Tag Archives: 04 05 23.19?Masonry Cavity Drainage

Weep Now or Weep Later: Moisture management and risk zones for masonry

All images courtesy Masonry Technology Inc.

Weeps should create an opportunity for the liquid water that has drained down to the top surface of a flashing to exit the core or cavity of the masonry wall on the top surface of the flashing. Unfortunately, numerous unfortunate conditions have occurred because of incorrect uses of materials and devices, or detailing errors. This article examines what design professionals need to know about allowing moisture to escape their masonry.

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Weep Now or Weep Later: Of Ropes and Tubes

All images courtesy Masonry Technology Inc.

One of the first commonly employed weep details was the sash cord or ‘rope’ weep. In some cases, this detail was expanded with sections of the sash cord laid in the cavity and then extended through the wall, usually at a head joint. In other cases, the sash cord was fastened vertically up the backside of the cavity. In yet other instances, it would be pulled out of the wall, leaving a hole through the head joint or bed joint of mortar.

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