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Where
to buy Natural Select
Retention
Standards from the American Wood-Preservers' Association
For
more information about Natural Select™ treated lumber, please
visit the Natural Select website, click
here, or call 1.800.482.5717.
You'll need Adobe® Acrobat® Reader® to read this PDF document, if
you need to download this program, click
here.
For more information about Natural Select™ treated lumber,
including the warranty, click
here.
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Biewer is proud to announce an addition to our product line: Natural
Select™ treated lumber. Natural Select wood is an alternative
treated lumber and, while new to North America, it is recognized
and approved by government and trade organizations in more than
17 countries.
Same protection,
different ingredients…
Natural Select treated wood works like traditional treated wood,
but the preservatives used in treatment are different.
CCA
ingredients are copper, chromium and arsenate. The patented preservative
in Natural Select wood is a formulation of copper azole (CA). Copper,
derived from recycled sources, is the principal active ingredient,
protecting against termites and fungal decay. Protection against
copper-tolerant fungi is provided by an organic azole that is also
used to protect many of the foods we eat such as fruit, peanuts
and wheat.
The
arsenic-free formulation renders the wood useless as a food source
for termites and fungi while keeping the wood attractive, clean
and odorless.
Commercially introduced in Europe in 1992, Natural Select lumber
is the world's most effective and successful non-CCA treated lumber.
Natural Select's formula is not a restricted pesticide, so no special
EPA precautions apply to handling the wood. It is ideal for many
residential and commercial applications.
And,
while the ingredients of Natural Select
treated
lumber differ from CCA-treated wood, the treatment process and product
performances regarding fungal decay and insect infestation in above
ground and in-ground applications are nearly identical.
| Recommended
Hardware |
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hot-dipped galvanized or stainless steel fasteners. |
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Hot-dipped
galvanized fasteners meeting ASTM A 153 and connectors made
of ASTM A 653 Class G185 sheet or better, are recommended for
protection against the effects of moisture often present where
treated wood is used. |
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For
Permanent Wood Foundations, use 304 or 316 stainless steel.
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Direct
contact with aluminum is NOT recommended. When
using aluminum, a protective physical barrier should be used
to separate the aluminum from the wood. |
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While
galvanized fasteners are preferable, the use of non-galvanized
nails of sizes and types approved by the Model Code is acceptable
when attaching joists, studs, or other framing to Natural Select
sill plate, provided the wood will remain dry in service, protected
from weather and water. |
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The
use of standard galvanized strapping or mild steel anchor bolts
1/2" diameter and larger are acceptable for fastening wood
to foundations, provided that the wood will remain dry in service,
protected from the weather and water. |
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In
corrosive environments, such as areas with saltwater spray,
stainless steel may be advisable. |
Contractors
following these recommendations and exceptions, will not experience
hardware corrosion resulting from Natural Select wood. |
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