Instructions / Assembly

7
4
Landings
These instructions cover two wall system sill conditions: the step-down
landing and the continuous slab landing. The installation methods vary
slightly between landing types.
Prepare Sill
1. A pan ashing system (as
dened in ASTM E2112)
is required at the sill prior
to window/door product
installation. Always allow
water to drain out of the pan
and onto the building wrap,
drainage plane or to the
exterior.
NOTE: Sill pans for step-down
landings will have a folded-down
edge in the front to accept the
step-down landing.
2. Apply a continuous
bead of sealant to the
interior of the upturned
leg and end dams of
the sill pan (if using a
rigid sillpan).
Shim the Sill
See Product Installation Tolerance Table for tolerances
1. Unless installing
into a sill pan with a
positive sloped draining
system, shims should
be aligned as dened
by the label on the
wall system or as
stated below:
• Shims (1/4"
maximum) should
be placed near the
exterior edge of the
sill pan.
• Place one shim 2" from each side of the rough opening (if the
rough opening is sized correctly, this should be approximately
1 1/2"- 2" from the corner of the wall system).
• Shims should be no more than 8" on-center.
• There should always be a drainage path to the exterior out of the
sill pan.
• Shims can be held in place with sealant.
• Increased shim height may be needed or may interfere with bar/
grill alignment of adjacent windows/doors.
Continuous Slab LandingStep-Down Landing
2"
8" O.C.
Assembly and Installation Instructions
for Smooth-Pro
™
F-4500 Fiberglass Folding Wall System (JII-90076)
INSTALL SILL PAN FLASHING SYSTEM