Instructions / Assembly

Window Installation Instructions
Install trim and/or exterior wall cladding or siding
around perimeter of window. Seal perimeter joints per
the recommendations of the cladding and window
manufacturers (see Figure 9).
8
Step
Do not seal joint of
supplemental head
ashing (where
occurs).
Seal joint between
window frame & trim
(where occurs).
Seal joint between
siding and trim.
Figure 9 Install cladding.
Install weather-resistant barrier shingle fashion from
bottom of wall to top. Insert weather-resistant barrier
under Nashua sill ashing. Peel off remaining release
liner from Nashua sill ashing and adhere to weather-
resistant barrier. Seal edges of weather-resistant
barrier to Nashua ashing along the window jamb and
head (see Figure 8).
Figure 8 Install weather-resistant barrier and seal
around perimeter.
25 Forge Parkway | Franklin, MA 02038 | 1.800.343.7875 | nashuatape.com
Precut Nashua jamb ashing tape to extend a
minimum of 6” above and below the rough opening.
Peel off release liner and adhere Nashua jamb ashing
over the jamb ns and over top of Nashua sill ashing
(see Figure 6). A roller or squeegee may be used to
help promote adhesion and remove air pockets.
STEP 5 - JAMB FLASHING
Figure 6 Apply Jamb Flashing.
Precut Nashua head ashing tape to extend a
minimum of 6” beyond the jambs of the rough
opening. Peel off release liner and adhere Nashua
head ashing over window n and substrate. Install
supplemental head ashing (where occurs) with a strip
of Nashua ashing over the top leg (see Figure 7).
STEP 6 - HEAD FLASHING
STEP 7 - WEATHER BARRIER
STEP 8 - TRIM/CLAD/SIDE
Figure 7 Apply Head Flashing.
TUCK WEATHER-
RESISTANT
BARRIER UNDER
SILL FLASHING.
PEEL OFF
REMAINING
RELEASE LINER
SEAL WEATHER
BARRIER TO
JAMB AND HEAD
FLASHING
SUPPLEMENTAL
HEAD FLASHING
(WHERE OCCURS)