THERMAX Wall System - System Overview

A Systematic Approach

The THERMAX™ Wall System is more than an insulated wall – it's a systematic approach to achieving efficiency at every level: simplified design, streamlined construction and optimized energy consumption for a reduced carbon footprint. Dow's three-in-one system with insulation, flashing and air barrier meets all applicable IBC and ASHRAE requirements.

Each component of the THERMAX™ Wall System was selected to serve a particular function in the wall assembly. Together, these three simple parts – insulation, flashing and air barrier – work as one integrated system.

Continuous Insulation	Flashing	Air Barrier
THERMAX™ (ci) Exterior Insulation	WEATHERMATE™ Straight Flashing	STYROFOAM™ Brand SPF (CM Series)
Backed by more than 30 years of proven performance	Helps protect the wall assembly from moisture entry	Effectively blocks air infiltration by filling gaps, cracks and penetrations
Features distinct free-rise technology for better product consistency, durability and fire performance	Delivers outstanding adhesion, and maximum quality and performance over a wide temperature range	Offers exceptional moisture management and elimination of air infiltration in the wall when properly applied
Class A fire rated		Enhances system insulation value
Complies with IBC and NFPA 285-[06]		Class A fire rated and complies with IBC and NFPA 285-[06] when used as part of the THERMAX™ Wall System
An integral, durable acrylic-coated aluminum facer provides a drainage plane and water-resistive barrier		Three formulas for ambient/substrate temperatures from 30°F to 120°F extend the spray season
Provides one of the highest R-values available (R-6.5 at one inch)⁽¹⁾
Six-month exposure rating

⁽¹⁾ Stabilized R-value @ 75°F mean temperature determined in accordance with ASTM C518. R-value expressed in ft²• h•°F/Btu.

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