JELD-WEN JII041 W-4500 Folding Door Systems User Manual

Page 4

The sill can be prepared using one of two methods: We recommend

SureSill™ Sloped Sill Pan™ available from SureSill at www.suresill.com,

building supply stores, and some manufacturing locations or fabricate a sill

pan on site. If installing a SureSill™ sill pan, follow SureSill™’s instructions

for installation and skip to section 4 “PREPARE BUCK“, or to section

5, “PREPARE STUD-FRAMED WALL“ as it applies to your situation. If

fabricating a sill pan on the job site, follow the instructions below.

JOBSITE FABRICATED SILL PAN

1. Cut a piece of sheet

material to the

length shown.

2. Lightly crease folding

lines 1/2" in from the

two short sides and

one long side.

3. Measure the width

of the frame and add

9/16".

4. Take this distance

from the back edge

and lightly crease a

folding line across

the sheet material.

5. For step-down

landings, cut 1/2" in

at this line on both

sides of the sheet

material.

6. For continuous slab,

cut across the folding

line.

• Verify the width and height

of the door frame are each
1/2"- 3/4" smaller than the
rough opening width/height.

• Verify the rough opening

is square. The (A) and (B)
measurements should be the
same. Maximum allowable
deviation from square is 1/4".

Verify Square, Level, and Plumb

REMOVE PACKAGING

Remove shipping materials such as corner covers, shipping blocks
or pads.

INSPECT DOOR

• Cosmetic damage

7. Fold the three back sides

up to make a 3-sided

box, and, for step-down

landings, fold the front

flap down.

INSTALL SILL PAN

1. Set the sill pan in

the rough opening,

aligning the front

edge (for continuous

slab) or folded down

edge (for step down)

with the exterior of

the rough opening.

2. Mark a line across

the front and back of

the sill pan.

3. Apply three 3/8"

beads of sealant

between the lines.

4. Place the sill pan in

the rough opening.

Firmly press the sill

pan into the sealant

with a J-roller.

Sealant

• Correct product (size, color, grid pattern, handing, glazing, energy-

efficiency requirements, etc.)

If any of the above conditions represent a concern, or if you expect
environmental conditions to exceed the door's performance rating,
do not install the door. Contact your dealer or distributor for
recommendations.

• Verify the rough opening is level and plumb (C). The maximum

allowable deviation is 1/8".

• The rough opening sill must not be crowned or sagged (D). A 5

degree

sloped sill is recommended.

• The exterior face of the rough opening must be in a single plane (E)

with less than 1/8" twist from corner to corner.

Frame

width

+9/16"

Folding Line

Length of rough opening sill plus 1"

1/2"

Fold sides and back up

Fold corner

forward

Fold front

flap down

Remove for

continuous slab

REMOVE PACKAGING AND INSPECT DOOR

INSPECT ROUGH OPENING

INSTALL SILL PAN

ASSEMBLY AND INSTALLATION INSTRUCTIONS

for W-4500 Folding Door Systems (JII041)