Difference Between Crawlspace Insulation And Attic Inuslation

Due to the stack effect most of this leakage occurs at the top and bottom of your home your attic and crawlspace.

Difference between crawlspace insulation and attic inuslation.

Achieving greater r values in attics the higher the r value the better the thermal performance of the 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. However in subfreezing temperatures insulating the walls and sealing off the crawl space is most effective. Modern houses built on crawl spaces place insulation usually fiberglass batt insulation in between the floor joists.

If there were a way to eliminate the possibility of critters i would prefer the cooler location for ducts. Some types of thicker foam board insulation are available but they may need to be special ordered. In the attic you have worry about heat gain and duct losses. Thermal insulation for albany homes to understand how insulation works it s helpful to realize that heat flows in three ways.

Or whole house fans. But there s probably nothing to prevent air from moving past plumbing air duct and electrical penetrations. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. R value is a measure of insulation s ability to resist heat traveling through it.

Loose fill or batt insulation is typically installed in an attic. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Learn the difference between radiant barrier vs. Convection conduction and radiation.

In warm or dry areas insulation can be limited to just the area between the floor joists. With new construction i would look for a way to have them in conditioned space. 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. Loose fill insulation is usually less expensive to install than batt insulation and provides better coverage when installed properly.

Sure there s insulation in your attic and crawlspace. Insulation level are specified by r value. If a crawl space isn t ventilated you ll only need to insulate the walls rather than the subfloor above. See more on different types of insulation.

Foam board insulation is easy to use and is a great diy way to add some insulation. To find out if you have enough attic insulation measure the thickness of the insulation. Or attic staircase hatches. The higher the r value the better the thermal performance of the insulation.