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Proper Handling, Packaging and
Storage of Foil Faced Metal Building Insulation Composites.
Vapor retarders that have exposed aluminum foil
surfaces, such as R-3035 HD, WMP-F (foil exposed) and Arenashield, are
susceptible, under specific conditions, to a form of oxidation that results
in dark stains on the surface of the foil.
These stains can develop when the foil is allowed to remain in
direct contact with wet insulation and/or wet insulation packaging.
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1) |
When using water based adhesives,
make certain that the application rate is as low as possible. It is
important to limit the amount of water in the insulation. A typical
water based adhesive, applied at the correct application rate, will add
approximately one pound of water to a 400 sq. ft. roll of insulation.
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2) |
Allow the laminated material to dry as much
as possible before sealing the material in plastic non-permeable
packaging. This is the most critical in the cooler months
of the year, as dew point temperatures will likely be reached |
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3) |
Make certain that all packaging has
sufficient ventilation to avoid condensation, both within the
package and on the surface of the foil. If condensation
forms, remove the material from the package and allow it to
thoroughly dry. The potential for staining is very high
when water is visible within the package |
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4) |
At the jobsite, all packages should be
stored on a pallet or similar surface. Rolls should never
be stored in direct contact with the ground or on concrete slabs |
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