How To Vent My Attic

Your actual living space is sealed.

How to vent my attic. It s a standalone unit that s about two feet tall and 18 inches wide and has wheels for mobility. Don t avoid ventilating your attic for fear you re letting cold air into the house. Whole house fans powered attic fans. A portable air conditioner is the easiest solution for cooling your attic.

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. Calculate net free vent space building codes typically require 1 square foot of venting space for every 150 square feet of attic space. I can feel some water around the metal wrapping of the vent where there is an opening. Look at your eaves and roof.

If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the. Smaller on each side than the vent you re installing. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. Butt a cardboard template against the fascia and mark your soffit hole locations to begin soffit vent installation.

Here are four signs of an unventilated or under ventilated attic. Intake vents which are located at the down slope edge of the roof aka eave s and allow fresh air into the attic. Portable air conditioners do need to be vented to pump the hot air outside. If you don t see any attic vents on the roof or in the eaves you need to add some.

From the fascia to avoid waves and ripples in the soffit plywood. The venting space should be equally divided between intake. I have my fan vented out through the roof but near the inside of the roof in my attic the vent leaks a bit and condensation gets on the wood and a bit down in the insulation around where the vent goes out. If you widen existing holes widen them toward the fascia but no closer than 3 in.

Obviously more research is needed but here s what we do know. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Touch your ceiling on a warm sunny day. Hot air exhaust vents located at the peak of the roof allow hot air to escape.

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. A hot ceiling tells you that the attic is acting like a solar oven. Make the vent hole 1 2 in.