Description

Hybrid waterproofing coating for roofs with UV cross linking system. It is certified product, with high reflectance and total emittance providing thermal insulation. It forms a non-penetrating against moisture film with resistance to extreme low temperatures up to -35oC. Basic application is also the coating of the mineral bitumen membrane with gravity stone.

Fields of Application

  • Roofs made of concrete, cement boards, mosaic, cement slurries
  • Rooftops with resistance to stagnant water
  • Mineral bitumen membranes
  • Metallic surfaces
  • Beside and under photovoltaic panels, enhancing their efficiency
  • Air-conditioning tubes
  • New or old polyurethane waterproofing layers
  • Thermal-insulating polyurethane panels and polycarbonate panels
  • Glass surfaces
  • Galvanized metal sheets and bituminous membranes with aluminium sheet surface
  • Over old roofing made of asbestos

(Upon some surfaces above, it is necessary to prime them with the appropriate each time primer, before Neoroof® application)

Properties and advantages

  • It is easily applied and dries into a smooth film that covers capillary cracks and provides total protection against moisture.
  • Neoroof® has a UV cross-linking system incorporated, designed to give very good dirt pick-up resistance. After 2 days exposure to direct sunlight the film is no tacky even under high temperatures.
  • It is not affected by adverse weather conditions and maintains its elasticity for temperatures from -35oC to +80oC, offering excellent impermeability to water.
  • It reflects the solar radiation and significantly reduces the energy consumption during summer period
  • Due to high reflectance and total emmitance, it decreases the temperature of the external surface that is exposed directly to the sun, up to 40%.
  • It offers cool atmosphere during summer and energy consumption reduction for air-conditioning.
  • Eco-friendly contributing to the elimination of the ‘urban heat island’  phenomenon and to the atmosphere pollution restriction, due to CO2 emissions decrease.
  • It delays the aging of the mineral bitumenous membrane
  • Certified with CE (EN 1504-2)

Technical Characteristics

  • Appearance: viscous liquid
  • Density (EN ISO 2811-1:2011): 1,297 g/cm3
  • Coverage: 500 -700 gr/m2 for two coats (cementitious surface),1-1,25 kg /m2 for two coats (mineral bitumenous membrane), 400 gr/m2 (metallic surface)
  • Drying time: 2-3 h initially at 25oC
  • PH(ISO 1148): 8-9
  • Bond Strength (EN 1542:2001): 1,47 N/mm2
  • Absorption Coefficient (24h) (EN 1062-3:2008): 0,00 kg/m2
  • Vapor Permeability Λ (EN 7783-1:1999): 0,0019 g/cm2 d-1
  • Resistance coefficient in diffusion μ (EN 7783-1:1999): 141,4777
  • Factor Sd (EN 7783-1:1999): 0,62m
  • Permeability CO2 (EN 1062-6:2002 Method A): 0,21 g/(m2 d)
  • Factor resistance μ (EN 1062-6:2002 Method A): 120228
  • Factor Sd (EN 1062-6:2002 Method A): 529,00 m
  • Hardness shore A (ASTM D2240): 44
  • Dry to recoat: 24 h at 25oC  (low temperatures and high humidity prolong drying)
  • Reflectance (%): 91,8% (Visible: 400-750 nm)*
  • Total Reflectance (SR%): 88%*
  • Solar Reflectance Index (SRI): 111 (ASTM E1980-01)
  • Total Emittance: 0,86 (ASTM E408-71)

* (ASTM E 903-96), (ASTM G159-98)

– CRES- Laboratory for Energy Tests
– University of Athens