JELD-WEN JII041 W-4500 Folding Door Systems User Manual
Page 5
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6. Cut two pieces of
self-adhesive flashing
6" wide by the sill
pan width + 3" long.
a. For continuous
slab landings
only, cut out the
inside corner.
b. Adhere the
pieces of
flashing to the
inside corners.
Stretch flashing
as needed to
cover corners
and lay flat.
7. Smooth gaps or
bubbles beneath
self-adhesive flashing
with a J-roller
(remove and replace
if necessary).
8. Seal back corners of
sill pan with sealant.
9. For step-down
landings only, cut
plastic drain screen
to length of sill +
2" and staple 1/2"
below sill edge. The
drain screen provides
a path for air to
dry any incidental
moisture in the
rough opening.
End of Stud-Framed
Wall Instructions, continue with section 6, “INSTALL DOOR.”
FOR RETROFIT INSTALLATIONS
Completely remove the old door unit. Verify rough opening is structurally
sound.
PREPARE BUILDING WRAP
Verify these steps are allowed by the building wrap manufacturer.
1. Trim building wrap flush with the edges of the rough opening.
2. If the door extends
beyond the exterior
plain of the building
and a drip cap is
desired, at the head,
slit building wrap
6" at 45°. Tape
up as shown. We
recommend installing
a drip cap because
this integrates the
building wrap and
drip cap to protect
the structure and
the product from
incidental water.
3. Trim the sides
sufficiently to allow
the nailing fin to be
mounted against the
sheathing.
Note!
The rest of the
steps in this section
only apply to a job site
fabricated sill pan. If
installing a sill pan that
you have purchased, follow manufacturer's instructions for installation
and skip to section 6, “INSTALL DOOR.”
4. Apply spray adhesive/primer to the sill pan and surrounding area.
Follow manufacturer’s instructions for application methods.
5. Cut a piece of self-adhesive flashing the length of the sill and apply
over the sill pan as shown. The bottom of the sill pan should be
completely covered by the self-adhesive flashing. For step down
landings, fold flashing down as shown. For continuous slabs, trim
flush with rough opening.
45˚
6"
Sill pan
width
3"
6"
Discard
(for
continuous
slab only)
Continuous Slab
Landing
Sill pan
width
3"
3"
Step-Down
Landing
Sill pan
width
3"
3"
Note!
This section applies to installations into a buck only. For
installations into a stud-framed wall, begin with section 5, “PREPARE
STUD-FRAMED WALL.”
1. Seal any joint larger than 1/16" in the buck and between the buck
and the concrete/masonry with sealant.
2. Cover the buck and the surrounding concrete/masonry at the head
and jambs (apply over sill pan if installing a job site fabricated sill
pan) with liquid applied flashing per manufacture's instructions as
shown.
END of Buck Instructions, SKIP to section 6, “INSTALL DOOR.”
Sealant
Sealant joints
Liquid applied
flashing
PREPARE BUCK
PREPARE STUD-FRAMED WALL
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ASSEMBLY AND INSTALLATION INSTRUCTIONS
for W-4500 Folding Door Systems (JII041)