How To Fit A Flue Through A Roof

The roof flashing may be the hardest part to installing a chimney pipe for a wood burning stove.

How to fit a flue through a roof.

A sedum roof can look very nice indeed and is relatively easy to install. How to flash a chimney pipe on a corrugated steel roof. For an internal twin wall system rising up through the roof surface you must consider all four of the following building regulation requirements. Use a flexi metal connector to take up any misalignment.

Position the vent pipe up to the bottom of the roof. 450 mm 18 in. Putting a flue pipe or chimney through a sedum roof. With the pipe in a vertical position trace around the pipe using a pencil.

Nobody wants a leaky roof or the damage it could cause to yo. Minimum clearance from combustible material. These work better on smaller round chimneys and may be ideal for a stove chimney in a metal roof. Use reducer adaptors for varing pipe diameters.

Sedum roofs are becoming ever more popular and many customers have come to us wanting to put a twin wall insulated flue pipe through their sedum roof so that they can install a stove. The flue must rise high enough to create a 2 3m horizontal clearance between the top of the last length of pipe and the surface of the roof. A different type of flashing is a chimney pipe boot. In this case the flue goes upwards and then out through the roof.

Slide the rubber boot over the. The minimum clearance may be reduced by 50 percent to 225 mm 9 in if suitable shielding is installed either on the pipe or on the combustible surface. The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof. Apply a generous bead of roofing sealant around the base of the pipe with the caulking.

Instead of having to cut flashing materials yourself you can buy a fitting boot for your chimney pipe. Go into your attic. With a horizontal flue the pipe travels straight through the wall behind the boiler. This is relatively easily done.

Google roof pipe flashings for products and install info. Trim the flashing in the center of the rubber boot with a roofing knife so it fits snugly around the pipe.