The Principle Of Attic Ventilation

During warmer months ventilation helps keep attics cool.

The principle of attic ventilation.

Removes heat from the attic. Calculate your ventilation needs. Good ventilation allows the heat and moisture to escape. During colder months ventilation reduces moisture to help keep attics dry.

Of attic space you need 1 sq. It promotes a cool dry attic. By removing the hot air from the attic the home is able to stay cooler and the air conditioner runs less frequently. That cuts cooling costs and prolongs shingle life.

Proper ventilation uses intake and exhaust vents to help reduce energy costs by removing the hot air from the attic. 3 principles of proper attic ventilation. Proper attic ventilation will help increase home comfort help ensure the life and performance of roofing materials and may reduce utility bills. Intake vents located at the lowest part of the roof under the eaves allow cool.

It states that for every 150 sq. During warmer months ventilation helps keep attics cool. 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. Several purposes of an attic ventilation system are to provide added comfort to help protect against damage.

An effective attic ventilation system provides year round benefits. With that in mind here are three important principles to ensure proper attic ventilation. It helps minimize the impact of ice damming. It also helps prevent ice dams.

It allows outside air to flow naturally upward and out of attic. During colder months ventilation reduces moisture to help keep attics dry. There is a generally agreed upon formula that you can apply for balanced attic ventilation known as the 1 150 rule. Take the total square footage of your attic and divide it by 150.

If you understand the principles of attic ventilation you know an effective venting system provides year round benefits. Attics are ventilated by strategically placed roof vents which allow outdoor air to come in and let indoor air escape. It helps prevent moisture from becoming trapped in insulation structural wood shingles and roof deck. In the winter warm moist air seeps into the attic from the living space below.

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. Proper attic ventilation offers all these benefits. There is a formula for calculating your ventilation needs. In the summer good attic ventilation reduces heat buildup.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.