How Much To Add Attic Ventilation

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.

How much to add attic ventilation.

Attic ventilation keeps the air moving and stops mold from growing but too much ventilation can be just as bad as having none. Watch to find out how much ventilation your roof needs to keep air flowing and stop mold before it starts. One reason for the lack of agreement over attic ventilation is the tremendous variation in climate across north america. We just ran ductwork to our upstairs and it is so wonderful.

Adding a vent to existing ductwork is a diy job. Ventilation can be accomplished using various products and techniques. Adding attic vents is a simple matter of cutting holes and installing vents. Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool.

The reason we did it was because we wanted to sell our house. For instance attic ventilation is used widely in cold climates to evacuate the warm moist air that escapes from the living space below. So how much ventilation should you have. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.

Without exception you should talk to a professional to determine what your home requires. Intake vents located at the lowest part of the roof under the eaves allow cool. The downside of attic ventilation fans. Good insulation reduces fan effectiveness.

As the ventilation helps moderate the temperatures in the attic this may also help moderate the temperature in the rest of the home it helps prevent moisture buildup in your attic which during colder months can help prevent condensation issues that can affect the materials in the attic space especially insulation. 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. Rarely will you find a building practice that works everywhere.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. To keep air flowing your roof needs just the right amount of attic ventilation. 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.