Are Attic Vents Necessary

Editorial adviser mike guertin answers this question regarding adequate roof venting.

Are attic vents necessary.

Ventilation can be accomplished using various products and techniques. If you re building a house with an unconditioned vented attic the necessary attic ventilation details are fairly. Good insulation reduces fan effectiveness. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.

You receive the ventilation necessary for the home without creating a higher risk of damage. However the utility of attic ventilation fans is actually quite a controversial topic. Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. See the benefits of attic ventilation a new roof is more than just shingles. The downside of attic ventilation fans. 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.

Attic ventilation strategies except in some specific cases building codes and shingle warranties require new roofs to be vented. Some vents are necessary but you don t want to needlessly increase the number of roof penetrations. More than leaks these seams can cause blowouts during a hurricane or allow sparks from a wildfire to enter your home and set it ablaze. Intake vents located at the lowest part of the roof under the eaves allow cool.

The shape size and location of roof ridge vents make it impossible for rodents to access your house.