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Window Installation Instructions
For New Construction
rough opening equal to window call out size.
Rough opening should be plumb, square, and sill
should be level. For stucco applications furring
strips of at least 3/8" thick, should be
used around entire perimeter to allow for proper
clearance or optional stucco mold can be purchased,
see number 5 below. For special size Tru-Frame®
Greenhouse Windows the suggested rough opening
Width 5 1/2" Less Fin to Fin Dimension
Height 3 3/8" Less Fin to Fin Dimension
- Apply the flashing paper in the normal manner.
First the sill strip, then the jamb strips.
The top flashing goes on after the window is
installed and overlaps the top window fin. (see
- Center the Tru-Frame® Greenhouse Window
in rough opening allowing equal clearance on
both sides and top. Bottom pan should line up
with the finished sill height, allowing for
any inside additional materials such as tile
(see figure 3). Attach window to jambs, sill,
and header with screws long enough to penetrate
through any furring strips and deep into framing.
A ribbon of caulking between the frame and flashing
is a must.
- For window sizes 5' and larger, support bracing
is highly recommended on each end of the window
(Warranty could be void without proper support).
These supports can be constructed as part of
the wall framing or metal support brackets may
be fabricated to adequately support the window.
Support brackets can be purchased separately
from your Tru-Frame® Dealer. Fasteners to
be supplied by installer (1/4" X 3"
Lag screws are suggested for wall mounting).
Brackets must attach to the vertical studs below
the window. For 8' windows a third support should
also be used in the center. (see figure 3)
- Optional extruded aluminum stucco molding
is cut square to fit around the perimeter of
the window. Jamb moldings fit between header
and sill moldings. Stucco moldings can be purchased
separately from your Tru-Frame® Dealer.
(See figure 4a, 4b, and 4c)