Total Area of Heat Losing Surfaces of the Building (Atop)

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  2. Flammability Classes of Building Materials
  3. Importance of Glass Selection in Buildings
  4. Heat Transmittance Coefficient (U value : W/m2 K)
  5. Coefficient of Thermal Conductivity (W/mK)
  6. Monthly Heating Energy Requirement (QI,month)
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  12. Solar Gains (φg)
  13. Heat Gain Utilisation Factor (η)
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  15. Total Area of Heat Losing Surfaces of the Building (Atop)
  16. Atop / V Gross Ratio
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  18. Relative Humidity
  19. Density ( kg/m3 )
  20. Condensation, perspiration
  21. Vapour Diffusion Resistance Coefficient
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  25. Dimensional Stability
  26. Vapour Diffusion Resistance Coefficient
  27. Daylight Transmittance: (VT or Tvis, visible transmittance)
  28. Daylight Reflection (exterior)
  29. Solar Heat Total Transmittance (SHGC: Solar Heat Gain Coefficient)
  30. Daylight to Solar Gain Ratio (LSG: Light-to-Solar Gain Ratio)
  31. Shading Coefficient (SC: Shading Coefficient)
Total Area of Heat Losing Surfaces of the Building (Atop)

Total Area of Heat Losing Surfaces of the Building (Atop)

External wall, ceiling, floor/flooring, window, door etc. It is the sum of the heat loss surface areas of the building components and is found according to external measurements. Unit is "m2".

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