Johns Manville JM PVC T-Joint Patch, White/Grey, 4-1/2 in.
$10.00
PVC T-Joint Seam Patch
The Johns Manville PVC T-Joint Patch is a flexible, UV-resistant PVC accessory designed to seal seam laps where perimeter and/or header sheets intersect (T-joints) in PVC roofing systems. It helps reinforce vulnerable intersections for a cleaner, more durable single-ply membrane detail.
Key Features:
- Purpose-Built T-Joint Sealing: Designed to seal seam laps where perimeter/header sheets intersect in PVC systems
- UV-Resistant PVC Construction: Flexible, non-reinforced PVC formulated with Elvaloy® KEE for weathering resistance
- Compatible Color Option: White/Grey patch to match common PVC membrane installations
- Jobsite Convenience: Sold individually for easy takeoff and waste reduction
- Single-Ply Flashing Accessory: Intended for commercial PVC roofing membrane detailing and repairs
Please check the Product Data Sheet Here
Specifications Table:
| Specification | Details |
|---|---|
| Product name | Manv PVC T-Joint Patch White/Grey |
| Brand | Johns Manville |
| Category | Flashing |
| Subcategory | Single Ply Membrane Flashing |
| Unit of measure | PC – Piece |
| Color | White/Grey |
| Size / diameter | 4-1/2 in. |
| Material | Flexible, non-reinforced, UV-resistant PVC (polyvinyl chloride) with Elvaloy® KEE (ketone ethylene ester). |
| Intended use | To seal seam laps where perimeter and/or header sheets intersect (T-Joint) in PVC systems. |
Frequently Asked Questions (FAQ):
Q: What is this patch used for?
A: It is used to seal seam laps at T-joints—where perimeter and/or header sheets intersect—in PVC roofing systems.
Q: What material is the patch made from?
A: Flexible, non-reinforced, UV-resistant PVC (polyvinyl chloride) with Elvaloy® KEE (ketone ethylene ester).
Q: What size is this patch?
A: This White/Grey version is listed as 4-1/2 in. diameter.
Q: What colors are available?
A: The product line is offered in White, Grey, and Sandstone (this variant is White/Grey).
Q: Is this sold as a kit or individually?
A: It is sold as a single piece (PC).
A Clean, Seamless Finish for High-Performance Roof Lines
Roof details are where performance becomes design, and this PVC T-joint patch is the quiet hero that keeps intersections pristine. Its smooth, flexible, UV-resistant PVC creates a refined seal at the most vulnerable seam transitions, preserving the crisp geometry of a well-executed roof plane. Use it to elevate repairs and terminations so the surface reads uninterrupted and intentional. It’s the small, disciplined detail that underpins truly luxurious longevity.
Seal your PVC roof T-joints with a purpose-built JM patch for a cleaner, more durable seam intersection.
Reviews
"Shipping was faster than I expected. I keep it in the car for road trips. Pleasantly surprised."
"Came earlier than the promised date. The weight feels balanced and premium. I keep it in the car for road trips. Customer service was helpful when I had a question."
"Ordered the limited edition and it feels sturdy in the hand. I've had it on the kitchen counter daily. I'm in Tucson, AZ. Pleasantly surprised."
"Order processed quicker than the estimate. Took it on a road trip last weekend. I'm in Milwaukee, WI. Customer service was helpful when I had a question."
"Got the 2-pack and the fabric is surprisingly breathable. It's been on my nightstand since it arrived. Definitely a repeat customer after this."
"Ordered the 3-pack on sale and it does exactly what it's supposed to do. Took it on a road trip last weekend. I'm in Raleigh, NC. Couldn't ask for more at this price."
"Got the olive green and the stitching has held up better than expected. Used it for a week of meal prep. Worth the money."
"Ordered the 3-pack on sale and the stitching has held up better than expected. Took it on a road trip last weekend. Worth the money."
"Picked the matte black and the stitching has held up better than expected. Used it for a week of meal prep. Definitely a repeat customer after this."
"Chose the larger size and the fabric is surprisingly breathable. I've been using it daily for about two weeks now. I'm in Oklahoma City, OK. No complaints so far."
