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14
advantages of Polyurethane Foam Roofing
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1.
Seamless -
Sprayed polyurethane foam forms a seamless insulated
roofing system. It has no joints or seam that often allow
outside water and air to pass through the roofing system into
the building structure. Whether a roof is 10,000 square feet,
100,000 square feet or larger in size, it will have NO SEAMS. |
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2. Eliminates Flashing Leaks
– Because sprayed polyurethane foam conforms
to the substrate and when installed, is a seamless system, it is
ideal for flashing parapet walls, roof penetrations and roof
mounted equipment, including vents, pipes, stacks, HVAC
equipment, skylights, and cooling towers. Many roof leaks are
caused by faulty flashings. Sprayed polyurethane foam solves
this problem. |
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3. Elimination of ponding water –
In reroofing
applications, ponding water may be eliminated by adding
an increased thickness of polyurethane foam in low areas.
Building up the low areas and sloping the roof so that it
drains properly will eliminate ponding water and the
additional load factor that is caused by water
accumulation. |
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4. Lightweight
–
The weight of polyurethane foam is between 2-3 pounds per
cubic foot. One inch of polyurethane foam insulation plus
30 mils of an elastometric coating weighs approximately
60 pounds per 100 square feet, as compared to
approximately 600 pounds per square feet for a typical
conventional four-ply built-up roofing system. This makes
a sprayed polyurethane foam system ideal for re-roofing
as it is often possible to apply over an existing
built-up roof without removing it. |
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5. Highest "R"
Value – Sprayed
polyurethane foam has an "R" value of 7.14, enabling it to
provide more thermal resistance with less material than any
other insulation. |
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6. Chemically Stable
– Sprayed polyurethane foam, although inert,
must be protected from sunlight by a UV resistant elastomeric
coating. It is odorless, resists attack by either mildew or
fungi and has no nutritive value. |
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7. Minimizes
Thermal Shock – Because a polyurethane foam roofing system
is seamless, has a high "R" value and is covered by a reflective
elastomeric coating, it greatly reduces the thermal shock a
building is subjected to because of fluctuating outdoor
temperatures. |
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8. Versatility – It can be sued on both new and replacement
roofs, whether flat, pitched, saw-toothed, domed or having
unusual slopes or configurations. It is also ideal for the spray
application to tanks, freezers, coolers, piping, ductwork and
various aerospace projects. |
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9. Rigidity –
While sprayed polyurethane foam is very
light-weight, it is strong and will not pack down or sag. |
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10.
Flexibility- It has the ability to withstand a
structure’s normal expansion and contraction without affecting
the ability to keep the structure protected from the outside
elements. |
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11. Watertight
– Polyurethane foam is made of billions of minute
closed cells which resist the penetration of wtaer and
vapors. It must, however, be protected by an elastometric
coating suited for use In that particular environment. |
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12. Long-lasting –
The elastomeric coating system which
protects the polyurethane foam can be rejuvenated by the
re-application of additional coatings after the initial coatings
system has weathered after many years of service. |
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13. Ease of application –
A Sprayed polyurethane system can be
applied in a relatively short period of time with little or no
disruption of building operations by an experienced, qualified
polyurethane foam contractor. |
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14. Ease of maintenance –
Minor repairs or modifications to a
polyurethane system can be made by in-house maintenance
personnel at minimal cost. All that is needed is a hand caulking
gun and a tube of caulking. |
Insulation
Gaco-Western®