DuPontTM Tyvek® Airguard is the vapor isolation that improves the effectiveness of thermal insulation with metallized layer for walls and ceiling.
This membrane is used for vapor isolation of ceiling and walls, because it is 100 per cent hermetic to air convection and has the surface of very small emission. This increases the effectiveness of thermal isolation of the building a lot. DuPontTM AirguardTM stops uncontrolled air flows inside the building and creates better thermal insulation, which serves as the basis for creation of comfortable and energy-saving house.
Environmental protection
The products of DuPont™ Climate Systems have big positive influence on the environmental protection – they contribute to the reduction of CO2 gas emitted to the environment, because the amount of fuel used to heat the buildings, is reduced.
Name: 5814X; AirGuard® 
Composition of the material: PP, PE & Al
| PARAMETERS | CLASSIFICATION | UNIT | NOMINAL VALUE (average) | TOLERANCES | |
| Min. | Max. | ||||
|
Roll’s length |
EN 1848-2 | m | 50 | 0 | - |
|
Roll’s width |
EN 1848-2 | m | 1,5 | -0,5 % | +1,5 % |
|
Roll’s size |
- | m² | 75 | - | - |
|
Tolerance of material’s size |
EN 1848-2 | mm/10 m | - | - | 75 |
|
Weight |
EN 1849-2 | g/m² | 149 | 134 | 164 |
|
Membrane thickness |
EN 1849-2 | mm | 0,43 | 0,33 | 0,83 |
|
Classification, according to inflammability |
EN 11925-2 | Class | E | Test of the mineral wool | |
|
Waterproofness |
EN 1928 (method A) | - | Pass | - | - |
|
Sd coefficient |
EN 1931 | m | 2000 | 500 | - |
|
Water vapor flux (g) |
EN 1931 | kg / (m²s) | 2,04 x 10-10 | - | 8,04x10-10 |
|
Resistance to stretching (MD) |
EN 12311-1 | N/50 mm | 440 | 350 | - |
|
Elongation during stretching (MD) |
EN 12311-1 | % | 25 | 15 | - |
|
Resistance to stretching (XD) |
EN 12311-1 | N/50 mm | 210 | 150 | - |
|
Elongation during stretching (XD) |
EN 12311-1 | % | 22 | 15 | - |
|
Resistance to rupture (nails) MD |
EN 12310-1 | N | 230 | 150 | - |
|
Resistance to rupture (nails) XD |
EN 12310-1 | N | 250 | 150 | - |
|
Resistance to shock |
EN 12691 | mm | No data | - | - |
|
Strength |
EN 12317-2 | N/5 cm | - | 80 | - |
|
Water vapor impermeability |
EN 1931 | Pass/ Fail | Pass | ||
|
Durability (alkali) |
EN 12311-11 EN 12311-11 |
Pass/ Fail |
Pass Pass |
||
|
Additional information |
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|
Temperature range of usage |
- | °C | - | -40 | +80 |
|
„Bendtsen” Air permeability |
ISO 5636/3 | ml / min | 0 | - | - |
|
„Gurley” Air permeability |
ISO 5636/5 | s | - | > 2000 | ∞ |
|
Radiation |
DIN EN 673 | - | 0,05 | - | - |
|
Effective R value |
EN 6946 (estimated) (estimated) |
m2 K/W m2 K/W |
0,66 0,45 |
- - |
- - |
It satisfies the requirements of the standard LST EN 13859-1:2005 + A1:2009 “Flexible sheets for waterproofing - Definitions and characteristics of underlays - Part 1: Underlays for discontinuous roofing” and its supplement ZA.
Made by DuPont, Luxembourg
