Difference Between Crawlspace Insulation And Attic Inuslation

The ideal attic insulation r value is different than the ideal wall insulation r value.

Difference between crawlspace insulation and attic inuslation.

R value is a measure of insulation s ability to resist heat traveling through it. Foam board insulation is easy to use and is a great diy way to add some insulation. However when adding multiple layers of insulation you want to make sure that only one layer has faced and that the facing does not lie against the second insulation layer. Insulation ratings can be improved by adding more layers of insulation.

Adding insulation to your water heater can reduce standby heat losses by 25 to 45 percent. The table below shows what levels of insulation are cost effective for different climates and locations in the home. You can mix the type and material of insulation too. Insulation level are specified by r value.

Achieving greater r values in attics. Make sure your home is properly insulated in all these locations. Crawl spaces can be a major source of energy loss. If you find yourself running your furnace all winter long driving up high energy bills yet still feel cold on the ground floor of your home your crawl space could be the issue.

Insulate your attic outer walls and crawl space first as these areas have the most heat transfer. Look for insulating pre cut jackets or blankets with an insulating value of at least r 8. Insulate water heaters to prevent costly energy loss. Insulation facing is a moisture or vapor barrier so it only makes sense to use faced insulation in your crawl space.

The higher the r value the better the thermal performance of the insulation.