Lizbiebrowne
LIFE MEMBER
I've read through a lot of posts on here about how to fix a solar panel to the roof and I'm now ready to do the job. But I wanted a sanity check first.
I have a 20 kg solar panel, 1700 mm x 1100 mm, to which I'll fix 4 x 500 mm pieces of 50 x 50 x 3 aluminium alloy, 2 on each of the longer sides with rivnuts. The van is a Hymer with a painted aluminium roof
The plan: Abrade the roof where the alloy angle will sit (do I need to go down to the metal?), drill holes in the alloy angle to allow the sealant to push through, use 4mm tile spacers to get the correct thickness of sealant, use Sikaflex 522 as the adhesive (do I need to use a primer?), put plenty of adhesive in place and lower the panel onto it and use the weight of panel to allow it to settle on the adhesive bed.
Any thoughts and advice gratefully received.
I have a 20 kg solar panel, 1700 mm x 1100 mm, to which I'll fix 4 x 500 mm pieces of 50 x 50 x 3 aluminium alloy, 2 on each of the longer sides with rivnuts. The van is a Hymer with a painted aluminium roof
The plan: Abrade the roof where the alloy angle will sit (do I need to go down to the metal?), drill holes in the alloy angle to allow the sealant to push through, use 4mm tile spacers to get the correct thickness of sealant, use Sikaflex 522 as the adhesive (do I need to use a primer?), put plenty of adhesive in place and lower the panel onto it and use the weight of panel to allow it to settle on the adhesive bed.
Any thoughts and advice gratefully received.
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