Making my grow room air tight!!

Hello i am setting up a wooden structure based on the jorges cervates grow DVD vol.1

It will consist of a room ; 3m long/2m wide/3m high
It will have mylar walls excactly like jorges however i have encountered a PROBLEM!

The room needs to be air sealed because:

1) the smell does not escape

2) drawing a rapid air flow through the room is more effective in a sealed system

3) Keeps bugs/ humidity down and temperature is easier to maintain.

Any suggestions on ways to keep this room sealed would be appreciated.
Cheers!

Spray insulation. It will seal seems around material.

Panda film and gorrilla tape all the way around works great then good weather tight zippers and plastic to go over door which is the hartdest part to get airtight

I'm going to put your mind at ease here...you don't have to have it air tight totally...just make sure it's light tight, and here's why :

IF your air exchange is running constantly(as it should be), then make sure you're using a passive air intake and restrict it a bit so that it will pull air in from the cracks as you SHOULD have a drop in pressure in a good set up. When you close your door, it should pull itself shut(unless its a tight door, but you should still hear that air vaccumm).

By doing that, you're making sure that all the air that goes out, is going thru the filters and you acheive that by having a strong fan pushing your air out and passive air intakes.

iv spent 5figures on my 6kroom 2x6walls 3/4plywood drywall and 6mill plastic i caulked everything
even the elect boxes and taped all plastic seams and staples i went the extra mile at everything
in hindsight i wish i would have sprayfoamed evertthing i think this is the best way by far its airtight it seales
everything and if pests eat it it kills them its not cheap bit well worth is also in a sealed room rh is a huge factor it takes me 125pints of
dehumidfiers to keep a 16x12 room down to 45%rh 10amp in dehumidfiers along with 2inlines and 4 mixers
its alot of work and money to do a true sealed room not to mention 4tons of ac for 1room so if thats the route
you go be prepared to open your wallet to do it right

T.H.Cammo said:

Making your grow room "Airtight" might make you feel better, but I assure you it is uneccessary and irrelivant. As long as you maintain a "negative pessure" in your grow room, there is no place for the air to go, except out the exhaust port. All the air,and smell, and spent CO2 will just work it's way towards the exhaust fan.

Click to expand...

Yes yes and yes. Negative pressure is all you need. Don't over complicate it. Exhaust it out via a carbon filter like everyone else =P

You know, you can save yourself a lot of work by just buying a tent, they make them that big.

I actually poke a very small hole (tiny, just 3/16" diameter) through the wall in between each pair of studs (spaced 16" apart) in a small cloning room where I had no choice but to laminate my foamboard directly on the existing drywall with no air gap. It is only one wall where I couldn't achieve an air gap (because of space constraints) and to insure that the lights inside that room does not heat up the air space within the interior of that wall, I choose to make the exhaust fan suck in a tiny amount of that air or else it could heat up a bit and travel upward through the interior framing behind the drywall. The negative pressure of the room is still maintained.