Solar roofing

Solartube

In conjunction with Solalighting Ltd., SIG Design & Technology supplies Solatube Daylighting Systems. These are available as a kit of parts and makes up into a roof-to-ceiling daylight pipe available in two sizes: 250 mm and 350 mm diameters. The kit comprises dome, roof flashing, top and bottom tube assembly, extension tubes, reflective tubing, angle sections, diffuser and all fixings.

The reflecting light pipes are designed to extend through the roof space into the diffuser in the ceiling below. Tubes in the top roof assembly and the bottom assembly are designed with an angle converter which is a rotating section set at an offset in the tube to allow for any angle of tubing through the roof space. Straight extension tubes are available for greater roof spaces. The straighter the light pipe, the more light is transmitted.

Solatube Daylighting Systems are suitable for use on domestic or commercial buildings with new or existing pitched, tiled or flat roofs. The minimum pitch for a tile or slate roof is 15° and the maximum is 65°. Other custom-designed flashings are available to order, for greater pitchesbitumen too.

Solyndra® PV

SIG Design & Technology supplies the SOLYNDRA® PV system, a 360° photovoltaic surface, which provides for the power conversion of direct, diffused and reflected sunlight - one of the most efficient on the market.

The system comprises tubes sheathed in copper-indium-gallium-diselenide (CIGS) solar cells. The tubes make the most of every bit of sunlight, whether it’s cloudy, dusk, dawn or blazing sunshine.

Simple to install, the system is lightweight and facilitates optimal wind load so there is usually no need for additional fastening, weighting or roof penetrations.

To fully maximise the potential of this solar PV system, Rhepanol fk single-ply membrane is now available in white throughout its molecular structure, offering an ultra-reflective surface resulting in a 90.4% solar reflective value. The efficiency of the solar panel as the sun’s rays, are optimised through reflection, striking the generator from underneath, as well as from above.

White Rhepanol is permanently resistant to UV radiation and, due to its higher anti-slip friction co-efficient panels can be installed with a greater pitch - up to 9.5° - than other membranes. It is free from halogen or plasticizers and made from 70% natural materials.

Rhepanol fk is also suitable for over-roofing as it is compatible with other materials, including bitumen.