AP Foil-Faced Foam Sheathing

With exceptional heat, moisture and air control, Johns Manville AP™ Foil-Faced Polyiso Foam Sheathing eliminates all major thermal bridges that cause heat loss when installed correctly.

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Data Sheet

SDS

Product Guide

Johns Manville AP™ Foil-Faced Polyiso Foam Sheathing boards are available in R-Values up to 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 maximium wall and worksite efficieny.

Advantages

Thermally Efficient: Effective resistance to heat transfer, with R-values up to R-28.
Water-Resistive Barrier: Meets the ICC-ES AC71 acceptance criteria.
Vapor Barrier: Class I vapor retarder at one inch.
Air Barrier: Meets the Air Barrier Association of America boardstock criteria, when properly installed.
Lightweight: Easy to handle and may be cut with a utility knife or saw.

ASTM Standards	ASTM C1289	Type I, Class 1
Flame Spread	ASTM E84	4": ≤ 25
Smoke Development	ASTM E84	≤ 450
Water Vapor Transmission	ASTM E96	0.05 perms (3 ng/Pa-s-m²)
Compressive Strength	ASTM D1621	≥ 16 psi (110 kPa)
Water Absorption	ASTM C209	0.1% volume
Service Temperature		-100 to 250°F
R-Value Per Inch		6.0

JM Foam Board Video

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Polyiso Continuous Insulation Wall Systems: The Perfect Wall

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AP Foil-Faced Foam Sheathing