How To Roof A Ridge Vent

The minimal roof gradient for a ridge vent is a ratio of 3 12.

How to roof a ridge vent. The average person spends about 90 of their time indoors each day. About two thirds of that time happens at home. Have a great day. Install new field shingles.

There are some homes where the indoor air quality. I hope i answered your question adequately. Roof ridge vents can reduce indoor air pollution levels. 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.

Since exhaust and intake must be equal 450 square inches of total intake is required as well. Vents evenly spaced underneath the roof provide intake. Multiply it by 18 square inches the net free air per foot of ridge. There is a maximum slope of 16 12 for a roof ridge vent.

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. This gives you 450 square inches of total exhaust. Install the ridge vent shingle over style install the ridge vent aluminum. Start by removing the nails holding the ridge cap shingles in place.

The only problem with this lifestyle is that the quality of your indoor air can be up to 5 times worse than the outside air. Kind regards jonathan coxen. Remove the shingle caps. Then run underlayment and wood shingles to the edge of the sheathing before nailing a ridge vent over the opening.

To vent the ridge cut back sheathing at least 1 in. On either side of the ridge board. Ideally air circulates under the roof by being drawn up through a continuous soffit vent through the attic space and then out the ridge through a continuous ridge vent. 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.

To calculate an example of exhaust and intake use 25 feet of roof ridge vent. But few houses have continuous soffit and ridge vents. For most asphalt shingle ridge caps there are two.