Instructions / Assembly

5
2
A
D
C
E
B
The use of a sill pan and other barriers will decrease
the rough opening height clearance. Adjust the
opening dimensions accordingly.
Rough Opening Requirements
• Verify the width and height of the rough opening is 1/2" larger than
the wall system width and height.
• Verify the rough opening
is square. The (A) and (B)
measurements should be the
same. Suggested deviation
from square is no more
than1/4".
• Verify the rough opening is
level and plumb (C, D and E).
Suggested deviation is no more
than 1/4".
• The rough opening sill should
not be crowned or sagged
(D), but rather level or sloped
(positive slope) to the exterior.
• The exterior face of the rough opening should be in a single plane (E)
with less than 1/8" twist from corner to corner.
• Minimum double studs (king and jack/trimmer) should be used to
support the header at all rough openings.
For Retrot Installations
Verify the rough opening framing is structurally sound. Contact your local
waste management entities for proper disposal or recycling of products
being removed.
This installation guide only addresses masonry/block wall, sheathed
wall, open-stud construction and brick veneer construction. Exterior
foam installation should be treated as detailed within the “Fully
Sheathed Wall Construction” with the door frame not protruding
past the structural framing.
Masonry/Block Wall Construction
This installation assumes
that a framework of
studs (often called a
buck) has already been
properly fastened to the
concrete/masonry wall in a
weatherproof manner.
Verify Square, Level and Plumb
Fully Sheathed Wall Construction
Sheathing is applied to
the exterior of the wall
framing. The wall system
will be mounted into
the rough opening in a
weatherproof manner.
Open-Stud Construction
Sheathing is absent and
building wrap is applied
atop the wall framing. The
wall system will be mounted
into the rough opening in a
weatherproof manner.
Buck
Sill area
Sheathing
Building
Wrap
Flashing
Sill area
Flashing
Building
Wrap
Open Stud
Assembly and Installation Instructions
for Smooth-Pro
™
F-4500 Fiberglass Folding Wall System (JII-90076)
INSPECT ROUGH OPENING (R.O.)