| 9. Protective Sealers and
Finishes- Unless otherwise specified, sealer shall be applied to the ends of
all members. Surfaces of members shall be (not sealed)(sealed with penetrating sealer)
(sealed with primer/sealer coating).(5) 10.
Trademarks -Members shall be marked with the Engineered Wood Systems APA EWS
trademark indicating conformance with the manufacturing, quality assurance and making
provision of ANSI Standard A190.1.
11. Certificates (when applicable)-
A Certificate of Conformance shall be provided by the (manufacturer)(seller) to indicate
conformance with ANSI Standard A190.1.
12. Protection for Shipment -
Members shall be (not wrapped) )load wrapped)(bundle wrapped) (individually wrapped) with
a water-resistant covering for shipment.
GLULAM BEAM STORAGE AND HANDLING
APA EWS trademarked glued laminated beams (glulam)
are commonly protected with sealants, primers or wrappings when they leave the mill. But
care must be taken during loading, unloading and transporting as well as in the yard and
on the job site.
Sealants on the ends of beams help guard against moisture
penetration and checking. Apply a coat of sealant to the ends of beams after trimming.
Surface sealants, which can be applied to the top, bottom and sides of beams, resist dirt
and moisture and help control checking and grain raising. Use a penetrating sealant if
beam sill be stained or given a natural finish.
A primer coat also protect beams form moisture and dirt an
provides a paintable surface.
Water-resistant wrappings are another way to protect beams
form moisture, dirt and scratches. Because sunlight can discolor beams, opaque wrappings
are recommended. Beams can be wrapped individually, by the bundle or by the load. In
situations where appearance is especially important, the wrapping can be remove daffier
installation to avoid damage.
If possible, store glulam under cover to protect them from
rain and sunlight. Place the beams on spaced lumber bunks on level,well-drained ground. In
some instance,s the wrappings can be used to protect beams until installation. Again, seal
ends of beams immediately after trimming. Once beams are install,d allow them to gradually
season and adjust to the temperature and moisture condition of the structure.
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