How To Roof A Ridge Vent

Vents evenly spaced underneath the roof provide intake.

How to roof a ridge vent.

Multiply it by 18 square inches the net free air per foot of ridge. Kind regards jonathan coxen. Roof ridge vents can reduce indoor air pollution levels. But few houses have continuous soffit and ridge vents.

Since exhaust and intake must be equal 450 square inches of total intake is required as well. The minimal roof gradient for a ridge vent is a ratio of 3 12. About two thirds of that time happens at home. Install the ridge vent shingle over style install the ridge vent aluminum.

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. I hope i answered your question adequately. There is a maximum slope of 16 12 for a roof ridge vent. The ridge vent on a wood shingled roof can be finished in one of two ways.

On either side of the ridge board. For most asphalt shingle ridge caps there are two. Then run underlayment and wood shingles to the edge of the sheathing before nailing a ridge vent over the opening. Install new field shingles.

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. To vent the ridge cut back sheathing at least 1 in. This gives you 450 square inches of total exhaust. Have a great day.

The average person spends about 90 of their time indoors each day. 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. 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. To calculate an example of exhaust and intake use 25 feet of roof ridge vent.

Remove the shingle caps. Cut the ventilation opening. This is the smoothest and most efficient system.