THE FORCE/1
Insulation T erms and V alues
COMMON INSULATION VALUES
Material
Air Space
Cellulose loose fill
Celotex
Concrete block
Fiberglass batt
Fiberglass batt
Fiberglass loose fill
Rockwool batt
Rockwool batt
Rockwool loose fill
Plywood
Polyurethane board
Vermiculite
Thickness
1"
1"
1"
8", hollow
3
⁄
"
1
2
8"
1"
⁄
"
3
4
6 - 7
⁄
"
1
2
1"
⁄
"
1
2
1"
1"
50
R-Value
1.01
3.70
3.03
1.11
11.0
19.0
2.2
11.0
22.0
2.60
.62
6.25
2.13