How To Install Roof Vent On Shingle Roof

Cover the entire flange with shingles to integrate it better into the roof.

How to install roof vent on shingle roof.

Install asphalt shingle caps over the vent using the nails recommended by the manufacturer. Install underlayment and caulk vent stacks with roof sealant to make your plumbing vents leak proof. Press new shingles onto the caulk and use nails at the top of each shingle to fully secure them to the roof. To calculate an example of exhaust and intake use 25 feet of roof ridge vent.

Install step and dormer flashing. First head up to your attic and determine where you want to install your roof vent. Attach the other side of the vent to the opposite side of the ridge to fully secure the vent. To install the vent the roofer slips the flange the metal lip of the vent under shingles at the upper part of the hole and rests the flange on top of the shingles at the down slope part of the hole.

Install your starter row of shingles at the bottom of your roof making sure to follow the manufacturer s instructions to install shingles. Multiply it by 18 square inches the net free air per foot of ridge. What you ll need to install a roof vent. Position the ridge cap shingles over the ridge vent.

Trim the shingles away from the ridge vent hole. Glue down shingles to cover the bottom of the vent. Adhere the joint where the cut edges of the shingles meet the dome with roofing tar. If the plumbing vent is close to the peak of the roof lap the shingles over the peak of the roof.

Using the example above three round vents would be needed 432 144 3 vents or nine square vents 432 50 8 64 or 9 vents. Next position your ladder against your home and. Place the shingle over ridge vent along the reference line and nail the ridge vent to the decking along that side as directed by the manufacturer. Trim off excess shingles on roof edges.

Attach he ridge cap shingles with two nails each. Vents evenly spaced underneath the roof provide intake.