Sonarol Exterior Door — Aluprof MB-70 System

Sonarol Exterior Door — Aluprof MB-70 Aluminum Door System

The Sonarol Exterior Door — Aluprof MB-70 System is an aluminum entrance door system built around profiles with a thermal break. The door frame and sash each use a 70 mm deep profile, creating a defined perimeter for the selected glass or panel infill. Aluprof lists an infill range of 15–51 mm, so the opening can be planned around different compatible panel builds while retaining the same base profile system. This is useful when an exterior door needs to relate visually to neighboring aluminum glazing: frame proportions, the size of the glazed or solid area, and the position of the moving leaf can be coordinated as one elevation. The base MB-70 system supports single- and double-leaf door arrangements. A single leaf gives the entrance one clear moving panel; a pair of leaves divides a wider opening into two parts and changes the way people pass through it. The manufacturer reference maximum is 2400 × 1300 mm for the door, with a maximum sash weight of 120 kg. These limits describe the system’s published design envelope, giving a starting point for proportioning an entrance rather than a promised size for every finished door. Manufacturer system and reference data depend on the selected profile combination and finished door configuration.

Thermal-break profiles for a coordinated entrance

MB-70 brings the frame and door leaf together in one aluminum system, with the thermal break forming part of the profile construction between the exterior and interior sides. The result is a consistent frame section for a contemporary entrance, whether the design uses a single leaf or a two-leaf composition. Within the stated infill range, the selected glass or panel determines the appearance of the central field: a glazed door keeps a sightline through the entrance, while an opaque infill presents a more solid face. The system dimensions make those design decisions concrete. Frame and sash depth describe the profile section, while the maximum door dimensions and sash weight describe different limits in Aluprof’s published system data. Air Class 4, water E1200, and wind C5 are also listed by Aluprof as MB-70 system references. Together, these categories give a concise profile-system snapshot alongside the physical dimensions, without suggesting that every fabricated door has been tested in the same way. In a residential or commercial façade, the MB-70 exterior door can serve as a defined entrance element and coordinate with adjacent aluminum openings. Its practical character comes from matching the infill and leaf layout to the passage: a single-leaf entry keeps the moving area focused, while a double-leaf arrangement can distribute the passage across a broader doorway.

Aluprof MB-70 system specifications