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.
Similar products
Make re-roofing your shed, gazebo, or garden building simple with Onduline Universal Screws. Designed for fixing Onduline corrugated roofing sheets, these screws include a built-in washer for a secure, watertight seal and a neat finish. They go straight into timber ...Read more
Onduline Classic is a lightweight, high-performance bitumen-corrugated roof sheet that offers reliable waterproofing for garden sheds, carports, outhouses or small buildings. The sheet is easy to carry and install, yet tough enough to withstand harsh weather. With UV-resistant pigmentation and ...Read more
This Onduvilla Shed Roof Kit is a ready-to-use pack designed to give small garden buildings (sheds, outbuildings, garages) a complete, weather-resistant roof with tiles, fixings and roof components included. With lightweight bitumen-corrugated roof tiles, ridge and verge pieces plus fixings, ...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