Resistivity To Heat Loss Of Common Building Mateirals

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4"
Concrete or Stone
.32
6"
Concrete or Stone
.48
8"
Concrete or Stone
.64
12"
Concrete or Stone
.96
4"
Concrete Block
.70
8"
Concret Block
1.10
12"
Concrete Block
1.25
4"
Common Brick
.82
4"
Face Brick
.45
4"
Structural Clay Tile
1.10
8"
Structural Clay Tile
1.90
12"
Structural Clay Tile
3.00
1"
Stucco
.20
15lb.
Building Paper
.06
3/8"
Sheet Rock
.33
1/2"
Sand Plaster
.15
1/2"
Insulation Plaster
.75
1/2"
Fiberboard Ceiling Tile
1.20
1/2"
Fiberboard Sheathing
1.45
3/4"
Fiberboard Sheathing
2.18
 
Roll Roofing
.15
 
Asphalt Shingles
.16
 
Wood Shingles
.86
 
Tile or Slate
.08
1/2"
Plywood
.65
5/8"
Plywood
.80
3/4"
Plywood
.95
3/4"
Softwood Sheathing or Siding
 
 
Composition Floor Covering
.08
1"
Mineral Batt Insulation
3.50
2"
Mineral Batt Insulation
7.00
4'
Mineral Batt Insulation
14.00
2"
Glass Fiber Insulation
7.00
4"
Glass Fiber Insulation
14.00
1"
Loose Fill Insulation
3.00
 
Single Thickness Glass
.88
 
Glassweld Insulating Glass
1.89
 
Single Glass With Strom Window
1.66
 
Metal Edge Insulating Glass
1.85
4"
Glass Block
2.13
1 3/8"
Wood Door
1.92
 
Same With Storm Door
3.12
1 3/4"
Wood Door
1.82
 
Same With Storm Door
2.94