Insulated Upstand Board Extruded Polystyrene
Verified by manufacturer 5 months ago
Stone Mineral Wool Insulated Upstand Board
Stone Mineral Wool Insulated Upstand Board
Composite board used to provide a reduction of heat loss and stop cold bridging through typical upstand and parapet walls.
Application
- Flat roof designs.
- Thermal insulation of upstand and parapet walls.
Description
The composite board is available with 2 different insulants, an extruded polystyrene (XPS) and a non-combustible mineral wool bonded onto a 6mm fibre cement board. The finished product has a straight edge profile with smooth surface.
Features and benefits:
- Mineral wool composite board classified as Euroclass A1 to BS EN 13501-1.
- High durability.
- Resistant to impact damage on site.
- Wide range of thicknesses available.
- Bespoke cutting available.
- Smooth appearance.
General information
Color | White Guidance for specification option: Fibre cement board facing. |
Finish | Smooth |
Material | Stone wool Extruded polystyrene (XPS) |
Shape | Rectangle |
Length | 1200 mm |
Width | 600 mm |
Uniclass | |
CAWS | J21/415 Extruded polystyrene (XPS) insulation J41/415 Extruded polystyrene (XPS) insulation J42/415 Extruded polystyrene (XPS) insulation J21/25 Warm deck roof insulation J41/430 Warm deck roof insulation J31/332 Extruded polystyrene (XPS) insulation |
Specification data - Extruded polystyrene (XPS) boards
Classification data | |
Water vapour permeability | Manufacturer guidanceThe XPS content of the XPS Upstand Board has a high water vapour resistivity. Where high water absorption is of concern the XPS Upstand Board may be deemed suitable. |
Face size (length x width) | 1200 x 600 mm. |
Facing | Fibre cement board. |
Surface | Smooth. |
Profile | Straight edge. |
Thermal resistance | Manufacturer guidanceDependent on the overall thickness of product. |
Weight | 8.39 kg/m2. 6.05kg per 600 x 1200 mm sheet. |
Fire performance | Euroclass A1 to BS EN 13501-1. |
Thermal conductivity (maximum) | 0.036 W/mK. Guidance for specification option: For stone mineral wool insulation only. Thermal conductivity of fibre cement board is 0.24 W/mK. |
Thickness | 36–106 mm. Manufacturer guidanceIncludes insulation and 6 mm fibre cement board. |
Material | Stone mineral wool. |
Sustainability data
Material | Stone wool Extruded polystyrene (XPS) |
Literature
Mayplas Insulated Upstand Board - TDS issue 2 10 2025