cut a few vent holes in the roof ,,,should help a lot, be sure the seal around vents ,the vents will let alot of the heat out but also the smell as they get older ,,fans also will be needed (you can get a portable a.c unit about 300$ covers about 250sq feet ,needs to be vented to the out side ,small hole in the side of building )anyway good luck,be carefull ,PEACE,LOVE ,RASTAFARI