Install A Roof Dryer Vent
Trace the opening of the bottom section of a rooftop dryer vent on the inside of the roof with a pencil working from the attic.
Install a roof dryer vent. Position the assembly so that the opening faces toward the ground. Drill a 1 2 inch hole on the outline insert the blade of a. Dryer vent installation photo 6. Drill a pilot hole so you can see exactly where the vent will go outside photo 2.
Insert the vent and screw the cap to the house predrill screw holes. Push foam backer rod into deep gaps then caulk all around with acrylic caulk.
Source : pinterest.com