DELTA®-FOXX

Vapor permeable 2-layer roof underlayment for all roof claddings. Tough, waterproof, and wind resistant. The most advanced moisture management roof underlayment on the market. Cutting edge technology allows for extreme vapor permeability.

ICC-ES Evaluation Report (AC48 & AC188)

ICC ESR-2625

Properties

This extraordinarily tough membrane has a very high water vapor permeability, which ensures excess moisture is quickly removed from the roof. A water-repellent dispersion coating makes DELTA®-FOXX permanently and reliably waterproof. DELTA®-FOXX is Class A fire-rated.

Material

Special, highly tear-resistant PET non-woven substrate with a vapor permeable but watertight dispersion coating.

Application

DELTA®-FOXX is very easy to handle - the lightweight rolls enable quick unrolling and precise alignment of edges. The membrane does not distort, buckle or flap. DELTA-FOXX can be easily lined up and unrolled. That makes application more efficient and reduces costs.

The smooth underside structure allows it to be effortlessly pulled over rough-sawn surfaces. This highly scuff- and tear-resistant membrane makes walking on it firm and safe underfoot, when laid on top of solid sheathing. This superior roofing membrane can be walked on wet or dry. The ‘anti-glare’ coating avoids any annoying reflections, even in extreme sunlight.

Technical Data

Product name	DELTA®-FOXX
Color	red-brown
Water vapor transmission	1466 g/m²/24 h 3763 g/m²/24 h	ASTM E96-05, Proc. A ASTM E96-05, Proc. B
Permeance	214 perms [grains/h/ft²/in Hg] 550 perms [grains/h/ft²/in Hg]	ASTM E96-05, Proc. A ASTM E96-05, Proc. B
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
Trapezoid tearing strength	MD 23.1 lb CD 15.9 lb	ASTM D4533-04
Tear Resistance	MD: 1916 g CD: 2564 g	ASTM D1922-03a
Fastener pull-through force	211 N	ASTM D3462-03
Water penetration resistance	103.8 cm	CAN/CGSB-4.2 #26.3-95
Water impact penetration resistance	no water passing	AATCC 42-2000
Flame Spread	5 NFPA Class A; UBC Class I	ASTM E84-09
Smoke developed	170 NFPA Class A; UBC Class I	ASTM E84-09
Air permeance	0.69 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 ft (50m)
Roll width	4.92 ft (1.5 m)