Pella 81AK0101 - Manual (Page 4)

Optional Sill Pan Instructions:
I. Cut the sill pan to the width of the rough opening plus 2".
Note: The 2" added onto the rough opening width is for a 1" bend on each end.
J. Make a 1" cut in each fold at both end of the sill pan.
Note: These cuts will allow the edges of the sill pan to be bent.
Note: 4-5/8" wide for Out-Swing and In-Swing for 4-9/16" wall condition. For other
wall conditions, measure wall depth and add 1/16".
INTERIOR SILL P
AN LIP
EXTERIOR SILL P
AN LIP
1"
1"
Variable
1J
1"
INTERIOR SILL PAN LIP
EXTERIOR SILL PAN LIP
1"
1K
INTERIOR SILL P
AN LIP
EXTERIOR SILL P
AN LIP
1L
Exterior
1M
EXTERIOR SILL P
AN LIP Install flush
against exterior
rough opening.
1N
EXTERIOR SILL P
AN LIP
Flashing T
ape
Weather Barrier
K. Cut 1" off each end
of the interior sill
pan lip.
L. Bend each end of the
sill pan upwards.
M. Install the sill pan by sliding into
place until the exterior sill pan lip is
flush with the exterior of the rough
opening.
N. Apply sill flashing tape. Cut a
piece of flashing tape 2" longer
than the opening width. Apply
at the bottom of the opening,
covering the exterior sill pan lip as
shown.
Note: If applicable, apply spray
adhesive to building felt prior to
applying the flashing tape.
O. Cut two 9" pieces of flashing tape with a 1-1/2" x
3"tab at the bottom, on opposite corners as shown.
P. Apply the tabbed 9" pieces of flashing tap.
The tape is applied so 1-1/2" will cover the
inside of the rough opening and lap over the
side flange of the sill pan. The 1-1/2" x 3" tab
laps over the bottom flashing tape as shown.
Q. Cut two 6" pieces of flashing tape and
apply to each side of the rough opening,
overlapping the first piece by 1" and lapping
the bottom over the side flange of the sill pan
as shown.
1
ROUGH OPENING PREPARATION (continued):
9"
3"
Tabs
3"
1-1/2"
9"
1O
1-1/2"
Tabs
1-1/2"
1-1/2"
9"
3"
EXTERIOR SILL P
AN LIP
Flashing T
ape
1-1/2"
1-1/2"
Side
Flange
9"
EXTERIOR SILL P
AN LIP
Flashing T
ape
1"
1-1/2"
1-1/2"
9"
1P
EXTERIOR SILL P
AN LIP
Flashing T
ape
1-1/2"
1-1/2"
Side
Flange
9"
EXTERIOR SILL P
AN LIP
Flashing T
ape
1"
1-1/2"
1-1/2"
9"
1Q