Solatube® Daylighting Systems extension tubes are available in 610mm (2ft) lengths. They telescope together to give you the required tube length to meet your install distance requirement – the distance between your roof and ceiling. Our chart in Price guide shows the number of tubes you will require over a given install distance.
The 99.7% reflective Spectralight® Infinity material used in Solatube® Daylighting Systems extension tubes means that very effective light delivery is possible with tube lengths of up to 6 metres for the Solatube® 160 DS Daylighting System and 9 metres for the Solatube® 290 DS Daylighting System.
How much tubing do I need?
Measure the distance inside the roof space as shown in the diagram. Now use the online calculator to determine the number of extensions you need.
| System selector | |
| Distance ‘x’ in mm (inches) | No. of extension tubes required |
| up to 400mm (16”) | 0 |
| up to 960mm (38”) | 1 |
| up to 1520mm (60”) | 2 |
| up to 2080mm (82”) | 3 |
| up to 2640mm (104”) | 4 |
| up to 3200mm (126”) | 5 |