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.

Keep the following things in mind as you start this project. Type and material of your insulation. According to home advisor insulating your attic can cost between 1700 to 2100. In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq.

If your attic is well insulated the insulation might be plugging the spaces between rafters just above exterior walls. Ventilating your home prevents moisture odors and indoor air pollutants from building up. That means air can t flow from the soffit vents to the roof vents. 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. Building codes vary. Most building codes require a ratio of 1 150 ventilation space to attic floor space.

Proper insulation and air sealing also keeps attics cold in winter by blocking the entry of heat and moist air from below. Contractor or insulation installer s fee. Ventilation can be accomplished using various products and techniques. The main factors that impact the cost are.

Consider installing continuous ventilation as a part of 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.