Johns Manville AP™ Foil-Faced Foam Sheathing
Johns Manville AP Foil-Faced Polyiso Foam Sheathing boards are available up to RSI 5.09 (R-28) and offer a reflective foil facer on one side and a non-reflective facer on the other. AP Foil provides exceptional heat, moisture and air control and, when installed correctly, eliminates all major thermal bridges that cause heat loss. The rigid board sheathing has a one-inch layer of continuous insulation for maximum wall and worksite efficiency.
- Thermally efficient: effective resistance to heat transfer, with R-values up to R-28 (RSI-5.09).
- Water-resistant barrier: meets NBC acceptance criteria CCMC-13104-L.
- Vapour barrier: Class I vapour retarder at 25mm (1”).
- Lightweight: easy to handle, and can be cut with a utility knife or saw.
BUILT GREEN® Checklist
This product may help earn points under the following checklist item:
1.2.2 Replace exterior wood sheathing with insulating sheathing and structurally required metal bracing.
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