amongst the numerous tray/pan offerings. This would help to erase skepticism that still lingers among some in the design and construc- tion community. Towards establishment of an ANSI standard Maribel Campos, Director of Standards, ICC-ES PMG (International Code Council Evaluation Service for Plumbing Mechanical and Fuel Gas), in particular has been a driving force in her efforts to estab- lish an ANSI standard for a “field fabricated tiling kit.” In her previous role at IAMPO (International Association of Mechanical and Plumbing Officials), and in her current position at ICC, she has worked with industry contacts to create an ANSI standard that includes prefabricated foam shower pans/trays as part of the system. Campos’s efforts have their origin in IAMPO standard PS106, which has a number of test criteria and requirements. Perhaps one of the most critical and scrutinized portions of this standard focuses on the means and methods to evaluate and assign com- pressive strength and point loading characteristics of these foam trays. Campos’s efforts to develop an ANSI standard are now part of a committee review for a new ANSI standard for a field fabricated tiling kit. Elements of IAMPO PS106 are part of a proposed ANSI standard for these products. As with any proposed ANSI standard, divergent, opinionated, and sometimes differing view- TECHNICAL FEATURE –––––––––––––––––––––––––––––––––––––––––––––––– A bonded membrane meeting ANSI 118.10 was designed to be used as the waterproofing for this molded EPS product from Europe. Concerns about point loading and compression of EPS foam substrates has led to the introduction of reinforced/hybrid foam trays/pans. 52 TileLetter | May 2018