Mounting hooks - numbers and spacing
Posted: Mon Dec 19, 2022 12:23 am
Hi everyone,
Hope you are well.
Im trying to work out how many hooks I need and the max spacing of the hooks for roof mounted panels. I have a shallow pitched roof with concrete tiles and want to have 1 line of 5 panels and 1 line of 4 panels above - all in portrait. The panels are canadian solar ones and are 1.048m x 2.108m. For the 5-panel row, If I had 5 hooks on each rail and the two end ones were 30cm in from the ends then the spacing would be 1.20m at best (depending on positioning of the rafters). For the 4 panel row with 4 hooks it would be 1.236m. So in both case the spacing would be slightly wider than the panel width possibly a bit wider depending on the rafters.
I appreciate that ideally a structural engineer should be working out the stresses/forces involved but I was wondering if there was a rough rule of thumb on this. Looking at my neighbours set up, the hook spacing seems very far apart. I cant seem to find anything on this on the installation guide published by renusol (https://www.renusol.com/files/content/D ... nGuide.pdf).
Any insights would be greatly appreciated.
Cheers
Tom
Hope you are well.
Im trying to work out how many hooks I need and the max spacing of the hooks for roof mounted panels. I have a shallow pitched roof with concrete tiles and want to have 1 line of 5 panels and 1 line of 4 panels above - all in portrait. The panels are canadian solar ones and are 1.048m x 2.108m. For the 5-panel row, If I had 5 hooks on each rail and the two end ones were 30cm in from the ends then the spacing would be 1.20m at best (depending on positioning of the rafters). For the 4 panel row with 4 hooks it would be 1.236m. So in both case the spacing would be slightly wider than the panel width possibly a bit wider depending on the rafters.
I appreciate that ideally a structural engineer should be working out the stresses/forces involved but I was wondering if there was a rough rule of thumb on this. Looking at my neighbours set up, the hook spacing seems very far apart. I cant seem to find anything on this on the installation guide published by renusol (https://www.renusol.com/files/content/D ... nGuide.pdf).
Any insights would be greatly appreciated.
Cheers
Tom