Roof Insulation Ventilation

It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow.

Roof insulation ventilation.

About attic ventilation natural attic ventilation. Good roof ventilation can do this but shingle color sun exposure and insulation are exponentially more important to overall energy efficiency than ventilation. The fresh air flows up between rafters to the ridge where a ridge vent roof vents or gable vents allow the air to exit. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow.

At first it may seem odd to add insulation for warmth and then purposely allow cold air to enter the attic through vents but this combination is the key to a durable and energy efficient home. Sure installing roof vents for older homes can reduce your hot air during the summer but there are probably more low risk cost effective ways to increase your home s energy. Grab a flashlight and inspect your attic during the winter. Air flows in through the soffit vents and out through the roof vents.

An attic with balanced ventilation has undereave or soffit vents which allow fresh air into the attic. These specialty vents do not affect the. When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic. Covering up the soffit vents with loose fill or batts which can happen if you stuff insulation along the eaves is a huge no no.

An important part of installing any system of ventilation into your roof system is to make sure that there is a point of entry and a point of exit for airflow. Vents come in various styles. It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters. If you see dampness or frost you need better roof ventilation and some attic vents.

Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof. For the same reason insulation shouldn t touch the roof s underside. If insulation is allowed to bunch against the inside slope of the roof between the rafters air will be blocked before. As a homeowner it is important that you review the soffit areas of the home for soffit vents.

For improved air circulation in the attic install the durovent 22 in. Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic.