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FREQUENTLY ASKED QUESTIONS
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About waterproofing
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About painting & waterproofing in general |
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What is elastomeric paint? |
Does your company paint wood
buildings? |
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What is its dry film thickness and
millage rate? |
What are best specifications for
concrete decks & walkways? |
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When is a masonry conditioner or
primer needed? |
What about metal railings and
windows? |
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What is "Pinholing" |
Is there a difference between brush
and roll and spray application? |
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How should rust and corrosion be
prepared? |
Is my contractor's workers
compensation exemption form OK? |
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Can wood surfaces be waterproofed? |
Why should I require a manufacturer
warranty and inspections too? |
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What should be caulked and what
shouldn't? |
What is the best way to set up the
"draw schedule" for work completed? |
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How can I be sure that the finished
project is what I expected?
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ABOUT
WATERPROOFING
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What is elastomeric paint?
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A thick, rubberized paint product relatively
high in acrylic content.
Generally water-based,
it creates a waterproof membrane between stucco
or masonry substrate and outside elements. With
300% elasticity, this coating can bridge cracks
up to 1/8" wide when applied properly. |
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What is its dry film thickness and
millage rate?
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Warranty requirements on the label of each
product can include dry film thickness and
millage rates. If you go back to the
manufacturer for a warranty at a later date,
they will require that the dry film
thickness and millage rate was to their
specifications. It is very important to
apply elastomeric paints very heavily for
them to do what they're designed for to
protect surfaces and seal them from the
elements
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When is a masonry conditioner or primer
needed?
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A masonry conditioner, or bonding sealer, is
used over a chalky surface to help paint
adhere. Bonding sealers have a very thin
viscosity compared to normal paints,
allowing them to penetrate chalky surfaces.
After drying, the surface has a smooth
finish, allowing paint to adhere properly. A
primer is used on wood or bare concrete when
there is not an adhesion concern.
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What is "Pinholing"
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Pinholing can appear when very small air
pockets, or bubbles, develop during elastomeric
application. As the surface dries, these bubbles
work their way out, leaving pinholes. Left
unchecked, pinholes can fill with water, which
can penetrate the coating and cause "ballooning"
of the coating. The surface should be thoroughly
inspected after coating and pinhole areas
re-coated Usually with two coats of elastomeric,
pinholing is eliminated. But if only one coat is
specified in your contract, pinholing can be a
problem. |
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How should rust and corrosion be
prepared?
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If there is a rust stain on wood or stucco, it
should either be drilled out at least 1/4" -
1/2," primed, filled and then coated over.
Simply treating the stain or rusted fastener
with osforic acid and spot priming is not
adequate and the rust stain will come back in a
short time. On iron brackets, electrical
conduit, hinges, etc., if the rust cannot be
removed by either cutting it out or
sandblasting, the rust will come back. There are
some coatings that offer years of protection
against bleed-through, but if the rust is not
properly removed, it will come back eventually.
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Can wood surfaces be waterproofed?
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It is difficult to completely waterproof wood
surfaces because the very nature of wood causes
it to swell and contract. Wood surfaces can,
however, be made water-repellent. Caulked and
sealed properly, they will adequately repel and
shed water. Exterior wood must be allowed to
drain so water doe not become trapped behind the
siding and cause damage. |
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What should be caulked and what
shouldn't?
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A good painter will leave a surface
uninterrupted by cracks. Have your bid and
contract clearly specify all areas that will be
caulked or left uncaulked, with reasons for not
caulking. Generally speaking, window openings,
wall to deck joints, expansion joints and any
visible cracks in the surface wood or masonry
should be caulked. If they aren't, the
contractor should provide you with a valid
reason for not caulking and it should be spelled
out in the contract. |
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ABOUT PAINTING
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Does your company paint wood buildings?
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Action
Painting does
many different types of projects,
ranging from condominiums, apartment buildings
and office complexes to single family homes.
Many of these properties have wood siding that
requires high-quality specifications,
applications, and knowledgeable personnel to
deliver a first-rate job and provide good
warranties. |
What are best specifications for concrete
decks & walkways?
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This will depend on what, if anything, has been
previously applied to the surface. Bare concrete
that has never been coated must be etched with
muriatic acid and given two coats of the
appropriate product. The coating will depend on
your choice of "sheen level." Products we
recommend include concrete stains and catalyzed
urethane deck paints. If the surface has been
previously painted, new coatings must be
compatible for best adhesion. |
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What about metal railings and windows?
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Metal surfaces require different specifications
and primers, depending on the type of metal. For
instance, galvanized will require a different
preparation and coating than aluminum. It is
important that all metal to be painted and
warranted be properly identified, and the
specifications, primers and finish coatings be
clearly specified in the contract so you can be
assured that it is being handled properly. |
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Is there a difference between brush and
roll and spray application?
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Usually brush and roll is superior to spray
application. Most surfaces wood, stucco or
masonry will have small cracks and crevices that
only brush and roll application can effectively
fill and cover. With spray application,
the coating tends to just lay on the surface. It
is also difficult to get adequate millage
because it must be sprayed so heavily it will
tend to sag and run. Also, with spray
application a good portion goes into the air.
When selecting the right specification, be very
clear with the contractor as to how he will
apply the coating. One contractor may be more
expensive than another due to the application
method. Brush and roll application is slower
than spray, but is of much higher quality. |
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Is my contractor's workers compensation
exemption form OK?
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Generally, no. Only small companies with three
or fewer employees are allowed to claim exempt
status. If you decide to accept the exemption,
the contractor must provide you with an
exemption form for each of the workers on the
job. One form will not cover all of the workers. |
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Why should I require a manufacturer
warranty and inspections too?
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A contractor's warranty is only as good as the
contractor's ability to honor it. If you require
a manufacturer's warranty as well, you can
require the manufacturer's representative to
inspect the project at predetermined intervals
to assure that procedures are done properly. We
recommend the representative inspect the
pressure washing, chlorinating and cleaning
first, then the surface preparation and bonding
sealer, first finished coat, and second finished
coat phases. This holds two separate companies
responsible for the work and gives you
additional comfort that the work is being done
according to specifications. |
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What is the best way to set up the "draw
schedule" for work completed?
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Action Painting
Services compartmentalizes the project into
predefined sections. Draws are made when each
section is completed to your satisfaction all
the way through to the finish coat. This allows
you to see finished phases and avoid nearing the
end of the project to find the contractor has
insufficient funds to properly complete the
project. By compartmentalizing and requiring the
contractor to complete phases from beginning to
end, you can better gauge what you're paying
for. |
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How can I be sure that the finished
project is what I expected?
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Once the contract is signed, require the
contractor to complete a sample wall a small
section that is representative of all or most of
the project surfaces.
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