Attic Without Ventilation

They call this a venting drip edge.

Attic without ventilation.

One great alternative to a soffit ventilation system is to install an intake vent right at the lower edge of the roof. Without adequate ventilation moisture rises with the hot air and forms condensation on the inside of the roof deck. If i had an older home without soffits i would do everything possible to make sure that my attic is properly ventilated. But if you ve got an unfinished attic giving it proper insulation is one of the simplest ways to keep a lid on your heating bill this season.

However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. 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. 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. The venting drip edge seems to be the easiest and most common way to go.

Attic ventilation keeps your house cooler in summer and it prevents moisture from building up in winter and ruining your roof framing and insulation. This will use more energy and make your air conditioner work harder which will increase your summer utility bill. It s a diy project you can tackle in a weekend and the savings you ll get add up every year says toh general contractor tom silva. Looking to learn more about home maintenance.

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. Typically you would have a gable vent on each end of the attic. 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. On the principle that hot air rises the accumulated heat and moisture would rise to the attic and out the roof vents.

How to vent an attic with no eaves. For an attic without soffit vents you may have the option to use gable vents instead.