SIERRA CAPELLA

A closer look.

The solid front door is a premium solution for homeowners seeking durability, energy efficiency, and security. Each door is manufactured after an order is placed, ensuring precise craftsmanship and attention to detail.

The door features a stainless steel exterior with an internal structure filled with PUR polyurethane foam and wood. This combination provides outstanding thermal insulation, structural strength, and resistance to weather conditions. The door slab is thick and includes a dual sealing system—one in the frame and one in the supporting edge of the door. This design minimizes heat loss, reduces vibration, and helps maintain interior comfort year-round.

The frame is reinforced in key areas around the hinges and locking points to enhance anti-burglary protection. The entire door set comes prehung, simplifying the installation process.

Included in the set:

• Door and frame with dual gaskets

• ROTO strip locking system with an independent upper lock and three anti-theft bolts

• Two cylinder inserts with keys

• Standard door handle (optional T-bar long handle available)

• Viewfinder (applies to solid doors)

• Three adjustable hinges with anti-burglary protection

• Aluminum threshold with gasket

• Three anti-theft bolts

Performance specifications:

• R-Value of 4.8 for full door leaf

• R-Value of 3.8 for glazed door leaf

• Acoustic insulation rating of 31 dB (non-glazed doors)

• Glazed versions feature triple-pane glass for added insulation and soundproofing

Fully preassembled in the frame, the door is ready for immediate installation, offering both convenience and lasting performance.

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