Masonry Veneer Manufacturers Association -

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

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

(e.g., water leaks, efflorescence)? Differences between Adhered and Anchored veneer? Installation Guidelines for Adhered Concrete Masonry Veneer A space must be created behind the mortar

To make this guide more actionable for you,g., exterior wood stud, cement board)? Products should meet ICC-ES Acceptance Criteria 275 (AC275)

Products should meet ICC-ES Acceptance Criteria 275 (AC275).

The MVMA guidelines are designed to prevent moisture intrusion and ensure long-term structural integrity.

A weep screed with a minimum vertical attachment flange of 3.5 inches is required at the base of the wall to drain moisture. This should be placed at least 4 inches above earth or 2 inches above paved surfaces. Lath Requirements: Self-furred metal lath (minimum 2.5 lb/ yd2y d squared