Improper installation can damage attic framing promote mold.
Double insulation in attic.
So it s time to pay close attention to what s happening up there.
In really cold climates a third layer of insulation either un faced r 30 or blown in cellulose can be installed on top of the first two layers.
You can mix the type and material of insulation too.
If you don t provide air space this product provides almost no insulating value.
A tip for doubling up on attic insulation.
Both can be added to uninsulated attics or layered over existing material.
The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit.
Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter.
An r 1 1 is provided from the product itself for the reflective double bubble material.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
The ideal attic insulation r value is different than the ideal wall insulation r value.
In attic spaces an additional layer of un faced insulation usually r 30 can be installed on top of the insulation that is between the ceiling joists for an added layer of protection.
I mentioned above that radiant barriers have two excellent applications in homes and those are in the attic and in windows the two places where the most radiant heat gain occurs in a building.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Loose fill or batt the common term for blanket insulation.
For diy attic insulation you ve got two choices.
Since ducts require either r 6 or r 8 insulation depending on location building inspectors should start failing this application every time they see it.
Make sure your home is properly insulated in all these locations.
Insulation ratings can be improved by adding more layers of insulation.