SIERRA RIGIEL

A closer look.

This high-performance aluminum entry door is engineered for security, energy efficiency, and comfort. It comes in sizes ranging from 31.8" to 43.6" in width and 80" to 82.3" in height, with the option to order larger custom sizes via Lim or Pivot.

The door leaf is 2.2 inches thick and filled with a combination of polyurethane (PUR) foam and wood, delivering solid structural integrity and excellent thermal performance. A dual sealing system—one seal in the frame and one in the door slab—helps reduce vibrations and prevents heat loss. The seals remain stable even under varying weather conditions. The frame features reinforcements at hinge and locking points to boost anti-burglary protection.

The door set includes:

• Prehung aluminum door and frame with dual gaskets for a tight seal;

• ROTO strip lock with an independent upper lock and three reinforced anti-theft bolts;

• Two sets of key inserts;

• Standard handle (T-bar long handle available as an upgrade);

• Viewfinder included for solid door models;

• Three adjustable hinges with anti-burglary function;

• Aluminum threshold with integrated gasket;

• Three additional anti-theft bolts for enhanced security.

Insulation & Soundproofing:

• Full door leaf: R-Value 4.8

• Glazed door leaf: R-Value 3.8

• Acoustic insulation: 31 dB (non-glazed)

• Triple glazing in glass variants enhances both sound and thermal insulation

For certification and approved configurations of this model, request the documentation from our team.