Identify Roof Rail Extrusion

[OnOff]

@binky, evening. Would you by any chance recognise this solar PV roof rail extrusion? Cheers.

 

[binky]

never seen that one before. Some times the panel clips ae marked with a makers name, bur even if they are, there was a lot fo Chinese and other makes of roof rails on the arket during the height of PV installations for which getting spare parts is nigh on impossible now. If your lucky, you may find someone clearing out spares on ebay. It's easier just to replace the lot with Renusol or Schletter gear. 

 

[OnOff]

@binky , is there a rule of thumb for how many mounting brackets I need for solar thermal panels?





Rough plan is stainless brackets onto the rafters, then galv Unistrut, then the panels on that.

Cheers

 

[binky]

Not familiar with thermal, but rafters tend to be 600mm spacing, and I usually fit to every other rafter. It's also governed by the strength of the rail, and how exposed your roof is to the wind. If you are putting those 3 panels in a straight row, I reckon 8 roof hooks would be about right. Use 6mm X 80 screws, 2per bracket, ideally mushroom head, or big penny washers

 

[OnOff]

Not familiar with thermal, but rafters tend to be 600mm spacing, and I usually fit to every other rafter. It's also governed by the strength of the rail, and how exposed your roof is to the wind. If you are putting those 3 panels in a straight row, I reckon 8 roof hooks would be about right. Use 6mm X 80 screws, 2per bracket, ideally mushroom head, or big penny washers

Ta. Someone just gave me this Grant manual and a similar one which is handy:

 

[binky]

Ta. Someone just gave me this Grant manual and a similar one which is handy:

looks pretty similar to PV panels, although I like to keep overhangs on the rails to under 400mm, but that's based on the rail system I use.

 

[OnOff]

Tbh I'm going to use galvanised Unistrut affixed to these stainless brackets:

https://callidus.shop/products/variosole-stainless-steel-roof-hook-for-pantiles?
This from another manual:

 

[binky]

Might be easier to fix to these as they have a flat top. Would shop around for prices, I normally pay around £6 for these. When you install the roof hooks they need to be about 5mm above the tile below it, so they don't crack it. Sometimes that means you need a spacer, such as 10mm marine plywood.
https://helecs.co.uk/?product=schletter-eco-s-135-steel-roof-hook-35mm-2500669763