North America – Exposed Roofs/Ceilings

THERMAX™ Polyisocyanurate Insulation products are used in exposed roof applications

Expose the Performance Above

When you have a beautiful – and energy-efficient ceiling – there’s no need to keep it under wraps.

THERMAX™ Polyisocyanurate Insulation products are used in exposed roof applications to help safeguard metal buildings with low humidity (less than 50 percent) against thermal loss and moisture buildup. Typical applications include factories, warehouses, agricultural structures, cold-storage facilities and parking garage ceilings.

THERMAX™ products provide exceptional thermal protection (R-value 6.5 at 1") when installed outside the metal roof framing – “C” purlin, “Z” purlin, bar joist or other frame – with the specified joint treatment to make a total insulation system.

THERMAX™ products provide fire resistance and can be left exposed to the interior in most metal building applications. All THERMAX™ products are pressure-washable with the exception of THERMAX™ Sheathing.

Project Specifications	Recommended Dow Solution
	U.S.
High R-value rigid foam insulation with fire resistance No separate thermal barrier required Excellent high temperature stability Washable surface	4 mil Embossed white thermoset-coated aluminum sheet facer on one side, 1.25 mil embossed aluminum facer on the other side Glass-fiber reinforced polyisocyanurate foam core for fire resistance Pressure-washable at 2000 psi Moderate impact resistance	THERMAX™ Heavy Duty Insulation
	16.5 mil Embossed white thermoset-coated aluminum sheet facer laminated to 1 mil aluminum on one side, 1 mil aluminum facer on the other side Glass-fiber reinforced polyisocyanurate foam core for fire resistance Pressure-washable at 2000 psi Heavy impact resistance For wall applications only	THERMAX™ Heavy Duty Plus Insulation
	1.25 mil White thermoset-coated embossed aluminum facer on one side, 1.25 mil embossed aluminum facer on other side Glass-fiber reinforced polyisocyanurate foam core for fire resistance Pressure-washable at 1000 psi Light impact resistance	THERMAX™ Light Duty Insulation
	1.25 mil Embossed aluminum foil facers on both sides Glass-fiber-reinforced polyisocyanurate foam core for fire resistance Pressure-washable at 1000 psi Light impact resistance	THERMAX™ Metal Building Board
	1 mil Radiant quality aluminum facers on both sides Glass-fiber-reinforced polyisocyanurate foam core for improved fire resistance	THERMAX™ Sheathing
	Enhanced Installation	FROTH-PAK™ Foam Sealant THERMAX™ White Foil Tape GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant¹ PVC Joint Closures: Clip Strip, Interlocking System or J-Channel

(1) Consult the label and Material Safety Data Sheet carefully before use.

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