OS-D+ Minimalist Sliding System [Sosoares]
The Future of Minimal Architecture, now in Australia.
Across the world, architects are pushing boundaries—expanding glass areas, maximising transparency, and reducing visual obstruction to an absolute minimum. As homes and commercial spaces increasingly embrace panoramic openings and indoor-outdoor continuity, the demand for systems with ultra-slim sightlines, large panel capabilities, and high thermal performance has never been higher.
The OS-D+ Minimalist Sliding System, designed and engineered in Portugal, represents the absolute peak of this evolution.
It combines Vitrocsa-style minimalism with the practicality, strength, and performance required for the Australian climate—thermally broken frames, multi-track configurations, and double or triple glazing, all while achieving exceptional Uw values and weatherproofing levels.
This is our flagship minimalist system:
Pure architecture, reduced to its most elegant, high-performing form.
Performance
Thermal
- Uw from 1.48 W/m²·K (with insulated profiles and DGU).
- Ug down to 1.0 W/m²·K depending on glass specification.
- Excellent choice for 7-Star NCC and NatHERS-driven projects.
Air, Water & Wind Ratings
- Air Permeability: Class 4
- Water Tightness: Class 7A
- Wind Resistance: Class B3
Acoustic Performance
- Up to Rw 42 dB (with IGU).
Why Choose the OS-D+ for Your Project?
1. The Most Minimal Aesthetic in Our Range.[20mm mullions!]
This system delivers the slimmest visible mullions we offer—designed for the architect who wants maximum glass and minimum frame.
2. High Performance for Australian Climate
Unlike many minimalist systems that struggle with weather ratings, the OS-D+ provides real structural and thermal performance suitable for:
- coastal areas
- high-wind zones
- energy-rated homes
- extreme temperature variations
3. European Engineering + Australian Fabrication
Manufactured locally by KR Installations paired with European engineering precision:
- shorter lead times
- local compliance
- local warranties
- local support
4. Perfect for Premium Architectural Homes
The OS-D+ has already been selected worldwide for:
- cliff-front luxury homes
- glass façades
- wine estates & boutique hotels
- modern minimalist residences
- commercial galleries and showrooms
Short Technical Summary for Architects
System: Minimalist Sliding System with Thermal Break
Sightlines: 20 mm mullion, 0 mm head/sill, 20–30 mm lateral
Max Sash Weight: 500 kg
Max Sash Area: 8 m²
Max Sash Height: 4,000 mm
Frame Options: Single or double (52/119/186 mm)
Glazing: DGU 32–35 mm | TGU available
Thermal: Uw ≥ 1.48 W/m²·K
Acoustic: Rw up to 42 dB
Weather: Air Class 4 | Water 7A | Wind B3
