How To Install Insulation In An Attic With Gable Vents

If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air.

How to install insulation in an attic with gable vents. Gable vents are intake vents. We ve rounded up all the most important know how about attic insulation costs products prep work and installation right here. Installing ventilation in an attic must be done properly for the ventilation to work efficiently. Rafter vents come in 4 foot lengths and 14 1 2 and 22 1 2 inch widths for different rafter spacings.

These specialty vents do not affect the. 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. Another common mistake occurs if your home s exhaust system inadvertently pulls hvac conditioned air into the attic. Keep reading for the details.

Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof. The soffit vents are now installed but you still need to make sure there s no insulation blocking the new vents. When installing ventilation avoid blocking vents with insulation which prevents airflow. Photos 1 6 show how it s done.

2 measure the distance between the two studs in the attic between which you. Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent. But before you cut any holes plan the locations of the attic vents. Add 1 4 inch to each dimension.

According to home advisor insulating your attic can cost between 1700 to. Measure the height and width of the interior frame of a gable vent with a tape measure. The air is then exhausted through gable. Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them.

The soffit vents allow convective air movement from the soffits of the residence to the ridge vent. But if you can t afford to shell out a few hundred bucks for this service never fear. How to insulate an attic ceiling with no soffit vent. Soffit vents sit underneath the eaves of the roof of a house to allow air circulation into the attic.

Ideal ventilation will allow the air in the attic to be completely exchanged every 6 minutes. Adding attic vents is a simple matter of cutting holes and installing vents. This requires both intake vents and exhaust vents. Remove any insulation from the new vent photo by merle henkenius.