fire barrier - METRA ZERO

brevettopatent

Breathable and waterproofing underlay

BREATHABLE BREATHABLE
COATING COATING
WATER - PROOFING WATER - PROOFING
UV RESISTANCE UV RESISTANCE
FIRE
PROTECTION FIRE PROTECTION
ROOF + WALL ROOF + WALL
CHARACTERISTICS

Highly breathable underlay that combines waterproofing properties, vapour permeability, mechanical resistance with extraordinary properties of fire reaction.

APPLICATIONS

Placed in direct contact with the thermal insulation on the cold side of the structure, it allows a rapid evacuation of excess water vapor through the under-tile ventilation, helping to improve the thermal properties of the insulating material.
The particular fireproof surface finish allows the product to be laid in coverage directly under the photovoltaic panels or in ventilated façades with open joints.

DATA SHEET
CHECKED CHARACTERISTICS NORM UNIT OF MEASURE VALUE
Massa per unit area EN 13859-1 g/m2 720±5%
Thickness EN 1849-2 mm 1,2±15%
Tensile Strength EN 13859-1 N/5cm MD: 300±15%
CD: 275±15%
Elongation EN 13859-1 % MD: 2-3%
CD: 2-3%
Nail tearing EN 13859-1 N MD: 180±15%
CD: 220±15%
Resistance to water penetration EN 13859-1   Class W1
Water impermeability EN 20811 m Minimum value: 2
Artificial ageing
Tensile strenght after ageing
Resistance to water penetration after ageing
EN 13859-1 N/5cm MD: 285±15%
CD: 234±15%
Class W1
Artificial ageing (5000h uv + 90 days 70°C)
Tensile strength after ageing
Resistance to water penetration after ageing
EN 13859-2 N/5cm MD: 290±15%
CD: 240±15%
Classe W1
UV resistance Internal method   12 months
Water vapour transmission properties EN 13859-1 g/m² x 24h
m
m2sPa/Kg
WDD: 250±20%
Sd=0,08±0,2
4,3 x 108
23°C 93/50% UR
  UNI 11470 Membrana altamente traspirante
Dimensional stability EN 13859-1
(80°C)
% MD: -1<ΔL<0
MD: -1<ΔL<0
Flexibility at low temperature EN 13859-1 °C -20
Fire reaction EN 13501-1
Test method:
EN 11925-2 and
EN 13823 (SBI)
EN 13501-5
UNI CEN/TS 1187
 

B s1 d0


Broof (t2)

Resistance to air penetration EN 12114
Δp max 100Pa
0,5m2<A<1m2
m3/(m2xhx50Pa) <1,3

Product subject to CE mark according to EN 13859-1/EN 13859-2
Certificates of costancy of performance No. N°0402_CPR-SC1032-17, N°0402_CPR-SC1033-17 issued by the notified certification
body N°0402 (RI.SE)

DOCUMENTI
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dove siamo Via Postumia Ovest 226 - Olmi - 31048 San Biagio di Callalta TV
dove siamo +39.0422.1830465 +39.0422.1830465