The Principle Of Attic Ventilation

You can also contact your local municipality to check on building code in your area.

The principle of attic ventilation. Proper attic ventilation will help increase home comfort help ensure the life and performance of roofing materials and may reduce utility bills. 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. Throughout the balance of this digest the terms attic and roof will and can be used interchangeably. Without proper ventilation everyday household activities can wreak havoc on a roofing system.

In the winter warm moist air seeps into the attic from the living space below. Participants will be equipped to evaluate and discern the types of ventilation products and how to design and specify optimal. After completing this course you will. That cuts cooling costs and prolongs shingle life.

However in order to optimize the benefits of attic ventilation it s important to follow proper principles and procedures. One last thought attic ventilation is not there to get rid of heat it is there to get rid of excess moisture accumulating from the home. Insulation at least r 38 or more is there for heating and. This in turn helps you reduce moisture in the attic and keep your home cooler during the summer months.

It can do both. Understand the specific benefits of attic ventilation for all four seasons of the year. Ridge vent must me installed per the manufactures instructions. This yields a total area of 1 104 square feet.

Good ventilation allows the heat and moisture to escape. Best ventilation is open soffit venting to a open vented ridge vent. Principles of attic ventilation 0bsp03 course description. Home exterior principles of attic ventilation.

Attics need to breathe in all climates. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Principles of attic ventilation a comprehensive course for understanding and planning attic ventilation systems. Participants will be provided an examination of the year round benefits of attic ventilation.

If there s a vapor barrier beneath the insulation it can be 1 300. Intake vents located at the lowest part of the roof under the eaves allow cool. That keeps your attic dry and reduces ice dams. Let s look at the following example.

Most building codes require a ratio of 1 150 ventilation space to attic floor space. The general rule of thumb is to have at least one square foot of vent space for every 150 square feet of attic area. In the summer good attic ventilation reduces heat buildup.