GIROMAX SOLUTION: Repair Substrate

Avoid costly replacement and prolong the life of your system by simply repairing the lining. A lot less hassle all round.


A roof gutter at eaves or central valley location forms the main component of a system which collects and diverts rainwater shed by the roof to protect a building’s foundation by channelling water away from its base. They also help to reduce erosion and protect painted surfaces by reducing exposure to water.

Rain gutters can be constructed from a variety of materials, including cast iron, lead, galvanised steel, copper, aluminium, PVC (and other plastics), concrete, asbestos cement and single-ply.

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Girosil Roofcoat RC (Asbestos) Blue Tin.

The safest most effective coating solution for your asbestos roof sealing/encapsulation.

Why not swap costly replacements for cost effective repairs. Not only will you save money, you’ll also reduce timescales and massively minimise on-site impact. 

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PROBLEM: Aged Degraded Leaking Asbestos Sheets

Asbestos sheeting was originally introduced as a lightweight alternative to commercial slate and tile roofing. Fibres of mainly white chrysotile asbestos provided the strength and flexibility to allow cement sheets to be pressed into standard profiles that carried a realistic 50 year life expectancy. Manufacture continued until the early 1980’s when the dangers of asbestos led to its replacement, mainly with PVA cellulose. To minimise Asbestos Problems.


We understand the costly nightmare of a leaking asbestos roof. Old leaking asbestos roofs present a special maintenance problem. Sheets are fragile and often cracked while loose, corroded fixings add to lift and leakage.


The dangers of disturbing the asbestos sheet means even the simplest repair must be undertaken by specialist contractors to avoid airborne release of harmful fibres. Stringent disposal regulations means replacement is costly and hugely disruptive.

Over-sheeting adds weight, risks disturbing the sheet through fixing and may lead to condensation without addressing the underlying problem of deteriorating asbestos cement. This scenario is faced by thousands of industrial and commercial units throughout the country.

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Asbestos Roof Problems


Total Surface Encapsulation

The safe and cost effective solution is total surface encapsulation. This offers total protection for your commercial asbestos roofs. Treat your sheets to our fully breathable, to Flexible, UV RESISTANT membrane and sleep free of asbestos nightmares!

GIROSIL® RC is the ideal system. The specification calls for the sealing of bolts and minor cracks as standard before encapsulating the sheet with a moisture tolerant  coating to provide an enduring flexible, weatherproof solution.

Asbestos cement sheets are vapour permeable, often with a high moisture content. Unlike most coatings, GIROSIL® RC provides a fully breathing membrane that will not crack or blister.


Encapsulation with GIROSIL® RC means the sheets remain undisturbed, eliminating the considerable cost, disruption and stringent controls needed for the safe removal and disposal of the asbestos sheet.

Delaminating asbestos cement, corroded fixings and damage all contribute to a fragile leaking roof. GIROSIL® RC repels surface water to provide a fully breathing coating that allows the cement sheet to ‘sweat’ whilst keeping rainwater out.

PROBLEM: Loose Fixings

When minor cracks combine with loose and leaking hook bolts you’ve got yourself one seriously tricky repair job. Re-tightening corroded threads becomes impossible and therefore continuing leaks are inevitable.

These can be easily sealed with our GIROSIL® RC specification by cropping and encapsulating the bolt with GIROSIL® SE Sealant and GIROSIL® Basecoat onto to the asbestos roof sheet. It’s quick, easy and does the job better than anything else on the market.


Seal Damaged Fixings

The GIROSIL® RC system uses LAMINAR FLAKE technology, being unaffected by UV or extremes of weather and temperature and having exceptional adhesion to cleaned and prepared surfaces.

It cures to provide a tough elastic seal, effectively encapsulating the damaged area to restrict further deterioration, demonstrating for fixings, its proven track record in corrosion control.

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Asbestos Roof Fixings


The GIROSIL® RC system has been developed against a background of decades of experience of roof repair and is designed to be user friendly, being fully moisture tolerant.

GIROSIL® is unaffected by weathering conditions such as sunlight, ultra violet radiation, rain, snow and temperature extremes. The excellent weatherability and high temperature movement accommodation enables the system to perform after many years of exposure. So if you find yourself with Asbestos related problems and are in need of a solution to Asbestos Roof Repair due to corrosion or deterioration, then get in touch with us today.

Giromax Technology offers a specified product range that is installed by fully trained and experienced applicators, backed up with full technical support and assistance.

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