Rooflight Repair


This is a high performance, high build, single component moisture curing aliphatic polyurethane coating that cures to provide a clear, tough membrane principally for the re-coating and sealing of aged and weathered grp rooflights.

Fully cured, it provides a tough clear elastomeric coating with crack bridging capabilities that can also be used on a wide range of common building components such as concrete, glass, grp and ceramic tiling. Giromax rooflight repair is based on a unique blend of polyurethane resins to produce a coating, which provides a tough durable finish with a high degree of impact, erosion and weather resistant properties. Simple and easy to use straight from the tin it is applied by roller or brush.


  • Primer-less adhesion to most common building products

  • Designed to recoat aged translucent rooflight systems, including GRP, PVC and Polycarbonate

  • Fast application without disruption to internal activities

  • Provides ideal refurbishment solution for difficult to replace translucent sheets on asbestos cement roofs

Instructions for Use

This product should only be applied to substrates which are structurally sound and that have been prepared to a clean, dry and stable base.

Application Details

The product is designed for application as received to clean, dry, structurally sound substrates. Additional dilution is not necessary and should not be undertaken. All surfaces must be clean, dry and free from surface contamination. De-grease if required prior to application. Remove any fungus or mould growth. Most surfaces do not require priming however positive adhesion should be checked on non-standard surfaces.

Do not thin. Brushes should be soft nylon or bristle. If using roller technique use a medium pile synthetic type. Do not apply if rain is likely to occur before the coating has achieved a “touch dry” state.