Insulation Recommendations For Attic

R values of common types of insulation.

Insulation recommendations for attic.

Insulation level are specified by r value. Unlike fiberglass insulation. The recommended r value for attic insulation in ontario is between r 50 and r 60. Batt and roll insulation works well between joist and stud spaces or if you have a wide open space or a crawlspace.

The ideal attic insulation r value is different than the ideal wall insulation r value. The two distinct types of attic insulation are loose fill material also commonly known as blown in insulation and batting. Contractor or insulation installer s fee. The r value of the insulation for every inch of thickness depends on the type of insulation.

Bulky materials resist conductive and to a lesser degree convective heat flow in a building cavity. Square footage of your attic. R value is a measure of insulation s ability to resist heat traveling through it. Achieving greater r values in attics.

The higher the r value the better the thermal performance of the insulation. See install batt and roll insulation for details. Rigid foam boards trap air or another gas to resist conductive heat flow. There are two main types of insulation.

The main factors that impact the cost are. So it s time to pay close attention to what s happening up there. Type and material of your insulation. Loose fill cellulose insulation is composed of pulverized paper and fabric material treated with a flame retardant.

See the department of energy s doe ranges for recommended levels of insulation below. Batt and roll insulation and loose fill sometimes known as blown in insulation. According to home advisor insulating your attic can cost between 1700 to 2100. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.

Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. Insulation materials run the gamut from bulky fiber materials such as fiberglass rock and slag wool cellulose and natural fibers to rigid foam boards to sleek foils. Recommended home insulation r values. You can mix the type and material of insulation too.

Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. Make sure your home is properly insulated in all these locations. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer. Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation.