Material |
R-Value Per Inch |
Typical Thickness |
Typical R-Value |
Plywood |
1.10 |
3/4" |
0.825 |
OSB |
1.40 |
3/4" |
1.050 |
Softwood |
1.10 |
3/4" |
0.825 |
Sheet Vinyl |
1.60 |
1/8" |
0.200 |
Vinyl Composition Tile |
1.60 |
1/8" |
0.200 |
Linoleum |
1.60 |
1/4" |
0.400 |
Linoleum |
1.60 |
1/8" |
0.200 |
Dense Rubber Flooring |
1.30 |
21/64" |
0.250 |
Recycled Rubber Flooring |
2.20 |
1/2" |
1.100 |
Cork |
3.00 |
1 1/2" |
1.125 |
Cork/MDF/Laminate |
2.35 |
1/2" |
1.175 |
Brick |
2.25 |
1 1/2" |
3.375 |
Marble |
0.80 |
1/2" |
0.400 |
Ceramic Tile |
1.00 |
1/4" |
0.250 |
Thinset Mortar |
0.40 |
1/8" |
0.050 |
MDF/Plastic Laminate |
1.00 |
1/2" |
0.500 |
Laminate Floor Pad |
1.92 |
5/32" |
0.300 |
Engineered Wood |
1.00 |
1/4" |
0.250 |
Engineered Wood |
1.00 |
3/8" |
0.375 |
Engineered Wood |
1.00 |
5/8" |
0.625 |
Engineered Wood |
1.00 |
3/4" |
0.750 |
Engineered Wood Flooring Pad |
1.60 |
1/8" |
0.200 |
Engineered Bamboo |
0.96 |
3/4" |
0.720 |
Oak |
0.85 |
3/4" |
0.638 |
Ash |
1.00 |
3/4" |
0.750 |
Maple |
1.00 |
3/4" |
0.750 |
Pine |
1.30 |
3/4" |
0.975 |
Fir |
1.20 |
3/4" |
0.900 |
Carpet Pad/Slab Rubber 33lb |
1.28 |
1/4" |
0.320 |
Carpet Pad/Slab Rubber 33lb |
1.28 |
3/8" |
0.480 |
Carpet Pad/Slab Rubber 33lb |
1.28 |
1/2" |
0.640 |
Carpet Pad/Waffle Rubber 25lb |
2.48 |
1/4" |
0.620 |
Carpet Pad/Waffle Rubber 25lb |
2.48 |
1/4" |
1.240 |
Carpet Pad/Frothed Polyurethane 16lb |
3.53 |
1/8" |
0.53 |
Carpet Pad/Frothed Polyurethane 12lb |
3.48 |
1/4" |
0.87 |
Carpet Pad/Frothed Polyurethane 10lb |
3.22 |
3/8" |
1.20 |
Carpet Pad/Frothed Polyurethane 10lb |
3.22 |
1/2" |
1.61 |
Hair Jute |
3.88 |
1/2" |
1.940 |
Hair Jute |
3.88 |
21/64" |
1.250 |
Synthetic Fiber Pad 20 oz |
1.8 |
15/64" |
0.421 |
Synthetic Fiber Pad 27 oz |
1.98 |
18/64" |
0.545 |
Synthetic Fiber Pad 32 oz |
2.1 |
19/64" |
0.630 |
Synthetic Fiber Pad 40 oz |
2.2 |
11/32" |
0.770 |
Prime Urethane |
4.30 |
21/64" |
1.400 |
Prime Urethane |
4.30 |
1/2" |
2.150 |
Bonded Urethane |
4.20 |
21/64" |
1.350 |
Bonded Urethane |
4.20 |
1/2" |
2.100 |
Carpet |
2.80 |
1/4" |
0.700 |
Carpet |
2.80 |
3/8" |
1.050 |
Carpet |
2.80 |
1/2" |
1.400 |
Carpet |
2.80 |
5/8" |
1.750 |
Carpet |
2.80 |
3/4" |
2.100 |
Wool Carpet |
4.20 |
3/8" |
1.575 |
Wool Carpet |
4.20 |
1/2" |
2.100 |
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