Are Attic Vents Necessary

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

Are attic vents necessary. 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. Calculate or enter the square footage of the attic or area to be vented. Good insulation reduces fan effectiveness. However the utility of attic ventilation fans is actually quite a controversial topic.

Editorial adviser mike guertin answers this question regarding adequate roof venting. Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. You receive the ventilation necessary for the home without creating a higher risk of damage. The downside of attic ventilation fans.

Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed. It allows air to move out of the attic naturally. See the benefits of attic ventilation a new roof is more than just shingles.

Attic ventilation strategies except in some specific cases building codes and shingle warranties require new roofs to be vented. 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. Some vents are necessary but you don t want to needlessly increase the number of roof penetrations. If you re building a house with an unconditioned vented attic the necessary attic ventilation details are fairly.

Intake vents located at the lowest part of the roof under the eaves allow cool.