The figures below are anticipated U-values calculated through a typical external wall make-up. Calculations can be provided on request, these should then be passed to your SAP assessor and used as part of their overall dwelling calculations.
U-Value = 0.21W/m2K
- 20mm Render on external blockwork with a 50mm clear cavity
- Protect TF200 Thermo external breather paper
- 9mm OSB3 Category 1 racking board
- 040 Timber frame batt semi-rigid insulation installed between 140mm timber frame
- Protect VC Foil vapour control layer to inside face of frame
- 38mm Service battens to inside face
U-Value = 0.17W/m2K
- 20mm Render on external blockwork with a 50mm clear cavity
- Protect TF200 Thermo external breather paper
- 9mm OSB3 Category 1 racking board
- 035 Timber frame batt semi-rigid insulation installed between 140mm timber frame
- Photon Foil vapour control layer to inside face of frame
- 38mm Service battens to inside face
U-Value = 0.15W/m2K
- 20mm Render on external blockwork with a 50mm clear cavity
- Photon Frame external insulated breather paper (site applied)
- 9mm OSB3 Category 1 racking board
- 035 Timber frame batt semi-rigid insulation installed between 140mm timber frame
- Photon Foil vapour control layer to inside face of frame
- 38mm Service battens to inside face
U-values supplied by TSK Ltd, calculated by the SIG360 Technical Centre