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How to Fibreglass a Pond: GRP Pond Lining Guide

How to Fibreglass a Pond: GRP Pond Lining Guide

A fibreglass, or GRP, pond lining creates a continuous rigid waterproof shell over a prepared structure. It is particularly useful for formal ponds, raised koi ponds and water features, but...

How to Fibreglass a Pond: GRP Pond Lining Guide

A fibreglass, or GRP, pond lining creates a continuous rigid waterproof shell over a prepared structure. It is particularly useful for formal ponds, raised koi ponds and water features, but...

ALT: Commercial industrial roof gutter inspected before a GRP lining specification

Commercial & Industrial GRP Gutter Lining: When Is It Suitable?

By Paul Reynolds | Last technically reviewed: October 2026 A leak from an industrial gutter can track along roof sheets, insulation or beams before appearing above stock, machinery or an...

Commercial & Industrial GRP Gutter Lining: When Is It Suitable?

By Paul Reynolds | Last technically reviewed: October 2026 A leak from an industrial gutter can track along roof sheets, insulation or beams before appearing above stock, machinery or an...

Chopped strand mat roll with GRP resin and laminating roller

What Is Chopped Strand Mat? 225g, 300g, 450g & 600g Explained

Chopped strand mat, usually shortened to CSM, is the glass-fibre reinforcement used in many GRP laminates. Once it is properly saturated with compatible laminating resin and consolidated, the two materials cure...

What Is Chopped Strand Mat? 225g, 300g, 450g & 600g Explained

Chopped strand mat, usually shortened to CSM, is the glass-fibre reinforcement used in many GRP laminates. Once it is properly saturated with compatible laminating resin and consolidated, the two materials cure...

Warm flat roof construction on a modern UK house extension, showing roofers installing rigid insulation boards over a continuous air and vapour control layer (AVCL) - Apex Fibreglass

Warm Roof vs Cold Roof: Vapour Barriers and U-Values Explained

Getting the insulation and moisture control right is just as important as choosing the waterproofing for a flat roof. If the build-up is poorly designed or the vapour-control layer is...

Warm Roof vs Cold Roof: Vapour Barriers and U-Values Explained

Getting the insulation and moisture control right is just as important as choosing the waterproofing for a flat roof. If the build-up is poorly designed or the vapour-control layer is...

Grey GRP roof on a brick extension after rain, with edge trim and gutter visible.

How GRP Roofing Handles British Weather

How well does a GRP roof cope with British weather? Here’s what rain, frost and summer sunshine mean for your roof, and how to look after it.

How GRP Roofing Handles British Weather

How well does a GRP roof cope with British weather? Here’s what rain, frost and summer sunshine mean for your roof, and how to look after it.

Charcoal EPDM rubber flat roof on a brick house extension with dark perimeter trims. 

EPDM vs GRP: Which Is Better for Roofing in Winter?

EPDM can save time on a simple winter roof, but the adhesive, deck and overnight forecast decide whether work can go ahead. Here’s how it compares with GRP.

EPDM vs GRP: Which Is Better for Roofing in Winter?

EPDM can save time on a simple winter roof, but the adhesive, deck and overnight forecast decide whether work can go ahead. Here’s how it compares with GRP.

450g vs 600g fibreglass roof matting comparison

450g or 600g Fibreglass Matting for Your Roof

Unsure which fibreglass matting your roof needs? Compare single and double layers, work out resin quantities and understand what tape and tissue can repair.

450g or 600g Fibreglass Matting for Your Roof

Unsure which fibreglass matting your roof needs? Compare single and double layers, work out resin quantities and understand what tape and tissue can repair.

A roof lantern and neat perimeter illustrate how GRP can fit a contemporary extension.

Why Architects Choose GRP for Contemporary Flat Roof Designs

Contemporary flat roofs may look simple, but the details behind them matter. We look at where GRP works particularly well, from rooflights and parapets to extensions, garages and garden rooms.

Why Architects Choose GRP for Contemporary Flat Roof Designs

Contemporary flat roofs may look simple, but the details behind them matter. We look at where GRP works particularly well, from rooflights and parapets to extensions, garages and garden rooms.

A rubber roof after rainfall

How EPDM Roofing Handles British Weather

Considering a rubber roof, or worried about one after bad weather? We explain how EPDM handles rain, snow and wind, and what deserves a closer look.

How EPDM Roofing Handles British Weather

Considering a rubber roof, or worried about one after bad weather? We explain how EPDM handles rain, snow and wind, and what deserves a closer look.