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A U G U S T , 2 0 1 6
frame and existing flashing in place
and only remove the sashes and the
side track, or in some cases the exist-
ing window is cut out of the rough
opening.
As previously stated, the most import-
ant difference between the window
types is the nailing flange that is part of
the new construction window. During
original construction, windows are
installed in existing framing before any
exterior building underlayment and final
exterior coverings are installed, i.e.
stucco, siding, stone, etc. These new
construction windows are installed with
a nailing flange that encompasses the
perimeter of the existing frame that
eliminates any potential areas of water
infiltration. New Tyvek house wrap is
installed over the nailing flange creating
a weather proof barrier and the final
exterior building component is installed.
In comparison, a replacement win-
dow can be installed by cutting away
the existing nailing flange from the orig-
inal new construction window, installing
the replacement windows into the exist-
ing openings and leaving the existing
perimeter flashing details. The new
replacement window is installed, a new
bead of caulk is installed at the perime-
ter and everyone is satisfied. The home-
owner is happy as they received a cost
effective window replacement and the
association is happy as a homeowner
just improved the value of the property.
Let’s now fast forward three years
from when Mrs. Smith installed new
replacement windows. After several
days of wind driven rain, Mrs. Smith
calls management to report a leak that
she is experiencing beneath her win-
WINDOWS...
from page 44.