PVC Flat Roof Repair and Replacement
Like EPDM, PVC is most frequently used on larger roofing jobs. Seams between PVC sheets are welded together with a hot-air welder. This ensures superior seam strength and makes the membrane resistant to leaks and wind blow-off.
One benefit of installing PVC roofs in Minnesota is that PVC roofing can be installed year-round. Since the temperature of the heat welded seams is critical to getting a strong bond, we adjust our welder temperatures upwards in the winter to compensate for cooler ambient temperatures. Welding PVC seams relies heavily on the craftsmanship of the roofing professional to achieve the correct temperature, pressure and speed required for a perfect weld. The advantage of hot-air welding a PVC roof compared to solvent based glued seams is you don’t have to deal with the seam adhesive freezing, which can making installation or repair problematic.
PVC roofs that are installed with welded seams are stronger than the material itself, plus PVC membrane is impermeable to moisture and offers excellent long-term durability. The membrane is armored with synthetic threads, so even after 30 years it still remains flexible and easy to weld to, making it easy to patch and maintain. Because PVC roofing is naturally white, it has outstanding heat-reflective qualities without needing any additional coating or extra treatment.
Methods of Adhering PVC Roofing Membranes
Fully Adhered System
Mechanically Attached
RhinoBond® System
Ballasted System
Professional roofers can install PVC roofs year-round in Minnesota
PVC Commercial Flat Roof Replacement Prices
These prices would not include insulation to code. For example, if the R-value for a typical home is R-38, the requirement would be more than 6 inches of insulation. Most structures in Minnesota already have some insulation, so the price would be based, on the additional insulation required.
These prices fluctuate in terms of size and difficulty, and may cost more than noted above. Very small and difficult projects are more expensive, due to greater labor and possibly added material costs. With any of these membranes, more penetrations add to the difficulty and to the final cost. The cost is dependent on the amount of detail work required.