Aluprof MB-77HS
The lift-and-slide companion to our MB-79N and MB-86N aluminum windows — a value-focused Aluprof system with a barrier-free threshold and slim central mullion for accessible, large-format terrace openings.
Request a QuoteSpecifications
| System | ALUPROF MB-77HS (Poland) |
|---|---|
| Frame Material | Thermally broken aluminum — ST and HI thermal versions |
| U-Factor | As low as 0.15 Btu/h·ft²·°F installed |
| Max Size | Up to 10'6" tall × 10'10" wide (3.2 × 3.3m), weight up to 400kg |
| Threshold | Barrier-free (zero) threshold |
| Design | Slim central mullion for a nearly continuous glass line |
| Security | Closed glazing-frame shape with break-force protection elements |
| Warranty | 10-year frame, 10-year glass |
Details
MB-77HS is our everyday aluminum lift-slide recommendation, sized between the value-oriented MB-79N Pro and our premium Reynaers Master Patio. A barrier-free, zero threshold makes it a strong fit for accessible design, while the slim central mullion keeps the sightline as continuous as possible across the full 10’10“ width the system supports.
Available in ST and HI thermal versions, the frame holds U-factors as low as 0.15 Btu/h·ft²·°F, and a closed glazing-frame geometry with break-force protection elements adds a meaningful layer of security. It pairs naturally with our ALUPROF window lines for projects that want one consistent aluminum system throughout.
Gallery
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