Thermal Control Glass. Combines excellent thermal properties (1.0 u-value) & solar control (blocking 56% of the sun’s heat) – ideal for conservatories. PLANITHERM 4S is a new concept glass for conservatories that has both high performance low-e properties but also solar control.

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Recommended Trusted Company MPN Windows Supplier Installers and Fitters in South, West, Mid, Glamorgan, Wales.