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Double Layer 450gsm GRP Fibreglass Roofing Kits Built for Balconies & Walkways

Available from 5m up to 50m, our Double Layer Balcony & Walkway Fibreglass Roofing Kits are engineered for surfaces that demand the highest level of strength, waterproofing, and durability. Whether you’re waterproofing a balcony, terrace, flat roof walkway, or any area subject to regular foot traffic, this is the kit built for the job.

We’ve been supplying and installing GRP fibreglass systems for many years we know what works, and this double layer system is our go-to recommendation for balcony and walkway applications where performance cannot be compromised.

Why Double Layer?

A double layer application using 450gsm fibreglass matting provides significantly enhanced tensile strength and waterproofing integrity compared to a single layer. It’s the professional standard for balconies, walkways, and any surface exposed to regular movement, thermal cycling, and the elements.

• Superior strength and crack resistance
• Excellent waterproofing no joints, no seams, no leaks
• Handles foot traffic and structural movement with ease
• Long-lasting protection 50+ year lifespan when correctly applied
• Can be applied from as low as 5C suitable all year round

Optional tool kits are available select from the drop-down above if required.

Key Details

• Full installation instructions provided
• Kits available from 5m to 50m larger sizes available upon request
• Catalyst provided at 2% Standard Cure
• Suitable for DIY and professional installers

Don’t forget your trims edging trims ordered alongside a full roofing kit are available at just 11 inc VAT. Click here to select your trims.