| I actually have some experience with the foil that goes in the attic. I attended a training course that covered it. It seems a better(more effective) option to attach it to the underside of the roof. It reflects out the heat from the sun. This energy is what makes the attic hot and reflecting it out is curing the problem where as an attic fan just sucks out the hot air, which is a symptom and not the problem. I have seen 30-40 degree drops with this product. There are companies around that will install it. |