Forced Roof Vents

I mentioned five excellent roof vents in this article but my favorite has to be the lippert components 389381 white roof vent because of the patented 360 siphon design it has adopted.

Forced roof vents. A hot ceiling tells you that the attic is acting like a solar oven. 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. Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all. Look at your eaves and roof.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Powered fan forced roof vents recommended fan forced roof vents are by far the best and most highly recommended choice for the primary vent in your campervan ventilation project. These vents are installed in the soffit the enclosed portion under the roof overhang and permit air to flow up under the roof and into the attic. Here are four signs of an unventilated or under ventilated attic.

Hot air exhaust vents located at the peak of the roof allow hot air to escape. If your roof has a slope then it should have a ridge vent at the peak of the roof to naturally allow hot air to flow out of the attic. Touch your ceiling on a warm sunny day. Butterfly vents are a great option for a wall vent.

Many homes do not have air tight barriers between the attic and the living space. In hurricane prone zones with frequent high wind events vented soffit collapse can pressurize a building which can cause windows to blow out and the roof to be blown off. If you don t see any attic vents on the roof or in the eaves you need to add some. They range in style from 6 inch round stainless steel vent covers that are placed in the soffit between each rafter to continuous vents that run the entire length of the soffit.

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic. Gable vents may circulate air through only a small percentage of your attic.

These adjustable louvered vents should be installed with a cover to keep out the rain. Static roof line vents are effective for ventilation but generally aren t recommended due to issues with leaks. Always have a balanced ventilation system. In no case should the amount of exhaust ventilation exceed the amount of intake ventilation.

Similarly in coastal environments or in regions with lots of rain and wind moisture can be forced into the vents and into the roof assembly.