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FlashCo FlashAccessory 4.5 in. White 60 mil Molded TPO T-Joint Cover
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FlashCo FlashAccessory 4.5 in. White 60 mil Molded TPO T-Joint Cover
The FlashCo FlashAccessory Molded T-Joint Cover is a 60 mil non-reinforced white TPO patch, 4.5 in in diameter, used to cover and seal intersections of three or more membrane layers, known as step-offs. Injection molded for uniform shape and reliable welds, it saves labor versus hand-cut patches. Standard packaging is 100 covers bagged and boxed.
Key Features:
- Seals step-offs: Covers and seals intersections of three or more TPO membrane layers, also known as step-offs.
- Uniform shape: Each T-joint cover is uniform in shape and size for consistent installs.
- Easy centering: Markings at four points make centering over step-offs easy and accurate.
- Labor saving: Saves labor time in comparison to field fabrication of hand-cut patches.
- Reliable welds: Injection molded with quality TPO for reliable welds.
- 60 mil non-reinforced TPO: Made from 60 mil non-reinforced TPO measuring 4.5 in diameter.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | FlashCo |
| Sell unit | 1 package of 100 T-joint covers |
| Product line | FlashAccessory Molded T-Joint Cover |
| Available colors | White |
| Available sizes | 4.5 in diameter |
| Material | Non-reinforced TPO |
| Thickness | 60 mil |
| Dimensions | 4.5 in diameter |
| Pack quantity | 100 covers per bagged and boxed standard package |
| Intended use | Covering and sealing TPO membrane step-offs (three or more layer intersections) |
Coverage & How Much You Need:
Each 4.5 in cover protects one membrane step-off; the standard 100-count package covers 100 T-joints. Plan one cover for every three- or four-way seam intersection in the field.
Fit and Compatibility:
Designed for TPO single-ply membrane roofing systems where three or more membrane layers intersect. Weld with standard TPO hot-air welding equipment; membrane and welding tools sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in the package?
A: The standard package is 100 T-joint covers, bagged and boxed.
Q: What size and thickness are they?
A: Each cover is 4.5 in in diameter and made of 60 mil non-reinforced TPO.
Q: Where do I use them?
A: Over intersections of three or more layers of TPO membrane, commonly called step-offs.
Q: How do they save time?
A: They are faster and easier to prepare and apply than hand-cut field patches, with four-point markings for accurate centering.
Q: Can they be heat welded?
A: Yes, they are injection molded with quality TPO for reliable welds.
Q: Will they work on EPDM?
A: The product is specified for TPO systems; the sources do not address other membrane types.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Keep a bag of molded T-joint covers on every TPO tear-off and recover job; they eliminate the slowest, most error-prone field patch. Align the four-point markings over the step-off, clean the surface, then weld with a small hand-held hot air tool, probing the edges when cool. Use them on any seam intersection where three laps meet to prevent pinhole leaks.
Hot-air welding creates very hot airflow and melted TPO; wear heat-resistant gloves and eye protection and keep the tool away from flammable materials.
Stock up on FlashCo FlashAccessory molded TPO T-joint covers and speed up your next TPO install.
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