Official Journal of the Japan Wood Research Society
Exposure condition | Thickness change (%) | Mass loss (%) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
PF board | MDI board | Aspen board | Pine board | F-MDI board | F-MUF board | PF board | MDI board | Aspen board | Pine board | F-MDI board | F-MUF board | |
5-year high humidity | 3.34 | 2.65 | 7.64 | 6.60 | 1.66 | 2.38 | 0 | 0 | 0 | 0 | 0 | 0 |
5-year cyclic humidity | 2.66 | 2.12 | 10.8 | 5.14 | 1.00 | 1.32 | 0 | 0 | 0 | 0 | 0 | 0 |
1-year outdoor | 3.16 | 2.51 | 10.5 | 6.37 | 0.397 | 1.02 | 0 | 0 | 0 | 0 | 0 | 0 |
3-year outdoor | 6.02 | 4.08 | 12.6 | 8.82 | 0.746 | 2.32 | 1.59 | 0.67 | 1.62 | 0 | 0 | 0 |
5-year outdoor | 15.2 | 4.01 | 16.0 | 10.7 | −0.130 | 2.01 | 4.34 | 2.54 | 6.65 | 2.37 | 2.37 | 1.79 |
JIS Test B | 16.7 | 4.90 | 21.1 | 13.5 | 1.50 | 9.70 | 2.40 | 1.20 | 1.20 | 0.70 | 0.70 | 1.90 |