Just checked when i bought mine, it was march 2015 and it was 31.99 a bargain even then tbh. i am now going to buy some more while the price is 19.99
http://www.amazon.co.uk/Instapark-ZJ-34B-Universal-Drill-free-Rooftop/dp/B008LMIHNQ probably spendy, but sure you could rig up something similar....stand-offs will allow some air circulation below the panel as well
Yeah seen then but they stick up ALOT. I got slimline flexi panels so they were lighter and less obvious when roof is down. I was happy taking the hit in efficiency for that reason
worth having a chat with the suppliers as there might be some intumescent silicone you could use instead of drilling/bolting...
I already have some tiger seal which is what SolarGuruHuw (the guy i got the stuff from) recommended to use. i will still have to drill holes for the cables. i just like the idea of a mechanical fixing as well as the glue. belt and braces!!