alwitra Flachdachdämmplatten
Flat roof insulation board and sloping board made of rigid polyurethane foam (PIR)
EVAPIR & EVAPIR G
EVAPIR® – High-performance insulation boards for flat roofs
EVAPIR® flat roof insulation boards made of rigid polyurethane foam (PIR) offer maximum thermal insulation with minimum installation height. The aluminum composite foil on both sides ensures high stability and protection. With an insulation value of WLS 023, they enable energy-efficient, lightweight roof solutions – ideal for lightweight industrial roofs and mechanically fastened roof systems.
Advantages:
• Excellent insulation value (WLS 023)
• Low installation height and bulk density
• Easy processing and cost-efficient transport
• Suitable for loose laying under ballast
• Suitable for used roof areas in accordance with DIN 18531 (e.g., for photovoltaics)
EVAPIR® – lightweight, efficient, and powerful for modern flat roof constructions.
EVAPIR® G flat roof sloped insulation board
EVAPIR® G flat roof sloped insulation boards are the ideal solution for flat roofs without an existing slope. Made from rigid polyurethane foam (PIR) and laminated on both sides with a multi-layer, silver-colored aluminum composite foil, they offer high insulation performance with minimal installation height.
The flexible modular system consisting of 4 sloped insulation boards allows easy adaptation to different roof shapes and ensures efficient drainage. The low bulk density reduces transport and installation costs.
Advantages:
• Integrated slope (2%) for efficient drainage
• Excellent insulation value (WLS 023)
• High flexibility thanks to modular system
• Low installation height and weight
• Suitable for mechanically fastened roofs and loose installation under ballast
• Application in accordance with DIN 4108-10: DAA
EVAPIR® G – lightweight, efficient, and flexible sloped insulation for modern flat roofs.
| EVAPIR insulation board | EVAPIR G Gradient insulation board | |
| Thermal conductivity λD (EN 13165) Nominal value | λD-Value 0,022 W/(m·K) | λD-Value 0,022 W/(m·K) |
| Thermal conductivity λB (DIN 4108-4) Rated value | λB-Value 0,023 W/(m·K) | λB-Value 0,023 W/(m·K) |
| Standard dimensions (EN 822:2013) | 1200 x 600 mm, 2400 x 1200 mm | 1200 x 1200 mm |
| Functional dimensions (EN 822:2023) | 1200 x 600 mm, 2380 x 1180 mm | 1200 x 1200 mm |
| edge processing | Smooth or circumferential step rebate | Smooth |
| Behavior in case of fire (EN 13501-1:2018) | E | E |
| Density (EN 1602:2013) | ca. 30 kg/m3 | ca. 30 kg/m3 |
| Compressive stress at 10% deflection (EN 826:2013) | ≥ 120 kPa | ≥ 120 kPa |
| Dimensional stability - length and width (EN 1604:2013, 48 hours, 70°C at 90% RH) | ≤ 2,0% | ≤ 2,0% |
| Dimensional stability - length and width (EN 1604:2013, 48 hours, -20°C) | ≤ 1,0% | ≤ 1,0% |
| Closed cell content (EN ISO 4590:2016) | ≥ 90% | ≥ 90% |
| Application type (DIN 4108-10:2021-11) | DAA dh, DEO dh, DI, WZ | DAA dh |
Downloads
EVAPIR® Downloads
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