Insulation of natural wood and wood-based materials

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

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