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 Spray foam insulation is the only truly effective method for insulating
a metal building. The traditional method, Fiberglas batts with a
separate vapor barrier, is not capable of providing a complete air
seal or vapor barrier. During humid conditions many metal buildings
suffer from sweating that actually causes water to drip from the
ceiling. This moisture will damage the structure and promote the
growth of mold and mildew inside and behind the insulation. Handi-Foam®
E-84 Two-Component kits will allow you to completely Insulate and
seal the entire structure. Spray foam will not only provide up to
R-7 insulation per inch but serve as a vapor barrier as well. For
colder areas that need more insulation a combination of 1”
of Handi-Foam® applied to the interior and then covered with a 6”
fiberglass batt will yield an R-25 while eliminating all concerns
for air infiltration, sweating and growth of unhealthy molds.
To calculate the number of kits needed to do your job divide the
total square feet to be sprayed by the board feet of the Handi Foam
kit.
Example: 20’ x 60’ area = 1200 square feet. Divide
1200 S.F. by our II-605 Kit (605 board foot kit) = 1.98 kits needed
or essentially 2 of the 605 kits with a little left over for touch
ups if needed. This calculation is based on achieving a consistent
1” depth of cured foam. Please see this video for an illustration
of the proper spraying technique for insulating a metal building
using a Handi-Foam® kit and one of the supplied fan spray nozzles
attached to the Handi-Gun® Dispenser.
Watch the video.
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