ISO/NP 26956

Foam-Core Substrate Boards for Ceramic Tile Installations — Test Methods and Performance Requirements

Scope

This proposed International Standard specifies test methods and performance requirements for polymeric foam core substrate boards used beneath ceramic tile finishes. It applies to boards with:

• Foam cores such as XPS, EPS, PU, or similar;
• Cementitious, mineral, or polymer modified facings and thermoplastic-based plastic sheets;
• Intended application as tile backer boards, wet area construction panels, or substrates for bonded waterproofing systems.

Excluded:

• Products used solely as thermal insulation;
• Boards without facers;
• Panels not intended to receive ceramic tile finishes;
• Non foam core board products.