Metal roof underlayment helps manage moisture beneath metal panels. Spycor Building Products carries Dörken DELTA-TRELA, which combines a vapor-permeable membrane with an 8 mm structured separation mat to support ventilation and drainage beneath metal roofing.
Metal roofing contractors, custom home builders, and general contractors can order rolls covering 323 square feet. Check roof slope, panel compatibility, and installation details against the project specification. Follow Dörken instructions for overlaps, penetrations, and fastening, including the required DELTA-SEALING NAILS, purchased separately.
