Brick Veneer

FlexLock can be used in backup wall application when a waterproof veneer is used such as brick or cultured stone. This would employ traditional weep holes and rope wicks.

The FlexLock Wall System

The FlexLock Wall System

Guides

Cercorp Initiatives Inc.

Developing Innovative Solutions in the Building Industry

Water Abatement

Polyurethane Foam

Another alternative for water abatement is the use of polyurethane foam. This product, which is installed in liquid form, can be used to fill the cores much like the Integra System. It increases water resistance and thermal transfer. Should be used with elastomeric coatings.

Water Abatement Strategies

Although interior partition walls, fencing, and soundwalls can be used in a bare wall application, exterior applications will require some water abatement strategy.

Surface Bonding

For exterior applications, cementitious coatings, stucco, or EIF System will provide excellent water protection. One system tested by Cercorp is Quickwall Surface Bonding Cement. Unlike stucco, this is a one-coat cementitious material that leaves a smooth attractive surface much like EFIS. Cercorp conducted an ASTM E 514 water penetration tests on the material at the NCMA lab. The test revealed that this coating withstood 5.5 inches of rain per hour, for 24 hours at 65 mph of constant wind. This is six times the exposure required by ASTM E 514.

Elastomeric Coatings

Another strategy that can be used is a high-build elastomeric coating applied on the outside of the wall. Products like Sherwin-Williams ConFlex XL A5-800 Series is a coating designed to resist wind driven rain on masonry products. The high-build characteristic enables it to fill small openings sealing the bed and head joints. Cercorp, working with Sherwin-Williams, conducted an ASTM E-514 tests at the NCMA lab. The test concluded that the FlexLock Wall system resisted water penetration like a standard CMU wall.