U S / C A N A D A . I NSTA L LATI ON I NFOR MATIO N . RESI DENT IAL
insta l l ation recommendat i o n s f o r
WE AT HE R M AT E™
WE AT HE R B A R RI ER S OLU TI O N S
These instructions describe how to install WEATHERMATE™
Weather Barrier Solutions for exceptional exterior water
management. The fi gures show a wood frame wall
with OSB and WEATHERMATE
™
Plus Housewrap.
For information on fl ashing windows and doors installed
in other types of wall assemblies, visit
www.insulateyourhome.com, contact your Dow
representative or call 866-583-BLUE (2583).
Figure 1b
Figure 1e Figure 1f
1. INSTALL SHEATHING AND HOUSEWRAP
a. Install sheathing.
b. Install housewrap over sheathing and over rough window
and door openings according to product installation
instructions.
c. At each window and door opening, make an inverted “Y”
cut in the housewrap.
d. Fasten bottom and side fl aps to the inside face of the
framing.
e. At each corner of rectangular header, make a 6" (15 cm)
cut at a 45-degree angle. Pull up housewrap fl ap and
temporarily secure with WEATHERMATE
™
Construction
Tape.
f. For curved windows and doors, cut as shown.
®™Trademark of The Dow Chemical Company (“Dow”) or an affi liated company of Dow
*Consult the instructions and Material Safety Data Sheet carefully before use.
For excellent protection against air infi ltration and moisture
intrusion, count on WEATHERMATE
Solutions from Dow:
• WEATHERMATE
• WEATHERMATE
• WEATHERMATE
• WEATHERMATE
• GREAT STUFF PRO
Sealant*
• STYROFOAM
™
housewraps
™
Construction Tape
™
Sill Pan
™
Straight and/or Flexible Flashing
™
Window & Door Insulating Foam
™
Brand Extruded Polystyrene Foam
™
Weather Barrier
Insulation and Dow polyisocyanurate insulation
2. INSTALL WEATHERMATE™ SILL PAN
a. Position one corner piece along the base of
window rough opening, lapping over waterresistive barrier.
NOTE: WEATHERMATE™ Sill Pan is suitable for
use in window sills only.
b. Press fi rmly against corner of window opening.
Nail or staple in place, following embossed
instructions on product.
NOTE: WEATHERMATE™ Sill Pan works best
when the sill is sloped to the exterior.
c. Position second piece, overlapping fi rst piece
with a minimum overlap of 2" (5 cm). Press
second piece fi rmly into corner of window
opening. Nail or staple in place, following
embossed instructions on product.
d. For window openings wider than 5' (1.5 m),
install WEATHERMATE
™
Sill Pan in corners,
then cut the corner off a third piece, taking care
not to damage backdam. Center this straight
length over the two corner pieces, overlapping
each piece a minimum of 2" (5 cm).
e. Seal overlap seam and top edge of corner
pieces with WEATHERMATE
™
Flashing, as
shown.
f. If shims are necessary when installing the
window, place them under WEATHERMATE
™
Sill Pan.
Figure 2a Figure 2b
Figure 2c Figure 2e
3. INSTALL WINDOW/DOOR AND FLASH
JAMBS
a. Apply a continuous bead of compatible sealant
to the back side of the mounting fl ange, along
the header and sides of the window/door. Install
windows and doors plumb, level and square,
according to manufacturer recommendations.
b. Ensure substrate surface is clean, dry and free
of grease, dust or debris. A spray adhesive,
such as 3M Hi-Strength 90, is recommended
if applying WEATHERMATE
™
Flashings directly
to OSB or other surfaces where additional
adhesion may be required.
c. Remove release liner and apply
WEATHERMATE
jambs, overlapping WEATHERMATE
™
Straight Flashing along
™
Sill Pan or
other sill fl ashing.
Figure 3a
®™Trademark of The Dow Chemical Company (“Dow”) or an affi liated company of Dow
2
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