I've got some solar water vacuum heating tubes to experiment with, but how to attach them to my slate roof?
I'm thinking of using standard scaffold bars and clips, so that I can easily adjust the height and angles.
But how to attach the scaffold to the wooden roof beams/rafters/joists?
And how to get the scaffold tube up through the slate waterproofly?
Are there fittings I can buy, what are they called, and whereform?
Or how else can I do it?
Thanks
[george]