This masonry base of wall detail shows a flexible thru-wall flashing mechanically fastened to the CMU backup through a termination bar, with a continuous bead of sealant along the top of the term. bar. The exposed portion of the flashing is a sheet metal drip edge secured held in place by mastic or sealant, with a hemmed edge, extending from the face of the masonry about 1/2″. The flashing has an 8″ (nominal) vertical leg. The wall has a 2″ clear air space for drainage, and weep vents are spaced at 24″ o.c. There is an air/moisture/vapor barrier on the cavity side of the CMU, and 2″ rigid insulation resides in the drainage cavity.
This detail is intended for the use of industry professionals who are competent to evaluate the significance and limitations of the information provided herein. This detail should not be used as the sole guide for masonry design and construction, and IMI disclaims any and all legal responsibility for the consequences of applying the information.