growing in attic

Discussion in 'First Time Marijuana Growers' started by garfro, Mar 24, 2009.

  1. Hi GC

    Germed 12 seeds 10 are all between 2-3 inches high and as title says are in my attic (this is fun by the way) wanna scrog them when they sex
    Question.....it can get hot up there( im in Socal)will fans keep it cool enough?
    havent built my flowering box yet but there are a lot of vents that go to the top of 2 storey house will that dissipate smell being up so high.
    pix to come

    G
     
  2. anyone!!!!
     
  3. if you can keep it around 70-80 degrees with fans, then yes, fans will keep it cool enough.
     
  4. Thanks squim,,,,,,,,,gotta work out how to keep temps down in dark box prolly stick to CFLs and fans.
    promise to get pix soon.

    G
     
  5. Fans probably won't do anything.

    Fans do not lower the temperature of the air. They do 2 things: the move air into a space or out of a space, and they increase the evaporation rate. That second item we can ignore for MJ growing, that is why a fan "feels" cool to our skin. But the first point is the issue -- moving air of the same temp around doesn't change the temp. You need fans to move cooler air in and warmer air out in order to cool down your grow space.

    Attic grows are very problematic for this reason. On a sunny day the sunshine beats down on the roof and the attic traps heat like a greenhouse. So you can expect the ambient temp in the attic to be 10-20F above the outside temp, and then if you have a grow box with lights in it inside the attic you can expect temps in there to be 10-20F above the attic. You will need to move large amounts of cool air in there and probably also need to insulate all the way around to make that attic grow work. And, it is only going to get warmer and warmer over the next few months, making the problem even bigger.
     

Share This Page