Urgent attic setup help

i asure you you will have all the oposite probs if you do not insulate fully the underside of the roof!, the heat source in the roof would be like a red light for police helicoptors with infra red! the light would proberbly escape around the eaves of the roof, where ventilation is kept to stop dry rot! hot air should if possible be carried away from the roof area and pumped either into a chimney or heating shaft!, the other way to disguise your exhaust heat is by extracting behind an aircon/ heater unit! they naturally give off heat sources and dfont send any alarm signals to police!, insulating the loft is a big job, setting up any grow is a seroius job!, better to take longer, pay more, and stay safe, than to rush forward without proper concideration and get busted for your efforts!!
as for heating up there!, once the loft is light and heat proof, you wont have that problem, and you will be searching for a cool air inlet, to keep everything right!. if you put either a grow tent or cupboard in the loft, it should be fully insulated, so as to avoid a heat signal build up in the loft, and then draw the cool air out of the loft into the cupboard!,, although you should open the lights at night and go look from outside! you may find ya have light leacking from the eaves or from the venting grills in the soffit!
be sensible and stay safe!
i think in the uk, more busts have been made threw poeple growing in the loft than for any other grow set ups.! damn they have infra red heat sensors to find them for christ sake!, which means you got to be plenty smarter than they are!


welcome to the world of endless possibilities,,,,,hydroponics!