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The extreme UV resistance of this water-resistive barrier makes it particularly suitable for use in open joint cladding systems. The watertight membrane is highly vapor permeable and extremely tear resistant

Its excellent stability against ultra violet light means no doubling up of the membrane and no sacrificial layers. DELTA®-FASSADE S provides sustainable moisture protection behind open joint claddings for many years of service.

DELTA®-FASSADE S is the only UV stable water-resistive barrier that is tested to and has passed ICC-AC38. See our ESR-2932, the only true evidence of compliance.

ICC-ESR 2932 DELTA® Water-resistive Barriers

ICC ESR-2932

Project Profile: Denver Botanic Gardens Science Pyramid


DELTA®-FASSADE S, highly stabilized against damage from UV exposure, is designed for use in cladding systems that have open joints of up to 2” (50 mm) wide which expose up to 40 % of the entire facade surface. It acts as a durable drainage plane, channeling bulk (liquid) water from wind-driven rain and snow to the outside of the structure. The watertight membrane helps protect the building enclosure from damaging effects of moisture infiltration. Its high vapor permeability allows moisture within the cavity to escape swiftly.
DELTA®-FASSADE S is Class A fire-rated. Its performance is unaffected by surfactants.
See DOWNLOADS tab for the NFPA 285 Compliant Wall Assemblies document.


Highly tear-resistant polyester substrate with a special, highly UV-stabilized acrylic coating


DELTA®-FASSADE S is very light-weight and tear-resistant, making installation fast, easy, and reliable. This technologically advanced membrane withstands the rigors of jobsites, as well as tough wind and weather.

Technical Data

Product name DELTA®-FASSADE S
Color black
Material PET substrate with UV stable acrylic coating
Water vapor transmission 1414.6 g/m²/24 h ASTM E96-05, Proc. A
Water vapor transmission 2274.4 g/m²/24 h ASTM E96-05, Proc. B
Vapor permeance 204 perms [grains/h/ft²/in Hg] ASTM E96-05, Proc. A
Vapor permeance 328 perms [grains/h/ft²/in Hg] ASTM E96-05, Proc. B
Dry tensile strength MD 47.4 lbs/in
CD 28.7 lbs/in
ASTM D882-02
Elongation at break MD 40 %
CD 45 %
ASTM D882-02
Breaking load MD 103.6 lb/2in
CD 62.6 lb/2in
ASTM D5035-06
Elongation at break MD 36.8 %
CD 47.8 %
ASTM D5035-06
Tear resistance
MD 1916 g
CD 2564 g
ASTM D1922-06a
Trapezoid tearing strength

MD 23.1 lb

CD 15.9 lb

ASTM D4533-04
Fastener pull-through force 211.3 N ASTM D3462-03
Water penetration resistance (Water Ponding Test)

Pass (> 10 min.)

Meets requirements of AC38 for Grade D water-resistive barrier

ICC AC38, 4.2.2, June 2011 (CCMC MF07102, Section 6.4.5)
Water penetration resistance 103.8 cm CAN/CGSB-4.2 #26.3-95
Water impact penetration resistance no water passing AATCC 42-2000
Bent test Pass (no cracking) ICC AC38, 3.3.4
Pliability Pass (no cracking) CAN/CGSB-51.32-M77 §5.2
Flame Spread 10
NFPA Class A; IBC Class A
ASTM E84-09
Smoke developed


NFPA ClassA; IBC Class A

ASTM E84-09
Air permeance 0.9 l/(s x m²) @ 75 Pa ASTM E2178
Temperature range  -40 °F to +176 °F
(-40 °C to +80 °C)
Mass per unit area approx. 7.9 oz/yd²  (270g/m²) CSA A220.1-06 4.4.4
Roll weight approx. 44 lb  (20 kg)
Roll length 164'  (50 m)
Roll width 4' 11"  (1.5 m)
Maximum UV (sunlight) Exposure (prior to installation of cladding)

Always cover as soon as possible

Maximum (full) exposure 30 weeks.

Service life expectancy > 25 years, if installed behind cladding systems that have open joints of up to 2” (50 mm) width which expose no more than 40 % of the entire facade surface.

DELTA® is a registered trademark of Ewald Dörken AG, Herdecke, Germany.

More Information

Overview Adhesives


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