Attic Vent Holes

Adding attic vents is a simple matter of cutting holes and installing vents.

Attic vent holes.

That said air resistance and interference such as vent grates reduces the area of true ventilation. Intake vents located at the lowest part of the roof under the eaves allow cool. It is compatible with 3 or 4 ductwork and includes a 3 to 4 adapter for convenience. This cap features both a back draft damper and bird screen preventing outside air from entering the home and birds and small pests from entering duct work.

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. The rvk1a steel roof cap kit is an the rvk1a steel roof cap kit is an easy to install vent for ventilation fans bath rec room home gym etc. Hardware cloth is fairly rigid mesh with heavy gauge wire that is not easily damaged by animals. A roofer will from the attic mark a spot near the ridge of the roof he may first use nails from the attic to mark preferred spots between two rafters.

Square gable vent functions as a decorative accent to your home while providing maximum attic ventilation. It actually makes sense if you think about it. Bees often enter homes and structures through attic ventilation holes. The answer is to cover the holes with a type of metal mesh called hardware cloth.

Photos 1 6 show how it s done. This ply gem 14 in. This will keep out pests without restricting airflow through the vent holes. 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.

Buy hardware cloth with 1 8 inch or 1 4 inch openings. These vents are static vents that are placed over holes in the roof close to the roof ridge. It s one of the more common places bees enter in order to build their hives. Unlike box vents which are square off ridge vents are usually much longer and thinner.

Its two piece design is fully compatible with all siding profiles ply gem gable vents are designed to withstand the toughest weather and retain their beauty year after year. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Calculate or enter the square footage of the attic or area to be vented. In other words the entire vent opening doesn t count as vented space.

Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them. Once the swarm is inside the attic they can build a hive in a place that is up high usually deserted and can often go undetected by homeowners.