The Principle Of Attic Ventilation

During warmer months ventilation helps keep attics cool.

The principle of attic ventilation. Attics are ventilated by strategically placed roof vents which allow outdoor air to come in and let indoor air escape. It also helps prevent ice dams. During colder months ventilation reduces moisture to help keep attics dry. During warmer months ventilation helps keep attics cool.

If you understand the principles of attic ventilation you know an effective venting system provides year round benefits. It helps minimize the impact of ice damming. With that in mind here are three important principles to ensure proper attic ventilation. Intake vents located at the lowest part of the roof under the eaves allow cool.

It also helps prevent ice dams. 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. Principles of attic ventilation. Attics need to breathe in all climates.

It states that for every 150 sq. 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. In the summer good attic ventilation reduces heat buildup.

An effective attic ventilation system provides year round benefits. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. By removing the hot air from the attic the home is able to stay cooler and the air conditioner runs less frequently. Proper attic ventilation offers all these benefits.

It allows outside air to flow naturally upward and out of attic. That cuts cooling costs and prolongs shingle life. 3 principles of proper attic ventilation. Take the total square footage of your attic and divide it by 150.

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. Proper ventilation uses intake and exhaust vents to help reduce energy costs by removing the hot air from the attic. It promotes a cool dry attic.

Calculate your ventilation needs. In the winter warm moist air seeps into the attic from the living space below. 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. There is a formula for calculating your ventilation needs.

Proper attic ventilation will help increase home comfort help ensure the life and performance of roofing materials and may reduce utility bills.