolding; mobile or fixed scaffolding towers
  • Mobile access equipment, such as a cherry picker

A sloping roof needs to be surrounded by scaffolding to protect both people working at height and those below on the ground. It’s a sensible precaution to fit some edge protection too as an extra layer of safety. Ladders may be used for tasks that are of short duration, but they must be properly secured and fit for purpose.

Workers on flat roofs can be protected by installing edge protection, as well as double guardrails and toe boards around the edge as an extra precaution.

Working at height on fragile roof surfaces

The advice from the Health & Safety Executive is to treat all roofs as fragile in the first instance. It should be determined whether the roof is capable of supporting the weight of workers. In particular, the guidance suggests that sheeted roofs of any type should be considered incapable of bearing a person’s weight, including roof ridges and purlins.

It is wise to remind your clients they have an obligation to provide additional protection around rooflights, which are often obscured by paint and can be difficult to spot. This protection takes the form of covers or barriers, which must be well secured and clearly labelled with warning messages.

Using a platform underneath the roof is an effective method for ensuring that workers remain safe at height. Your clients may wish to use guard rails, stagings, safety nets, fall restraints and fall arrests in combinations suitable for the specific situation.

When inspecting a roof, you may discover different forms of damage. If you need advice when it comes to choosing a suitable roof coating product, please speak to the Giromax team or call 01455 558969 today.

Our Giromax® products offer innovative, market-leading solutions for commercial roofing systems and we are cut edge corrosion specialists.

The Swedish Standard Classifications for Preparation

The Swedish Standards provide clear guidelines for making processes safer and more efficient. At the same time, they encourage the conserving of resources to reduce environmental impact. The Standards for the preparation of steel surfaces prior to painting and coating have been widely adopted for many years. It’s worth noting that the lifespan of an anti-corrosive coating over steel relies heavily on the thoroughness of how the surface is prepared before application. You may need to explain the benefits of preparation to clients.

Rust grades

The approved Standard classifications for preparation outline four specific grades of rusting, together with a number of preparation grades. For the purposes of the Standard, surfaces are deemed to be hot-rolled steel in states of rust classified from A – D according to the following criteria:

Grade A – the surface of the steel is completely covered with adherent mill scale, showing little or no signs of any rust or oxidisation, and with no pitting.

Grade B – the surface of the steel has been exposed to the elements and shows signs of rusting, with the mill scale beginning to flake.

Grade C – the mill scale has rusted away from the surface of the steel, due to prolonged exposure to the elements. Any remaining mill scale can be easily scraped off, and early signs of surface pitting may be visible.

Grade D – exposure to the elements has rusted away all remnants of the mill scale, due to surface oxidisation. Signs of rust and pitting are clearly visible to the naked eye.

There are further classifications denoting the use of specific tools to restore the surface of the steel to a condition in which it can be coated. A variety of abrasives and techniques are listed to grade the quality of the treatment and surface, as follows:

Hand and power tool cleaning

St 2 – The steel is scraped with a hard-metal scraper, wire brush or disc sander, to remove loose mill scale and rust. Once cleaned and dried, using a clean brush or compressed air, the steel should be left with a slight metallic sheen.

St 3 – A disc sander, power brush or other hand-held tool is used to thoroughly scrape away all traces of rust and mill scale. Once cleaned and dried the steel will have a definite metallic sheen.

Blasting with abrasives

Sa 0 – No surface preparation is undertaken.

Sa 1 = Light blast cleaning, in which the jet is moved quickly across the surface to remove loose mill scale and rust.

Sa 2 – Commercial blast cleaning. The jet is moved more slowly across the surface, removing all traces of mill scale and rust. The steel is then cleaned and dried thoroughly.

Sa 2.5 – Near-white blast cleaning. Mill scale and rust are removed so completely that slight shading on the surface is all that remains. The steel is then cleaned and dried thoroughly.

Sa 3 – White metal blast cleaning. The jet moves slowly across the surface, completely removing all traces of rust and mill scale. Once cleaned and dried the steel has a uniform metallic colour.

As an example of how the classification process works, a steel surface with a B grade for rust, when blast cleaned to a preparation grade of 2.5 would be given a rating of B Sa 2.5.

Preparing steel for coatings

Shotblasting Abrasive blasting is the preferred method for cleaning and descaling steel surfaces prior to the application of a protective coating. This encourages maximum adhesion as well as limiting the risk of any further corrosion taking place once the coating has been applied. The aim is to provide a profile height that remains consistent across the steel, encouraging a uniformly ‘keyed’ surface. This ensures the coating can be evenly distributed, with superior staying power and a greatly reduced chance of hairline cracks appearing in the coating further down the line.

You may need to remind your clients that a prepared steel surface can quickly deteriorate when exposed to the elements. It’s essential to maintain the steel in a dry condition before applying the coating as soon as possible, or there may be a risk that further treatments might be necessary. Choose the best coating for the job, which can cope with the damp British weather and can withstand the elements and environmental issues.

When it comes to preparation for a roof coating product, the Swedish Standard classifications for preparation are the preferred approach and will prolong the life of your roof coating.

Giromax® products will also help you to prolong the lifespan of commercial roofing systems. We offer innovative, market-leading solutions for cut edge corrosion and weather damage.

If you need advice on preparing roof systems or applying any of our product range, please speak to the Giromax team or call 01455 558969 today.

How to Avoid a Big Dilapidations Bill

Of course, in your line of work, you’ll have seen it all before. And unlike those starry-eyed tenants, you’ll be only too well aware of the cost ramifications heading their way in the form of end-of-tenancy dilapidations. So, you’re particularly well placed to advise them about the potential costs they could be facing further down the line.

More than just a lick of paint

Left to their own devices, most commercial tenants tend to assume that their responsibilities to the landlord are mainly a repaint and a repair of any obvious damage. It’s certainly a reasonable assumption to make. But unlike your clients, you have the benefit of knowledge to see potential pitfalls with obscure dilapidations clauses in tenancy agreements!

Things are always so much easier when surveyors are brought in before the start of the lease. This gives you plenty of time to assess the property’s condition before the tenant moves in. You might suggest a Schedule of Condition as a good starting point, particularly where there’s already a lot of work that needs to be attended to at the property.

It’s a little trickier when you’re consulted towards the end of the lease, as you’ll be working with a contract already in place. But you can still reassure your clients that they won’t necessarily be landed with a hefty dilapidations bill at the end of the tenancy. By assessing the current condition of the premises, and by studying the full terms of the lease, you may be able to advise them of ways to minimise their financial responsibilities.

Keeping repair costs down

You might encourage your client to organise some repairs before the end of the lease. This could be cheaper than negotiating with the landlord for the repair work to be carried out. Explain that regular maintenance checks will identify problems before they become critical, which also minimises repair costs.

Remind your clients not to overlook the roof of their building, as problems tend to occur out of sight with the potential to cause huge amounts of damage before they’re spotted. Taking a proactive approach can save greater expense further down the line. Our specialist roof coating products can help to prevent water damage, including protection against cut-edge corrosion. Our roof products are BBA Approved and protect against weather extremes, high impact and dirt resistance.

When checking a property for dilapidations, always ensure your clients are advised in advance of the potential cost of repairs. Remind them that timely maintenance is always the best route to avoid any issues arising between landlords and tenants.

For advice on protecting industrial roof systems, please contact our Giromax team. Call 01455 558969 today or make an enquiry.

Always Check Clauses in Commercial Leases

Consider potential repairs from the outset

Right at the start of the lease, paying out for dilapidations may not be at the forefront of either party’s minds, so you’ll need to advise them of what’s at stake. Overlooked clauses could amount to some extremely costly claims once the lease comes to an end.

Most commercial leases require the tenant to maintain the premises in a good state of repair. The actual definition of what’s required needs to be laid out clearly, so that both parties are fully aware of their responsibilities. In some instances, you may decide to recommend a Schedule of Condition be attached to the lease, which could limit the tenant’s obligation for certain repairs.

At the end of the lease term, as a dilapidations specialist, the landlord may have opted to send you in to conduct a thorough inspection of the property. Any resulting Schedule of Dilapidations will detail every single breach of the repair covenants, leaving the tenant with the option to action the necessary repairs, or to reimburse the landlord for them. So, what happens if your client is the tenant?

Tenant defences against paying for dilapidations

If your client is a tenant looking to avoid paying for dilapidations, you could guide them in a couple of useful directions. For example, the tenant may decide to make use of section 18 of the Landlord and Tenant Act of 1927 by electing to repay dilapidations only up to the amount that the property is devalued by the need for repairs. This amount could be considerably less than the actual dilapidations schedule might suggest.

Tenants may also avoid paying for dilapidations when the landlord intends to demolish or alter the premises following the expiry of the lease. Some form of proof will be required, such as the granting of planning permission, or approval of building regulations for change of use. Simply believing the intention is there is not sufficient to challenge a demand for dilapidations to be paid.

Whether you’re acting on behalf of a tenant or a landlord, remind your client to undertake rigorous checks of every part of the premises. Roof systems are often out of sight and out of mind but may result in costly and time-consuming repair work.

When advising your clients with regards to dilapidations, always remind your clients to carefully check any clauses in the lease to avoid any legal issues arising.

If your clients need advice on maintaining an industrial roofing system, please ask them to contact our Giromax team. Call 01455 558969 today or make an enquiry.

5 Weird Things Found on Rooftops

1. Pigeons

Lots of us like to feed the birds but spare a thought for the poor neighbours of one US pigeon fan. He fed the local birds so often and lavishly, that around 200 pigeons regularly camped out on his roof. This was good news for his local roofing contractors, however, who were called out twice in one year to replace damaged and broken slates.

2. Drones

One homeowner found a drone on his roof and managed to trace the owner by looking at the images on the onboard camera. Meanwhile over in Japan, traces of radioactive material were found on a drone on the Prime Minister’s roof a few years ago. It was believed to have been landed by someone with a grudge against his policies at the time, although nobody was ever charged. Radioactive substances aside, drones have the potential to cause severe damage to roofs, particularly if blown off course by winds.

3. Thieves

Police found a bunch of thieves on a roof in Louisiana, all of whom were industriously removing the roofing materials and claiming the money back at the local hardware store. When staff at the store became suspicious, the police intervened and found the thieves somewhere more suitable to spend their time!

4. Safe

Owners of a house in the US came across a locked safe on their roof. Hidden from view from the ground, the safe was believed to have been put there by the previous owners, who forgot about it when they moved. Although undamaged – and even found to contain some semi-precious stones – the safe itself had the potential to cause severe damage to the roof, not least due to its size and weight.

5. Fish

You wouldn’t usually expect to find fish on a rooftop, but freak weather conditions have been known to have unexpected consequences! Koi carp and catfish have both been found on rooftops, presumably lifted up by freak storms. While fish are unlikely to cause much in the way of damage to a roof, the fact they were there at all will have led to a thorough inspection for any other storm damage at the same time.

Have you ever found weird items on your clients’ roofing systems? It’s always worth reminding your clients to check their rooftops regularly to reduce the risk of any avoidable damage caused by debris, which needs to be removed as quickly as possible.

Our GIROSIL® Coating Products offer total protection for cut-edge roofing systems and gutters. BBA Approved and guaranteed for up to 20 years (roof coating) and 15 years for Edge and Gutter coatings, GIROSIL® products can be sprayed directly from the tin and include high impact and dirt resistance.

Please speak to the Giromax team if you need advice on products for repairing rooftops and gutters. Call 01455 558969 today or make an enquiry.

How to Future Proof Your Industrial Building

Sustainable building materials

Precast concrete is rapidly becoming one of the most popular modern construction materials, thanks to its outstanding green credentials. With a very low water to cement ratio, precast concrete is incredibly durable, recyclable and environmentally friendly. But it’s certainly not the only option. Prefabricated panels and modular construction methods are greener and more cost-effective than traditional building methods, making it easier than ever to create ecologically sound warehouses and industrial units.

For existing buildings, even something as seemingly simple as improving insulation will have an immediate impact on overall running costs. For example, applying heat reduction film to office windows can help to lower the amount of energy used, resulting in savings for you or your client and less pollution for the planet.

Reducing running costs

Good quality lighting, ventilation and a comfortable working temperature all lead to a happy workforce, which is likely to improve your productivity levels. An increase in operational efficiency with a corresponding decrease in energy consumption is a big positive!

Natural light is the most desirable – not to mention cost-effective – option, but where this isn’t practical, smart lighting offers an environmentally friendly alternative. Sensors detect when someone is approaching, ensuring lights switch on and off intuitively. Other green initiatives being adopted by building developers include solar panels on the roof, heat pumps for renewable energy-based heating, and even rainwater collection for flushing the toilets.

Extra protection for the roof

The industrial roof bears the brunt of our increasingly extreme weather events, whether this is searing heat, biting cold, gale-force winds or torrential rainfall.

Flat roofs come with problems of their own, such as ponding water, which can lead to catastrophic damage if not tackled immediately. Cut-edge corrosion is another issue which can lead to unexpected and unwanted expense if not addressed as a matter of urgency.

If you’re a surveyor, climate change is likely to result in more costs for your client in the future, unless they take action today to protect their buildings and roof systems. It’s clear there’s a pressing need for robust, weather-proof coatings which can withstand everything the British weather can possibly throw at them. High-quality roof coatings can help to protect against weather damage caused by climate change and any escalating overheads.

Don’t forget that our GIROSIL® Coating Products are BBA Approved and can offer your clients up to 20 years’ protection for roofing systems. Our single coat system delivers market-leading performance, choice and reliability in the treatment of cut-edge corrosion.

Please speak to the Giromax team if you need advice on any of our product range. Call 01455 558969 today or make an enquiry.

10 Things Found in Roof Gutters

1. Earthworms

Earthworms should be in the ground, under the soil. So why do so many of them seem to end up in gutters? It’s a perennial mystery, although the theory is that earthworm eggs are dropped onto roofs by birds and insects. And with new earthworms being born every seven days or so, a gutter can play host to a tangle of them within just a few weeks.

2. Birds

Some birds choose to build their nests in guttering, which is an inconvenience for building owners, but nothing can be done during the breeding season. Once the fledglings have flown the nest it needs to be dismantled and removed, to prevent twigs, sticks and debris, which could create ponding water on the roof.

3. Plants

Seeds can be carried by the wind or by birds and insects, finding a home in the general sludge and silt that builds up in most gutters over time, especially if they’re not regularly cleaned out. All manner of plant life can quickly start making its presence felt, with root systems potentially harming the integrity of the roof.

4. Mice

Drainpipes and gutters make perfect highways for mice, rats and even squirrels. Sharp claws – and even sharper teeth – can cause an incredible amount of damage in a short space of time, so speedy removal of persistent rodent pests is essential.

5. Bees

Damp, organic decaying matter is highly attractive to bees, wasps and hornets, and the height of gutters makes them ideal nesting places. Aside from the question of safety for people living and working nearby, the weight of these nests can also be a cause for concern. Particularly large specimens can damage the gutter, and even the actual roof, so swift action from a certified pest controller is the only option.

6. Toys

Footballs, tennis balls and frisbees are all items you’d expect to have made their way up onto roofs and into gutters over the years. But one red-faced contractor was completely lost for words when he came across a toy of a much more adult nature when examining his client’s guttering. Apparently, to spare everyone’s embarrassment, he opted not to return it, choosing instead to quietly dispose of it!

7. TV remote control

Finding a remote control in your gutter is definitely unusual, and almost certain to be the result of a prank or a domestic spat. We can all commiserate with the pain and annoyance of a missing remote, but how many of us would even think to check out the guttering during our search?

8. Shoes

We’ve heard of two separate cases of finding shoes in the gutter, both of the high-heeled variety. One contractor reported finding a lone black stiletto shoe, while someone else found a red version. Why just one shoe? And how did they get up there? We’re still wrestling with that one!

9. Bones

Nobody wants to find bones in their gutters, but it’s something that can happen, particularly near the coast, with seagulls being the obvious culprits. They scour the streets for left-over chicken dinners, depositing the bones high up in the gutters, where they scare unwary roofing contractors into thinking they may have uncovered a crime!

10. Snakes

This isn’t such an issue in the UK but spare a thought for roofing contractors in the US, Australia and more tropical countries. Downpipes and gutters are warm, dark and moist – ideal conditions for snakes of all varieties – and some are highly poisonous. Expert snake handlers are a given in this scenario, making us extremely grateful that it’s a situation we don’t have to face in this country!

 

As a roofing contractor, you’re bound to have found a whole host of strange items in your clients’ roofing systems over the years. It’s always worth reminding your clients to check their roof regularly to reduce the risk of any avoidable damage caused by debris.

Our Giromax® Guttercoat product offers total protection for roof gutters. Easy to apply and designed to coat metal, concrete and asbestos guttering, this product will withstand all weathers and temperatures, including UV rays, and has a 15-year guarantee.

Please speak to the Giromax team if you need advice on products for repairing gutters or roof systems. Call 01455 558969 today or make an enquiry.

Why Maintaining Roof Systems Protects Businesses

Looking for greener solutions

The UK government has announced its plans to reduce emissions from their 1990 levels by 78% within the next fourteen years. And by 2050 the aim is to be three-quarters of the way towards being net carbon zero. Businesses will be required to take a closer look at the way they operate, and the roof has a huge part to play in aiding greener solutions.

For example, solar panels could help to generate power, enabling your clients to offset some of their lighting and heating costs. When combined with other initiatives, such as intelligent lighting systems and recycled packaging, this can significantly reduce your client’s carbon footprint – a fact that helps to seal their environmental credentials. There’s a lot of scope for improving industrial roof systems, and much more than most people realise.

Out of sight shouldn’t be out of mind

Your clients may be trying their best to keep their business afloat in these challenging times. So, it’s reasonable to assume they won’t have the roof earmarked for regular expenditure. It’s important to convince them that, although the roof may be out of sight, it has such a key role to play. Factoring in regular roof inspections helps to keep the business, employees, equipment and stock safe and dry in all weathers; it should never be out of mind.

It may be a hard sell sometimes, but it’s worth taking some time to persuade your clients to consider the facts. Unlike residential roofing, industrial roofing is subject to more than just the extremes of the British climate. What goes on inside the premises also plays a part, with many roof systems subject to chemical exposure and exhaust fumes. And the roof is often used to support ventilation shafts, roof lights and chimneys, all of which have the potential to cause problems over time.

Emphasise to your clients the implications of a roof problem, for example, if left unattended, a minor leak or puncture will escalate over time. The longer it goes unnoticed, the greater the amount of damage will be caused. Failure to take account of a roofing issue could potentially lead to damaged stock and equipment and, at worst, the need for a full roof replacement.

And if your client still isn’t convinced, an assessment of their insurance might just help to swing the balance in your favour. After all, the lack of a regular roof maintenance programme is likely to impact negatively on any insurance claim, with potentially devastating financial implications for a business.

The importance of a roof maintenance programme

As every roofing system has a lifespan, with the help of an effective maintenance programme, this can be extended to its maximum limits. Businesses should be made aware of the need to spot leaks, punctures, weather damage, signs of cut-edge corrosion, ponding water and other problems before they have the chance to develop into major issues.

An annual inspection of the roof is unlikely to be sufficient for many businesses. A minor leak today could have severe consequences a few months later down the line. Once water ingress has become noticeable within the building the damage is likely to be extensive, including the associated costs to put things right. Therefore, it makes economic sense to put a regular roof maintenance programme in place.

Regular inspections of an industrial roof can identify issues long before they have the opportunity to become major problems. Even something as simple as removing debris from gutters twice a year can have a huge impact on future expenses. Blocked drains, loose flashings, early signs of cut-edge corrosion and standing water can be dealt with swiftly, before they have the chance to cause even more damage.

In addition to twice-yearly inspections, we suggest recommending that your clients request a professional inspection of the roof after exceptionally heavy rain and storms. Removing debris as swiftly as possible will limit the damage, including the removal of any organic matter from the roof and gutters to prevent the future growth of algae and plants.

When checking a roof for a client, always advise them of the long-term costs of failing to maintain an adequate roofing system and the impact this could have on their business. An initial outlay of early repairs could lead to less costly maintenance in the long run.

The Giromax team have years of technical expertise to provide you with guidance on roof and gutter repairs. View our product range, call 01455 558969 today or make an enquiry.

What is the Best Treatment for Cut Edge Corrosion in Profiled Steel Roof Sheeting?

What is Cut Edge Corrosion?

Roof sheet manufacturers’ performance statements refer to the lifetime of the pre-finished steel sheet in terms of the period when the building owner must consider whether to re-paint the sheet, either to upgrade the aesthetics or to preserve protection of the steel substrate. Within that lifetime, edge peel may arise from normal weathering. It is most often seen at sheet overlaps and at eaves and gutter overhangs, and if neglected, this edge corrosion can eventually compromise the structural integrity of the sheet.

The development of cut edge corrosion is difficult to predict. It is progressive by nature and accelerates in proportion to the accumulation of conductive elements especially capillary held water, eventually overcoming the protective sacrificial barrier which is usually zinc or a zinc alloy. Ideally, long sheets from ridge to eaves should be specified, reducing the need for overlaps. In practice, this is not always possible where long runs or translucent sheets are required.

Cut Edge Corrosion

How can we treat Cut Edge Corrosion?

If the problem of cut edge corrosion has subsequently arisen, its treatment must necessarily follow a specification that excludes water from the lap, without the ability to lift and reset the roof sheets. In addition, the joint must remain flexible enough to accommodate stresses from building movement, sheet expansion and foot traffic and withstand extremes of weathering, temperature, and UV.

This is a difficult specification to achieve and one that was best serviced for many years by the use of the traditional silicone system. Successful treatment however, depended on two key factors which inevitably could be viewed as system limitations.

What are the limitations of traditional silicone based treatments?

1. Firstly, corrosion control depended entirely on the adhesion properties of silicone in being able to smother and starve the substrate of the two main agents of rust – air and moisture.

Using a silicone-based system, adhesion can only be achieved on a completely dry surface.

2. Secondly, to fully accommodate sheet movement and keep the lap sealed, the system must remain flexible.

A silicone-based system remains relatively soft, especially during its curing cycle which makes it potentially vulnerable to impact and abrasion damage, especially from the curiosity of birds.

So what options are available that avoid the limitations of silicone based systems?

With these restrictions in mind Giromax have introduced a more technologically advanced solution.

Giromax® uses the latest hybrid technology that takes full advantage of properties introduced and developed to overcome the application and wear limitations of silicone alone.

Fully moisture tolerant, the Giromax® system can adhere to all surfaces in the treatment of corrosion, by penetrating and binding at the molecular level to barrier air and moisture from the substrate using laminar flake technology.

By removing application restrictions and performance limitations, the Giromax® system achieves complete adhesive encapsulation of the overlap, hardening to a tough elastic coating with high impact and abrasion resistance.

What impact will this decision have on your commercial roofing project?

Using the latest technology and avoiding the limitations of traditional silicone systems will lead to better results in less time, saving on labour costs and allowing you to complete more work faster.

If you are still using traditional silicone based systems, here are the reasons why you need to shift to Giromax technology:

– One Coat System

– Use straight from the tin

– Comprehensive Colour Range – at no extra cost

– Same Day Wash and Apply

– Reduced Labour & Access costs

– Cures harder – resilient to ‘Bird Attack’

– Less time spent on site and working at height

– 20 Year Guarantee

Have more questions? Need pricing information?

Get in touch

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Giromax® Data sheets + Specifications, Girocote Data sheets.