Features:
DELTA®-DRY is installed outboard of the Water Resistive Barrier over sheathing board. It also provides excellent performance if installed in lieu of a conventional WRB, where building authorities allow this type of application. The material cuts easily with a utility knife. Seams are overlapped about 3 inches. Exterior cladding material can be installed as usual right on top of DELTA®-DRY. For further details please check the installation instructions.
DELTA®-DRY allows water vapor, driven from the interior to the exterior of the structure, to escape through the ventilated air space between the sheathing board and the membrane, while minimizing the potential for condensation that could cause damage within the building enclosure.
The membrane provides excellent drying potential through ventilation behind any approved exterior cladding. At the same time, it impedes solar-driven moisture towards the interior of the structure, such as occurs with absorptive cladding materials like adhered manufactured stone veneer, stucco, cement board siding, brick veneer, etc.
Technical Specs:
 |
| Product name |
DELTA®-DRY |
|
| Color |
silver-grey |
|
| Material |
High-density polyethylene (HDPE), stabilized (oxidation & UV) |
|
| Dimple height |
apprx. 5/16" (8 mm) |
|
| Material thickness |
0.022” (0.5 mm)
|
ASTM D1777-96 (2002) |
| Compressive Strength |
19.77 kPa (413 psf) @ 20% strain |
ASTM C695-02a |
| Fire Resistance |
B2 |
DIN 4102 |
| Flame Spread |
245 |
ASTM E84-09 |
| Smoke Developed |
15 |
ASTM E84-09 |
| Water Penetration Resistance |
118 psi (813 kPa) Watertight |
AATCC 127-1995 |
|
Water Vapor Transmission
|
22 ng/(Pa s m²)
|
ASTM E96, Method A |
|
Vapor Permeance |
0.385 perms [grains/h/ft²/in Hg] |
ASTM E96, Method A |
|
Contact surface of rainscreen to WRB
|
9% (91% open) |
|
|
Contact surface of rainscreen to cladding
|
20% (80% open) |
|
| Chemical properties |
excellent chemical resistance, rot-proof |
|
| Toxicity |
non-toxic, non-polluting
|
|
| Temperature range |
-22°F to +176°F (-30°C to +80°C) |
|
| Weight per unit area |
approx. 1.56 oz/ft² (475 g/m²) |
ASTM D5261-92 (2003)
|
| Roll weight |
approx. 15 lbs (6.8 kg) |
|
| Roll length |
50 ft (15.24 m) |
|
| Roll width |
3.3 ft (1.0 m) |
|
| Service life expectancy |
> 20 years (at pH between 4 and 9). The membrane should not be exposed to UV light for more than 30 days. |
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