Insulating And Ventilating An Attic

The solution is to add baffles which allow air to flow past the insulation photo 9.

Insulating and ventilating an attic. Ventilation can be accomplished using various products and techniques. Type and material of your insulation. Baffles are available at home centers. Building codes vary.

According to home advisor insulating your attic can cost between 1700 to 2100. Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed. If your attic is well insulated the insulation might be plugging the spaces between rafters just above exterior walls. Most building codes require a ratio of 1 150 ventilation space to attic floor space.

Contractor or insulation installer s fee. Insulating and air sealing your attic is one of the best things you can do for your home. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. Square footage of your attic.

In the summer natural air flow in a well vented attic moves super heated air out of the attic protecting roof shingles and removing moisture. Consider installing continuous ventilation as a part of this project. Ventilating your home prevents moisture odors and indoor air pollutants from building up. Of vent for every 300 sq.

Keep the following things in mind as you start this project. Proper insulation and air sealing also keeps attics cold in winter by blocking the entry of heat and moist air from below. In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq.