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Johns Manville Invinsa Roof Board, 0.25 in. x 4 ft x 8 ft Protective Roof Board
Regular price $35.60Orders start at $399 — combine any items to reach the minimum. Learn more
Johns Manville Invinsa Roof Board, 0.25 in. x 4 ft x 8 ft Protective Roof Board
This is a Johns Manville Invinsa roof board, a resilient 0.25 in. thick panel measuring 4 ft x 8 ft that protects roof insulation beneath the membrane. Each order unit is one board. It works with the membrane above as part of a JM commercial roof system for maximum performance and longevity.
Key Features:
- Resilient roof board: Invinsa is a resilient, lightweight roof board designed as an integral roof system component.
- Protects insulation: It provides a protective layer for the roof insulation below the membrane.
- Full 4x8 sheet: The 4 ft x 8 ft sheet covers 32 sq ft with fewer joints than smaller boards.
- 0.25 in. thickness: A slim 0.25 in. profile adds protection without significant build-up.
- Code-listed: UL Classified, FM Approved, and Miami-Dade County Approved to ASTM C1289, Type II, Class 4.
- Lightweight: Each board weighs about 13 lb for easy handling and fast installation.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Johns Manville |
| Sell unit | 1 board, 0.25 in. x 4 ft x 8 ft |
| Product line | Invinsa Roof Board |
| Material | Gypsum-based roof board (ASTM C1289 Type II) |
| Dimensions | 4 ft x 8 ft, 0.25 in. thick |
| Thickness | 0.25 in. |
| Coverage per unit | 32 sq ft per board |
| Weight | 13 lb per board |
| Approvals | UL Classified; FM Approved; Miami-Dade County Approved; ASTM C1289, Type II, Class 4, Grades 1, 2, and 3 |
| Intended use | Protective roof board over insulation in low-slope roofing |
| Algae resistance | No |
Coverage & How Much You Need:
One 4 ft x 8 ft board covers 32 square feet. Divide the roof area by 32 to size the job, adding allowance for cut boards at edges and penetrations.
Fit and Compatibility:
Invinsa is installed between JM roof insulation and the roofing membrane within a JM system. Attachment fasteners, plates, or adhesives are specified per the roof assembly and sold separately.
Frequently Asked Questions (FAQ):
Q: What comes in one order?
A: One 0.25 in. x 4 ft x 8 ft Invinsa roof board, sold per piece.
Q: How much does one board cover?
A: One 4 ft x 8 ft board covers 32 square feet before cuts and waste.
Q: What does Invinsa do in a roof system?
A: It is a protective layer over the insulation that works with the membrane above for system performance and longevity.
Q: How is it attached?
A: Per the specified JM roof assembly, using fasteners and plates or approved adhesive; attachment components are ordered separately.
Q: Which standard does it meet?
A: It conforms to ASTM C1289, Type II, Class 4, and is UL Classified, FM Approved, and Miami-Dade County Approved.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Invinsa is JM's lightweight roof board for assemblies needing a resilient separator and cover layer over insulation, commonly specified in single-ply systems. Its 4x8 format speeds installation on open decks versus 4x4 boards. Always verify board grade and attachment requirements from the project spec before substituting thicknesses.
Wear cut-resistant gloves when scoring and snapping roof board; edges and dust require eye and respiratory protection per the SDS.
Add the Johns Manville Invinsa 0.25 in. roof board to your commercial roofing material list today.
Product Documents:
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