How To Install Stove Exhaust Vent Through Cold Climate Roof

Best practice is to wrap the entire duct with r 3 to r 8 insulation but if nothing else you should at least wrap the 6 ft.

How to install stove exhaust vent through cold climate roof.

Start in the attic and drill a hole through the roof in the desired vent location. Some passivhaus builders avoid the use of a range hood exhaust fan. Rise up into the eve vents of the house and back into the attic fig. Keep the vent low and run the insulation over the duct.

From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. Of duct just inside the termination point which is where condensation is most likely to happen. Instead they install a recirculating fan that includes a charcoal filter. Use a regular wall hood if you can go out through the vertical wall in the gable end of the house.

Frost accumulation air sealing drip on outside reduced wall drafts. This approach works best if there is an exhaust grille in the kitchen ceiling far from the range connected to the exhaust port of an hrv. On the outside you will see the wind baffle that prevents snow from blowing in. Leave the drill bit sticking through the roof so you can find the hole.

Use a proper roof top exhaust hood if you must go through the roof. More frost cold drafts air sealing figure 1. Yes you can vent a range hood through the roof using a 6 single wall pipe. You can buy the proper flashing to install it on a flat roof and a roof cap that has screen around it to prevent insects from entering.

Try to keep it close to the fan location.