Am I being naive to think I can COMPLETELY kill the smell of Cannabis flowering?

I've completed 2 grows with some amazing results. I am now in the process of tweaking my 13' x 7' x 7' grow room.

I didn't have issues with heat since I grew in the fall & winter. With the summer fast approaching the outside temps will be 95+ degrees. So there is no way I can grow without an a/c in that room. I'm going to do the following upgrades

• Install 24,000 BTU mini split a/c system
• pull a 100amp sub panel off of my 200amp main panel
• mount my (2) 1,000w ballasts outside the room and put them on a dedicated 20amp breakers
• locate everything that generates heat outside the room
• pull some additional outlets from the sub panel so I can have power, power and more power without worrying about tripping breakers. All on dedicated breakers.

Here is what I'm concerned with and would love some input

During flowering my whole damn house and depending on the wind direction, some of my yard smells like weed. BIG TIME!

I'm going to line the floor, walls & ceiling with 20Mil heavy duty vapor barrier ($550 a roll & used in construction to prevent Radon gas from entering crawl spaces, etc!) and install a BIG can filter and HO fan to scrub the air in the room and hopefully eliminate seepage in to the rest of the house and the yard.

It is my intentions to have a sealed grow. I can pull cool air from INSIDE the room across my lights and just exhaust inside the room since I have a 24k BTU a/c. I do NOT want to intake or exhaust any air outside of the room. I want this bitch sealed 100%.

I'm not really worried about the heat. EVERYTHING that generates heat will be outside the room except the lights themselves. I'll have a HUGE 24k BTU a/c in a relatively small space so even with (2) 1,000w lights I should be able to hang meat in there! I also run a water chiller so I'm not worried about res temps. I also run CO2 @ 1500ppm.

This room is VERY stealth . . . Right up to the part where it smells like a dead skunk in the house/yard!!!

1. Am I being naive to think I can COMPLETELY kill the smell of Cannabis flowering?
2. Can someone tell me about positive & negative air pressure and how it may affect my ability to hide the smells in this scenario?
3. Is there anything I'm missing here?

You can click on the 'My Secret Garden' link in my signature to see my grow room. ANY input would be appreciated. Once I get this re-model complete I'm going to do an 18 plant RDWC grow that is going to be EPIC!!!

i would think that the air in that room would get stale really fast man. You are not going to be able to seal that room 100%, differences in indoor/outdoor temperature are going to cause +/- pressure.

if your filter is good enough and you have very good circulation it should be very mellow and stay out of the rest of the house. Doubt you can get rid of it all the way but pump the exhaust into a flower garden No one will no what's up man good luck

You don't have to seal the room for the odor control but I would do it for other reason; dirt, bugs, etc. You will be fine with a properly sized Can-Filter and fan sitting in the corner scrubbing the air or venting it outside the room. I have seen both work very well. It will completely take the smell out if you have the correct size filter and fan combo. My grow tent and garage stunk up until I put in a Can-Filter and now it only smells when I open the tent. Another thing, the Can-Filter acts as a muffler so it made my fan super quiet. I wasn't expecting that.

Good luck and keep it green!