Sandwich panel SPB WS energy (FM Approved)

Sandwich panel SPB WS Energy is available in thicknesses 160 - 230 mm.

It ensures excellent air-tightness and energy efficiency. The application of special solutions with structural details and assembly services provided by skilled and certified contractors enable to decrease energy costs of the building and its CO2 emissions up to 20%. Using Ruukki's solutions you can receive more credits in LEED and BREEAM certification systems.

It is a perfect solution for most buildings and structures, combining high quality with very good technical properties. Advanced technology contributing to the improvement of panel strength ensures very good mechanical properties of this sandwich panel. 

With the filling consisting of non-combustible and environmentally friendly hard mineral wool, this sandwich panel ensures excellent fire resistance. Properly milled core increases air-tightness and contributes to outstanding sound insulation.  

SPB WS Energy sandwich panel, in thicknesses 160, 170, 180, 200 and 230 mm, is available also with FM Approved certificate granted by the world-biggest insurance company FM Global. The global certificate received based on 4880 and 4881 standards confirms that a building’s envelope made of these sandwich panels from Ruukki ensures the highest safety level in case of fire or hurricane.




  • External walls (standard fix)

The information on our website is accurate to the best of our knowledge and understanding. Although every effort has been made to ensure accuracy, the company cannot accept any responsibility for any direct or indirect damages resulting from possible errors or incorrect application of the information of this publication. We reserve the right to make changes.

Copyright © 2019 Ruukki Construction. All Rights Reserved.

    Model name
    Sandwich panel SPB WS energy (FM Approved)
    Standard module width
    1100 mm
    Optional module width (B)
    1000 mm
    Minimum length
    2000 mm
    Maximum Length
    12000 mm
    External facing thickness
    0.60 mm
    Internal facing thickness
    0.50 mm
    Air Tightness n50 (1/h)
    q50 = 1,0 m3/(m2*h) for Ruukki Energy system, entire building

    Properties by panel thickness

    Thickness D (mm) 160 170 180 200 230
    Weight (kg/m2) 29.6 30.8 32 34.4 38
    U-value (W/m2K) 0.27 0.26 0.24 0.22 0.19
    Sound insulation Rw (dB) 32 32 32 32 32
    Reaction to fire A2-s1, d0 A2-s1, d0 A2-s1, d0 A2-s1, d0 A2-s1, d0
    Wall fire resistance values & max span horizontal / vertical orientation (m):
    EI 30 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5
    EI 60 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5
    EI 90 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5
    EI 120 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5 7.5 / 7.5
    All properties are declared in accordance with EN 14509 and related standards.

    Changes to sandwich panel fire resistance standards (wall applications)

    Coatings and colours


    Facing Coating Corrosion class UV resistance  Colours
    External GreenCoat HIARC MAX C4 Ruv4  RAL7035, RAL9006, RAL9007
    External  Polyester C3 Ruv2-3  RAL1015, RAL5005, RAL7015, RAL7016, RAL7035, RAL9002, RAL9006, RAL9007, RAL9010
    Internal Polyester C3 RAL9002, RAL9010

    UV resistance describes how well the coating is able to keep its original colour and gloss levels in accordance with EN10169. The higher the class, the better the resistance.

    Corrosivity categories describe the outdoor climate conditions in accordance with EN12944. The higher the category, the more corrosive environment.

    Read more about UV-resistance and corrosivity categories.


    For external facings of 1000 mm module width only the following colors are available: RAL 9010, RAL 9002, RAL 9006, RAL 9007.

    Profile options

    Modular width Facing Profile options
    1100mm External L, M, R275, R550, F
      Internal L, L25, F
    1000mm External L, M, R28, R250, R500, F
      Internal L, L25, F 
    Design tools
    To make both architectural and structural design work easier, with accurate product information in 3D form, we offer a selection of CAD / BIM -objects and software tools, which can be downloaded from the Software Toolbox portal.

    Ready modelled BIM objects

    Download objects for ArchiCAD
    Download objects for Revit

    Software tool TrayPan for choosing the optimal panel type

    User-friendly TrayPan software takes into account load, temperature, span, U-value, fire resistance and acoustics. 
    TrayPan contains two user interfaces:
     - Optimisation tool for quick and easy pre-selection
     - Designer version for detailed structural analysis.

    Download Traypan

    Detail drawing (.dwg)

    Detail drawing (.pdf)

    Load & span tables for dimensioning panels against loads

    Sound insulation values

    Accessories for sandwich panels include flashings, fasteners, gaskets, and sealing flanges.

    These accessories ensure fast assembly, fastening reliability, joint tightness, and aesthetic improvement. They are suitable for external and internal wall surface construction, as well as roofs - for construction projects of various sizes at any destination.

    Assembly instructions

    Assembly instructions document includes information about:

    • Packing
    • Transportation and unloading
    • Storing
    • Assembling

    Maintenance instructions

    Maintenance instructions document contains information about:

    • Washing
    • Painting

    Product descriptions

    Product description includes information about:

    • Panel structure
    • Structural dimensioning
    • Panel packaging
    • Windows and corner panels
    • Panel fastening

    Facade cladding instructions

    Ruukki Forma design instructions explain how to design façade cladding systems on top of Ruukki sandwich panels.