How Do I Ventilate My Attic

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.

How do i ventilate my attic. To properly ventilate an attic two types of vents are needed. Vents come in various styles. Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. However the utility of attic ventilation fans is actually quite a controversial topic.

Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. If you see dampness or frost you need better roof ventilation and some attic vents. For the best results place roof ventilation near the roof s peak and soffit vents in the eaves. To avoid rotting wood clumping insulation and mold your attic needs to be properly ventilated.

However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the. How to properly ventilate your attic. Intake vents which are located at the down slope edge of the roof aka eaves and allow fresh air into the attic. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space.

Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed. Soffit vents may leave air trapped at the top of your attic. This is an informative post thank you for sharing. February 18 2016 at 8 36 pm ventilation is important to help keep moisture out.

The downside of attic ventilation fans. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Grab a flashlight and inspect your attic during the winter. How to check attic ventilation.

Air flows in through the soffit vents and out through the roof vents. Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof. Exhaust vents which are located near or on the ridge line of the roof and allow air to leave the attic. My concern is can an attic vent flow be to large and let water in and does spray insulation keep attic protected by leak in.

Ventilation can be accomplished using various products and techniques. How attic ventilation works. Moreover if you have asphalt shingles on the roof attic.