Sealing Flue Through Flat Roof

See how you can create a perfect seal around a pipe on a flat roof.

Sealing flue through flat roof. What typical detailing methods are used to seal flat roof penetrations. Banding is typically used to seal soil vent pipes on single ply roofs such as fdt rhepanol pib and involves wrapping an unreinforced membrane around the pipe to a minimum height of 150mm an approved sealant is then applied to the top of the membrane. Watch our demonstrator use an innovative pipe boot that can be cut to size and fixed to the epdm membrane covering the flat. Is it possible to have the flue of a combi boiler going through a flat roof.

Some installers advise against it becuase they say it is tricky and prone to leaking damaging the boiler in the process. Quickview price 24 95 inc vat 29 94. This flashing is suitable for sheet metal profiled roofs flat roofs boats and caravans. Clearline nu lead flashing the clearline nu lead based flashing is an environmentally friendly lead free flashing providing a reliable water tight seal to any twin wall flue through tiled and slate roofs.

This great video presentation shows you how to seal a pipe on a flat roof to avoid water ingress and completely waterproof a flat roofing installation. Masterflash epdm no 5. Quickview price 35 77. Comes with fixing kit.

Flashing kits flashing plates and weather collars in the range can be made of sheet metal plastic or composite materials and. This is normal but the most important thing to remember here is that it won t seal if you do this while it s raining especially on a flat roof. Boiler flue flashing products are typically used when installing a vertical flue kit through a flat or angled roof as it will provide a weather tight seal to the roof and stop any water leaking into the flue system. I am considering having one fitted but wanted to know whether it could be reliably done without a leak.

This flashing is used to provide a weatherproof seal where the flue passes through a tiled or slate roof.