Dow WEATHERMATE™ SILL PAN - Manual

US/CANADA . INSTALLATION INFORMATION . RESIDENTIAL
installation recommendations for
WEATHERMATE™ FLASHINGS AND
WEATHERMATE™ SILL PAN
®™Trademark of The Dow Chemical Company (“Dow”) or an affi liated company of Dow
*Consult the label and Material Safety Data Sheet carefully before use.
**Dow polyisocyanurate insulation available in U.S. only.
These instructions describe
how to use WEATHERMATE ™
Flashings and WEATHERMATE ™
Sill Pan to fl ash a fl anged
window installed on a wall
assembly consisting of rigid
foam as the water-resistive
barrier (WRB) on a wood frame
wall. For information on fl ashing
windows installed in other types
of wall assemblies, contact your
Dow representative or call
1-866-583-BLUE (2583).
For excellent protection against air
infi ltration and moisture penetration,
count on WEATHERMATE ™ Weather
Barrier Solutions from Dow:
• WEATHERMATE ™ housewraps
• WEATHERMATE ™ Construction Tape
• WEATHERMATE ™ Sill Pan
• WEATHERMATE ™ Straight
and/or Flexible Flashing
• GREAT STUFF PRO ™ Window &
Door Insulating Foam Sealant*
• STYROFOAM ™ Brand Extruded
Polystyrene Foam Insulation and
Dow polyisocyanurate insulation**
1. Install Rigid Foam
Insulation
a. Install approved water-resistive
STYROFOAM ™ Brand Extruded
Polystyrene Foam Insulation or
Dow polyisocyanurate insulation.
Visit www.insulateyourhome.com
for complete installation instructions
on how to install rigid foam as a
WRB.
2. Install
WEATHERMATE™
Sill Pan
a. Position one corner piece along
the base of window rough
opening, lapping over insulation.
b. Press fi rmly against corner of
window opening. Nail or staple
in place, following embossed
instructions on product.
c. Position second piece, overlapping
fi rst piece with a minimum overlap
of 2" (51 mm). Press second
piece fi rmly into corner of window
opening. Nail or staple in place,
following embossed instructions
on product.
Figure 1
RIGID FOAM INSULATION AS WATER-RESISTIVE BARRIER ON A WOOD FRAME WALL
NOTE: WEATHERMATE™
Sill Pan is suitable for use in
windowsills only.
Figure 2a
Figure 2b
Figure 2c