Log Burner Flue Through Flat Roof

If the pitch of the roof is 38 degrees or greater the termination point of the flue or chimney will need to be 2300mm horizontally from the roof line and roofing material.

Log burner flue through flat roof. This is for masonry chimneys. To exit the room whether out through a wall or through a ceiling you must use twin wall flue pipe and then stay with twin wall flue pipe to the cowl. Degrees the height of flue or chimney stack will need to be at least 1800mm above the roof when not close to the ridge. I m putting a wood burner in my single storey extension.

If you don t fit your flue to the wall it will need to be at least 2 3 metres away from the house to adhere to building regulations. For a gas vent or type l vent this height must be 2 ft 0 61m or more. It must not be used to go through a wall or ceiling except directly into a brick stone chimney. The stovepipe connects the stove to a chimney pipe which extends through the roof.

A vertical line drawn along the up roof side of the chimney from the roof surface to the top of the chimney flue opening shall be at least 3 ft in height. I m installing a wood burner as part of this project and the flue has to go through the new flat roof. I have a flat roof currently being constructed the bottom layer of felt has been torched on to give me some basic waterproofing and the roofers are due back soon to finish the job. Lengths of twin wall are 250mm 500mm 1000mm same for steel vitreous pipe.

To get a good draw you need to raise the flue outlet away from the roof a surface like a roof creates wind eddies and slows the wind down thus reducing draw so by raising the flue outlet you bring the top of the flue up into unimpeded air flow. Whilst it s far easier to install the flue through the roof i m concerned. The roof cannot be tiled and will probably be a steel profile. The top of the flue opening should be 3 ft 0 92 m above any roof surface.

A single wall stovepipe requires more clearance than a double walled stovepipe. 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.