Spray foam the grow room?

O

Orin190

Well-Known Member
Wife is pissed... last grow wreaked the whole house of some dank.

Wifes solution - quit growing

My solution - seal er up and grow more.

I'm growing in a room i built in the basement ~7'x10' and want to have a spray foam company come in and spray the walls and ceiling. I caulked the bottom perimeter and painted redguard about 5'' on the floors and all the way up the drywall and studs on the inside of the room... why so much idk maybe it'll help maybe it won't but it can't hurt.

Anyways, my question before i spend 2k on this. Has anyone done this and if so did it cut down a lot if not all the smell? I am currently ventilating directly outside through a dryer vent in the wall with aci filter (not too worried about the outside smell) and also running a 4'' aci filter in the room to scrub the air.

They would use a closed cell spray foam.

After the spray foam I plan on encasing the room with panda film as air tight as possible as well.. It probably won't be perfect as this is what i did and it stunk in the home but helps with lighting and also maybe an extra layer of protection on smell?

Also, recommendation are more than welcome!
 
marzig

marzig

Well-Known Member
Orin190 said:
Wife is pissed... last grow wreaked the whole house of some dank.

Wifes solution - quit growing

My solution - seal er up and grow more.

I'm growing in a room i built in the basement ~7'x10' and want to have a spray foam company come in and spray the walls and ceiling. I caulked the bottom perimeter and painted redguard about 5'' on the floors and all the way up the drywall and studs on the inside of the room... why so much idk maybe it'll help maybe it won't but it can't hurt.

Anyways, my question before i spend 2k on this. Has anyone done this and if so did it cut down a lot if not all the smell? I am currently ventilating directly outside through a dryer vent in the wall with aci filter (not too worried about the outside smell) and also running a 4'' aci filter in the room to scrub the air.

They would use a closed cell spray foam.

After the spray foam I plan on encasing the room with panda film as air tight as possible as well.. It probably won't be perfect as this is what i did and it stunk in the home but helps with lighting and also maybe an extra layer of protection on smell?

Also, recommendation are more than welcome!
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It's got to help. It's used in new construction a lot now as it;s a good vapor barrier and to stop air infiltration. Do you think some odors could be leaking out when opening and closing your door? Maybe have two doors and create a rudimentary airlock between.
 
Rocket Soul

Rocket Soul

Well-Known Member
MissinThe90’sStrains said:
Filtration, buddy, lots more of it.



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+ 1, scrubb the air of the growspace thru some type of filter, carbon should do it. Filter capacity should be larger than the fan for really slowly pulling air thru the filter. It also helps if there are airborne pathogens
 
medidedicated

medidedicated

Well-Known Member
People can still smell it with a filter you just get noseblind to it. Harvesting is going to blast the place, always does for me unless I exaust outside and use the same concept but turn the whole 10’x10’ room into a negative air pressure tent.

I cant do this in summer time though, warms up the entire house. Just a thought 2k sounds like a lot, I blew over a grand I just gave away in equipment. Id try to get all input you can before spending that. To me smell is the easiest thing to control.

Just need negative air pressure works like a charm. No matter how many holes in the tent or space, it will suck through them. Smell cant escape. I dont think air tighting the place will do anything. Need good enough ventilation.

A 6” s line vortex can vent my whole room. But even the carbon filtered air still smells but its harder to narrow down where its coming from when outside. Venting back into home the whole home will still smell to sensative non users. My hvac guy said hell yea I smell it. I thought he was lying.
 
marzig

marzig

Well-Known Member
eddy600 said:
I vent mine up into the attic above my neighbors noses. Haven't had any mold problems over the last 15 years.
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Me too. I tried it once in the winter without a filter. I could catch occasional whiffs of it outside so I know others would probably be able to smell it easier than me. The filter went right back on.
 
S

SBNDB

Well-Known Member
Is the exhaust fan the only thing using the dryer vent you’re exhausting out of? One time way back i tried putting a“wye” on my dryer vent, and the grow room exhaust just blew back into the dyer hose and into the dryer. Vice versa with the dryer blowing into the grow room fan. Basically my clothes smelled like weed and my grow room smelled like bounce.
 
ttystikk

ttystikk

Well-Known Member
Orin190 said:
Wife is pissed... last grow wreaked the whole house of some dank.

Wifes solution - quit growing

My solution - seal er up and grow more.

I'm growing in a room i built in the basement ~7'x10' and want to have a spray foam company come in and spray the walls and ceiling. I caulked the bottom perimeter and painted redguard about 5'' on the floors and all the way up the drywall and studs on the inside of the room... why so much idk maybe it'll help maybe it won't but it can't hurt.

Anyways, my question before i spend 2k on this. Has anyone done this and if so did it cut down a lot if not all the smell? I am currently ventilating directly outside through a dryer vent in the wall with aci filter (not too worried about the outside smell) and also running a 4'' aci filter in the room to scrub the air.

They would use a closed cell spray foam.

After the spray foam I plan on encasing the room with panda film as air tight as possible as well.. It probably won't be perfect as this is what i did and it stunk in the home but helps with lighting and also maybe an extra layer of protection on smell?

Also, recommendation are more than welcome!
Click to expand...
The smell follows the air. One important method of mitigation is to run a carbon filter and fan in the space all day and all night- but just leave it open in the room. That will help.

Your biggest problem will be ventilation and I think you need to consider venting very little and using remote temperature control, either a mini split or a water cooled air handler and a chiller. You will also need CO2 supplementation, such as a tank and regulator. Good news; a well sealed room will be very frugal. Also, use a vestibule/airlock and two doors to reduce smells when entering or leaving the space.

If you vent AT ALL, it needs to go through a fresh charcoal filter AND a UV or ionizing stage to address the smell. Run it only as needed and best if it's at odd hours.

Finally, you'll need to treat your drying, training and curing the same way as your grow room. Maybe run one batch at a time so you can do it all in the same space.

Hope this helps!
 
Rocket Soul

Rocket Soul

Well-Known Member
ttystikk said:
The smell follows the air. One important method of mitigation is to run a carbon filter and fan in the space all day and all night- but just leave it open in the room. That will help.

Your biggest problem will be ventilation and I think you need to consider venting very little and using remote temperature control, either a mini split or a water cooled air handler and a chiller. You will also need CO2 supplementation, such as a tank and regulator. Good news; a well sealed room will be very frugal. Also, use a vestibule/airlock and two doors to reduce smells when entering or leaving the space.

If you vent AT ALL, it needs to go through a fresh charcoal filter AND a UV or ionizing stage to address the smell. Run it only as needed and best if it's at odd hours.

Finally, you'll need to treat your drying, training and curing the same way as your grow room. Maybe run one batch at a time so you can do it all in the same space.

Hope this helps!
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T brought out all the Big Guns for odor control! We get by without uv/ionising but used to run ozone generator. This will require breathing gear aswell; it was always my growbuddy who handled it. I was secretly happy when the ozone broke, that stuff is really toxic smelling but kills both smells and mold, goes away by itself after a while We ran it inside the grow space and not at outtake. Im pretty sure there is nothing more you can do about smell apart from growing weed that doesnt smell much but whats the point in growing mids/lows?
Running a good carbon filter setul inside your growspace scrubbing the air would probably be the first thing to try: it will be the most bang for buck, least complications and easy to explain to wifey of OP: air gets constantly filtered and then filtered again at going outside. Ozone, new sealed setup with AC and co2 tanks: all that solves problems with smells in the grow but likely not a suitable solution to placate an angry boss lady...
 
ttystikk

ttystikk

Well-Known Member
Rocket Soul said:
T brought out all the Big Guns for odor control! We get by without uv/ionising but used to run ozone generator. This will require breathing gear aswell; it was always my growbuddy who handled it. I was secretly happy when the ozone broke, that stuff is really toxic smelling but kills both smells and mold, goes away by itself after a while We ran it inside the grow space and not at outtake. Im pretty sure there is nothing more you can do about smell apart from growing weed that doesnt smell much but whats the point in growing mids/lows?
Running a good carbon filter setul inside your growspace scrubbing the air would probably be the first thing to try: it will be the most bang for buck, least complications and easy to explain to wifey of OP: air gets constantly filtered and then filtered again at going outside. Ozone, new sealed setup with AC and co2 tanks: all that solves problems with smells in the grow but likely not a suitable solution to placate an angry boss lady...
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Ionizing the air is what an ozone generator does! We're on the same page. And yes, definitely vent it outside because you didn't want to be breathing it.

BEWARE of AC units; they're not generally designed to be air tight and the condensate that they make will stink!

That's why I was very specific about using a mini split or a water cooled air handler; that way there is zero air mixing going on.
 
Rocket Soul

Rocket Soul

Well-Known Member
ttystikk said:
Ionizing the air is what an ozone generator does! We're on the same page. And yes, definitely vent it outside because you didn't want to be breathing it.

BEWARE of AC units; they're not generally designed to be air tight and the condensate that they make will stink!

That's why I was very specific about using a mini split or a water cooled air handler; that way there is zero air mixing going on.
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Right on, point i was making is not only do you need to work on smells, theres angry wife syndrome to take into account and a solution needs to be fit for that situation: a solution that works but she doesnt like is only get her to digg in her heels in the no grow stance. Theres a sorta "marketing" aspect to this, lol, and "constantly filtered then filtered again" feels like a line that could be pulled from a TV add; which generally have a way of working with the ladies which r
technical/rational approach seem to lack... Just make sure its a really well designed fan/filter combo and high speced filter, both on extraction and in growspace and keep in mind that the filter will work less in high humidity; keep working every angle. Getting the door sealed around all the edges, strong negative pressure inside so nothing can escape unless thru the filter means that even if there was some leak the air will go in towards the grow rather than smells seeping out...
It will be easier to convince her to change and upgrade equipment rather than having people in to fit a split and sprayfoam: if you bringinh people in for remodel then expect demands of kitchen remodeling in the future in the name of wifey fairness... If it doesnt work completely there is at least a sunken cost argument which can ring valid in her ears, lol
 
Roy O'Bannon

Roy O'Bannon

Well-Known Member
Can you swing a separate building downwind from your house, because that's what it will take to keep the weed smell out imo.
One of those portable sheds sprayfoamed and put a mini-split in it.
 
Rocket Soul

Rocket Soul

Well-Known Member
curious2garden said:
New wife? I must mention how nice my nursery pots look after a run through the dishwasher LOL!
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When/if you have kids youll be a MIWGF: Mom I wanna grow with. Talk about finally one that really "is the table", hard to bring anything better. Apologies to mr Curious and no disrespect meant i just cant stop joking around, lol
 
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