Metra zero
brevetto patent
Breathable and waterproofing underlay
VAPOUR BARRIER
POLYESTER CARRIER
ANTISKID
WATER - PROOFING
LIGHT
ROOF
Waterproof and breathable underlay with a revolutionary treatment: it moves insects, mites, moulds and bacteria away from the roof. This special additive is included in the polymer matrix of non woven bers, lms or coatings which the underlay is made of.
Underlay for discontinuous roofing and for walls with antimicrobial and anti insect properties.
ACTION OF THE TREATMENT
Against bacteria
Against moulds
Against fungi
Against algae
Against house dust mites
Against mosquitoes and other insects
CHARACTERISTICS OF THE TREATMENT
Organic product that uses nanotechnology
Biodegradable additive to 98%
Does not emit volatile organic compounds
Contains no heavy metals
Non-irritant and non-sensitising
Not sensitive to UV rays
| CHECKED CHARACTERISTICS | NORM | UNIT OF MEASURE | VALUE |
|---|---|---|---|
| Mass per unit area | EN 13859-1 | g/m2 | 150±10% |
| Thickness | EN 1849-2 | mm | 0,7±15% |
| Tensile Strength |
EN 13859-1 |
N/5cm | MD: 300±15% CD: 215±15% |
| Elongation | EN 13859-1 | % | MD: 75-95% CD: 65-85% |
| Nail Tearing | EN 13859-1 | N | MD: 165±15% CD: 180±15% |
| Resistance to water penetration | EN 13859-1 | Class W1 | |
| Water impermeability | EN 20811 | mm | 4 (avarage value) Minimum: 2 |
| Artificial ageing Tensile Strength after ageing Resistance to water penetration after ageing |
EN 13859-1 | N/5cm | MD: 270±15% CD: 218±15% Class W1 |
| UV resistance | Internal method | 6 months | |
| Water vapour transmission property | EN 13859-1 | g/m² x 24h m |
WDD: 850±15% Sd= 0,02 23°C 93/50% RH |
| g/m² x 24h | WDD: 2000±15% 38°C 93/50% RH |
||
| Dimensional stability | EN 13859-1 (80°C) |
% | MD : -0,8<ΔL<0 CD : -1<ΔL<0 |
| Flexibility at low temperature | EN 13859-1 | °C | -40 |
| Fire reaction | EN 13859-1* *Product supported by wooden board |
E | |
| Air permeability | EN 13859-2 | m3/h m2 | <0,3 |
For information regarding use, handling. storage and security see DOP
Product subject to CE mark according to EN 13859-1
* data from one production, they could be updated
Smart membranes for advanced buildings
Breathable and waterproofing underlay
Underlay with a revolutionary treatment: it moves insects, mites, moulds and bacteria away from the roof
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Underlay composed by 3 layers in polypropylene welded with ultrasonic technology.
Consulting, dialogue, creating tailor-made solutions is what we do best. We love coming to grips with new ideas and finding effective answers. Please feel free to contact us via mail or telephone for advice, for a project, or to find out more technical information.
Via Postumia Ovest 226 - Olmi - 31048 San Biagio di Callalta TV
