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Manufacturer Varies by Location High-Density ISO Cover Board 0.5 in. x 4 ft. x 4 ft. White Polyiso Roofing Panel
Regular price $17.15Orders start at $399 — combine any items to reach the minimum. Learn more
Manufacturer Varies by Location High-Density ISO Cover Board 0.5 in. x 4 ft. x 4 ft. White Polyiso Roofing Panel
This high-density polyisocyanurate cover board is a 0.5 in. x 4 ft. x 4 ft. white panel installed over roof insulation to create a suitable substrate for membrane attachment and improve overall roof system durability. It protects underlying insulation from roof traffic and can support rooftop PV installations. One panel per unit.
Key Features:
- Membrane substrate: Provides a suitable surface for the attachment of the roof membrane.
- Traffic protection: Protects the underlying insulation from roof traffic.
- PV-ready: Can allow the roof area to be used for renewable energy systems such as rooftop solar PV.
- Lightweight: Lightweight construction supports faster installation.
- Water resistant: Superior water resistance compared with standard cover board options.
- Easy to cut: Cuts easily with no special tools required.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Manufacturer Varies by Location |
| Sell unit | 1 board, 0.5 in. x 4 ft. x 4 ft. |
| Product line | High-Density ISO Cover Board |
| Material | High-density polyisocyanurate |
| Color / finish | White |
| Dimensions | 0.5 in. x 4 ft. x 4 ft. |
| Coverage per unit | 16 sq. ft. per board |
| Pack quantity | 1 board |
| Intended use | Cover board substrate for membrane attachment over roof insulation |
Coverage & How Much You Need:
Each 4 ft. x 4 ft. board covers 16 sq. ft. of roof area. Divide the total roof area by 16, and add a small allowance for cuts and layout, to determine board count.
Fit and Compatibility:
Designed for commercial low-slope roof assemblies, laid over polyiso or other approved insulation and under the membrane. It works with the membrane adhesives, fasteners and fastening patterns specified by the roofing system manufacturer; verify attachment requirements before installation.
Frequently Asked Questions (FAQ):
Q: What size is each board?
A: Each board is 0.5 in. thick and measures 4 ft. x 4 ft., covering 16 sq. ft.
Q: What does a cover board do?
A: It provides a substrate for membrane attachment, enhances roof durability, and protects the insulation below from roof traffic.
Q: Can it support rooftop solar?
A: Yes, cover boards can allow the roof area to be used for renewable energy systems such as rooftop PV.
Q: How is it cut?
A: It is easy to cut and requires no special tools.
Q: Is it water resistant?
A: The board offers superior water resistance per the manufacturer's product description.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
A high-density ISO cover board is a common choice when you need a durable, lightweight substrate under single-ply membranes without the weight of gypsum board. Stagger joints between rows and follow the membrane manufacturer's fastening or adhered attachment pattern. Confirm fastener pull-out values and board thickness against the system specification before ordering.
Handle panels with care on the roof deck, keep board edges clear of walkways, and follow site fall-protection requirements during installation.
Add this high-density ISO cover board to your roof assembly for a durable membrane substrate.
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