It s also a fairly good choice if you already have some insulation in the attic floor.
Best kind of insulation for attic.
Types of attic insulation.
Let s take a a closer look at each material to see which will be best for your attic s needs.
Choose from two types.
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.
The best places to install this kind of installation are new wall spaces unfinished attics or existing walls.
Modern technology of blanket insulation today is considered the best insulation for attic.
Loose fill insulation is available in either fiberglass or cellulose.
The blanket simply goes around the framing members.
Spray foam attic insulation.
Both can be added to uninsulated attics or layered over existing material.
As you can see from the image above there are some differences in the benefits these materials have to offer.
Loose fill fiberglass costs around 30 cents per cubic foot and it has an r value of 2 2 2 7 per inch.
They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.
In general an attic s r value should be between r 30 and r 49.
Rolls and batts are produced of mineral wool and fiberglass.
Your home s r value score will guide you toward the type of insulation you need.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Closed cell and open cell aka 2 pound and pound respectively.
The most common types of attic insulation are cellulose fiberglass and spray foam.
Insulation types include loose fill batts rolls foam board spray board and vapor barriers.
Foam is sprayed from the containers in specific places of the house.
The most common insulation materials are fiberglass cellulose and foam.
This kind of insulation is done with aid of spray holders.
The type of insulation you need depends on which type is currently installed and the required r value.
In particularly cold climates you might go up to r 60.
Loose fill or batt the common term for blanket insulation.
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.
For diy attic insulation you ve got two choices.
But if the job is more complicated than an open attic it s best to hire a pro.