I've been trying to work out how to insulate my shed (a stock standard steel/aluminium shed) so I can move my gecko, dragon and skink enclosures out of the house - first I thought I would line the inside of it with foilboard but I'm worried that I might stuff this up, so I did a bit of research on the net and discovered a product called thermilate. You add this to paint and then paint the outside of a building (i.e. a shed) and it is supposed to cool it down in the summer and keep the heat in in winter.
Has anyone used this product for this specific purpose before?
If so, was it effective as an 'insulating agent' alone, or did you still need to line the inside of the shed with traditional insulation?
Thanks in advance for help and suggestions.

Has anyone used this product for this specific purpose before?
If so, was it effective as an 'insulating agent' alone, or did you still need to line the inside of the shed with traditional insulation?
Thanks in advance for help and suggestions.