How To Ventilate An Attic Without Soffit Vents

Imagine there s a screened window on one side of your attic with a big box fan on the roof facing outward.

How to ventilate an attic without soffit vents.

1 being out of balance. If the attic ventilation system is not a balanced combination of intake vents installed in the soffit under eave or at the roof s bottom edge and exhaust vents installed at or near the roof s peak the attic ventilation system will not be efficient and effective. An attic s intake vents are most commonly installed directly in the soffit either as individual vents spaced every few feet or as one continuous perforated soffit running the entire length of. Rafter vents should be placed in your attic ceiling in between the rafters at the point where your attic ceiling meets your attic floor.

Weird attic layouts may be a part of it. Active ventilation is what it sounds like there s something that creates a push pull effect to actively draw the air in and actively push the air out. Once they are in place you can then place the batts or blankets or blow insulation right out to the very edge of the attic floor. 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.

Another plastic venting product fits under. How to vent an attic without soffit vents. With old homes it can be very difficult to properly ventilate the attic for a variety of reasons. Install low gable vents located above the top level of the attic ceiling insulation.

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.