What is rack test and how does it apply to Thermo-ply® sheathing?
The strength of a sheathing material is commonly measured by RACKING RESISTANCE, which can be converted to shear strength. Thermo-ply® sheathing offers superior racking resistance to meet and/or exceed most building codes. ASTM E 72 is the standard test procedure for determining a sheathing’s value. Contact Berry Plastics Tapes and Coatings Division for further information (800) 345-8881.