How Much To Add Attic Ventilation

Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed.

How much to add attic ventilation.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Add a dab of cement to secure the shingles to the attic vent cover base. One reason for the lack of agreement over attic ventilation is the tremendous variation in climate across north america. The realtor said that they do not count a room as a bedroom unless there is a suitable heat source.

Ventilation can be accomplished using various products and techniques. 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. For instance attic ventilation is used widely in cold climates to evacuate the warm moist air that escapes from the living space below. Intake vents located at the lowest part of the roof under the eaves allow cool.

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. Rarely will you find a building practice that works everywhere. 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. 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. However the utility of attic ventilation fans is actually quite a controversial topic. The downside of attic ventilation fans. Without exception you should talk to a professional to determine what your home requires.

We just ran ductwork to our upstairs and it is so wonderful. Good insulation reduces fan effectiveness. Photos 1 6 show how it s done. 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. To keep air flowing your roof needs just the right amount of attic ventilation. Adding attic vents is a simple matter of cutting holes and installing vents.