Insulating And Ventilating An Attic

Ventilation can be accomplished using various products and techniques.

Insulating and ventilating an attic.

Type and material of your insulation. Baffles are available at home centers. If your attic is well insulated the insulation might be plugging the spaces between rafters just above exterior walls. Building codes vary.

The insulation will resist heat transfer into the house. Square footage of your attic. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. 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. That means air can t flow from the soffit vents to the roof vents. The main factors that impact the cost are. Contractor or insulation installer s fee.

Most building codes require a ratio of 1 150 ventilation space to attic floor space. Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed. Keep the following things in mind as you start this project. Insulating and air sealing your attic is one of the best things you can do for your home.

The solution is to add baffles which allow air to flow past the insulation photo 9. Proper insulation and air sealing also keeps attics cold in winter by blocking the entry of heat and moist air from below. Ventilating your home prevents moisture odors and indoor air pollutants from building up.