Installing A Vent Through Roof

Go into your attic.

Installing a vent through roof.

First head up to your attic and determine where you want to install your roof vent. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. Unlike the vents shown above left the dryerjack affects airflow by less than 01 water column inches of pressure. Slide the vent under the shingles so they cover the top half of the vent flange.

The lower half of the flange sits on top of the shingles. The vent opening must be far enough above the roof and away from doors and windows to prevent the sewer gases from drifting into the house. Seal between the top of the vent flange and at the bottom of the roofing shingles as well. Be sure to like and subscribe in order to help me bring you more helpful videos filled with tips and tricks i ve learned over the years.

Locate the drill bit. The holes are not just for the range hood but also drill one or two more holes for the electric wires too. You should start by drilling a hole through the roof and make sure it goes through where you want your vent to go. Next position your ladder against your home and climb up to your roof.

The code requires a 10 foot horizontal distance from any. Apply a bead of asphalt roof cement on the bottom of the vent. Then flash it with the shingles that you removed prior on both sides and above the vent. Install the vent and seal the underside of the vent flange with roofing grade sealant caulk.

Plenty more videos t. Considering that back pressure higher than 6 wci is generally recognized as inefficient you can see that venting through the roof with non dryer specific vents is immediately problematic. The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof. To vent a range hood through a wall or roof you have to open up a hole in the ceiling using a drill machine.

Installing a range hood vent through the ceiling is also called venting vertically and this is the method we recommend. See below for a shopping list and tools subscribe. Nail the lower corners with roofing nails and tar the heads. Drill a hole upward through the middle of the area you desire and leave the drill bit sticking up through the roof so you can find it from the outside.