First head up to your attic and determine where you want to install your roof vent.
How to install a roof vent.
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.
Installation first requires a wood frame made of 2x4s installed from the attic between two studs.
To install a roof vent start by installing air vents along the edges of your attic which will allow the moisture to escape from your home.
Rather than being installed on the roof gable vents are installed on the exterior side wall of the home near the roof ridge.
This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent.
First off i m not a professional roofer this is for the diy jack of all trades guys and gals out there.
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Your roofer will build this frame just a little larger than size of the vent leaving 1 8 inch of extra room on each side.
Locate the drill bit.