So instead of buying a cabinet or building one from plywood i have decided to just build a frame from 3X2 timber and cover it with extra thick white reflective sheeting.

Question is this ---> This is an attic grow. I will be using a 400 watt hps that is cool tubed. The hot air will be extracted back into the house. Im scrogging all the way baby. Will i have problems with the thermals. i.e. The po LICE. Surely a 400 watter in the attic that is cooltubed is not gunna even be considered as illegal activity under the eyes of the law?

Anyone?