Your home s r value score will guide you toward the type of insulation you need.
Best type and brand of fiber glass attic insulation.
This makes insulation incredibly important.
Choose from two types.
In general an attic s r value should be between r 30 and r 49.
The third major type of insulation is spray foam.
Closed cell and open cell aka 2 pound and pound respectively.
Spray foam offers the best attic insulation performance available.
R values vary based on the type thickness and density of the insulation material.
Rolls and batts are produced of mineral wool and fiberglass.
Modern technology of blanket insulation today is considered the best insulation for attic.
In particularly cold climates you might go up to r 60.
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.
Spray foam attic insulation.
Insulation is rated by its r value.
Just as there are two types of blown insulation fiberglass and cellulose and two types of people those who divide everything into two groups and those who don t there are two types of spray foam open cell and closed cell.
Different insulation materials have unique strengths and weaknesses and some attics will be more suited for certain material than others.
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.
I heard this one for many years before i finally wrote about it.
R value measures how resistant types of insulation are to heat flow.
Both can be added to uninsulated attics or layered over existing material.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
The us department of energy has found that the average american home puts 44 percent of its total energy used towards cooling and heating.
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.
Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.
Blown fiberglass attic insulation loses half its r value because of convective loops.
Loose fill or batt the common term for blanket insulation.
