Insulating And Ventilating An Attic

Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed.

Insulating and ventilating an attic.

Of vent for every 300 sq. Building codes vary. The main factors that impact the cost are. Baffles are available at home centers.

According to home advisor insulating your attic can cost between 1700 to 2100. Proper insulation and air sealing also keeps attics cold in winter by blocking the entry of heat and moist air from below. That means air can t flow from the soffit vents to the roof vents. The insulation will resist heat transfer into the house.

Contractor or insulation installer s fee. Keep the following things in mind as you start this project. 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. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.

Most building codes require a ratio of 1 150 ventilation space to attic floor space. The solution is to add baffles which allow air to flow past the insulation photo 9. Consider installing continuous ventilation as a part of this project. Ventilation can be accomplished using various products and techniques.

Insulating and air sealing your attic is one of the best things you can do for your home. In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq. Square footage of your attic.