“We completed the applications in the garage and shed prior
to the start of the roof as the crews needed the extra time to
complete the roof tear off and prep,” continues Egely.
With the foam insulation in place in both the shed and
the garage, the spray crew moved over up to the roof of the
house. The roofing portion of the project consisted of the
application of two inches of closed-cell SPF to the roof
surface and the low parapets. The Midgaard crew installed to
the roof surface a total of 2.5 sets of foam.
“Spray foam was the obvious choice for this project,” says
Egely. “Once the foam was installed, the leaking issues
were readily solved. It did not take much convincing to
get the homeowner to see the value in it. The use of spray
foam helps provide a sustainable building environment by
providing a more efficient insulation system, built-in air
barrier, and a seamless monolithic roofing system.”
The foam was installed in one-inch lifts with some areas
requiring multiple passes to reach the necessary height and
ensure that ponding would not be an issue.
“The short height of the parapets presented a bit of an issue,”
says Egely. “Because the roof had parapet caps that reached
down to the roof and were only about five inches, we had
to be careful about the depth of foam that we installed in
order to make sure everything drained properly.”
Personnel safety was paramount during the roofing portion
of the project since the parapet wall height was only five
inches above the roof deck. Due to this, the crew placed
delineator cones six feet away from the roof edges and,
as an additional precaution, whenever the applicator
The combination of foam and polyurea
provides a robust, monolithic system that
bolsters the roof, enabling a low life cycle
cost designed to last more than 30 years.
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