Flashing for Construction Alexandria VA

Most of the water that enters masonry walls in Alexandria gets in at the parapet, roof, and windows. So it's critical that all these spots be flashed properly. To prevent water damage, the entire masonry wall must be designed as a system. Here are tips for flashing a typical masonry wall from top to bottom.

The Engineering Groupe
(703) 670-0985
13580 Groupe Drive, Suite 200
Woodbridge, VA

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(703) 401-3141
6537 riefton ct.
alexandria, VA
 
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(571) 389-0798
5604 Vine St
Alexandria, VA
 
LHI & Design
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6537 Riefton ct.
Alex., VA
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Sigal Construction Corporation
(703) 302-1500
2231 Crystal Dr.
Washington, DC
 
Probuilt Deck And Fence
(301) 474-3550
5110 Roanoke Place, Suite 106
College Park, MD

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6537 Riefton Ct
Alexandria, VA
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Agua-Man
(571) 214-8339
3305 king street
alexandria, VA
 
Bozzuto Construction
(703) 379-2402
4220 Campbell Ave
Arlington, VA
 
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605 Raleigh Pl., SE
Washington, DC
 
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Flashing for Construction

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Source: Masonry Construction
Publication date: March 1, 1991

By Christine Beall

Abstract: Most of the water that enters masonry walls gets in at the parapet, roof, and windows. So it's critical that all these spots be flashed properly. To prevent water damage, the entire masonry wall must be designed as a system. Here are tips for flashing a typical masonry wall from top to bottom.IN THE PARAPETExposed on both sides, parapets face severe exposure to wind-driven rain. Parapets are thus a primary source of water entering the wall. To prevent water entry, cap parapets with a cast stone, natural stone, terra-cotta, or metal coping. Slope copings so they drain toward the roof. Place through-wall flashing in the bed joint immediately below the coping or metal cap.AT SHELF ANGLESAt the roofline, install a shelf angle and flashing to separate the parapet from the wall below. Flashing should also be installed at each shelf angle throughout the height of the wall. Extend the flashing from the backup through the exterior wythe. To allow moisture to escape, in the first course above the flashing install weep holes in the head joints every 2 feet on center. It takes both flashing and weep holes to make the system work.LINTELS AND SILLSWhenever possible, set windows and doors back from the face of the wall. This creates a drip that keeps rain off the sealed joint between the window head and lintel. It also creates a shadow line to hide the flashing.

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