Roofing with Urethane
Closed cell foam 's ability to adhere to most surfaces makes it ideal for roofing. In traditional asphalt shingled roofs, the old roof must be removed before a new roof is applied. This may also lead to exposure of fiberglass dust particles, which may cause harmful heath effects
Closed Cell Foam for Roofing - Light Weight, Puncture Resistant and Long Wearing
Spray foam is less than a 10th the weight of typical tar and usually does not require the removal of old roofs. Because of foam's light weight and structural integrity it is greatly valued as a roofing material. It is also puncture resistant. Traditional tar is vulnerable to cracks in the cold climates and bubbles in the hotter climates. With a proper reflective roof coating, foam will never shift, crack, or bubble on any roof. Foam roofs have been known to last 30+ years. In several instances, tornadoes have come through towns leveling everything only to find a foam applied roof building in good shape. The Superdome in New Orleans, LA was hit by a hurricane only to be saved by its foam roof applied year earlier. It is also very resistant to wind uplifts because of it's adhesion properties.
Other applications of closed cell foam include piping insulation, floatation devises, hulls of tankers, temporary vegetable storage, trim forms and building blocks for residential homes.
Because of the Urethane’s cell structure there is approx. 1 million cells per inch. This means that to have a leak, one must make a hole completely through 2+ million cells. This rarely happens and can be easily repaired.
Urethane can be installed on any substrate and any pre-existing roof. Meaning, that there is less tear off time and less disposal of loose materials from the surface of the existing roof that is applied.
Most of the loose material that is removed from the roof sometimes, actually weighs more than the foam that is being applied. Meaning that the roof will actually be lighter than the previous without compromising the structural integrity of the new roof.
Can easily be shaped or sprayed to form a slope or pitch for those roofs with problems facilitating water. It also, because of it’s expanding capabilities, conforms to any crack, hole or build up to make a smooth finish form fitting finish.
Unlike other roofs that require regular repair, spray foam does not. When the cells have been completely broken through (a leak) repair consists of a caulk gun and a tube of caulk not some expensive repairman with a kettle of hot tar and costly man-hours.
Foam adheres to any surface and makes a complete seal around any utility drains or exhausts. Meaning that it also makes a complete seal at any edge of the surface being foamed (self-flashing). This eliminates the vulnerability of the edges from wind updrafts and hard rains etc.
Because there are no VOC’s, formaldehydes, or CFC’s at the time of application or anytime during the life of the roof there is not any ozone or atmospheric depletion. A big issue in Federal Government’s regulations in industrial and residential application of polyol foams.
The layer of foam on the roof also provides a extremely better sound barrier and insulating product than conventional roofing materials and methods.
The time in which to install a foam roof is much less than that of a tar or shingle roof with much less clean up and less man-hours. Also, cutting down hazardous conditions (hot tar, sharp edges, greasy oil spots, fiberglass dust, heavy objects, caustic chemicals, etc.) and the possibility of an employee to be hurt and down time (burns, slips, back strain, pulled muscles, bad knees, etc.).
With the ability to cut the foam adding utilities or taking them down becomes a major factor as well. The ability to cut a drain for a new a/c unit or the ability to fill a drain hole with practically no major repairs will prove to be most valuable in future expenditures.
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