Optimum U-Value – 1.3 W/m2k (using a 24 mm Double glass unit comprising 4 mm Tough/16 mm Argon/4mm Tough Planitherm One). The Spring Sash will achieve
a G-Value of 0.50 with this glass speciation.
Optimum G-Value - 0.71 (using24 mm Double glass unit comprising 4 mm Tough/16 mm Argon/4 mm Tough Planitherm Total+). The Spring Sash will achieve
a U-Value of 1.4 W/m2k with this glass specification.
Optimum Acoustic Rating – RW(C;Ctr) 36db (-2;-5) (using 24.8 mm Sound Control Double glazed unit comprising 6.8 mm Sound Control Laminated/14 mm Argon/4
mm Tough Planitherm Total+).
