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  Solar Slates
Solex solar slates are supplied in various sizes which are compatible with conventionally sized natural and manufactured slates.

The solar slates themselves are made of toughened glass, and are installed with metal hooks onto conventional timber battening.

They may be installed to the extremities of the roof, or may be installed as a patch surrounded by similarly sized conventional slates.		 22m2 installation for water heating
10m2 solar water heating system fitted as an upper strip

Alternatively they may if necessary be installed as a part of a roof face, next to non-compatible slates or tiles, e.g. next to concrete tiles. In this case they are best installed as a strip at the top of the roof, lapping over the top edge of the non-compatible material.
Installation
The slates are installed on a conventional roof construction, typically consisting of rafters with a breathable membrane over, with or without sarking boards or insulation to suit the design.

Vertical counterbattens and horizontal battens, both 25 x 50mm, are fitted over the membrane.

The solar absorbers, which lie under the slates, are fitted together over the battens with metal 10mm connectors. The ends of the courses are linked with loops of 10mm copper pipe.		 absorber panel installation
The glass solar slates are fitted to the battens with metal hooks, pre-formed to give the required lap. The hooks are held securely with stainless steel screws.

Where the solar slates are installed as a patch they are simply stepped into the normal slates.

Where the whole roof is to be covered, various special sizes are available:

Eaves slates for the first course.
Verge slates for every second course at verges (gables).
Ridge slates for the ridge, which may be capped with dry-fit or cemented ridge tiles.
Cut corner slates for hips.

For valleys, around details, and other places where odd shapes are required, matching polycarbonate slates are available which can be cut to suit, as the glass slates cannot be cut.
Solar roof nearing completion
The visual effect of the tiles is a uniform medium to light grey, a combination of the reflection from the surface and the black colour of the absorbers panels which lie beneath them. Planning authorities have welcomed these roofs as a more aesthetically pleasing alternative to solar panels.

Specifications
 SLATES







      
Slate system 500 series 600 series
Material 4mm float glass, toughened to BS 6206 
Standard slate 500 x 500mm  300 x 600mm
Head lap 100mm  100mm
Laying gauge 205mm +/-2mm  255mm +/-2mm
Coverage 9.76/m2  13.1/m2
Loading 24kg/m2  24kg/m2
Minimum pitch 25° (30° severe exp.)  23.5° (30° severe exp.)
Maximum pitch 70°  70°
Battens 25 x 50mm +/-2mm, durable timber
Fixings Stainless steel slate hooks and screws
    
ABSORBERS








 Material Copper, 0.2mm
Coating Selective surface
Size 1200/600/400 x 200mm  1200/600/400 x 250mm
Coverage 0.246m2 (1200mm)  0.306m2 (1200mm)
Loading 4kg/m2
Solar absorption, aM1.5 0.94 +/- 0.02
Thermal emission, e100°C 0.05 +/-0.02
Insulation 25mm PIR foam, zero ODP
Maximum fluid pressure 3 bar
Average annual output 410 kwh/m2
    


 

 













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