52 JANUARY 2017 COATINGSPROMAG.COM
existing roof system was also buried beneath ducting, almost
1,000 lineal feet [304.8 m] of conduit, gas lines, and chiller
lines." On top of that, there were large rooftop structures and
multiple nonconventional rooftop objects.
"A ll of this required carefully thought-out custom integra-
tion into the new roof system," Harvey said. "Additionally, the
rooftop is a potentially hazardous environment, with numerous
high temperature furnace exhaust vents, which exhaust 3 feet
[0.9 m] off of the roof surface and had to remain operational
during this project."
A fter review ing the proposal in detail, the manufacturer's
specifications for both the 2.8 -pound (1.3 kg ) roofing foam
The substrate on the 15,000 sq. f t. (1,393.5 m²) roof wa s in poor
condition, so the 8- to 10-person crew first needed to remove the old
covering down to the deck.
Working with a tight deadline, the crew kept moving along. With the
deck exposed, the crew was able to power wash the substrate and then
install the PREMICOTE P-64 primer.
SPF Roofing Job
Wr i te in Re ad e r In q u ir y #60