Thermal insulation for our purposes is expressed as a U value. The lower these figure the greater the thermal efficiency of the component.

Current building regulations require a U value of an external wall to be 0.35w/sqmK.

The Styro Build block (Sunbloc)provides the following U value:

 

  • 250mm Styro Blocks = 0.26 w/sqmk   

 

           

                            

                                 

                                                            


Styro Build components have tongues on the top and grooves on the bottom, arranged so that they will interlock in parallel or at right angles in a modular grid of 62.5mm.

This means the designer can realise any plan layout to dimensions which are a multiple of 62.5mm. Smaller site dimensions may be cut exactly to size within the thickness of polystyrene once the concrete is cured.

 

 

         Features of the Styro Build System:

  1. The tongues on the top and groves on the bottom of components are arranged to interlink and crosslink in a modular grid of 62.5mm.
  2. The tongues and grooves have a positive interlock so that the elements cannot be carried away by a gust of wind.
  3. The hollow core of the components is calculated to optimise economy of design and building processes.
  4. All faces have grooves 2.5mm deep and 17.5mm wide in a pattern repeated every 62.5mm to eliminate thermal bridging. These grooves have a dovetail profile to provide a mechanical key for the application of plaster.
  5. Location detail for horizontal reinforcement.
  6. End pieces are inserted above and below the bridges to make a closure when forming corners, reveals and wall ends.
  7. The bridges are tapered at the top and bottom to avoid trapping air during concreting.
  8. The firewall endpiece is used to form the closure where this does not coincide with the bridge.