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TRI-BUILT 4 ft. x 4 ft. Tapered Polyiso Rigid Roof Insulation Panel, 1.50-2.50 in. (Y Profile)
Regular price $32.44Orders start at $399 — combine any items to reach the minimum. Learn more
TRI-BUILT 4 ft. x 4 ft. Tapered Polyiso Rigid Roof Insulation Panel, 1.50-2.50 in. (Y Profile)
This TRI-BUILT Y-profile tapered ISO panel measures 4 ft. x 4 ft. and tapers from 1.50 in. to 2.50 in. thick. Sold as one panel weighing about 6.1 lb. It builds mid-range slope in a HUN tapered polyiso roof assembly, sloping water toward drains.
Key Features:
- Y Taper Profile: Tapers from 1.50 in. to 2.50 in., a 1 in. taper at mid thickness.
- Polyiso Core: Rigid polyisocyanurate foam insulation.
- 4x4 Foot Panel: Each panel covers 16 sq ft of roof deck.
- Mid-Range Slope: Fits the middle rows of a multi-profile taper layout.
- Lightweight: About 6.1 lb per panel for easy handling.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | TRI-BUILT |
| Manufacturer model | TB-317255 |
| Sell unit | 1 panel, 4 ft. x 4 ft., 1.50-2.50 in. tapered |
| Product line | TRI-BUILT HUN tapered polyiso |
| Profile / style | Y tapered panel |
| Dimensions | 4 ft. x 4 ft., 1.50-2.50 in. tapered thickness |
| Thickness | Y [1.50-2.50 in.] |
| Coverage per unit | 16 sq ft per panel |
| Material | Polyisocyanurate (ISO) rigid foam |
| Weight | 6.08 lb per panel |
| Intended use | Low-slope roof insulation providing positive slope |
Coverage & How Much You Need:
One panel covers 16 sq ft. Y panels take the 1.50 in. thin edge from adjacent X rows and hand off the 2.50 in. thick edge to C rows in a continuous slope plane.
Fit and Compatibility:
Part of the TRI-BUILT HUN tapered polyiso system; use with Q, X, and C profiles and flat polyiso boards as the design requires. Adhesives and fasteners sold separately.
Frequently Asked Questions (FAQ):
Q: What taper is the Y profile?
A: It tapers from 1.50 in. to 2.50 in. across the 4 ft. panel.
Q: How many panels per square?
A: One square (100 sq ft) needs about 6.25 panels; order to the taper layout, not just area.
Q: How does Y connect to other profiles?
A: Its thin edge matches X-profile thick edges and its thick edge matches C-profile thick ends per the series layout.
Q: How is it installed?
A: Thin edge low, thick edge high, adhered or mechanically fastened per the roofing specification.
Q: How heavy is it?
A: About 6.08 lb per panel.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Y panels bridge X and C rows in a standard HUN taper scheme, keeping the 1 in. per 4 ft. taper consistent while stepping thickness up the slope. Dry-lay the field to confirm edges plane out before adhering anything. For saddles and crickets around drains, mix profiles per the manufacturer's layout guidance.
Follow the membrane manufacturer's requirements for substrate condition before adhering insulation over any deck.
Add the TRI-BUILT Y-profile 1.50-2.50 in. tapered polyiso panel to your tapered insulation package.
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