b'Replacing Windows inConcrete Block andStucco (CBS)ApplicationsReplacement applications in Coastal Regions will be for 1. Measure- It is difficult to measure for the new windowwindows installed in block walled homes with Stuccobecause so much of the old window can be hidden behindfinish, and standard wood frame constructed homes with the exterior stucco finish and the interior wallboard and/orvinyl, wood, aluminum siding or brick or other masonry sill finish. The new window cannot be too large or tooveneer finish. small, for obvious reasons. The success of the job can be made or broken with proper measure or improper There are unique conditions for stucco over wood frame measurement.and stucco over concrete block construction. Some conditions of stucco finish on wood frame are covered in 2. Removal of Old Window- When removing the old the Jump Frame section and applications where thewindow, it is problematic because the stucco needs to stucco is cut back removing a window with brick mould be kept out of the way of the removal, but damaging theand the new product is installed with a wood block stucco can require costly and difficult stucco repair, installed over the mounting fin of the new window andwhich almost never can be matched to the old finishthe resulting assembly is installed in the opening and making for an unsightly exterior finish. The interior sealed to the remaining stucco finish. wallboard and sill, if damaged, can also require difficultand costly repair and/or replacement of components.The conditions and instructions covered here will apply primarily to building constructions considered CBS 3. Finish of the New Window- Once the new window is(Concrete Block Stucco) and wood frame with similarinstalled, the exterior needs to be finished to create astucco finish. weather barrier that repels entry of water, moisture andair, and the interior needs to be returned to a decorativeStucco covers the edge of the Old Window state as good or better than existed with the old window.Because the original construction had the stucco finishapplied after the window or door was installed, the stucco The mistake too often made is to order a window too smalloften will partially cover the flange of the old window. This for the opening, and/or ordering a window that needs thecreates problems that must be dealt with: Measurement, mounting flanges cut off in order to make it fit in the Removal of the Old Window, and Finish of the New opening, but rendering it impossible to properly seal it Window.on the outside and trim in on the inside.Window Fitters Guide to Window Installation134 2020 AWDI, LLC Do not reproduce without permission'