วันพฤหัสบดีที่ 26 พฤษภาคม พ.ศ. 2554

Continuing Education For Architects And Engineers In Wood Preservation

Untreated wood left exposed to outdoor conditions becomes susceptible to decay and degradation by natural forces.  While some species of trees have some degree of natural resistance to decay most of the commonly used species do not.  Therefore wood left exposed to the elements should be protected against decay and destructive insects by applying chemical preservatives.  Several factors influence the degree of protection that can be achieved with chemical preservatives, including the species of wood being treated, the type of chemical being applied, the method of application, the degree of penetration of the preservative into the wood and the length of time the chemical is retained in the wood.

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