Fitting A Flue Through A Flat Roof

Once the hole is marked use your sawzall and cut the hole through the roof.

Fitting a flue through a flat roof.

I thought of trying to extend the pipe so it clears the roof but the flue design does not lend itself to this and as it would have to protrude by about 2 feet it would look an untidy mess and will solve one neighbourly gripe and. The structure of the flat roof is wood combustible and the covering is single ply pvc. I would need to pass a twin wall flue for the stove through a flat roof that covers a single storey section of the house. These work better on smaller round chimneys and may be ideal for a stove chimney in a metal roof.

Take your adjustable roof flashing and center that on the screw you ran through the roof deck. Fitting a flue through a roof. By chris on tour2002 wed apr 23 2008 2 25 pm. However if a vertical flue is badly fitted then yes you could have a leak on your hands.

Stovesonline can design plan specify supply and support fitting i wide range of lead nu lead alu based or epdm flashing to enable leak proof and watertight joins between your flue system chimney and roof. An easy way to mark the hole you need to cut is by using the flashing as a stencil and spray painting the inside on the roof shingles. Most installers or roofing contractors will use a slate piece or a metal or lead piece that fits onto a flat or pitched roof with a gromit where the flue pipe goes through. Especially if it s not sealed properly.

Firstly you ll want to know your chosen engineer is fully competent and experienced at fitting flues through roofs. Instead of having to cut flashing materials yourself you can buy a fitting boot for your chimney pipe. 5 posts page 1 of 1.