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United Asphalt Perlite Cant Strip, 4 in. to 18 in. Lengths x 1-1/2 in. Height
Regular price $45.50Orders start at $399 — combine any items to reach the minimum. Learn more
United Asphalt Perlite Cant Strip, 4 in. to 18 in. Lengths x 1-1/2 in. Height
United Asphalt Perlite Cant Strip forms an angled transition from the wall to the roof surface so the roofing membrane does not bend sharply at the corner. The lightweight perlite strip cuts easily and installs at parapets, walls and curbs. Sold per board in 4, 12 and 18 in. lengths, all 1-1/2 in. high.
Key Features:
- Angled Transition: Provides an angled transition from wall to roof surface so roofing material does not bend sharply.
- Lightweight Perlite: Perlite composition offers a lightweight, inorganic cant material.
- Easy to Cut: Cuts easily for fast fitting at walls, curbs and parapets.
- Three Lengths: Offered in 4, 12 and 18 in. lengths, each 1-1/2 in. high.
- Roof Detail Staple: Used under membrane terminations where the roof meets vertical surfaces.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | United Asphalt |
| Sell unit | 1 board |
| Product line | United Asphalt Cant Strip, perlite |
| Material | Perlite |
| Dimensions | Lengths of 4, 12 and 18 in.; height 1-1/2 in. on all items |
| Height | 1-1/2 in. |
| Available sizes | 4 in. x 1-1/2 in., 12 in. x 1-1/2 in., 18 in. x 1-1/2 in. |
| Intended use | Angled cant transition at wall/roof junctions under roofing membranes |
Coverage & How Much You Need:
Boards run 4 to 18 in. long with a 1-1/2 in. height and are butted end to end along the wall base. Divide the linear footage of the wall or curb by the board length to size the order.
Fit and Compatibility:
Installed beneath built-up, modified bitumen and single-ply membrane systems at wall, parapet and curb details. United Asphalt also offers a wood fibered cant strip for projects specifying that material instead of perlite.
Frequently Asked Questions (FAQ):
Q: What is included in an order?
A: One board of perlite cant strip in the selected length (4, 12 or 18 in.), all 1-1/2 in. high.
Q: How many boards do I need?
A: Measure the linear footage of the wall or curb and divide by the board length, adding allowance for cuts and waste.
Q: How is it installed?
A: Set the strip tightly into the deck-to-wall corner, typically in roofing mastic or adhesive, then apply the membrane over the cant per the system detail.
Q: How does perlite compare to wood fiber cant strip?
A: Both form the same angled transition; perlite is an inorganic, lightweight alternative offered by United Asphalt alongside the wood fibered version.
Q: Can it be cut on site?
A: Yes, cant strips are cut to fit on site; United Asphalt's cant strips are designed for easy cutting.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Perlite cant strips are the go-to where a specification calls for an inorganic cant or where moisture sensitivity of fiberboard is a concern. Bed them in mastic, butt the joints tightly, and keep the cant angle consistent along the run so membrane terminations lie correctly. Pair with compatible membrane flashing at parapets and curbs.
Handle with gloves and dust-appropriate care when cutting mineral-based strips, and follow roof jobsite fall-protection requirements.
Order United Asphalt Perlite Cant Strip for a durable, lightweight wall-to-roof transition.
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