External Wall Insulation -
Mineral Wool
| BEWI Mineral Wool EWI is manufactured from high density non-combustible stone wool for mechanically fixed external wall insulation systems. Compatible with various render and cladding systems, including brick slips, render systems, and timber or plastic weatherboarding, BEWI Mineral Wool EWI is manufactured from stone wool crimped fibres bonded with a synthetic binder in accordance with BS EN 13162 and achieves Reaction to Fire Class A1 (non-combustible). BEWI Mineral Wool EWI offers a stable base for rendered finishes. |
Key Benefits
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Dimensions:
Standard size: 1200mm x 600mm
Standard thickness: From 60mm – 230mm
Type
BEWI Mineral Wool EWI is manufactured from stone wool crimped fibres bonded with a synthetic binder in accordance with BS EN 13162 and achieves Reaction to Fire Class A1 (non-combustible).
BEWI Mineral Wool EWI offers a stable base for rendered finishes.
Easy to install
BEWI Mineral Wool EWI is a component in an external wall insulation system and installation is to be completed by an approved installer. Installation of EWI systems must meet the requirements of the Building Regulations and any other applicable regulatory requirements.
Permanent
BEWI Mineral Wool EWI is durable and will remain effective for the life of the building; recommended fixing methods will retain the boards permanently in position.
Fire
BEWI Mineral Wool EWI is non-combustible and can be used as insulation in EWI systems for high rise buildings. Please seek advice from the system supplier as to the performance of the overall installation and refer to the national Building Regulations for types of buildings and any product restrictions / exclusions that may apply prior to use and or inclusion in any specification.
Compliance
BEWI Mineral Wool EWI conforms to the required properties as defined in BS EN 13162 – Thermal Insulation products for buildings – Factory made mineral wool (MW) products -Specification.
Thermal Resistance (R value)
The thermal resistance or R-value of External Insulation boards for the following standard thicknesses is:
| Board thickness | |
| 60mm | 1.70 m²K/W |
| 75mm | 2.00 m²K/W |
| 80mm | 2.25 m²K/W |
| 90mm | 2.55 m²K/W |
| 100mm | 2.85 m²K/W |
| 110mm | 3.10 m²K/W |
| 120mm | 3.40 m²K/W |
| 130mm | 3.70 m²K/W |
| 140mm | 4.00 m²K/W |
| 150mm | 4.25 m²K/W |
| 160mm | 4.55 m²K/W |
| 170mm | 4.85 m²K/W |
| 180mm | 5.10m²K/W |
| 190mm | 5.40 m²K/W |
| 200mm | 5.70 m²K/W |
| 210mm | 6.00m²K/W |
| 220mm | 6.25 m²K/W |
| 230mm | 6.55 m²K/W |
