EVAROC® insulation boards and sloped insulation boards for flat roofs
With EVAROC® flat roof & solar insulation boards made from high-quality rock wool and the low-fire-load, self-adhesive EVAFOL SK vapor barrier, we are not only expanding our product portfolio, but also moving from horizontal to vertical roofing.
True to the motto “Everything from a single source”, we have expanded our flat roof system, which has been tried and tested for decades, and now offer you the complete roof layer package, from vapor barriers and insulation materials to premium synthetic waterproofing membranes – system-compatible, tested, and in proven alwitra quality.
Your personal alwitra roof experts on site will be happy to advise you.
non-combustible, A1
heat insulating
pressure-resistant
permeable
chemically neutral
resistant to decay, pests, and fungal infestation
Why use rock wool insulation boards for flat roofs?
For decades, rock wool has been regarded as a high-quality, durable, and sustainable insulation material with excellent fire protection properties (A1). Its good price-performance ratio and quick and easy installation are further arguments in favor of using rock wool. Additional advantages include good thermal insulation and resistance to decay, pests, and fungal attack.
EVAROC® rock wool is non-combustible in accordance with Euroclass A1.
EVAROC® actively contributes to preventive fire protection, as the flat roof insulation board made of rock wool is non-combustible in accordance with Euroclass A1 according to DIN EN 13501-1. EVAROC® therefore meets the requirements of numerous guidelines and regulations for industrial construction, high-rise buildings, assembly halls, and retail outlets.
Technical information
| Value for EVAROC® 70-038 | Value for EVAROC® 70-040 | Value for EVAROC® G 70-040 | |
| Thermal conductivity λD (DIN EN 13162) Nominal value W/(m·K) | λD-Value 0,037 | λD-Value 0,039 | λD-Value 0,039 |
| Thermal conductivity λB (DIN 4108-4) Rated value W/(m·K) | λB-Value 0,038 | λB-Value 0,040 | λB-Value 0,040 |
| Point load at 5 mm deflection (DIN EN 12430) (N) | ≥ 800 | ≥ 1000 | ≥ 800 |
| Fire behavior (DIN EN 13501-1) | non-combustible, A1 (Euroclass) | ||
| Melting point (DIN 4102-17) (°C) | > 1000 | ||
| Temperature behavior during short-term use (°C) | < 250 | ||
| Water vapor diffusion resistance factor (DIN EN 12086) | μ = 1 | ||
| Compressive stress at 10% deflection (DIN EN 826) (kPa) | ≥ 70 | ||
| Tensile strength perpendicular to the panel plane (DIN EN 1607) (kPa) | ≥ 10 | ||
| Limit dimensions for thickness (DIN EN 823) | T4 | ||
| Dimensional stability under defined temperature and humidity conditions (DIN EN 1604) | fulfilled | ≤ 1% | |
| Short-term water absorption (DIN EN 1609) | fulfilled | ≤ 1 | |
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