1. Sefaira Support
  2. General Information
  3. Baselines

South African Baseline: SANS204 (2011)

Target Energy Consumption (kWh/m2.year)

See: SANS204 Table 2

Plugin Values

  Climatic Zone
  1 2 3 4 5 6
Wall Insulation (W/m2.K) 0.46 0.53 0.53 0.53 0.53 0.46
Floor Insulation (W/m2.K) 0.67 1 1 1 1** 1
Roof Insulation (W/m2.K) 3.7 3.2 2.7 3.7 2.7 3.5
Glazing U-Factor (W/m2.K)* 3.6
Visible Light Transmittance** 0.72
Solar Heat Gain Coefficient 0.57
Heating Efficiency** 0.85
Cooling Efficiency** 3
Infiltration Rate (m3/m2.h)** 3
Ventilation Rate (L/m3.s) 0.75
Appliance** 4 
Lighting** 4 
Daylight Response Efficiency** 0 

 

Web App Values

Envelope Parameters

    Climatic Zone
    1 2 3 4 5 6

Wall Insulation 

(W/m2.K)

 Masonry 2.86
Non-Masonry 0.455 0.526 0.526 0.526 0.526 0.455

Floor Insulation 

(W/m2.K)

   0.667 1 1 1 1 1

Roof Insulation 

(W/m2.K)

   3.7 3.2 2.7 3.7 2.7 3.5

 

Glazing

    Aluminium/Steel Frame Timber/PVC Frame
Glazing U-Factor (W/m2.K) Single Tinted 7.9 5.6
  Clear Double 4.23 3.0
Solar Heat Gain Coefficient Single Tinted 0.69 0.65
  Clear Double 0.59 0.56

 

HVAC Parameters

Design Fan Power (kW.s/m3)

CAV:
1.6

VAV:
2.1
Heating COP** 0.85
Cooling COP**

Water:

3.2

Packaged & Split:

2.73

Unitary Console Split:

2.5
Ventilation Rate (L/m3.s)** 1

 

** Typical value inputted as no value provided or average taken.

 

References

SANS204 Table 2

Basic Guidance

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