How To Install A Roof Ridge Vent

This video shows clips of a reroofing job which included ridge vent installation.

How to install a roof ridge vent. Exact rates depend on the type size and number of units you choose to install. Position the aluminum ridge vent along the reference line. Nail the section down by driving 2 inch roofing nails through the holes provided. Tools you will need for roofing from amazon bostitch coil nailer https amzn to 2u1v8e2 shingle remover https amzn to 2fzu5wf roof snake https amzn to 2.

Installing a roof vent costs between 300 and 650 on average including labor and materials. To calculate an example of exhaust and intake use 25 feet of roof ridge vent. Insert an end plug into a section of ridge venting and align the end with the end of the roof. Multiply it by 18 square inches the net free air per foot of ridge.

Since exhaust and intake must be equal 450 square inches of total intake is required as well. Using a circular saw with a carbide tip blade one of the roofers plunges the saw into the ridge at the ends and then follows the chalk line. This gives you 450 square inches of total exhaust. 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.

To begin the ridge vent installation they measure down 3 inches from the top of the ridge and snap a line to cut the opening for the ridge vent. Add any connectors and end caps that came with your ridge vent system to ensure the vent is watertight.