Look for insulating pre cut jackets or blankets with an insulating value of at least r 8.
Difference between crawlspace insulation and attic inuslation.
Make sure your home is properly insulated in all these locations.
Achieving greater r values in attics.
Insulation ratings can be improved by adding more layers of insulation.
Crawl spaces can be a major source of energy loss.
Insulation facing is a moisture or vapor barrier so it only makes sense to use faced insulation in your crawl space.
You can mix the type and material of insulation too.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
The ideal attic insulation r value is different than the ideal wall insulation r value.
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.
The higher the r value the better the thermal performance of the insulation.
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.
Insulation level are specified by r value.
Adding insulation to your water heater can reduce standby heat losses by 25 to 45 percent.
Insulate your attic outer walls and crawl space first as these areas have the most heat transfer.
A crawl space isn t a livable part of the home but insulation is still important to keep the heat in.
Foam board insulation is easy to use and is a great diy way to add some insulation.