Dow WEATHERMATE™ Brand Housewraps - Manual (Page 2)

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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 weather-resistive barrier": StyrofoAm™ DUrAmAte™ Plus, StyrofoAm™ residential
Sheathing, StyrofoAm™ tongue and Groove, StyrofoAm SiS™, StyrofoAm™ Square edge, StyrofoAm™ residing Board, DoW™ High Performance Underlayment, tHermAX™ Sheathing, 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 qualified as water-
resistive alternatives to the prescribed felt (see Evaluation Reports NER-593 and NER-640 for approved alternative).
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 specific system.
6. At each window and door rough
opening, make an inverted “y” cut
in the WeAtHermAte™ Brand
Housewrap:
• Cut from the top center of the
opening straight down about half
the height of the opening.
• From this point at the center
of the opening, make a cut
diagonally to the lower right
corner of the opening and a
second cut to the lower left
corner.
• Finish by cutting completely
across the upper edge of the
opening.
• Pull each of the three flaps to the
inside of the opening and fasten
to the inside face of the framing
with staples spaced every 6
inches. trim excess.
7. Install windows and doors
according to manufacturer’s
recommendations. flash windows
and doors with WeAtHermAte™
flashings and Sill Pan system
according to building code
requirements. When flashing
windows, doors, roofs, deck
connections to walls, etc., be
careful to lap housewrap and
flashings so water does not get
behind flashing.
8. WeAtHermAte™ Brand
Housewrap should not be
exposed to sunlight for more than
60 days while WeAtHermAte™
Plus Brand Housewrap should not
be exposed to sunlight for more
than 120 days. Before installing
the exterior finish, consideration
should be given to sealing all
penetrations with a tape or
sealant to further prevent water
infiltration or where needed in an
air barrier system design.
9. When using wood siding, brick
or stone, it is recommended that
a minimum 1/2-inch air space
be allowed between the exterior
finish and WeAtHermAte™
Brand Housewrap.
Figure 6
Figure 7
Figure 8