Our Penthouse Plus S (Slide) and Penthouse Plus LS (Lift & Slide) are large sliding patio doors offering maximum glass and minimum frame, dramatically increasing the natural light into a room. Constructed from strong thermally broken aluminium profiles they can achieve U-values as low as 1.6 W/m²K and high weather performance; making them suitable for use in exposed locations.
Huge glass panels up to 2.5 metres wide provide unobstructed views of the world outside and the panels slide with ease.
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