How To Ventilate An Attic Without Soffit Vents

Another plastic venting product fits under.

How to ventilate an attic without soffit vents.

Construct a hidden roof intake vent at the top of the building wall by removing the wall top trim or top siding board cutting away any building sheathing or blocking at the wall top nailing 1 spacer blocks 16 on center nailing a new spaced out wall top trim board along the roof eaves and screening the opening against insects. 1 being out of balance. 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. Focus on the other ventilation you have in the attic.

Use eye brow vents that are on the top of the sloping roof surface near the soffit eave area. 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. 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.

Install low gable vents located above the top level of the attic ceiling insulation. 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. 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. Weird attic layouts may be a part of it.

Rafter vents should be placed in your attic ceiling in between the rafters at the point where your attic ceiling meets your attic floor.