System catalog

MB-104 Passive Aluminum Window & Door System

When the envelope has to work harder. The highest-performance system in the catalog, developed for Passive House and energy-critical construction.

MB-104 Passive aluminum window in a certified build, exterior
Where it fits

SI and AERO variants, PHI-certified for applicable configurations.

Passive House projects
High-performance custom homes
Net-zero & low-energy buildings
Multi-family envelope upgrades
Institutional projects
Aggressive energy targets
Envelope-critical openings
MB-104 Passive profile section, exploded
Performance begins inside the profile

A high-performance glass package can't compensate for a weak frame.

Thermal breaks, insulating zones, gasket lines and glazing work together across the complete perimeter of the opening to reduce heat transfer through both frame and glass, while retaining aluminum's strength and finish flexibility.

Technical specifications

Current ALUPROF system data.

Thermal insulation (Uw)
From 0.53 W/(m²K)
Airtightness
Class 4
Wind resistance
Class C5/B5
Watertightness
Up to 1800 Pa
Variants
SI and AERO
Certification
PHI-certified, applicable configs

Performance for a completed project varies with unit size, glass, spacers, installation and assembly detail.

Performance without giving up design

Passive performance doesn't require a white plastic window.

Frame color, interior/exterior appearance, glass composition, hardware and operating configuration can all be coordinated around the architecture, not disconnected from it.

See all customization options →

Vitraz fabricates MB-104 Passive assemblies locally from ALUPROF system components. For performance-driven projects, we work from architectural drawings and opening schedules to identify the right configuration before fabrication.

System catalog

Discuss an MB-104 Passive project.

Send us your architectural drawings or opening schedule and we'll help identify the right configuration before fabrication.

(917) 418-0816
Mon–Fri, 9am–4pm
Brooklyn, NY
Serving NY, NJ, CT, RI & PA