Hi,
I need to insulate a roof on a bar as cheaply as possible.
I'm not sure what the roof type is called, but it's very common here, this is what it looks like underneath:
When the sun is on it it's literally too hot to touch the underside and this heat is radiating down into the area below, making it crazy hot in the space.
I would rather deal with this with something from underneath as it would save the headache of working on it from above, weight issues etc.
Is there something I can stick or paint on the underside that would block a decent amount of the heat out, it doesn't need to be 100% effective, 80--90% would be good enough.
Thanks in advance.