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Parapet wall rebuilding

Parapet wall rebuilding in Chicago

A parapet is a low wall constructed above the roofline that usually spans around the perimeter of a building. Parapets may be purely aesthetic or primarily functional, such as hiding mechanical equipment or performing as a firewall.

 

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Example of deteriorated parapet wall

 

The top of a parapet wall is vulnerable to moisture penetration problems. Choosing an appropriate cap is an effective way to eliminate this condition. A variety of materials are available to cap off the wall, with limestone, terra cotta, hard-fired clay, or precast concrete preferred. These materials have thermal properties similar to those of brick and concrete masonry.