Flyder Posted June 2 Share Posted June 2 Hi. I am trying to judge how many panels I can fit on available roof space. I googled for this and so far have answers of 200mm, 300mm, 18", and 1 m. I assume distance from ridge of the roof is the same as bottom/side edge, but what is recommended around a flat roof dormer. Links to official documents appreciated. Link to comment Share on other sites More sharing options...
Mattg4321 Posted June 2 Share Posted June 2 As far as I can tell there’s no hard and fast rule. It just should be designed to cope with wind loads etc. 300mm seems pretty well accepted though. I’ve seen a lot at far far less than that though. Link to comment Share on other sites More sharing options...
Flyder Posted June 2 Author Share Posted June 2 Thanks Link to comment Share on other sites More sharing options...
JohnMo Posted June 3 Share Posted June 3 23 hours ago, Flyder said: Hi. I am trying to judge how many panels I can fit on available roof space. I googled for this and so far have answers of 200mm, 300mm, 18", and 1 m. I assume distance from ridge of the roof is the same as bottom/side edge, but what is recommended around a flat roof dormer. Links to official documents appreciated. Really you need to read the mounting system install instructions and know the wind zone you are. From there it will tell you clearly what is acceptable. You also need to confirm with your structural engineer the roof build up is acceptable for any additional loads imposed (uplift and downwards forces). Taking hear say from the internet is not good enough. If you are doing a MCS install the installer will have full responsibility for what is or isn't acceptable. But with all things it's worth checking yourself and questioning. Link to comment Share on other sites More sharing options...
LnP Posted June 3 Share Posted June 3 On 02/06/2024 at 12:15, Flyder said: Hi. I am trying to judge how many panels I can fit on available roof space. I googled for this and so far have answers of 200mm, 300mm, 18", and 1 m. I assume distance from ridge of the roof is the same as bottom/side edge, but what is recommended around a flat roof dormer. Links to official documents appreciated. I am also figuring out the same thing. Your best bet is to talk to an installer even if not's the one you plan to use. That's what I've done and that way you'll get real world advice. Link to comment Share on other sites More sharing options...
Dillsue Posted June 3 Share Posted June 3 Depending on your roof covering, if you are wanting to install near to a ridge or gable verge, remember that the closer you go to the ridge to mount roof hooks to more disturbance you'll cause to any bedded tiles, if that's your build up. I stayed far enough away from our ridge/ verge to not disturb any mortar bedding and that was 4-500mm away Link to comment Share on other sites More sharing options...
Flyder Posted June 4 Author Share Posted June 4 22 hours ago, Dillsue said: Depending on your roof covering, if you are wanting to install near to a ridge or gable verge, remember that the closer you go to the ridge to mount roof hooks to more disturbance you'll cause to any bedded tiles, if that's your build up. I stayed far enough away from our ridge/ verge to not disturb any mortar bedding and that was 4-500mm away Good point Thanks JohnMo and LNP. Thank you. I am talking to the professionals but dont like their layouts! I was trying to come up with a better looking tesselation myself so I could suggest other options as the Opensolar website which they all seem to be using, seems to go one size fits all without knowing the exact dimensions of my roof. Link to comment Share on other sites More sharing options...
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