Masonry Veneer Manufacturers Association 〈2025〉

A space must be created behind the mortar scratch coat to allow for drainage.

Disclaimer: Always prioritize the specific product manufacturer's installation instructions, which may have additional requirements beyond the general MVMA guidelines. masonry veneer manufacturers association

Products should meet ICC-ES Acceptance Criteria 275 (AC275). A space must be created behind the mortar

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Manufacturers complying with MVMA standards generally ensure their products meet or exceed: Often above 1800 psi. Water Absorption: Must be managed to prevent damage.

Proper ground clearance and flashing are essential at all intersections to prevent damage, such as from efflorescence. Best Practices & Innovations

For increased moisture management, particularly in high-humidity areas, the MVMA encourages the use of rainscreen systems (drainage mats) to improve air space, according to Consumers Concrete.