Dow WEATHER BARRIER SOLUTIONS - Manual (Page 4)

Form No. 179-07305X-0410P&M
178-01084-0410P&M
www.insulateyourhome.com
FOR TECHNICAL INFORMATION: 866-583-BLUE (2583)
FOR SALES INFORMATION: 800-232-2436
THE DOW CHEMICAL COMPANY
Dow Building Solutions • 200 Larkin • Midland, MI 48674 FOR TECHNICAL INFORMATION: 866-583-BLUE (2583) (English) • 800-363-6210 (French)
FOR SALES INFORMATION: 800-232-2436 (English) • 800-565-1255 (French)
DOW CHEMICAL CANADA ULC
Dow Building Solutions • Suite 2100 • 450 – 1st St. SW • Calgary, AB T2P 5H1
Printed in U.S.A.
®™Trademark of The Dow Chemical Company (“Dow”) or an affi liated company of Dow
Habitat for Humanity is a registered service mark owned by Habitat for Humanity International
NOTICE: No freedom from any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for
determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other
government enactments. The product shown in this literature may not be available for sale and/or available in all geographies where Dow is represented. The claims made may not have been approved for use in all countries
or regions. Dow assumes no obligation or liability for the information in this document. References to “Dow” or the “Company” mean The Dow Chemical Company and its consolidated subsidiaries unless otherwise expressly
noted. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.
NOTICE: Changes to the International Residential Code require the installation of a water-resistive barrier (WRB) within most exterior wall assemblies in residential construction. The following Dow insulated sheathing products
qualify as a WRB when installed according to the installation instructions developed for “installation of foam sheathing as a water-resistive barrier”: STYROFOAM™ DURAMATE™ Plus, STYROFOAM™ Residential Sheathing,
STYROFOAM™ Tongue and Groove, STYROFOAM™ Square Edge, STYROFOAM™ Residing Board, DOW™ High Performance Underlayment, THERMAX™ Sheathing, STYROFOAM SIS™, TUFF-R™ and Super TUFF-R™
and therefore do not require the use of a building paper or a housewrap as a WRB. When a WRB is not needed, these Dow foam sheathings may be installed according to standard installation instructions for foam sheathing
from Dow. Be sure products and installation instructions meet code requirements for your particular location. Note: WEATHERMATE™ and WEATHERMATE™ Plus housewraps have already qualifi ed as water-resistive
alternatives to the prescribed felt (see Evaluation Reports NER-593 and NER-640 for approved alternative).
COMBUSTIBLE: GREAT STUFF PRO™ Window & Door Insulating Foam Sealant is combustible and will burn if exposed to open fl ame or sparks from high-energy sources. Do not expose to temperatures above 240°F (116ºC).
For more information, consult MSDS, call Dow at 866-583-BLUE (2583) or contact your local building inspector. In an emergency, call 989-636-4400 in the U.S. or 519-339-3711 in Canada.
GREAT STUFF PRO™ Window & Door Insulating Foam Sealant contains isocyanate and a fl ammable blowing agent. Read the label and Material Safety Data Sheet carefully before use. Eliminate all sources of ignition before
use. Wear gloves, and goggles or safety glasses. Provide adequate ventilation or wear proper respiratory protection. Contents under pressure.
WEATHERMATE™ housewraps are a secondary defense against bulk water intrusion. The exterior fi nish is the primary water barrier.
WEATHERMATE™ Sill Pan works best when the sill is sloped to the exterior.
Building and/or construction practices unrelated to building materials could greatly affect moisture and the potential for mold formation. No material supplier including Dow can give assurance that mold will not develop in
any specifi c system.
SILL PAN OPTION 2
To create a sill pan with backdam using
WEATHERMATE ™ Flexible Flashing:
a. Cut a length of fl ashing 1' (30 cm) longer than
the width of the window.
b. Before removing release liner, fold the fl ashing
lengthwise about 1" to 1-1/2" (2.5 cm to 3.8 cm)
from the edge, to form a crease. Next, fold 3/8"
to 3/4" (1 cm to 1.9 cm) of material back up to
form a second crease. The peak that is formed
will serve as the backdam, thus providing
positive water drainage to the exterior.
c. Peel the release liner from the long edge to
the fi rst crease. Position the fl ashing along the
bottom and 6" (15 cm) up sides of the rough
opening, but do not affi x fi rmly. Continue
peeling the release paper to the second crease.
Press sides of peak together to bond. Peel the
remainder of the release paper and position the
fl ashing on the sill.
d. Do not stretch the fl ashing. When the fl ashing
is positioned correctly, press fi rmly, working
from the center to corners and up the jamb,
removing air pockets as you work.
e. Secure outer edges of fl ashing with plastic cap
nails to hold in place.
WEATHERMATE ™ Flexible Flashing used as
sill pan with backdam