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DELTA®-MAXX TITAN Thermomembrane

The reflective, highly vapor permeable, watertight roof underlay with energy saving properties. DELTA®-MAXX TITAN helps to keep your building cool in the summer, and warm in the winter.

ICC-ES Evaluation Report (AC48 & AC188)

ICC ESR-2625


Reflects up to 50% of radiant energy - the attic temperature can be lowered by up to 2°C compared to roofs with conventional roof underlayments.

The smooth surface of the Polyester substrate, as well as the embossed Polyurethane surface, makes installation fast and simple. High tear strength has proven to enhance safety and reliability of roofs for more than 15 years. DELTA®-MAXX TITAN is Class A fire-rated.


High strength Polyester fabric with vapor permeable Polyurethane coating and Titanium finish for reflection of radiant heat. The product also has a self-sealing adhesive edge to ensure a water- and windproof installation.


DELTA®-MAXX TITAN is lightweight, making the installation simple and safe. It unrolls quickly and can easily be aligned. This tough material will resist any damage from normal handling on construction sites (such as being pulled or walked on), and has proven outstanding performance when exposed to wind.

Technical Data

Product name DELTA®-MAXX TITAN
Color reflective (titanium coating)

Water vapor transmission

196.3 g/m²/24 h

ASTM E96-05, Proc. B


28.3 perms [grains/h/ft²/in Hg]

ASTM E96-05, Proc. B

Breaking load

MD 100.6 lb/2in

CD 60.2 lb/2in

ASTM D5035-06
Elongation at break

MD 55.1 %

CD 93.6 %

ASTM D5035-06
Trapezoid tearing strength

MD 58.3 lb

CD 42.1 lb

ASTM D4533-04
Tear Resistance

MD: 5640 g

CD: 7604 g

ASTM D1922-03a
Fastener pull-through force 231.7 N ASTM D3462-03
Water penetration resistance 776 cm CAN/CGSB-4.2 #26.3-95
Water impact penetration resistance no water passing

AATCC 42-2000

Flame Spread


NFPA Class A; UBC Class I

ASTM E84-09
Smoke developed


NFPA Class A; UBC Class I

ASTM E84-09
Air permeance

< 0.02 l/(s x m²) @ 75 Pa

ASTM E2178


ASTM C1371-04a
Solar reflectance

48.9 %

ASTM C1549-04
Temperature range -40 °F to +176 °F

(-40 °C to +80 °C)

Mass per unit area approx. 5.14 oz/yd² (175 g/m²)
Roll weight approx. 29 lb (13 kg)
Roll length 164' (50m)
Roll width 4' 11" (1.5 m)
Maximum UV (sunlight) exposure Always cover as soon as possible. Maximum exposure 8 weeks.

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

More Information

Overview Adhesives


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