Attic Vent Holes

This will keep out pests without restricting airflow through the vent holes.

Attic vent holes. 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. It is compatible with 3 or 4 ductwork and includes a 3 to 4 adapter for convenience. It s one of the more common places bees enter in order to build their hives. Adding attic vents is a simple matter of cutting holes and installing vents.

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. 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. 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. These vents are static vents that are placed over holes in the roof close to the roof ridge.

Photos 1 6 show how it s done. Bees often enter homes and structures through attic ventilation holes. Calculate or enter the square footage of the attic or area to be vented. Unlike box vents which are square off ridge vents are usually much longer and thinner.

In other words the entire vent opening doesn t count as vented space. Hardware cloth is fairly rigid mesh with heavy gauge wire that is not easily damaged by animals. But before you cut any holes plan the locations of the attic vents. Intake vents located at the lowest part of the roof under the eaves allow cool.

From the roof the roofer will cut away shingles and underlayment and use a saber saw to cut a hole the same size as the diameter of the vent. Many people mistake off ridge vents for box vents and while they are very similar in their functions they do have some differences. It actually makes sense if you think about it. The answer is to cover the holes with a type of metal mesh called hardware cloth.

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. This ply gem 14 in. That said air resistance and interference such as vent grates reduces the area of true ventilation. Buy hardware cloth with 1 8 inch or 1 4 inch openings.

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