For a gable vent you start by removing the siding and sheathing in your determined area with a circular saw avoiding any unnecessary contact to the gable studs.
How do you vent an attic.
Using a saw cut holes that are a tad smaller than the vent you re using.
Attic venting process mark the spacing of your soffit vents in between the rafters or joists.
Please see an enlargement in additional information below.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Secure the vents in place using the included hardware.
Enter square footage calculate or enter the square footage of the attic or area to be vented.
Raise the vent up to the soffit photo by merle henkenius next lay the strip vent down on a flat wood surface such as a plywood sheet or long 2 x 4 and drill 1 8 in dia.
Air chutes when combined with soffit vents and a ridge vent will help prevent problems with condensation and ice dams.
Clear any debris or insulation blocking the ventilation holes.
Space the holes 12 to 14 in.
Calculate net free vent space building codes typically require 1 square foot of venting space for every 150 square feet of attic space.
Fans and vents may be installed on the roof system that will draw the air out of the attic space and exhaust it to the exterior.
These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and.
Whole house fans powered attic fans.
To effectively ventilate your roof create a 1 in.
Simply secure the vent into place with screws and your vent is complete.
In addition insulation baffles must be installed at the point where the attic floor meets the roofline to prevent the attic insulation from migrating into the cavities and restricting the airflow from the soffit vents.
Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.
After creating a space for the vent line the hole with caulk and place the vent inside.
The venting space should be equally divided between intake.
Airspace from the soffit to the ridge by installing a continuous air chute in each rafter bay.
Normal vented air likes to enter the attic lower down near the bottom third of the attic and as it passes through it will exit higher up near the top third of the attic space.
Screw holes through both flanges.
Typically you would have a gable vent on each end of the attic.
Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge.
