Johns Manville 80 mil TPO Roofing Membrane, White, 8 ft x 75 ft Roll

This Johns Manville TPO roofing membrane is a single-ply thermoplastic olefin sheet for commercial low-slope roofs, supplied white in an 80 mil thickness on an 8 ft x 75 ft roll. One roll covers approximately 600 sq ft before laps and seams. It installs as part of a complete JM TPO roofing system with JM insulation, adhesives and flashing accessories.

Key Features:

• Heavy 80 mil build: The 80 mil gauge provides a thicker thermoplastic olefin sheet for demanding commercial low-slope roof applications.
• Reflective white: The white TPO finish is the factory color of this membrane roll.
• Fully approved: This membrane is FM Approved, UL Classified and Miami-Dade County Approved and meets ASTM D6878.
• System matched: It is designed for use within Johns Manville TPO roofing systems with JM insulation, adhesives and flashings.
• Single roll unit: Each sell unit is one 8 ft x 75 ft roll weighing approximately 235 lb.
• Wide coverage: The 8 ft width reduces the number of field seams compared with narrower rolls.

Specifications Table:

Coverage & How Much You Need:

One 8 ft x 75 ft roll covers roughly 600 sq ft of roof field before deducting for laps, seam welds and perimeter details. Divide the roof area by 600 and add waste for overlaps to size the job.

Fit and Compatibility:

This membrane is part of the Johns Manville TPO roofing system and pairs with JM TPO flashing membranes, insulation and cover boards, adhesives, cements and fastening plates, all sold separately. Membrane attachment method (fully adhered or mechanically fastened) should follow JM specifications.

Frequently Asked Questions (FAQ):

Q: What is included in one order?
A: One roll of JM 80 mil white TPO membrane measuring 8 ft x 75 ft, weighing about 235 lb. Adhesives, fasteners and flashing materials are sold separately.

Q: How much area does one roll cover?
A: Approximately 600 sq ft of nominal area before laps and seam allowances; order extra for overlaps and detailing.

Q: What standards does it meet?
A: It is FM Approved, UL Classified, Miami-Dade County Approved and conforms to ASTM D6878.

Q: Can I install it myself?
A: TPO membrane welding and attachment are specialized trades; installation should follow JM system specifications and be performed per the manufacturer’s instructions and local code.

Q: How thick is the membrane?
A: This roll is 80 mil, a heavier commercial gauge in the JM TPO line.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Choose 80 mil TPO where project specs call for a heavier membrane over standard 45 or 60 mil, such as high-traffic or long-service-life assemblies. Verify deck type and use the JM fastening pattern drawings for mechanically attached installations, or JM-approved urethane adhesives for adhered systems. Always weld seams with JM-approved equipment and flash penetrations with matching JM TPO accessories to keep the system eligible for a JM guarantee.

TPO installation involves hot-air welding equipment, rooftop work at height and heavy 235 lb rolls, so use fall protection, proper lifting practices and follow the manufacturer’s installation instructions and local codes.

Order this Johns Manville 80 mil white TPO membrane roll for your commercial low-slope roofing project.