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Mule-Hide Tapered Polyiso Insulation Board 4 ft x 4 ft Yellow Polyisocyanurate Foam
Regular price $18.19Orders start at $399 — combine any items to reach the minimum. Learn more
Mule-Hide Tapered Polyiso Insulation Board 4 ft x 4 ft Yellow Polyisocyanurate Foam
This is Mule-Hide tapered polyisocyanurate insulation board supplied in 4 ft x 4 ft sheets with a yellow facer, sold per sheet. Six slope profiles are offered, ranging from 1/8 in. per foot crickets to 1/2 in. per foot tapered panels, to build positive drainage in low-slope roof systems. Choose the profile that matches your slope plan and layer it under the roof membrane.
Key Features:
- Positive drainage: Tapered profiles create slope that directs water off a low-slope roof assembly.
- Multiple slopes: Offered in 1/8 in. per foot profiles (AA, A, B, C) and compound crickets (Q and Y) spanning 1/2 in. to 2.5 in. total taper.
- Rigid polyiso core: Polyisocyanurate foam provides a rigid, lightweight insulation layer.
- 4 x 4 format: Compact 4 ft x 4 ft sheets are easier to stage and position on the roof than large boards.
- Yellow facer: Each board carries a yellow facer consistent across the line.
- Per-sheet ordering: Sold as individual sheets so you can order exactly the quantity a slope plan requires.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Mule-Hide |
| Sell unit | 1 sheet, 4 ft x 4 ft |
| Product line | Mule-Hide Tapered Polyiso Insulation Board |
| Available profiles | AA 1/2-1.0, A 1.0-1.5, B 1.5-2.0, C 2.0-2.5, Q 0.5-2.5, Y 1.5-2.5 |
| Material | Polyisocyanurate foam |
| Color / finish | Yellow |
| Nominal size | 4 ft x 4 ft |
| Width | 4 ft |
| Length | 4 ft |
| Sell unit type | Sheet |
| Intended use | Tapered insulation and crickets for low-slope roof assemblies |
Coverage & How Much You Need:
One sheet covers 16 sq ft of roof area. Size a tapered job from a slope layout: a 4 ft x 4 ft AA panel (1/2-1.0 profile) yields a 1/8 in. per foot slope across the run, while Q and Y crickets fill valley and transition areas over their stated thickness ranges.
Fit and Compatibility:
Use under approved low-slope membrane systems as the insulation or cricket layer, typically layered over flat polyiso base insulation. Fastening and attachment method should follow the membrane manufacturer's requirements; boards are sold individually with no adhesive or fasteners included.
Frequently Asked Questions (FAQ):
Q: What is included with each order?
A: Each order is one 4 ft x 4 ft tapered polyiso sheet in the profile you select; no fasteners or adhesive are included.
Q: Which profile should I choose?
A: Match the profile to your slope design: AA, A, B and C are single-slope panels at progressively higher tapers, while Q and Y are compound-taper crickets for valleys and transitions.
Q: How do I calculate how many sheets I need?
A: Each sheet covers 16 sq ft; lay out crickets and tapered zones on the roof plan, then divide each zone's area by 16 and round up.
Q: Can this be used as the only insulation layer?
A: Tapered board is typically laid over flat polyiso base insulation; confirm the total assembly with the membrane manufacturer's specification.
Q: How is it attached?
A: Attachment method is not stated on this listing; follow the roofing system manufacturer's approved fastening or adhering requirements.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Tapered polyiso is most economical when the layout uses standard 4 ft x 4 ft panels with crickets reserved for true drainage trouble spots like valleys and inside corners. Keep membrane seams off the high edges of cricket saddles and stage the boards dry-side down until they are fastened. For sumps and longer runs, pair these crickets with flat polyiso base stock so the tapered layer does all the slope work.
Handle with cut-resistant gloves and eye protection; foam board edges and corners are sharp and boards can shift underfoot on smooth decks before attachment.
Order Mule-Hide tapered polyiso insulation board in the slope profile your roof plan calls for.
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