wow guys thanks for the advice on everything im going to ponder everything tonight on what i should do i have a couple things i can do now ..i thank you very much and stop by the grow room in a couple days and see how evrything went

the reason i cant cut any holes is this is a rented home ...if i alter in anyway and the home owners find out my deposit is out the window with now exception which is 2500$$ alot of money to throw down the tube just for a hole in the ceiling

someone else gave me this idea kinda got me confused but im sure if i read it a couple times i will understand a little better



Ok from what you have shown in the pics .... it looks simple ...... disconnect the AC Vent .... move the AC ducticting out of the way ..... you now have a gap to feed some ducting out of your grow room .... get a reducer for your AC pipe and some smaller ducting to feed into your room .... then put a scrubber in your room with a exraction fan and then ducting from the extractuor up thru the same hole as your AC duct (so both small pipes share the same hole ) and then add a reducer in the loft to your small extraction pipe comming outy of your room ..... to a bigger diamiter ducting ...... and then run that to the eves of the roof ......in this pic i can see daylight ..... just poke it out the hole .... Job done ...no cutting ..... seal up the rest of the AC vent hole with duck tape ... all good