Masonry has proven itself to be one of the most durablebuilding materials available. Three common types of masonry wall systems are cavity walls, veneer walls, and
composite (barrier) walls. The main issue when designing a quality wall system is controlling water that penetrates the wall system.
A successful system uses flashing to perform two functions: to prevent water penetration at copings and below openings, and to direct any water that has penetrated
the wall back to the outside above openings and at the wall base. The flashing strategies herein are tried and true techniques which can help create a long lasting, durable masonry wall system