Attic Baffles Requirements

First for the good is how they have the baffle running up past the insulation by at least 16 which helps prevent almost any possibilities of wind washing from occurring.

Attic baffles requirements.

That airflow is intended to churn the stale air in. During the summer soffit and gable vents draw. Each bag lists the required depths for a range of r values and the number of bags needed to cover 1 000 square feet at those depths. A first off a fiberglass plug is basically worthless and does not meet the air sealing requirements in the 2009 iecc.

For loose fill read labels. Ben ericksondecember 27 2007 at 4 52 pm. Bob using the formula above you would need 8 8 square feet or 1 267 square inches of vent space in your attic. Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect.

This can cause all sorts of problems from mold to decay. You can situate the baffles where the circulation is mainly required. Since each 4 diameter hole would have an area of 12 56 square inches 3 14 x r you would divide 1 267 by 12 56 to come up with 101 vents. Rafter vents or insulation baffles install in any rafter space.

Cut side fin and fold baffle at the measured mark to allow for correct insulation height. Ventilation openings having a least dimension larger than 1 4 inch 6 4 mm shall be provided with corrosion resistant wire cloth screening hardware cloth perforated vinyl or similar material with openings having a least dimension of 1 16 inch 1 6 mm minimum and 1 4 inch 6 4 mm maximum. For that reason you should check your baffles yearly for damage replacing any damaged baffles as you find them. Ah the bad are easily spotted as we labeled them.

For batts or rolls calculate the number based on the width and length of the product you re using. Surprisingly even the most well insulated attic space may still require the assistance of attic baffles to provide the additional air circulation. An attic needs to be insulated to keep your house warm in the winter and cool in the summer. Basic functions of baffles baffles are chutes that when installed properly can provide a channel for air to flow from your exterior soffit vents up into your attic space.

How important is using baffles in attic insulation. When you have insulation without ventilation though humidity and moisture can build up. For all eaves with vents fasten bottom of baffle in place to allow insulation to completely cover the top plate. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

Measure your attic s square footage. 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.