Specification

Project Name/Project Number/26-Aug-15 07 65 00 (Masonry Accessories) Flexible Flashing

DuPont™ Thru-Wall Flashing

1. Refer to Section [07 92 00 Joint Sealants] [insert section number and title].

2. Provide sealant that complies with ASTM C920, elastomeric polymer sealant to maintain watertight

conditions.

(Specifier Note: Sealant products listed below have been tested for compatibility and intermittent contact with

DuPont weather barrier materials. EDIT for specific project as appropriate when sealants are specified within

this section.)

3. Products:

a. DuPont™ Residential Sealant

b. DuPont™ Commercial Sealant

c. Sealants recommended by the weather barrier manufacturer.

D. Primer:

1. Provide flashing manufacturer recommended primer to assist in adhesion between substrate and

flashing

(Specifier Note: Products listed below are only recommendations for inclusion when required and should be

EDITED for specific project.)

2. Products:

a. 3M High Strength 90

b. Denso Butyl Spray

(Specifier Note: SIA product meets California VOC requirements.)

c. SIA 655

d. Permagrip 105

e. ITW TACC Sta’ Put SPH

f. Primers recommended by the flashing manufacturer

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify substrate and surface conditions are in accordance with flexible flashing manufacturer

recommended tolerances prior to installation.

B. Review requirements for sequencing of installation of flexible flashing assembly with installation of

windows, doors, louvers and wall penetrations to provide a weather-tight flashing assembly.

(Specifier Note: Flashing manufacturer recommends weather barrier be installed before the installation of the

windows. USE these opening preparation and flashing articles for flashing non-flanged windows when they will

be installed after the installation of a weather barrier.)

3.2 OPENING PREPARATION (for use with non-flanged windows – all cladding types)

A. Flush cut weather barrier membrane at edge of sheathing around full perimeter of opening.

B. Cut a head flap at 45-degree angle in the weather barrier membrane at window head to expose 8

inches of sheathing. Temporarily secure weather barrier membrane flap away from sheathing with tape.

3.3 FLASHING (for use with non-flanged windows – all cladding types)