Thermal resistance and sound insulation of the roller shutter Apex T
- U sb = 0,80 W/(m²K) for 165mm box
- ΔR = 0,15 (m² K)/W for 39-43mm blades - Apex-T without insect screen (for all the boxes)
- ΔR = 0,15 (m²K)/W for 39-43mm blades - Apex-T with insect screen (for 150mm and 165mm boxes)
- ΔR = 0,12 (m²K)/W for 39-43mm blades - Apex-T with insect screen (for 180mm and 205mm boxes)
U sb – represents the thermal transmission coefficient of the roller box that measures the thermal loss, meaning the ability of the box to preserve the indoor temperature. The closer the coefficient tends to 0, the better insulation provides.
ΔR – measures the additional thermal resistance of the roller blades. The higher this coefficient is, more insulating the roller blade is.
