R values vary based on the type thickness and density of the insulation material.
What type of insulation for attic.
Closed cell and open cell aka 2 pound and pound respectively.
Rolls and batts are produced of mineral wool and fiberglass.
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.
Loose fill or batt the common term for blanket insulation.
Modern technology of blanket insulation today is considered the best insulation for attic.
The most common type of insulation batts and blankets are great for diy projects.
Insulation is rated by its r value.
In particularly cold climates you might go up to r 60.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
What type of insulation is right for you.
They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.
Choose from two types.
Your home s r value score will guide you toward the type of insulation you need.
The third major type of insulation is spray foam.
Spray foam offers the best attic insulation performance available.
It consists of flexible fibers most commonly fiberglass.
Installing this type of insulation is an inexpensive and diy friendly project since the materials are designed to fit into the standard width between wall studs attic rafters and floor joists.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
In general an attic s r value should be between r 30 and r 49.
Let s take a look at the different types their costs effectiveness and accessibility as a diy project.
Spray foam attic insulation.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
For diy attic insulation you ve got two choices.
They usually come packaged in rolls and are easy to transport and carry.
R value measures how resistant types of insulation are to heat flow.
Both can be added to uninsulated attics or layered over existing material.
Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls.