StructGuard TS structural sheathing features enhanced moisture resistance and the addition of anti-microbial protection. In addition, the permeability of StructGuard TS helps keep the wall cavity dry by allowing condensed water vapor to escape through the sheathing and further reducing the chance of mold- and moisture-related damage.
Each panel is composed of an enhanced mold- and water-resistant core encased in mold- and water-resistant facers on both sides. StructGuard TS has the TemShield Mold Protection system, which provides a significant degree of mold resistance compared to untreated panels.
StructGuard TS was tested for mold resistance per ASTM D3273,* the standard test of mold resistance, and scored a 10 out of a possible 10 in laboratory evaluations. Its resistance to water absorption was tested per ASTM C473. And it was shown to resist water penetration, as tested per ASTM E331, when installed using foil tapes (Polyken 626-35 and 4" Window Wrap by MFM Building Products) along all exposed joints.
*Note: The ASTM D3273 lab test may not be applicable to the actual performance of building materials. No material may be labeled mold proof, and resistance to mold growth depends on many factors. Prolonged exposure to moisture may cause mold and mildew to grow on any surface. Therefore, in order to maximize the mold and mildew resistance of a material, it is essential that good design, handling and construction practices be implemented. This involves avoiding water exposure during all phases of storage, handling, shipping, installation and after installation is complete. See GA238 for more information.

