MB-86N Pro
The architectural standard for performance and versatility — an ALUPROF system built for demanding climates, oversized glazing, and heavy pivot doors without sacrificing thermal performance.
Request a QuoteSpecifications
| System | ALUPROF MB-86N (Poland) |
|---|---|
| Frame Material | Multi-chamber thermally broken aluminum, 3" (77mm) depth |
| Thermal Versions | ST, SI, and Aero (aerogel-insulated) variants |
| Glazing | Up to 67.5mm |
| U-Factor | As low as 0.14 Btu/h·ft²·°F |
| SHGC | 0.17 – 0.42, depending on glass package |
| Sound Reduction | Up to 48 dB |
| Certification | NFRC certified; meets Washington State Energy Code |
| Features | Dual-color interior/exterior finish, oversized panes, heavy pivot door support, optional nailing fin |
| Warranty | 10-year frame, 10-year glass |
Details
MB-86N Pro sits between our everyday MB-79N Pro and our top-tier passive MB-104 Pro, offering three thermal tiers — ST, SI, and an aerogel-insulated Aero variant — on the same 77mm structural platform. That range makes it easy to spec exactly the performance a project needs without moving to a different system.
The frame is rated for oversized panes and heavy pivot doors, supports dual-color interior and exterior finishes for a tailored look inside and out, and carries NFRC certification meeting Washington State Energy Code requirements out of the box. It’s a strong default choice for demanding Pacific Northwest climates where builder-grade aluminum falls short.
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