Roof Systems in Missoula, MT
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Roof Systems in Missoula
A roof system fails in the order it was assembled, so the choice of system starts with the deck and ends with the surface. In Missoula, MT that choice has to survive a 40 psf design snow load, about 45 days a year that never rise above freezing and summer swings of more than 30 F in a day. We install and repair single-ply, asphalt-based, metal, foam and coating systems, and we recommend by building, slope, drainage and the work window the owner has.
Weigh Single-Ply Membranes for Low-Slope Roofs
TPO roofing and PVC roofing are heat-welded sheets that reflect sun and seal at the seams. EPDM roofing is a rubber sheet that stays flexible in cold, and KEE roofing is a PVC-based sheet with a plasticizer-resistant blend. Each suits a different mix of rooftop traffic, chemical exposure and budget.
Use Layered Asphalt Systems Where Traffic and Redundancy Matter
Modified bitumen roofing and built-up roofing build redundancy by stacking layers. They tolerate foot traffic from service crews and recover well from tool drops. The tradeoff is weight and a longer installation, which matters when snow load already uses much of the structure's capacity.
Consider Metal for Snow Shedding and Longevity
Standing seam metal roofing sheds snow and hides its fasteners under the seam, but it needs snow guards over doors and walkways. A metal roof retrofit can go over an aging roof where the framing allows, and the structural check comes before the order.
Restore or Insulate With Foam and Coatings
Spray polyurethane foam roofing adds insulation and a continuous surface with no laps. Silicone roof coatings handle ponded water, while acrylic roof coatings suit roofs that drain well. Both depend on dry insulation, so a moisture survey comes first.
Match the System to the Building
The University of Montana campus, the big-box retail on North Reserve Street and the hangars near Missoula Montana Airport each ask different things of a roof. We compare the options in writing, with installed cost drivers, the weather window each needs and the maintenance each asks for. Details of the insulation and cover board under the membrane often decide the outcome as much as the membrane itself.