The SunTube35 sun tunnel delivers strong natural daylight into dark flat roof spaces while keeping installation quick and straightforward. The pre‑clad EPDM upstand speeds up installation and creates a secure, watertight finish.

The crystal glass dome captures more daylight and stays clearer for longer than plastic alternatives, and the highly reflective tube channels daylight efficiently into the room, creating a bright, even finish. Adjustable sections and extensions allow the system to work around obstacles and reach longer distances where needed.

For low‑energy envelopes, the EcoPower element enhances thermal performance with glazed insulation. Robust, quiet, and built for UK weather, the SunTube35 sun tunnel is a practical way to add natural light to flat-roof rooms without the cost or disruption of installing a full roof window.