ASTM manufactured stone and masonry veneer subcommittee provides guidance for building industry
ASTM International Committee C15 on Manufactured Masonry Units has created a new subcommittee, C15.11 on Adhered Manufactured Stone Masonry Veneer. The purpose of C15.11 is to develop and maintain product specifications and installation guidelines for adhered manufactured stone masonry veneer.
According to Brenda Harris, chair of the new subcommittee, adhered manufactured stone masonry veneer has recently been defined by Committee C15's executive subcommittee as "a lightweight, architectural non-load bearing product. It is a wet-cast blend of cementitious materials, lightweight and other aggregates, iron oxide pigments and admixtures."
Harris says that the subcommittee was formed because there are currently no ASTM standards for adhered manufactured stone masonry veneer.
"The lack of a uniform and nationally recognized product standard and the lack of specific and appropriate installation procedures for this product have allowed untested and substandard products to find their way into both residential and commercial construction," said Harris. "The development of these standards would create the critical definitions and procedures needed by project owners, as well as design and installation professionals."
The first proposed standards of the subcommittee will be prepared with the following in mind: