How To Vent Low Slope Attic Without Soffits

Hot air exhaust vents located at the peak of the roof allow hot air to escape.

How to vent low slope attic without soffits.

There are methods for doing rof cavity insulation with no ventilation. The venting drip edge seems to be the easiest and most common way to go. Check with the manufacturer of the roof vent to see if there is a need for more than one vent. Smart vent a special roof eaves vent product that provides a 3 4 opening about 6 above the top of the roof drip edge.

Another plastic venting product fits under. Remove the shingles in the area where the vent is to be installed. One great alternative to a soffit ventilation system is to install an intake vent right at the lower edge of the roof. Install special roof intake venting products that work at the lower edge of the roof decking underneath the first course of shingles.

The other strategy is cellulose insulation which is dense blocks airflow and contains salts that inhibit mold growth. Read this article to learn why. You mention exhaust vents shouldn t exceed intake vents in the roof for proper circulation. Drip edge vents hang out several inches past the edges of the roof allowing you to trim 1 inch from the top of the fascia to allow air into the attic.

In my opinion many of the innovative. And compact roof assemblies are clearly the only acceptable base for low slope roof assemblies. However with only two 1 ft x 2 ft gable roof vents i ll need an additional 7 sq ft of exhaust vents. Venting solutions for roofs with no overhang or soffit.

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. A ridge vent without a soffit vent just doesn t work. But if you don t have eaves or if you have shallow soffits like me ventilation can be a challenge. With old homes it can be very difficult to properly ventilate the attic for a variety of reasons.

Determine the shape of the hole needed for the vent. I need additional exhaust ventilation in my roof with the planned installation of a whole house fan in the attic of my home located in sf bay area. If i had an older home without soffits i would strongly consider just completely air sealing the attic and adding foam insulation totally removing the need for ventilation.