Preparation and Application
- Log and Timber Frame
Homes: When purchasing a
log or timber frame home package, the quality and condition of the wood
may vary when delivered to the job site. With untreated new wood, the
surface needs to be cleaned by using your choice of cleaning agents.
However, cleaning agents containing bleach or other such ingredients may
permanently discolor the surface tone and damage the wood cells. The use
of a 3,000 psi power washer and/or light sand blasting equipment may be
more desirable. Regardless of cleaning procedures, all wood must be
covered and protected from the elements and kept clean prior to
application. In addition, the surface must be dry, with the moisture
content of the wood kept as low as possible.
- Siding, Roofing,
Decking, Fencing, etc.: It is important for the wood to be totally
covered and protected from any exposure to sun, wind, rain, etc. Clean
and/or remove any blemishes on the wood that has been exposed to the
above elements prior to application. Any blemishes, grading marks, stains
or dirt may permanently alter the quality and color of the finish if not
removed. The problem is especially acute with smooth finished wood. It is
important that all surfaces be kept clean and dry prior to application,
with the moisture content of the wood kept as low as possible.
- Component Wood:
When used on the component parts for finished products (hot tubs, spas,
furniture, wood windows, gazebos, etc.) clean and/or remove any blemishes
on the wood that has been exposed to sun, wind , rain, etc. Any
blemishes, grading marks, stains or dirt appearing on the surface may
permanently alter the quality and color of the finish if not removed. The
problem is especially acute with smooth finished wood. It is important
that all surfaces be kept clean and dry prior to application, with the
moisture content of the wood kept as low as possible.
- Temperature: Do
not apply in temperatures above 80 deg. F (26.7 deg. C) or in direct
sunlight unless a varnished appearance is desired, for this may cause a
surface film. In temperatures above 70 deg. F (21.1 deg. C) or when
working in direct sunlight, it may be necessary to lightly mist with
water to help cool the surface temperature. When applying the product,
periodically touch the surface to make sure it is not becoming warm or
sticky. If this occurs, be sure to apply water to the surface prior to
any further applications.
- Spraying or
Dipping: All wood surfaces may have product applied by pre-dipping or
spraying, with multiple applications providing greater protection.
Uniformly coat each section of log or piece of wood as quickly as
possible, and remove all excess product which has not penetrated within a
few minutes or less. This can be accomplished by using rotating brushes,
fans, air rings, etc. When dipping shingles or shakes, the product must
penetrate the entire bundle and/or each shingle or shake. High
temperature, hot air or heated chambers should only be used for drying
purposes when all product has either penetrated or been removed from the
surface unless a varnished appearance is desired.
- Storage: After
each application on logs or sections of wood, and all excess product is
removed, stack finished wood in a dry covered location. To shorten the
drying time, use stickers on the unexposed side of the wood which are of
a dissimilar product such as plastic, vinyl, etc. If wood stickers are
used they must be pre-dipped with the same product and dried to prevent
PROBLEMS OF FIELD
- Wood that has been
unprotected and exposed to the elements often creates a loss factor of up
to 20% of the original inventory which must be factored into the overall
- Labor costs are increased
as a result of having to pick and choose the usable portion of each log
or piece of wood due to damaged and weathered wood.
- The preparation and
application costs are greater due to the additional preparation time
required to protect the surrounding project and time spent on clean up.
- By this method only one
side has any level of protection which leads to a quicker deterioration
of the exterior surface and often creates higher maintenance