What is everyone doing for the design of mounting systems? Are you designing the system taking wind load, snow load, location, height above sea level etc into account or is it a case of a hook every 1200mm and hope for the best.
Honest answers please.......
Design every system, every time, taking into account all the above.
The figures are very straightforward and with the structural calcs software, the analysis is too. It actually takes longer to do the quote and design the PV system than it does to do the stuctural and mounting system calcs properly.
We always have (even before the guidance to the LABC) and always will.
Honest answer - I've worked for two pv firms, one local and one national and I'm yet to see a design team commission a structural survey on a domestic job. I'm not saying I don't believe they are a good idea, this is just my experience of this industry. Be interesting to hear other peoples experience...
there must be a rule of thumb! i put two on the end panel between neibouring rafter & then every 800-1200 & on joints the same as the end's.
it's what my guvnor likes i dont know if he's right or wrong but over engineering is better then under & makes you sleep better wen it's windy ha!
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