Commercial | Residential | Multifamily | Wall
Engineered to increase R-value in wall systems
Effective in any season, Tyvek? ThermaWrap? LE protects against heat loss in the cold weather and keeps heat out in when the temperature rises. A low-emission surface helps to raise R-values for wall assemblies.
Featured Resources
Tyvek? ThermaWrap? LE
k8ÓéÀÖ??Tyvek??ThermaWrap??LE is made with a metallized, low-emission (low-e) surface that reflects solar radiation away from the building.?In cold weather, this helps prevent radiant heat loss from within the structure. In warmer weather, Tyvek??ThermaWrap??LE turns the tables, reflecting warm air out and away from the structure, to help improve air-conditioning efficiency. In all seasons, that can help make both residential homes and commercial buildings more comfortable, more energy efficient, and less costly to operate.
Features & benefits
| Helps block air infiltration and exfiltration |
|
| Improves energy efficiency |
|
Physical Properties
| Method | Unit | Value | |
|---|---|---|---|
| Effective R-value (including 3/4" air space)<sup></sup> | ASTM C1371 | - | R-2 |
| Air Penetration Resistance<sup></sup> | Gurley Hill (TAPPI T-460) | sec/ 100cc | 900 |
| ASTM E2178 | cfm/ft2 @ 1.57 psf | 0.002 | |
| Water Vapor Transmission<sup></sup> | Method B | perms | 68 |
| ASTM E96-00 | g/m2-24 hrs | 475 | |
| Water Penetration Resistance<sup></sup> | AATCC 127 | cm | 210 |
| Basis Weight<sup></sup> | TAPPI T-410 | oz/yd2 | 2.5 |
| Breaking Strength<sup></sup> | ASTM D882 | lbs/in | 29/27 |
| Tear Resistance (Trapezoid)<sup></sup> | ASTM D1117 | lbs | 44172 |
| Surface Burning Characteristics<sup></sup> | Developed Index | - | Class A |
| Developed Index | - | Class A | |
| Developed Index | - | Class A | |
| ASTM E84 | - | 10 | |
| Ultra Violet Light Exposure (UV)<sup></sup> | - | - | 120 days (4 months) |
Available Sizes
| Roll width (ft.) | Roll length (ft.) | Roll coverage (ft.<sup>2</sup>) |
|---|---|---|
| 5 | 50 | 250 |
| 9 | 33 | 297 |
? 2022 k8ÓéÀÖ de Nemours, Inc. All rights reserved.? k8ÓéÀÖ?, the k8ÓéÀÖ Oval Logo, and all products, unless otherwise noted, denoted with ?, ? or ? are trademarks, service marks or registered trademarks of affiliates of k8ÓéÀÖ de Nemours, Inc.