How To Put On A Roof Vent

Vents evenly spaced underneath the roof provide intake.

How to put on a roof vent. 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. How to install a roof vent method 1 of 3. Go into your attic. Adding static exhaust vents.

Mark the outline of the roof cuts that will be needed then use a skill saw to cut the outlined space. Drive a nail through your attic to mark where you want your vent. First head up to your attic and determine where you want to install your roof vent. When determining the placement of the roof vents measure the vent housing and mark off the space on the roof.

Check around the edges of your attic for any wiring. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. To calculate an example of exhaust and intake use 25 feet of roof ridge vent. See below for a shopping list and tools subscribe.

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. Next position your ladder against your home and. Fasten the vent to the roof decking and rafters or trusses by nailing through the flange on both sides of the vent using the nails and nail spacing recommended by the manufacturer. Apply a layer of sealant to the edges of the hole then.

Multiply it by 18 square inches the net free air per foot of ridge. Add any connectors and end caps that came with your ridge vent system to ensure the vent is watertight.