Attic Baffles Requirements

Surprisingly even the most well insulated attic space may still require the assistance of attic baffles to provide the additional air circulation.

Attic baffles requirements. You can situate the baffles where the circulation is mainly required. 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. 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. Measure your attic s square footage.

During the summer soffit and gable vents draw. How important is using baffles in attic insulation. 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. An attic needs to be insulated to keep your house warm in the winter and cool in the summer.

For batts or rolls calculate the number based on the width and length of the product you re using. 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. 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.

When you have insulation without ventilation though humidity and moisture can build up. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. That airflow is intended to churn the stale air in. Ah the bad are easily spotted as we labeled them.

Bob using the formula above you would need 8 8 square feet or 1 267 square inches of vent space in your attic. Proper air circulation in the attic is all about preventing moisture buildup. For that reason you should check your baffles yearly for damage replacing any damaged baffles as you find them. Fasten top portion of baffle in place to allow for a minimum 1 inch space between baffle and roof deck.

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. Ben ericksondecember 27 2007 at 4 52 pm. For loose fill read labels. Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect.

The second major issue is the large gap between the baffle ridge and the insulation. 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.