| COMPARATIVE R-VALUES OF FLOORING AND SUBFLOORS | |||||
| MATERIAL | Thickness | R-Value | |||
| WOOD | |||||
| plywood | 3/4" | R-1.06 | |||
| OSB | 3/4" | R-1.19 | |||
| engineered wood | 1/4" | R-0.25 | |||
| " " | 3/8" | R-0.38 | |||
| " " | 5/8" | R-0.63 | |||
| " " | 3/4" | R-0.75 | |||
| MDF/Plastic laminate | 1/2" | R-0.50 | |||
| engineered bamboo | 3/4" | R-0.72 | |||
| cork tile | 1/4" | R-0.28 | |||
| cork/MDF/laminate | 1/2" | R-1.18 | |||
| Oak | 3/4" | R-0.64 | |||
| Ash | 3/4" | R-0.68 | |||
| Maple | 3/4" | R-0.66 | |||
| Pine | 3/4" | R-0.71 | |||
| Fir | 3/4" | R-0.77 | |||
| TILE/STONE | |||||
| ceramic tile | 1/4" | R-0.02 | |||
| concrete | 2" | R-0.32 | |||
| thinset | 1/8" | R-0.01 | |||
| gypsum | 1-1/2" | R-0.31 | |||
| brick | 1-1/2" | R-0.26 | |||
| marble | 1/2" | R-0.05 | |||
| granite | 1/2" | R-0.05 | |||
| VINYL/RUBBER | |||||
| sheet vinyl | 1/8" | R-0.05 | |||
| linoleum | 1/8" | R-0.05 | |||
| rubber | 1/8" | R-0.05 | |||
| CARPET | |||||
| nylon low | 1/8" | R-0.65 | |||
| nylon plush | 1/4" | R-1.12 | |||
| nylon saxon | 1/2" | R-1.96 | |||
| nylon plush | 5/8" | R-1.83 | |||
| nylon shag | 1-1/4" | R-2.46 | |||
| acrylic level loop | 1/4" | R-1.03 | |||
| acrylic plush | 1/2" | R-1.71 | |||
| polyester plush | 1/4" | R-0.95 | |||
| polyester high-low | 1/2" | R-1.66 | |||
| wool low | 1/4" | R-1.50 | |||
| wool plush | 1/2" | R-2.19 | |||
| PAD | |||||
| slab rubber | 1/4" | R-0.62 | |||
| waffled sponge rubber | 7/16" | R-0.78 | |||
| hair & jute coated | 7/16" | R-1.71 | |||
| bonded polyurethane | 3/8" | R-1.55 | |||
| bonded polyurethane | 1/2" | R-2.09 | |||
| prime polyurethane | 3/8" | R-1.58 | |||
| prime polyurethane | 1/2" | R-2.01 | |||
| frothed polyurethane | 3/8" | R-1.20 | |||
| frothed polyurethane | 1/2" | R-1.61 | |||
| floating floor pad | 1/8" | R-0.20 | |||