Installation Guide

Copyright ©2012 E. I. du Pont de Nemours and Company. All Rights Reserved. Rev. 2/12 4
DuPont
™
Tyvek
®
Water-Resistive and Air Barriers Installation Guidelines
Special Considerations
1. When performance requirements exceed ASTM E1677, 65 mph equivalent structural
load and 15 mph equivalent wind-driven rain water infiltration for buildings less than
5 stories, it is recommended to install a high pressure skirt to help prevent water
intrusion at the sill or threshold and follow the DuPont
™
Flashing Systems
Commercial Installation Guidelines.
2. DuPont
™
Tyvek
®
StuccoWrap
™
and DuPont
™
Tyvek
®
DrainWrap
™
must be installed
with drainage grooves vertical, going up and down.
3. To obtain the installed R-Value benefits of DuPont
™
Tyvek
®
ThermaWrap
™
it must be
installed with shiny, metallic side facing towards a clear ¾ inch minimum airspace.
DuPont
™
Tyvek
®
ThermaWrap
™
will still act as a water-resistive barrier without an
airspace. Refer to the DuPont
™
Tyvek
®
ThermaWrap
™
Fact Sheet for more information.
4. DuPont requires that DuPont
™
Tyvek
®
HomeWrap
®
, DuPont
™
Tyvek
®
StuccoWrap
®
,
DuPont
™
Tyvek
®
DrainWrap
™
and DuPont
™
Tyvek
®
ThermaWrap
™
be covered within
4 months (120 days) of installation. DuPont
™
Tyvek
®
CommercialWrap
®
and DuPont
™
Tyvek
®
CommercialWrap
®
D must be covered within 9 months (270 days) of installation.
When installing windows and doors prior to the DuPont
™
Tyvek
®
WRB , refer to the
DuPont
™
Flashing Systems Installation Guidelines, Installation Instructions for Windows
and Doors BEFORE Water-Resistive Barrier (WRB) is Installed, which will direct you
back to this guide at the appropriate step.
Ifthewindowsanddoorshavealreadybeeninstalledandashed,integrate the
DuPont
™
Tyvek
®
WRB by following the DuPont
™
Flashing Systems Integration
section in this guide (page 9).
NOTE: If DuPont
™
FlexWrap
™
NF and apron are used, install the DuPont
™
Tyvek
®
WRB
undertheaprontoensurepropershingling.Ifanon-selfadheringsillashingproductis
used, please maintain proper shingling.