|
|
Why James Hardie / Product Comparison Guide
HardieWrap™ weather barrier
| |
HardieWrap™ weather barrier |
Residential Tyvek |
Commercial Tyvek |
Perforated Housewrap |
Building Paper / #15 Felt |
Comments |
| Water Resistance AATCC127 |
325 cm |
210 cm |
280 cm |
10-25 cm |
52 cm |
Higher is better. Compared to other products, HardieWrap weather barrier is more resistant to water intrusion. |
| Water Vapor Permeance ASTM E-96A |
HZ5™ - 25 Perms
HZ10™ - 15 Perms |
58 Perms |
23 Perms |
6-18 Perms |
5-14 Perms |
ICC requires a water vapor permeance greater than 5. HardieWrap weather barrier provides sufficient drying while reducing water vapor intrusion. |
| Air Penetration Resistance TAPPI T-460 |
> 1800
Seconds/100cc |
> 1500
Seconds/100cc |
> 1500
Seconds/100cc |
8-16
Seconds/100cc |
N/A
not tested |
Higher is better. HardieWrap weather barrier is more air resistant, which increases the potential to improve energy efficiency. |
| Trapezoid Tear Strength ASTM D1117 |
18/15 lbs. |
6/6 lbs. |
10/12 lbs. |
37/49 lbs. |
.44/.44 lbs. |
Higher is better. Tears can result in leaks, leading to serious water damage and mold. |
| UV Rating Warranty |
180 |
120 |
270 |
|
|
|
|
