Dezeen promotion: Sydney architecture studio SJB has used Vitrocsa's glass sliding walls and skylights to create a light-filled apartment in Sydney suburb Surry Hills.

Cleveland Rooftop was designed by SJB to slot into a space between a goods lift and a fire escape, on the roof of a former industrial building.

With the aim of creating a space that flows seemingly from inside to outside, the architects used large glazed Vitrocsa Swimms sliding windows to divide the living spaces from the flat's private roof garden.

"Its large sliding windows are designed to bring the outside inside, taking full advantage of the natural light of the sun and sky," said the Swiss brand.

The sliding windows are recessed and concealed within the wall, floor and ceiling. Running on stainless-steel bearings, the doors can be easily be opened at the push of a button.

The slimmest tracks available from Vitrocsa start at 32 millimetres wide, while the windows themselves are available with single, double or triple glazing.

The windows offer enough sound insulation to create a quiet interior for the flat, despite the building's location on a busy road.

Along with the numerous skylights, dotted throughout the apartment, the glazing system brings ample natural light into the entrance hall, corridors and bathrooms.

Victrocsa also manufactures the Turnable Corner glazing system, full-height windows that can slide around corners. The system has recently been installed at a house in Lebanon designed by Nabil Gholam Architects.

Find out more about Swimms sliding windows on Vitrocsa's website.

Photography is by Felix Forest.