Sidey's SolarthermPlus® windows can be manufactured with U-values of 0.7W/m2k.
This remarkable performance is achieved using a standard 70mm outer frame depth, "off the
shelf" glazing, hardware and other components View Products »
U-Values as low as 1.2 W/m2K
Sidey's Solartherm® range has been developed to address the growing demand for energy
efficient windows. The Solartherm® Window range can be manufactured to a U-value of 1.2W/m2K