DuPontTM Tyvek® Pro + Tape – two-layer breathing diffusive membrane with adhesive tape for walls and roofs.
The product of exclusive characteristics is received thanks to the unique production technology of high level. It is completely impermeable to wind and water, but it also has high characteristics of vapor permeability. The Tyvek® products have an exceptionally thick functional layer, which makes the product durable and lasting. The membrane is laid directly on the heating material without leaving any additional gap for air.
Tyvek® Pro + Tape This is one of the strongest and most durable breathing membranes, thus it perfectly for the roofs with planking, or roofing of tin, fictile tiles, etc.
The additionally integrated adhesive tape provides special tightness and protection from wind and water. It suits especially well for roofs with small slope.
Name: 2508B Tyvek® Pro 
Composition of the material: HD - PE & PP (polyethylene of high density with polypropylene)
| 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/10m | - | - | 30 |
|
Weight |
EN 1849-2 | g/m² | 124 | 110 | 138 |
|
Thickness of the functional layer = thickness of membrane |
- | μm | 175 / 380 | - | - |
|
Classification, according to inflammability |
EN 11925-2 | Class | E | ||
|
Waterproofness |
EN 1928 (method A) | Class | W1 | - | - |
|
Sd coefficient |
EN ISO 12572 | m | 0,02 | 0,005 | 0,035 |
|
Resistance to stretching (MD) |
EN 12311-1 | N/50 mm | 270 | 210 | 330 |
|
Elongation during stretching (MD) |
EN 12311-1 | % | 14 | 9 | 19 |
|
Resistance to stretching (XD) |
EN 12311-1 | N/50 mm | 225 | 180 | 270 |
|
Elongation during stretching (XD) |
EN 12311-1 | % | 23 | 16 | 30 |
|
Resistance to rupture (nails) MD |
EN 12310-1 | N | 140 | 100 | 180 |
|
Resistance to rupture (nails) XD |
EN 12310-1 | N | 150 | 100 | 200 |
|
Resistance to air penetration |
EN 12114 | m³/(m² h 50 Pa) | - | - | 0,25 |
|
Stability of dimensions (MD & XD) |
EN 1107-2 | % | - | - | 1 |
|
Durability at low temperature |
EN 1109 | °C | - | - | -40 |
|
Data after artificial aging |
EN 1297 & EN 1296 EN 12311-1 EN 12311-1 EN 12311-1 EN 12311-1 EN 1928 (A) |
% % % % Class |
Residual value 90 85 90 85 W1 |
- - - - - |
- - - - - |
|
Additional information |
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|
Temperature range of usage |
- | °C | - | -40 | +100 |
|
Resistance to UV rays |
- | months | - | - | 4 |
|
Height of water pillar |
EN 20811 | m | 2 | - | - |
|
Impermeability to wind |
- | - | Yes | - | - |
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
