Insulation types include loose fill batts rolls foam board spray board and vapor barriers.
Old forms of attic insulation.
The type of insulation you need depends on which type is currently installed and the required r value.
If your attic or wall insulation is in batt or blanket form whether it s fiberglass cellulose or another material you.
The most common insulation materials are fiberglass cellulose and foam.
The mineral was popular.
How to identify dangerous asbestos insulation.
These fibers became the base of fiberglass insulation which became popular in the 1940s.
See details about actual building insulation made of or contaminated with asbestos discussed at asbestos building insulation.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Another form of insulation that became popular is cellulose.
If the insulation is wool like and gray it may be loose fill rockwool.
This is a lightweight shiny material that resembles mica flakes.
The 1950s 1970s.
Asbestos insulation found in buildings above.
Loose fill or batt the common term for blanket insulation.
Loose fill fiberglass attic insulation still experiences convection but not nearly as much as old fiberglass used to.
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.
Made of newspaper cardboard straw sawdust or cotton cellulose was actually one of the earliest types of insulation.
3 main old attic insulation types.
Spray foam attic insulation.
A common form of asbestos insulation found in older buildings is an asbestos based corrugated paper insulating wrap used on pipes.
While this type is often still used older insulation may be discolored or torn and is therefore less effective.
For diy attic insulation you ve got two choices.
Both can be added to uninsulated attics or layered over existing material.
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.