How to develop strong brick veneer cavity walls

Brick veneer cavity walls are mostly recognized product which can be used at the exterior of different types of buildings. With its conventional, rugged aesthetic and tested performance, bricks become a perfect choice for commercial, institution, and multifamily residential structures.

While designing, detailing, and constructing a brick wall assembly, considerations should be given on various factors. Given below, some useful tips to maintain moisture control, thermal performance, integrity, and durability of brick walls.

Never skimp on flashing materials within the cavity. Conventional materials like copper, lead-coated copper, stainless steel are very expensive but they are considered as the most long-lasting and trustworthy options.

Plan for thermal expansion/contraction of brick and concrete. Brick assembles frequently integrate brick and concrete components, both of which are extended and compacted at various rates and in diverse conditions. Due to this detailing becomes complicated for horizontal and vertical expansion joints, shelf angles, and modifiable veneer anchors.

Choose the feeble mortar for the job. If the mortar is extremely rigid, adjoining bricks can’t be moved and result in producing cracks and spalls.

Arrange minimum one inch of air space behind brick veneer. This void space operates as the drainage cavity where water is headed downward to the flashing and weeps and out of the brick veneer. If open weeps are utilized, this air space also allows to discharge the cavity, facilitating the interior components to get dried instantly.

Get clear ideas on vapor flow direction, and detail accordingly. For normal buildings, the direction of water vapor flow will differ by season and often on every day, based on the climate.

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How to develop strong brick veneer cavity walls