Masonry Magazine March 2012 Page. 35
TO DEVICE SARET PERML PRO BARRIER SHEET WATERP
Figure 5. Metal or flexible adhesive membranes can be used to create a dam to prevent water from flowing out of the drainage cavity and into voids at window and door jambs (see Figure 6).
Window sills and door thresholds
LOCATIONS BELOW windows and doors-particularly at areas directly below the jambs - are vulnerable to water infiltration.
Figure 6. These are locations where individual framing members of windows and doors intersect at an opening in the masonry veneer. Flashings at these locations should have an upturned back leg to prevent water from flowing off the back of the flashing. An end dam should also be provided to prevent water from flowing.
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www.masonrymagazine.com
READER SERVICE #148
March 2012
MASONRY 33