Pilkington UK, part of the NSG Group, manufactures float, coated, laminated and processed glass for architectural and technical applications. Pilkington presents Pilkington Optitherm™ S1 Plus, a low-emissivity coated glass designed for insulating glass units. Its coating reflects long-wave heat radiation back into the building while keeping light transmission high, so glazed areas lose less heat without darkening the interior.
Thermal Performance
In a standard double glazed unit, Pilkington Optitherm™ S1 Plus achieves a Ug-value of 1.0 W/m²K. It can also be used in triple glazed units where lower values are required by regulation or by passive design strategies.
Combination with Pilkington K Glass™
When Pilkington Optitherm™ S1 Plus is placed on surface 2 of a double glazed unit and Pilkington K Glass™ on surface 4, the unit reaches a Ug-value of 0.9 W/m²K, a performance close to triple glazing with only two panes. The lighter unit can be used in existing frame profiles.
Low-Carbon Version
The same coating is available on low embodied carbon glass as Pilkington Mirai Optitherm™ S1 Plus, part of the Pilkington Mirai™ range.
Applications
Pilkington Optitherm™ S1 Plus is used in windows, façades, curtain walls and skylights of houses, apartment buildings, offices and retail spaces, where thermal insulation has to be combined with high daylight levels.
