How Much To Add Attic Ventilation

The downside of attic ventilation fans.

How much to add attic ventilation.

Rarely will you find a building practice that works everywhere. Adding attic vents is a simple matter of cutting holes and installing vents. Ventilation can be accomplished using various products and techniques. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

Attic fan installation costs an average of 593 most homeowners can expect to pay between 369 and 876 depending on the quality of the unit you choose location and add ons the project can run as little as 200 or as much as 1 300. Add a dab of cement to secure the shingles to the attic vent cover base. For instance attic ventilation is used widely in cold climates to evacuate the warm moist air that escapes from the living space below. Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation.

Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. Adding a vent to existing ductwork is a diy job. One reason for the lack of agreement over attic ventilation is the tremendous variation in climate across north america. Good insulation reduces fan effectiveness.

Attic ventilation keeps the air moving and stops mold from growing but too much ventilation can be just as bad as having none. So how much ventilation should you have. Intake vents located at the lowest part of the roof under the eaves allow cool. Photos 1 6 show how it s done.

Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed. We just ran ductwork to our upstairs and it is so wonderful. Watch to find out how much ventilation your roof needs to keep air flowing and stop mold before it starts. Without exception you should talk to a professional to determine what your home requires.

The reason we did it was because we wanted to sell our house. The realtor said that they do not count a room as a bedroom unless there is a suitable heat source. However the utility of attic ventilation fans is actually quite a controversial topic.