Johns Manville PVC T-Joint Patch 4.5 in. Flexible Elvaloy KEE Membrane Patch, Multiple Colors

This Johns Manville PVC T-Joint Patch is a flexible, nonreinforced thermoplastic patch used to cover joints, discs and fasteners in PVC roofing membranes. It is designed to seal seam laps where perimeter and/or header sheets intersect at T-joints. One patch is included per unit; choose from White, Gray, or Sandstone to match the membrane.

Key Features:

• Seals T-joints: Used to seal seam laps where perimeter and/or header sheets intersect in PVC roofing systems.
• Covers fasteners: Flexible, nonreinforced material covers joints, discs and fasteners in the membrane.
• Elvaloy KEE material: Made of flexible, non-reinforced, UV-resistant PVC with Elvaloy KEE (ketone ethylene ester).
• UV resistant: The UV-resistant PVC formulation is made for exposed single-ply membrane conditions.
• Color matched: Available in White, Gray, and Sandstone to coordinate with JM PVC membrane colors.
• System matched: Designed for use within Johns Manville PVC roofing systems.

Specifications Table:

Coverage & How Much You Need:

One patch covers a single T-joint, fastener disc, or penetration point. Size the job by counting T-joint intersections on the roof; order one patch per location.

Fit and Compatibility:

Intended for Johns Manville PVC roofing membrane systems at T-joint intersections of perimeter and header sheets. Compatible with membrane of matching color; weld per JM specifications. Sold individually.

Frequently Asked Questions (FAQ):

Q: What is included in one unit?
A: One 4.5 in. PVC T-Joint Patch in the selected color, sold each.

Q: Where is this patch used?
A: At T-joints where perimeter and/or header sheets intersect, and to cover joints, discs and fasteners in PVC membranes.

Q: What is the patch made of?
A: Flexible, non-reinforced, UV-resistant PVC with Elvaloy KEE (ketone ethylene ester).

Q: Which colors are available?
A: White, Gray, and Sandstone.

Q: How many do I need?
A: One patch per T-joint intersection or fastener location; count the intersections on your roof and order that many.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Match the patch color to the membrane for a consistent finished appearance. Install and weld the patch per Johns Manville PVC details, ensuring the T-joint area is clean and dry before heat welding. Keep a few patches on hand for detail work and fastener repairs during the main membrane installation.

Heat welding PVC patches involves hot-air equipment and hot material; follow the manufacturer’s installation details and wear appropriate protective gear.

Order the Johns Manville PVC T-Joint Patch in the color that matches your membrane today.