IAPMO UES EC 021
Full Name
IAPMO UES EC 021 – Evaluation Criteria for Anchored Masonry Veneer System with Polystyrene Foam Plastic Backing
Scope
IAPMO EC 021 outlines the evaluation criteria for anchored masonry veneer systems with polystyrene foam plastic backing. This standard, developed by the International Association of Plumbing and Mechanical Officials (IAPMO) Uniform Evaluation Service (UES), focuses on assessing the suitability and performance of these systems for use in construction.
The scope of EC 021 includes:
- Purpose: to establish minimum requirements for anchored masonry veneer systems with polystyrene foam plastic backing.
- Applicability: it applies to systems consisting of masonry units (concrete facing brick, clay facing brick, or precast stone units), polystyrene foam plastic backing board, steel anchor system, and mortar. These systems are typically used as exterior cladding for buildings, providing both aesthetic and functional benefits.
- Performance requirements: it defines the minimum performance standards for these systems, including requirements for wind load resistance, seismic load resistance, water resistance, thermal resistance, and durability. This ensures that the systems can withstand various environmental conditions and maintain their structural integrity over time.
- Testing procedures: it outlines standardized testing methods to evaluate the performance of anchored masonry veneer systems with polystyrene foam plastic backing under various conditions, such as wind loads, seismic forces, water penetration, and thermal cycling.
- Installation requirements: it provides guidance on the proper installation of these systems, including requirements for substrate preparation, anchor spacing, mortar application, and joint finishing. Proper installation is crucial for ensuring the long-term performance and durability of the system.
By adhering to IAPMO EC 021, manufacturers can ensure that their anchored masonry veneer systems with polystyrene foam plastic backing meet the necessary standards for safety and performance. Builders and designers can also refer to EC 021 to select appropriate systems for their projects and ensure compliance with building codes and regulations.
Keywords
anchored masonry veneer; polystyrene foam plastic backing; masonry units (concrete facing brick, clay facing brick, precast stone units); steel anchor system (wire ties, corrugated ties, adjustable ties); mortar types (type N, type S, type M); wind load resistance; seismic load resistance; water penetration resistance; air leakage resistance; thermal resistance (R-value); compressive strength; flexural strength; shear strength; tensile bond strength; durability (freeze-thaw resistance, corrosion resistance); structural analysis; finite element analysis (FEA); building codes (IBC, IRC); Masonry Standards Joint Committee (MSJC); IAPMO UES; evaluation criteria