Responding to moisture How do Douglas fir and radiata compare?

August 2007
New Zealand Tree Grower;Aug2007, Vol. 28 Issue 3, p6
The article discusses three research projects undertaken for the Douglas fir Cooperative in New Zealand, aimed at quantifying the differences between Douglas fir and radiata pine in terms of the responses to moisture by the two species. In the first trial, following seven days exposure, radiata pine reached a moisture content of 27% which would sustain decay, and remained well above that moisture content for the remaining 48 days of the trial. Radiata pine sapwood rapidly attained a moisture content conducive to decay, and Douglas fir did not, in the second trial. A third study confirmed the refractory reputation of Douglas fir, and the absorbent reputation of radiata pine.


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