Best Way To Baffle Air In Attic

Rafter baffles are sheets of plastic foam or cardboard that fit between the rafters in your attic to prevent moisture accumulation and add insulation to your home.

Best way to baffle air in attic.

The preferred way is for the baffles to begin above the ventilated soffit and extend all the way to the small attic above the second floor ceiling. Baffles should fit snugly between your rafters and extend from just over the vent at the wall plate up the rafter. Hot air exhaust vents located at the peak of the roof allow hot air to escape. Wind can blow up through soffit vents disturbing insulation and moving it out of place.

To make it easy to eyeball how level the material is as you blow it in screw depth guides to joists throughout the space. Be sure to wear long sleeves goggles and a dust mask. The deeper the insulation the longer the baffles have to be. Some of this water vapor rises into the attic.

How important is using baffles in attic insulation. Rafter baffles should be installed before dry wall or insulation. You will need a baffle for each space between the rafters. During the summer soffit.

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. Fasten blocking around the hatch or door to allow the material to be installed around this area without escaping. In the summertime the outdoor air temperature as well as the air inside the attic is warmer than it is in the winter and warmer air can hold more moisture than cold air can. If you are finishing the entire attic space place the baffle directly adjacent to the soffit vent so air vents directly into the tray of the baffle and is captured against its bottom.

You can situate the baffles where the circulation is mainly required. Fit each one snuggly in the bay with the bottom starting where the ceiling joist meets the roof rafter. The main function of an attic baffle is to draw the air in from outside your home and allowing it to circulate around your attic. Make sure the fill s depth is uniform across the attic.

Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. The faster the wind moves over the baffle the greater the pressure it creates. Install air chutes in each rafter space to keep the air path clear between the rafters and the roof sheathing. It s best to separate the.

In a traditional cape cod house with 4 foot kneewalls there are two ways to install ventilation baffles.