SolaTube Ø35cm Flat roof ECO square diffuser system


Sun pipe system for flat roofs with a 35cm diameter tube.

ECO (Energy Care Optima) double walled insulated upstand flashing.

Can be installed on EPDM, PVC, TPO, Bitumen, and CPE flat roofs.

Best suited for smaller spaces such as but not limited to: bedrooms, bathrooms, toilets, corridors, landings in both residential and commercial buidlings as well as meeting rooms, offices and retial spaces.

Each installed system illuminates up to 18 m².

The polycarbonate roof domes have a fire classification of Tp(a), as certified by the BBA.

Recommended maximum tube install length is 9m.

This flashing is extruded from one piece of aluminium for a light yet strong, leak-free design.

Additional information

Install type

Flat Roof

Diffuser type


System Size



Product Application

SolaTube Ø35cm for installation on to flat roofs

This SolaTube Ø35cm ECO (Energy Care Optima) flat roof flashing kit is suitable for installation on all types of roof coverings such as EPDM, PVC, TPO, Bitumen, and CPE.

System Components

Dome and Assembly (included in the system base kit)

Polycarbonate Flex Dome, Inner Dome, LightTracker Flex, 2 x Raybenders Flex, Top and Bottom Tube assembly, Brush Seal, Natural Effect Lens and Insulation Lens.

Flashing (included in the system base kit)

Ø35cm Flat Roof flashing with a double walled insulated upstand and flashing insulator

Extension tubes

Extension tubes and adjustable tubes (0-30° and 0-90°) can be added to the system to extend the install distance from roof to ceiling providing ease and flexibility of installation.


Choice of diffusers: Square JustFrost and Square Recessed Ceiling Diffuser.

* A transition box is included as part of the base kit.

Buy SolaTube Ø35cm Flat roof ECO square diffuser system

Extension tubes (install distance from roof to ceiling)
0-30° adjustable tube
0-90° adjustable tube
Daylight Dimmer
Light Add-on kit

Product Performance

Below are the technical specifications for both the SolaTube Ø35cm ECO (Energy Care Optima) and the standard SolaTube Ø35cm system. The standard SolaTube Ø35cm flat roof system can be purchased by Clicking Here

 Ø35 cm ECOØ35 cm
Light output in lumens323302884
Recommended maximum tube length1max 9mmax 9m
U-value complete set20.7 W/m²K1.3 W/m²K
Sound Insulation2 Dn,e,w (C Ctr)68 dB65 (- 2;-5) dB
Upward pressure / downward pressure4UL 3352/DL 7182UL 3352/DL 7182
Gust LoadSB 1350SB 1350
  • 1 Solatube Lumen Output Tabels 4.1 - 7/05.
  • 2 Research Grontmij (Sweco), Peutz en ITC-CNR.
  • 2 Half-year average based on research by Grontmij (Sweco) en
  • 2 Tested with the EN 1873 method by British Board of Agrément.