
Horizontal sliding secondary glazing is one of the most versatile secondary glazing systems available. Available in 2, 3, 4 or 5 independently sliding sash configurations, it suits virtually any window and delivers outstanding acoustic and thermal performance.
Horizontal sliding secondary glazing is configured with 2, 3, 4, or 5 independently sliding sashes. Each sash slides smoothly along precision-engineered tracks and can be opened individually for ventilation or cleaning access. The slim aluminium profile sits within the window reveal and is available in over 200 RAL powder coat colours.
Maximum width 4,934mm, maximum height 2,768mm, maximum panel weight 80kg. Available as HS2 (2-panel), HS3 (3-panel), HS4 (4-panel), HS5 (5-panel), and HS3-CF (3-panel centre fixed).
Classic range: 4.0mm toughened. Enhanced range: 6.0mm toughened, 6.4mm acoustic laminate, 6.8mm acoustic laminate (49dB Rw), 8.8mm acoustic laminate, 10.8mm acoustic laminate.
Face-fixed (thermal priority, 80mm cavity, 65% heat loss reduction) or reveal-fixed (acoustic priority, 150-200mm cavity, up to 80% noise reduction). Hardwood subframe supplied as standard.
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