Venting Attic With No Soffit Access

If you are looking for a diy install roof ventilation is a risky job.

Venting attic with no soffit access.

When hot air rises up through the soffit venting it then keeps rising all the way up to the ridge vent. Avoiding bends in the hose. If you have an attic with no soffit vents but 2 unobstructed gable vents then you will probably be ok on ventilation. Now that we have that out of the way let s get to the heart of the matter venting a house with little to no eaves or soffits.

How to vent a bathroom fan through soffit. Normal vented air likes to enter the attic lower down near the bottom third of the attic and as it passes through it will exit higher up near the top third of the attic space. Even for the second story bathroom you can access the attic to vent the moisture outside. The soffit vents are now installed but you still need to make sure there s no insulation blocking the new vents.

Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them. In an attic without soffit vents you can add insulation in the corners and the wedges between the slope of the roof and the floor of the attic which serves as the ceiling for the room below. The total venting space should equal 1 150 of the floor space. A soffit exhaust vent cover is installed in a straight line as much as possible from the bathroom exhaust fan.

When the attic becomes part of the home to be heated and cooled open wall gable vents and roof vents are no longer feasible but the underside of the roof the sheathing and rafters can still get. This creates a natural suction phenomenon where the ridge vent is sucking air out of the soffit vents creating a natural ventilation cycle. The main idea of the ridge vent is to act together with soffit venting to properly ventilate the attic. If your roof peak runs parallel to the street put them on the backside where they ll be less prominent.

Unless your roofing system has insulation on the roofing deck and is designed without ventilation your furnace should not be heating your attic. Poor insulation is usually the culprit although if you enter the attic on sunny winter day your attic space can be warmed by the sun more than your furnace. The most common way to add ventilation to an attic is by installing air intakes in the soffits and putting an outlet at the gable of the house.