Fitting A Flue Through A Flat Roof

By chris on tour2002 wed apr 23 2008 2 25 pm.

Fitting a flue through a flat roof.

The structure of the flat roof is wood combustible and the covering is single ply pvc. 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. 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.

However depending on your type of roof a flat roof for example your engineer may also get a roofing contractor to check everything is properly sealed. Once the hole is marked use your sawzall and cut the hole through the roof. Fitting a flue through a roof. 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.

Firstly you ll want to know your chosen engineer is fully competent and experienced at fitting flues through roofs. Take your adjustable roof flashing and center that on the screw you ran through the roof deck. Instead of having to cut flashing materials yourself you can buy a fitting boot for your chimney pipe. However if a vertical flue is badly fitted then yes you could have a leak on your hands.

5 posts page 1 of 1. 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. A different type of flashing is a chimney pipe boot.