Solar Ballast Mounts

[blender]

Hi all,

I’m in the process of installing my solar system. One of the questions I’ve run into is in terms of ballasts.

So my house has a flat concrete roof, with waterproofing. So the suggestion was that I use non-penetrating concrete ballasts to mount the solar panels. I’m installing 12 31kg panels, on 36 35kg ballasts, and associated aluminium frames. So a total weight of about 1500kg over an area of about 7m by 5m.

I know that the flat roof is supported by pretty sturdy beams (and cross beams) about 1m apart throughout the roof, and no doubt by an internal steel rebar structure.

So in my head this should all be fine, but I was just wondering if anyone else had installed something similar? I’m no structural engineer, so I’m not sure if this is close to some limits, or not even close and I’m worried about nothing?

 

[soulie]

get an engineers assesment ,if it cracks without an engineers report insurance may have an issue ,and ask your insurance if it can be done .most standard mass on roof is quoted as 300kg as extra ,but not certain about flat

 

[DapperDanMan]

So a total weight of about 1500kg over an area of about 7m by 5m.

Futurama's blender is calling out some of our mothers - even on a Sunday. How ruthless!

I’m installing 12 31kg panels, on 36 35kg ballasts

Good luck ...