Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.
Best type and brand of fiber glass attic insulation.
Loose fill or batt the common term for blanket insulation.
In general an attic s r value should be between r 30 and r 49.
Different insulation materials have unique strengths and weaknesses and some attics will be more suited for certain material than others.
Insulation is rated by its r value.
In particularly cold climates you might go up to r 60.
They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.
If your attic floors and or walls do not have the proper level of insulation a big chunk of the costly cooled or heated air meant for the inside of your home may be making its way outside.
Types of attic insulation material though r value is a the higher the better measurement the insulation material with the highest r value isn t necessarily the best choice for your house.
Your home s r value score will guide you toward the type of insulation you need.
Blown fiberglass attic insulation loses half its r value because of convective loops.
For diy attic insulation you ve got two choices.
Among commonly used types of insulation there are mineral wool or fiberglass rolls and batts rigid fiberglass board loose fill materials cellulose mineral wool etc.
The us department of energy has found that the average american home puts 44 percent of its total energy used towards cooling and heating.
Rolls and batts are produced of mineral wool and fiberglass.
Spray foam attic insulation.
Closed cell and open cell aka 2 pound and pound respectively.
Both can be added to uninsulated attics or layered over existing material.
Modern technology of blanket insulation today is considered the best insulation for attic.
I heard this one for many years before i finally wrote about it.
R values vary based on the type thickness and density of the insulation material.
Choose from two types.
This makes insulation incredibly important.
R value measures how resistant types of insulation are to heat flow.
Yes there was a study from the early 1990s that showed blown fiberglass in attics could lose 50 of its r value when the attic temperature dropped.
Spray foam offers the best attic insulation performance available.