Johns Manville TPO T-Joint Patch, Gray, Box of 100

These Johns Manville TPO T-joint patches are pre-cut grey patches used to cover T-joints in TPO single-ply seams. The sell unit is a box of 100 pieces. They help simplify seam detailing where three membrane layers meet.

Key Features:

• Pre-cut patches: Pre-cut shapes save time at T-joint intersections in TPO seams.
• TPO material: Made of TPO for compatibility with TPO membranes.
• Grey color: Supplied in grey to blend with grey TPO field membrane.
• Box of 100: Each order unit contains 100 patches.
• Seam detailing: Used to ease and reinforce seam intersections during membrane installation.

Specifications Table:

Fit and Compatibility:

For use with TPO single-ply membranes; not for PVC systems. Install with compatible TPO welding equipment sold separately.

Frequently Asked Questions (FAQ):

Q: How many patches are in a box?
A: Each box contains 100 gray TPO T-joint patches.

Q: Where are T-joint patches used?
A: They cover the intersection where a seam end or overlap meets another seam, easing the joint before welding.

Q: Are they weldable?
A: Yes, they are TPO and are hot-air welded into place.

Q: Can I use them on PVC roofing?
A: No, they are TPO and should be used only with TPO membranes.

Q: What color are they?
A: Gray.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Keep a box of T-joint patches on every TPO crew’s cart; patching intersections before welding seams is faster and more consistent than cutting in place. Match grey patches to grey membrane so finished seams stay uniform.

Hot-air welding equipment is very hot; wear heat-resistant gloves and follow the welder manufacturer’s safety instructions.

Stock your TPO crew with the Johns Manville TPO T-Joint Patch box of 100.