Basetherm
| BEWI Basetherm is a high performance external wall insulation board that is engineered to insulate the wall below the damp-proof course and provide an impact proof base board.
Basetherm board is made of expanded polystyrene (EPS) which maintains the thermal performance of the insulation even in a damp environment and is designed for use in conjunction with BEWI External Wall insulation. |
Key Benefits
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Dimensions:
Standards size : 1200mm x 1200mm
Standard Thicknesses: 50mm or 100mm*
Key properties:
200 Grade – High density EPS
Compressive strength – 200kPa
Tensile Strength – minimum 100kPa
Flatness – 3mm
Fire Resistance – Class E
Performance:
Compressive strength at 10% deformation (kPa) BS EN 13163
Tensile Strength BS EN 1607
Fire Classification BS EN 13501-1
Thermal Resistance (R values):
| Standard Board Thickness* | EPS 200E white (thermal conductivity of 0.034 W/mK) |
| 50mm | 1.45 m²K/W |
| 100mm | 2.90 m²K/W |
* other sizes are available to order
Standards:
BEWI products are produced to the requirements of the BS EN 13163 Thermal Insulation Products for Buildings – Factory Made Products of Expanded polystyrene (EPS) specification.
BEWI has been assessed and approved to the BS EN ISO 9001:2000 Quality System for quality assurance in production, installation and servicing.
Water vapour transmission:
BEWI EWI offers significant resistance to the passage of water vapour, but should not be regarded as a vapour-control layer. Condensation calculations covering typical environmental conditions show that the dew point of an external-wall insulation system will occur on the external face of the insulation. This is the ideal situation.
Fire:
Any necessary fire performance should be provided by the facing material and the system design.
Downloads — Basetherm
