1 Sheet Of Plywood For Sheathing R Value
The general plywood r value per inch is 1 25.
1 sheet of plywood for sheathing r value. Plywood the thermal resistance or r value in ft2 hr f btu of plywood panels is listed below. As we said before the r value measures the thermal resistance of a material. 3 8 plywood r value 0 47. 15 32 plywood r value 0 59.
Therefore r values increase with increasing panel thickness. Fiberboard insulating sheathing regular density per inch. Thicker panels have more insulating value. Severe weather 1 2 in common pine plywood sheathing application as 2 x 4.
30 divide this per inch numberby 2 to obtain the r value for 1 2 medium density fiberboard r 1 22. 1 2 plywood r value 0 63. In general one inch of solid wood is considered to have an r value of 1. These values are listed in table 2 of the structural board association s osb in wood frame construction u s.
1 4 plywood r value 0 31.