Stimulus

STYROFOAM SIS™

STYROFOAM SIS

SIS™ Product Overview

The innovative STYROFOAM SIS™ Brand Structural Insulated Sheathing from Dow combines three functions in one product:
  1. Structural lateral bracing and transverse loads
  2. Significant insulation performance
  3. Water-resistive barrier
A first-of-its-kind product, STYROFOAM SIS™ Brand Structural Insulated Sheathing is the result of research, development and rigorous testing. And professional builders have used it with strong success.
Ready to make a difference without a big change? We're braced for your questions.

Wall Bracing Resource Center

SIS House

Dow has summarized the "rules" related to Braced Wall Lines under the International Residential Code to help you place STYROFOAM SIS™, as well as calculate the amount of sheathing needed for your residential project. See the Wall Bracing Resource Center.
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