The Principle Of Attic Ventilation

It helps prevent moisture from becoming trapped in insulation structural wood shingles and roof deck.

The principle of attic ventilation.

During colder months ventilation reduces moisture to help keep attics dry. Proper ventilation uses intake and exhaust vents to help reduce energy costs by removing the hot air from the attic. During warmer months ventilation helps keep attics cool. It also helps prevent ice dams.

Calculate your ventilation needs. If you understand the principles of attic ventilation you know an effective venting system provides year round benefits. During colder months ventilation reduces moisture to help keep attics dry. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

Thus you first have to calculate the square footage of the attic if you don t already know it and to do it you need to measure three values the length width and height of the space. It promotes a cool dry attic. Attics are ventilated by strategically placed roof vents which allow outdoor air to come in and let indoor air escape. During warmer months ventilation helps keep attics cool.

Intake vents located at the lowest part of the roof under the eaves allow cool. It allows outside air to flow naturally upward and out of attic. An effective attic ventilation system provides year round benefits. That cuts cooling costs and prolongs shingle life.

Proper attic ventilation offers all these benefits. By removing the hot air from the attic the home is able to stay cooler and the air conditioner runs less frequently. There is a formula for calculating your ventilation needs. In the winter warm moist air seeps into the attic from the living space below.

Take the total square footage of your attic and divide it by 150. Removes heat from the attic. 3 principles of proper attic ventilation. In cold climates the primary purpose of attic or roof ventilation is to maintain a cold roof temperature to control ice dams created by melting snow and to vent moisture that moves from the conditioned space to the attic ventilation acts to bypass the vapour barrier created by most roof membranes.

It also helps prevent ice dams. Good ventilation allows the heat and moisture to escape. Several purposes of an attic ventilation system are to provide added comfort to help protect against damage. With that in mind here are three important principles to ensure proper attic ventilation.

It helps minimize the impact of ice damming. Of attic space you need 1 sq. Attics need to breathe in all climates. In the summer good attic ventilation reduces heat buildup.

It states that for every 150 sq.