Ventilation and Exhaust

nicky(g)

nicky(g)

Active Member
Okay, so my question is about where to send my exhaust air. I was thinking about drilling a hole in the ceiling drywall and exhausting the air in between the two floors. Would this be enough space for exhaust. There is 12 feet til the outer wall and about 2 feet in between each of the floor joists. I know its not alot of room but I nots exactly air tight between each joist eithe. Well everyone tell me what you think.
 
M

mrmadcow

Well-Known Member
its not exactly air tight between each joist, but it wont give you much flow either. how big is your room? it might work for a small closet but better ways exist for anything larger. getting it up high (2nd story or better)is good to keep odors unnoticed by neighbors. a carbon scrubber works good.
I have vented into another unused room and run an ozone generator in it(the unused room), then vented that room out a clothes dryer vent to outside.
 
keeger123

keeger123

Well-Known Member
unless ur just growin a 2 or 3, that used air should be sent outside or ur gonna have mold n mildew problem in the future, depending on how many ur growing. cut a 4" hole thru the wall to the outside, just above the foundation if in a basement, right in the middle of the wood plank. put a carbon filter on the exhaust, odur socks r useless. U'll be sorry if u keep that stale air inside, even if there's no smell
 
WhiteWiddow

WhiteWiddow

Active Member
what if you were to send it to an atic? i have 3 feet of blown insulation in my atic and was wondering if it would be bad to run a duct up there
 
keeger123

keeger123

Well-Known Member
WhiteWiddow said:
what if you were to send it to an atic? i have 3 feet of blown insulation in my atic and was wondering if it would be bad to run a duct up there
Click to expand...
well how bout running 4" ducting in ur atic from inlet to outlet? so u never actually release any stale air into the atic; cut a 4" hole in the roof, $35 for the 4" hole saw bit 4 ur drill, real easy, get a roof hood, 40 bucks, some hoods say use 4.25" hole so be careful. that is unless ur not too concerned about mold...
 
WhiteWiddow

WhiteWiddow

Active Member
keeger123 said:
well how bout running 4" ducting in ur atic from inlet to outlet? so u never actually release any stale air into the atic; cut a 4" hole in the roof, $35 for the 4" hole saw bit 4 ur drill, real easy, get a roof hood, 40 bucks, some hoods say use 4.25" hole so be careful. that is unless ur not too concerned about mold...
Click to expand...
what about my shingles and shit
 
keeger123

keeger123

Well-Known Member
WhiteWiddow said:
what about my shingles and shit
Click to expand...
cut the hole from the inside out, right thru the shingles if u can, or just through the wood, then cut the shingles n shit with a utility knive so u have ur 4" hole. then get on the roof and slide ur ducting on the backside of the roof hood through the hole, silicon around the hood with the most weather-resistant shit u can find. then a back-draft dampner on the inside after the hood vent, unless the roof hood already has one inside. then ur ducting... seal around the inside with silicon too. there will be instructions on the roof hood for hole size and insallation. ask the ppl at the store where u get the hood for any tips on installation
 
nicky(g)

nicky(g)

Active Member
So this is my logic... I'll exhaust it in between the floors and it will disperse throughout the house. There are holes drilled for wiring between the joists and its not air tight so I figure the air has to go somewhere. As long as the exhaust air is not coming back into the grow closet then no problem right????

I think I'm going to test it out, unless anyone has anything to point out that I may have missed, If it doesn't work I will put a vent in the ceiling of the adjacent room, directly between the same joists I am venting between.

Thanks for the great input everyone!
 
D

ddwall

Active Member
Don't exhaust between your floor joist vent it to your exterior wall or at least into another room I have been in the home building business for 30 years I know I am old.
 
M

mrmadcow

Well-Known Member
most attics have some wall space or eaves,you could pipe up to attic and vent out the wall/eave. homedepot has bath fan vent kits
 
You must log in or register to reply here.
Top