Attic Insulation Levels

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.

Attic insulation levels.

The depth varies quite a bit because we have attic trusses and a floor in the attic. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Pull down stair or ladder. So we have between r36 and r56 in the attic.

Add the right kind of insulation. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Insulation levels are specified by r value. Level up insulation is a professional insulation installation company in beverly hills and we offer a wide range of services including insulation installation replacement and removal as well as crawl space and attic insulation.

Insulation level are specified by r value. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Bulky materials resist conductive and to a lesser degree convective heat flow in a building cavity.

Affix rigid foam insulation to the attic side of the hatch or door. The floor limits the cellulose to a depth of 12 inches in some places. What type of attic insulation would you recommend. What thickness of the recommended insulation will i need to achieve the required u value 0 16w m2k for ceiling level insulation 0 20w m2k for rafter level insulation.

The insulation levels of an attic or of any part of a house are understood through the r value that is the value with which the insulating material is resistant to heat flow. If i were to build another home i d invest in even better insulation. Inspecting your attic insulation. R value is a measure of insulation s ability to resist heat traveling through it.

R value is a measure of insulation s ability to resist heat flow. Cellulose insulation has an r value of approximately 3 to 3 5 per inch. Why are other types less suitable. If i need storage space in my attic where is the best place.

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. The higher the r value the better the thermal performance of the insulation. In general to optimally isolate an attic on average an r value of the insulation is required ranging from r 50 to r 60. The table below shows what levels of insulation are cost effective for different climates and locations in the home.

The higher the r value the better the thermal performance of the insulation. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.