1. Scope

Keywords

Rationale

A test method for walkability--most recently--comes from the development of the Synthetic Underlayment standard (ASTM D8257). Negatives about slip resistance of these products were unresolved until a TG was formed to develop a test method for slip resistance of steep-slope underlayments. This is important for manufacturers and contractors for rooftop safety of workers. Manufacturers will be able to list Walkability / Slip Resistance as a physical property of underlayments so users of products can compare Walkability from product to product.