Difference Between Crawlspace Insulation And Attic Inuslation

Loose fill or batt insulation is typically installed in an attic.

Difference between crawlspace insulation and attic inuslation.

Sure there s insulation in your attic and crawlspace. See more on different types of insulation. Thermal insulation as well as how to make the right selection for your albany new york area home. However in subfreezing temperatures insulating the walls and sealing off the crawl space is most effective.

Or whole house fans. Due to the stack effect most of this leakage occurs at the top and bottom of your home your attic and crawlspace. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. R value is a measure of insulation s ability to resist heat traveling through it.

In the attic you have worry about heat gain and duct losses. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Foam board insulation is easy to use and is a great diy way to add some insulation. Then install a vapor moisture barrier between the exterior and interior crawl space surface before adding the insulation to keep inevitable moisture from seeping through.

If a crawl space isn t ventilated you ll only need to insulate the walls rather than the subfloor above. Due to the fact that the ground in crawl spaces is usually a few degrees cooler than the underside of your floor insulation condensation will begin to form on the underside of your floor joists and insulation. Convection conduction and radiation. The higher the r value the better the thermal performance of the insulation.

Thermal insulation for albany homes to understand how insulation works it s helpful to realize that heat flows in three ways. Insulation level are specified by r value. With new construction i would look for a way to have them in conditioned space. In warm or dry areas insulation can be limited to just the area between the floor joists.

If there were a way to eliminate the possibility of critters i would prefer the cooler location for ducts. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. To find out if you have enough attic insulation measure the thickness of the insulation. But there s probably nothing to prevent air from moving past plumbing air duct and electrical penetrations.

In a crawlspace you have to worry about critters and duct losses. Some types of thicker foam board insulation are available but they may need to be special ordered. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. Loose fill insulation is usually less expensive to install than batt insulation and provides better coverage when installed properly.