Heat transfer coefficients (lambda) of wood and wood-based materials

This article is part of a general article on the heat transfer coefficients

Lambda given in W / mK

• Light hardwood 435 <p <= 565 0.15

• Heavy hardwood 750 <p <= 870 0.23

• Medium-heavy hardwood 565 <p <= 750 0.18

• Very light hardwood 200 <p <= 435 0.13

• Very heavy hardwood p> 870 0.29

• Compressed cork p <= 500 0.10

• Pure expanded cork p <= 150 0.05

• Compressed straw 0.12

• Plywood board 250 <p <= 350 0.11

• Plywood board 350 <p <= 450 0.13

• Plywood board 450 <p <= 500 0.15

• Plywood board 500 <p <= 600 0.17

• Plywood board 600 <p <= 750 0.21

• Plywood board 750 <p <= 900 0.24

• Plywood panel p <= 250 0.09

• Fiberboard 200 <p <= 350 0.10

• Fiberboard 350 <p <= 550 0.14

• Fiberboard 550 <p <= 750 0.18

• Fiberboard 750 <p <= 1000 0.20

• Fiberboard p <= 200 0.07

• Particle board 270 <p <= 450 0.13

• Particle board 450 <p <= 640 0.15

• Particle board 640 <p <= 820 0.18

• Particle board p <= 270 0.10

• Light softwood p <435 0.35

• Heavy softwood 520 <p <= 610 0.18

• Medium-heavy softwood 435 <p <= 520 0.15

• Very heavy softwood p> 610 0.23

More:
- Forum insulation
- Folder comparison on natural and ecological insulation
- Properties of others insulating materials, lambda coefficients of thermal transmission