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Professional Building Supplies£15.18Visit shop Cromar Grp Roofing External Fillet Corner
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The Cromar GRP Roofing External Fillet Corner is designed for professional roofers and DIY installers who require a reliable, high-quality solution for finishing external corners in GRP (Glass Reinforced Plastic) flat roofing systems. Its primary benefit is providing a seamless, watertight junction that integrates perfectly with other ProGRP components, though installers should note that it requires specific GRP-compatible adhesive and laminating techniques to ensure a permanent bond.
| Model Part Number | GA/C3EXT |
|---|---|
| Brand | Cromar |
It is specifically designed for the ProGRP range; compatibility with other brands cannot be guaranteed.
No, but you must ensure the surface is roughened with sandpaper and free of grease or dust.
The product is designed to be finished with a standard GRP topcoat, which is available in various colors.
You can easily trim the GRP component using a fine-tooth hacksaw or an angle grinder with a suitable cutting disc.
No, this specific component is engineered exclusively for external corners in roofing applications.
Check the decking edge for irregularities or high spots; sand down the substrate until the trim sits flat.
Ensure the surface of the trim has been lightly abraded with sandpaper and cleaned with acetone before applying the resin.
Before installation, ensure the roof substrate is clean, dry, and free of debris. Always use ProGRP-recommended adhesives to secure the fillet corner in place. Once positioned, the joint must be reinforced with chopped strand matting (CSM) and catalyzed resin to guarantee structural bonding. For care, inspect the corner during routine roof maintenance (at least once a year) for any signs of cracking or damage to the resin topcoat. If damage occurs, it can typically be repaired by sanding the area, cleaning with acetone, and reapplying a fresh layer of resin and topcoat.
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