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DURABOARD®
Frequently Asked Questions
What thermal
considerations should be noted?
How do I splice a joint?
What kind of adhesive should I use?
How should I go
about nailing/fastening DuraBoard?
What should I know
before I begin painting?
Where can you use DuraBoard?
What
thermal considerations should be noted? (Expansion and Contraction of PVC)
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Over
an 18' span expect an approximate expansion or contraction of 1/2" (12mm)
for 60C change in temperature.
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Expansion and contraction is a function of the length and change in
temperature.
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To
control the expansion, nailing (see nailing section) schedule of 16" on
center.
How do I splicing a joint?
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To avoid join separation
over long spans, joints are to be glued together using appropriate adhesives
and nailed on either side of the joint.
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Scarf joint should be used.
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Remember to allow for
adequate expansion and contraction at the end of your long span. The
recommended allowance is 1/8" (3mm).
What kind of adhesives should I use?
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To
bond DuraBoard to itself, most people use PVC cement or
Bond&Fill.
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To
bond DuraBoard to other construction materials, PL Premius adhesives will
provide you with good results.
How should I go
about nailing/fastening DuraBoard?
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Galvanized box mails are preferred.
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Do not
nail closer than 2" from the edge (tendency to crack under cold conditions).
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Within the width of the trim no more than 4" on center.
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16"
c/c nailing schedule is recommended.
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If
nailing below 0C pre-drilling is recommended and use smooth shank nails.
What should I know
before I being painting?
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Avoid
using dark colors if possible.
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Lightly sand surface and apply exterior latex primer then apply exterior
latex paint.
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Sherwin William paints have been tested with
DuraBoard and their Vinylsafe Color Technology delivers exceptional results.
Click here for more information on
Sherwin Williams Vinyalsafe Color Technology, or visit their website at
www.sherwin-williams.com.
Where can
you use DuraBoard?
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Exterior Trim |
Sills |
Fascia Board |
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Corner Boards |
Bay Window |
Curved Moulding |
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Exterior Columns |
Gingerbread Moulding |
Pilaster/Fluted Casing |
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Soffits |
Door Jambs |
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