Roof Flashing & Cowls
Frequently Asked Questions
Protect structures from leaks with roof flashing. Apply to high-risk areas to redirect water flow, keeping your home dry during rainfall. Our range includes plastic, rubber and lead roof flashing from tried and tested brands like Calder.
You’ll also find quality roof cowls that improve chimney drafts and prevent backflow. From traditional terracotta to modern grey, shop a vast range of sizes and finishes to find a cowl that perfectly fits your chimney.
When constructing or repairing a roof, visit our roofing products page. You’ll find all the products you need to build a sturdy structure, from the primer to the shingles. For all other construction needs, browse our building supplies range. Find all the necessary tools, whether insulating the home or building a shed.
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Onduline Slim Verge (D100) provides a tidy, watertight finish along the edges of a roof, sealing where corrugated bitumen sheets meet the verge. It’s lightweight, slim-profile, and easy to fit making it ideal for garden sheds, garages, outbuildings, or small ...Read more
Onduline Red Bitumen Verge provides a smart, weather-tight solution for finishing the point where roof ridge meets verge. Designed to seal the apex securely, it helps protect buildings from wind, rain, and water ingress, ensuring reliable performance in exposed areas. ...Read more
Onduline Easyline is a compact, lightweight bitumen-corrugated roof sheet designed for small-scale DIY roofing, ideal for garden sheds, wood shelters, or other outbuildings. Thanks to its smaller dimensions and manageable weight, it’s easy to transport, cut, and install, even for ...Read more
This Flat Rubber Roof Kit from ClassicBond is easy to install, looks great and has a life expectancy of up to 50 years. EPDM (ethylene propylene diene monomer) rubber membranes will not crack, blister or peel. This kit includes; 1.2mm ...Read more