Rough opening preparation (continued), 1h 1i – Pella 81470102 User Manual
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ROUGH OPENING PREPARATION (CONTINUED)
1"
1/2"
1/2"
6"
1H
1I
Flashing tape
overhanging 1"
to the exterior.
6"
1H
Flashing tape
at the exterior edge
of the opening
F. Confirm wall depth measurement. Measure bottom board cutback on unit to make sure it is
larger than the distance from the interior of wall to exterior of wall. If necessary, remove or cut
siding.
G. REPLACEMENT APPLICATIONS: Seal between exterior cladding and wall. If exterior
cladding is siding, apply sealant between the siding and rough opening at the head and jambs
and cover with flashing tape according to Express Replacement - No Siding Removal Opening
Preparation for Siding: Vinyl, Steel , Aluminum.’ If exterior cladding is brick, add blocking
at jamb to close the cavity between the brick and rough opening. Apply sealant at each joint
between the brick, blocking and rough opening and cover the joints with flashing tape.
H. Apply sill flashing tape #1. (Wood wall construction only). Cut a piece of flashing tape
12" longer than the opening. Apply at the bottom up to the exterior edge of the opening as
shown. If the sheathing or water barrier
is exposed, overlap 1" to the exterior as
shown in (1I).
Note: The tape is cut 12" longer than
the width so it will extend 6" up each
side of the opening.
I. Tab the sill flashing tape and fold (If
tape #1 overhangs 1" to the exterior).
Cut 1" wide tabs at each corner (1/2"
from each side of the corner) (1I). Fold
tape to the exterior and press firmly to
adhere it to the water resistive barrier.
Measure
This
Distance
PRESS
SEALANT
INTO
OPENING
HEAD
AND
JAMBS
ONLY
1G
1G
1G
1G
1”
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
REPL
APPS
REPL
APPS
REPL
APPS
REPL
APPS
REPL
APPS
REPL
APPS
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL