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to be designed and constructed in such a manner
retention and end penetration; and (b) vacuum process or
as to prevent the accumulation of water within
hot-and-cold-bath method using treating cycles designed
the wall assembly by providing a water-resistive
to produce the desired retention and penetration.
barrier behind the veneer. In some exterior wall
Preservatives used for non-pressure treated wood are
petroleum based. The water-repellant preservative should applications, a double layer of felt paper may be
meet the standards of the Window & Door Manufacturers
required. The designer should check with the list-
Association or the American Wood Preservers Association
-
. The treatments
prescribed in have a heavier concentration of
building code.
preservatives and are not recommended for painting.
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