Dow WEATHERMATE™ Straight Flashing - Manual

WEATHERMATE ™ Straight
Flashing provides a tear-resistant
seal that resists water intrusion
around windows and doors.
It is part of the complete
WEATHERMATE
™ Weather
Barrier Solutions lineup from
Dow – products designed to
enhance the performance of
the building envelope.
PROPERTIES
WEATHERMATE ™ Straight
Flashing combines a blue
tough coated woven polypropy-
lene film facer with a butyl rub-
ber adhesive that forms a strong
mechanical and chemical bond to
most building materials. A plastic
film release liner provides a more
consistent peel than plain paper
liners.
WEATHERMATE Straight
Flashing contains no asphalt.
The butyl rubber adhesive tech-
nology, a key component of
this flashing, is considered
superior to asphalt adhesives in
compatibility with commonly
used building envelope caulking
materials, insulated and non-
insulated sheathing, housewraps
and window casing materials.
Properties of WEATHERMATE
Straight Flashing are presented in
Table 1. Performance testing
results are presented in Table 2.
®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
United States
WEATHERMATE ™ Straight Flashing
Face Material Composition Coated woven polypropylene film
Face Color Blue
Adhesive Composition Butyl rubber
Adhesive Color Gray
Thickness 30 mil
Release Liner White plastic film
Width 4", 6", 9"
Length 100'
T A B L E 1
Properties of WEATHERMATE™ Straight Flashing
Water Vapor Transmission, ASTM E96, perms < 1
Minimum Application Temperature 30°F
UV Resistance 180 days
T A B L E 2
WEATHERMATE™ Straight Flashing Performance Testing
WEA
THERMA
TE
Straight
Flashing
Installation
HOUSEWRAP OVER AN
EXTERIOR SHEATHING ON
A WOOD FRAME WALL
The instructions outlined
here describe how to use
WEATHERMATE
™ Straight
Flashing to flash a flanged window
installed on a wall assembly
consisting of housewrap over
an exterior sheathing on a wood
frame wall. For information on
using WEATHERMATE Straight
Flashing on other types of
wall assemblies, contact your
Dow representative or call
1-866-583-BLUE (2583).
Step 1:
a. After installing housewrap
over rough window open-
ings, make an inverted “Y”
cut in the housewrap at
each window.
b. Fold housewrap in at jambs
and sill, fastening to inside
face of framing.
c. At the top of each jamb, cut the
housewrap 6" at a 45-degree
angle. Pull up and temporarily
fasten above window opening
(Figure 1).
P R O D U C T / I N S T A L L A T I O N
I N F O R M A T I O N R E S I D E N T I A L
Figure 1