Synergic HST
The lift-and-slide door built to match our Synergic wood-aluminum windows — a frameless-glazing HST system that lets the passive leaf's glass run flush to the floor for an uninterrupted indoor-outdoor sightline.
Request a QuoteSpecifications
| System | Bertrand Synergic / HST Panorama (Poland) |
|---|---|
| Frame Material | Wood-aluminum construction — pine, oak, meranti, larch, or spruce core; door leaf from 76mm |
| Aluminum Cladding | Standard weatherproof exterior shell |
| Glazing | Frameless fixed glazing; passive-leaf glass extends to floor level |
| U-Factor | As low as 0.14 Btu/h·ft²·°F |
| Sound Reduction | Up to 48 dB |
| Security | RC2 burglary resistance |
| Hardware | Hook locking mechanism, thermally separated ground-level leveling profile |
| Warranty | 10-year frame, 10-year glass |
Details
Synergic HST is the terrace-door companion to our Synergic window line, sharing the same wood-aluminum construction and species options so an entire elevation can be specified from one consistent frame family. The passive leaf uses frameless fixed glazing set on a thermally separated, floor-level leveling profile, letting glass run all the way down for a clean, low-sill transition to the outdoors.
Behind that minimalist look is the same performance the Synergic name is known for: U-factors as low as 0.14 Btu/h·ft²·°F, up to 48 dB of sound reduction, and RC2 burglary resistance. It’s the choice for projects that want a genuine wood interior on their largest opening, not just their windows.
Gallery
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