Technical Data Sheet

KORE_Key_Technical.png Download a copy of KORE Key Technical Data Sheet. For further infoamtioon please contact our technical team.

U-Value Calculation 

The U-value (W/m2K) of KORE Key is calculated with the inclusion of the partial fill cavity wall insulation (KORE Key Silver) and the internal drylining insulation (KORE Linear Drylining).

The KORE Linear Drylining panels consist of 12.5mm plasterboard bonded to White Standard Density EPS Insulation. The thickness of insulation required is indicated in the table above.

 

U-value 

Standard Cavity Block Wall
 W/m2K  KORE Key Silver(mm)      Plus      KORE Linear (mm)
 0.27          65mm                                   35mm
 0.26          65mm                                   40mm
 0.25          70mm                                   40mm
 0.24          75mm                                   40mm
 0.23          80mm                                   40mm
 0.22          85mm                                   40mm
 0.21          90mm                                   40mm
 0.20        100mm                                   40mm

 

 

 *It is assumed that the cavity walls will be constructed in accordance with the requirements of of the 1997 to 2007 Building Regulations.

Physical Properties

 

Properties  Units   Density
   kg/m³  15-20 Standard 20-25 Standard 

 WHITE EPS
 Thermal Conductivity W/mK  0.037  0.034 
 Compressive Strength kPa   >95  >211
 Bending Strength kPa   >171.70  >377.10
 Dimensional Strength  DS(n)  2  2

 SILVER EPS
 Thermal Conductivity  W/mK 0.030   0.028
 Compressive Strength  kPa  >95  >211
 Bending Strength  kPa  >171.70  >377.10
 Dimensional Strength  DS(n)  2  2

 

Installation

  1. It is recommended that the inner leaf of block work is constructed ahead of the outer leaf. The first run of boards may commence below the DPC level to provide floor edge insulation for typical construction.
  2. After every second course of block work the KORE Key boards are placed tightly against the inner leaf in the cavity and held in place by the wall ties. Always ensure that the tongue is facing upwards and that the mortar key is filled when laying the mortar bed. Vertical joints should be staggered.
  3. KORE Key boards should be overlapped at corners and secured using wooden skewers. KORE Key should be installed with a minimum residual cavity of 40mm in accordance with TGD Part L.
  4. When installing the KORE Linear Drylining panels fix continuous horizontal battens to the wall at ceiling and floor level leaving 20mm clear space. The KORE Linear Drylining panels are then fixed directly to the inner face of the drywall constructed using drywall adhesive.
  5. To accommodate the battens remove a strip of insulation from the top and bottom of each of the KORE Linear Drylining panels.
  6. Apply drywall adhesive to the KORE Linear Drylining panels and lift into place, applying pressure to achieve a full and secure bond.
  7. To ensure a fully effective fire stop nail the KORE Linear Drylining panels to the battens at the top and bottom of the sheet.

 

 Wall Tie Spacings
   Horizontal Spacing  Vertical Spacing
100-110mm Cavity   750mm  450mm
111-150mm Cavity  450mm  450mm
 At unbonded jambs  150mm from opening  300mm