Thermal resistance
For each frame the thermal resistance represents a combined effect of the heat loss
through the frame and all the edge effects (effects due to thermal interaction between
glass, panel and frame). The heat transfer assessment method is described in the thermal
standard "Standard for specifying and assessing for heat transfer, Centre for Window and
Cladding Technologies. Bath. UK, 2002".
Boundary conditions according to [CWCT], [ISO 10077-2]:
Cold-side environmental temperature: 0°C*
Warm-side environmental temperature: 20°C*
Cold-side surface resistance: 0.04m²K/W (surface parallel to glazing)
Cold-side surface resistance: 0.04m²K/W (surface perpendicular to glazing)
Warm-side surface resistance: 0.13m²K/W (surface parallel to glazing)
Warm-side surface resistance: 0.20m²K/W (surface perpendicular to glazing)