Allow Air To Flow Into Attic

The narrow soffit slits allow air to flow freely into your attic.

Allow air to flow into attic.

The soffit vents allow convective air movement from the soffits of the residence to the ridge vent. Proper insulation and air sealing also keeps attics cold in winter by blocking the entry of heat and moist air from below. In addition insulation baffles must be installed at the point where the attic floor meets the roofline to prevent the attic insulation from migrating into the cavities and restricting the airflow from the soffit vents. If your attic is well insulated the insulation might be plugging the spaces between rafters just above exterior walls.

The solution is to add baffles which allow air to flow past the insulation photo 9. In the summer natural air flow in a well vented attic moves super heated air out of the attic protecting roof shingles and removing moisture. They are a proven and cost effective solution for improving air intake in many homes. Baffles are available at home centers.

If the soffit of your home isn t perforated to allow air movement either replace it with perforated soffit or install round air vents under the eaves to allow air flow. Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic. Make sure there is air flow from the eaves. The airflow pushes the hot air out which is exactly what you need to keep your attic cool during the summer.

Unvented attic assemblies unvented attics rely on an air impermeable insulation installed to the roof deck s underside i e. Attic ceiling to stop airborne moisture from reaching a cold surface and condensing inside the building envelope in this design insulation effectively separates the interior and exterior spaces while slowing down moisture flow so the dewpoint is not achieved within. Baffles or rafter vents are an ideal choice for improving intake venting. That means air can t flow from the soffit vents to the roof vents.

Hot air exhaust vents located at the peak of the roof allow hot air to escape. These are exhaust vents that are installed on the ridge of your roof i e. Ridge vents are available in a series of pieces or as one long piece.