Gse in roof

[Alexphd1]

Has anybody used the GSE in roof solar tray in Scotland. Did you batten on top of sarking or sit tray direct onto sarking (breathable felt aswell). How close can you position to ridge and eaves? Roof is a tapco plastic slate.

Edited February 15, 2018 by Alexphd1

[Jeremy Harris]

Not in Scotland, but we do have 22mm OSB sarking boards and a GSE in-roof system, so I think our experience may be relevant. 

 

We counter battened over the sarking with 50 x 25 roofing battens nailed along the lines of the underlying rafters.  We then laid a non-tenting membrane across the counter battens so that it drooped slightly between them, as per the membrane manufacturers instructions.  Roofing battens were then fitted to the required pitch for the slates, with additional timbers being fitted as per the GSE instructions.

 

The ridge was fitted with a continuous ventilation strip under the ridge slates and similar ventilation was provided at the eaves,  This not only helps keep things dry but it provides essential ventilation to the rear of the solar panels, helping to keep them cool.

[Alexphd1]

much appreciated. hoping not to counter batten but can see the benefit.

[Jeremy Harris]

The counter battens provide the much-needed under-panel ventilation, IMHO.  I suspect that without them, and without the vertical ventilation path up under the slates or tiles, then things might get a lot hotter, with a decrease in PV output.

[Nickfromwales]

On 15/02/2018 at 20:43, Alexphd1 said:

much appreciated. hoping not to counter batten but can see the benefit.

Benefit or necessity? Check with the manufacturers first to see if their panels need that for warranty etc. 

[Moira Niedzwiecka]

Like Jeremy we have the GSE in roof system & is counter battened.

[Barney12]

One thing I’d one to be certain of is that your sarking is thick enough / suitable to ensure the tray bolts and fixation clamp bolts can get a good purchase. With counter batoning you add additional batons to pick up these fixing points and the clamps are the only thing holding your panels to the roof. 

Edited February 17, 2018 by Barney12