ST RL105

ST RL105 Roof Light – Bright, Simple and Energy Efficient

The roof light brings natural light into your home with a clean, simple design. It uses slim aluminium profiles and large glass areas to brighten kitchens, living rooms and stairwells. Because it delivers strong daylight and good thermal performance, it suits both new builds and renovation projects.

Light and Ventilation Made Easy

You can install the ST RL105 Roof Light on pitches up to 10 degrees. It comes as a fixed unit or as an opening unit with manual or electric vents. These options help you control airflow and keep rooms fresh throughout the day. The slim frame increases visible glass, which makes rooms feel larger and more open.

The system also works well with other APA products.

Tested for Strong Performance

The ST RL105 Roof Light handles tough weather. It meets CWCT Sequence B performance standards, which test air, water and wind conditions. As a result, it achieves:

• Air permeability: 600 Pa

• Water tightness: 1,500 Pa

• Wind resistance: 3,600 Pa

It also complies with EN 12101-2:2003 for smoke ventilation. In addition, it passes certified snow-load tests. Therefore, the system performs well in exposed or coastal locations and supports long-term reliability.

Flexible Design Choices

You can order the Roof Light in a wide range of sizes and finishes. It works as a fixed panel or as an opening unit, depending on the needs of the project. The low-profile design suits modern architecture, while the strong insulation helps maintain comfort throughout the year. Because of this, the roof light integrates easily into many styles of residential glazing.