Why this styrofoam insulation?
hey guys, new to the forums.
ive been doing alot of reading and studying on this site and A LOT of others lol, but i still need some help finishing my setup. i want to explain my setup, and ask some questions after.
but basically whats going on...is me and a long time friend are going to try growing. we are currently building in his basement. we bought some lumber and built a 5 foot deep, about 6 foot high, and 8 foot long box that is separated in the center of the 8 foot stretch to create two rooms side by side that measure around 5x6x4 (one for veg and one for flowering). we bought a smaller tarp to wrap the bottom peices of lumber to create a tarp floor, then built and nailed lumber from the bottom part and up (if that makes sense). we did that to help with it being air tight. yesterday we bought more tarp and tarped the rest of the structure and used a lot of staples from staple guns to staple the tarp to the wood.
next we then cut a slit in the tarp the shape of a small door (around 2 foot wide and 3 foot high). we made an actual door by using a panel of styrofoam insulation, and stapled it to the open flap in the tarp. we made the cut smaller then the actual insulation door to that it would overlap the tarp from the outside. and we used velcro strips on the overlapped parts to create a good seal. we plan on doing this for both sides, but we only need one door to have access to the inside because we havent actually separated the two rooms yet. its just 2x3 wood beams that separate it for the moment, so both rooms are accessible.
we are now in the process of putting up the rest of the insulation. we are using 1/4 inch thick cheap styrofoam insulation panels that measure like 3 foot by 2 foot or so. maybe a bit bigger. we are tucking them in between where the wood and tarp meet, then stapling them from the outside of the structure so it stays on the wood. we are doing this on every side and the roof. and duct taping the panels flush with eachother, and anywhere else that may need it on the inside. then either stapling or hot gluing aluminum foil to all the insulation panels, and the inside of the doors. thats basically what were doing structure wise. if your interested in some pics, im sure i can snap a few.
our light setup were going for is 600w HPS for the flowering room, and 600w MH for vegitation. but i think for one grow were only going to use one room (maybe 5 or 6 good plants. we dont want to get too ahead of ourselves).
so far we have the light situation, and structure situation settled....i think. what im concerned of is ventilation, and co2. before i go buying supplies and cutting or building onto anything, i want to be 100% sure how im going to set it up. so far we have a carbon filter, that has a 190cfm fan connected to it (it came with the 600w hps bulb and the ulti lumenx dimmable balast that we bought off a guy off CL for 150 bucks). now my question is...would that fan be enough to properly exhaust a room of that size? with both rooms i think the total cubic feet is around 240. so the one room we plan on using for the first grow is around 120. also, i heard that the intake fan has to be rated with less cfm than the exhaust or it will cause a negative pressure or something. is that right? another thing is we plan on mounting exhaust piping near the front of the bulb, so the exhaust will pull heat away from the bulb (since we dont have an air cooled hood), and have another seperate exhaust vent for the room itself. then connecting both exhaust pipes into one that will run into the carbon filter. and having the intake fan mounted through a hole built into the tarp and sealed towards the bottom of the room. and of course having the oscillating fan in the room for circulation. does that sound okay? or am i missing something?
another question is about co2. were wanting to use co2 after we get the room up and running and after we have all the *querks* so to say of the room settled. because im not trying to blast the room with co2 when we first start it up and kill myself or ruin plants. my question is, i read online on a forum that co2 is pointless to use in a ventilated room setup because the co2 can escape through the open intake ports, and really only works on a enclosed room. is that right? for some reason i feel like its not. but then again im not experienced in this yet. also the open intake port worries me, could i rig up some sort of filter to filter any dirt/debris from the basement so it dont enter my room??? or am i looking at the intake system all wrong?? another question is, what all parts would i need for a co2 setup? from what ive read, ill need a co2 tank. (im buying a 20 pound this week). a regulator and timer, or a controller. or do i need all of those? i just want to buy a tank, hook it up, and have it come on with the lights and shut off when im at the right amount of ppm, be like that for a few hours (or however long you think is best because idk), exhaust, and do it again.
sorry for all the noob questions. i really want to make sure i have everything i need and a complete understanding of how everything is going to work before i buy or build/set it up. thanks for any help!
Why this styrofoam insulation?
Aw did I hurt your little ass feelings, sweetheart?
well, we decided to use thin insulation and put aluminum foil on the insulation to help keep heat/light inside. we could see light penatrating the tarp at first. is that a bad idea??
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Wake up bake up
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for sure man, give me a few minutes to snap and upload.
you want heat to esacpe not trap itself in your grow and with an HPS and MH its gonna get hot
so, you want heat to escape even with the exhaust setup? i thought the exhaust was supposed to be what gets rid of the heat inside the grow room?
pics posted for anyone who cares. its a work in progress still. we are putting a support beam for the door so its not so flimsy. still need the rest of the insulation and aluminum foil.
so nobody can give me any feedback with the qquestions i posted?