TOP302

 

folderedge.jpg
folderbar.jpg

[HOME] [TECH LIBRARY] [CONSTRUCTION] [Brick on Wood]

Supporting Exterior Brick Veneer on Wood Construction

Brick on Wood

Related External Links

    BIA Tech Notes

    NCMA Techical Notes

 

In residential construction, brick veneer is one of the highest quality and most durable cladding materials available. While a single wythe of brick can perform as both the structure and finish in residential construction, it is most commonly used as a veneer anchored to wood frame construction. The design and detailing of this system is straightforward and widely understood for most standard applications. Some applications, however, require special attention and detailing and construction to achieve the high level of quality and durability homeowners have come to expect from masonry construction.

 

When designing with this system, one must remember the nature of this veneer/backup relationship and the inherent water management strategy. Typically, the brick veneer wall rests directly on the foundation, supporting it's own dead load and is anchored to the backup with ties for lateral support only. A 1" cavity separates the two systems and performs as a drainage channel allowing entrant water to drain down the inside face of the veneer and exit at flashing locations. In certain design situations, like those illustrated above the veneer cannot be extended down to the foundation.

A vertical expansion joint must, by code, be detailed in the brick veneer between the portion of brick that is supported by the wood

structure and the portion supported by the foundation. This is to accommodate any differential movement that may occur.

This example below shows a roof wall intersection where there is brick above a roof.

 

brickwood-2010a

The situation below shows the use of steel lolley columns and a steel beam (designed for l/600 deflection) to support the brick veneer.  This condition can arise in any building where a brick wall exists above a space that requires clear open spans like in a single family garage. The condition below shows a low roof intersecting the brick wall above.

A vertical expansion must be detailed in the brick veneer between the portion of brick that is supported by the wood structure and the portion supported by the foundation. Two courses of 4" concrete masonry are shown in this example. Because this part of the wall will not be visible, it is less costly to build a block wall in the hidden area. Notice the building paper lapping over the flashing , this is to ensure that any water running down the building paper will end up on the flashing and not behind it.

brickwood-2010b

Picture

{HOME} {TECHNICAL LIBRARY} {INDUSTRY DIRECTORY}