Loose fill or batt the common term for blanket insulation.
Old forms of attic insulation.
These fibers became the base of fiberglass insulation which became popular in the 1940s.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
For diy attic insulation you ve got two choices.
Both can be added to uninsulated attics or layered over existing material.
If you check with the north american insulation manufacturers association they ll assure you that fiberglass or mineral wool is definitely your best choice for attic insulation.
3 main old attic insulation types.
Older types of insulation include loose fill or batt fiberglass which can be pink yellow or white.
Asbestos insulation found in buildings above.
The most common insulation materials are fiberglass cellulose and foam.
This is a lightweight shiny material that resembles mica flakes.
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.
If your attic or wall insulation is in batt or blanket form whether it s fiberglass cellulose or another material you.
A common form of asbestos insulation found in older buildings is an asbestos based corrugated paper insulating wrap used on pipes.
Spray foam attic insulation.
Insulation types include loose fill batts rolls foam board spray board and vapor barriers.
If the insulation is wool like and gray it may be loose fill rockwool.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Made of newspaper cardboard straw sawdust or cotton cellulose was actually one of the earliest types of insulation.
Believe it or not there are situations in a home when you should remove the old attic insulation before adding more over the existing and in this short video.
It absorbs water and it is fire resistant.
How to identify dangerous asbestos insulation.
The mineral was popular.
Another form of insulation that became popular is cellulose.
Loose fill fiberglass attic insulation still experiences convection but not nearly as much as old fiberglass used to.
See details about actual building insulation made of or contaminated with asbestos discussed at asbestos building insulation.