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Sealing piece of plywood to window for ventilation

Discussion in 'Grow Room Design & Setup' started by Jamesbong96, Oct 12, 2017.


    Jamesbong96 Member

    I was curious if anyone had any good ideas on what I could do to properly seal a piece of plywood to the window because that was how i was planning to exhaust the heat from my lights, but i can't risk bugs or other particulates on my herb.
    Any ideas are appreciated.

    ANC Well-Known Member


    Jamesbong96 Member

    My fault I forgot to mention that this is a leased property. My experience to renovating or building anything is limited to my couple of grows. Can i get rid of it pretty easily once I were to need to move?

    vostok Well-Known Member

    2 - 4 small screws and a lick of paint

    works wonders

    good luck

    coreywebster Well-Known Member

    bit of both, Screw the wood to the window and caulk round the edges. When you want to remove it unscrew and peal the caulk off, caulk and touch up the screw holes.
    Give the plywood a couple of coats of preferably oil based paint or varnish to protect it from mould and make it moisture resistant before you install it.

    Jamesbong96 Member

    Thanks, I'll definitely do that. Appreciate the advice.

    NewGrower2011 Well-Known Member

    I used pipe foam like for water heaters to make a foam ring around my window enclosure (light/noise block reasons only for me, not open to outside air/contaminants). If you have a way to draw things down tight that will make a nice seal. I had a narrow space so I used eye screws into the corners and then used those draw-dawn strap clamps to hold it snugly against the window. It rests atop another small 2x4 footing structure to help hold things vertically in place.

    Also - if someone does seal a window better make sure it has *some* way to vent hot air. My first go at it I had pvc blinds and it got soooo hot they literally were warping and fell out of the side holders. I had the window closed and the window cover had insulation, basically turned it into an oven between the window and my covering. I now use a blind with a metal header for that reason; I don't need prying eyes seeing the covering (it faces the street so can't be having it fail). It was later I noticed the cracking all around my window frame - the heat created so much pressure it was causing damage literally. So don't make my mistakes.

    BigHornBuds Well-Known Member

    remove the mounding around the window
    Paint the side that will be facing outside black
    I hang blinds in there , so from the outside it just looks like a dark room
    Where you'll be venting through it, make sure to get HD blinds and anchor it to the bottom so it doesn't move around. Open the window b4 screwing the plywood.
    Cut a hole for your exhaust , mount the board.

    If your trying to be stealthy, and the room your using is somewhat sealed , blowing exhaust air out your window will create a negative pressure in the room and air will be rushing through any spot it can, making nose trying to equalize the pressure.
    The more cfms the bigger this problem becomes.

    SchmoeJoe Well-Known Member

    If you use caulking make sure to put down a strip of masking tape first. When the time comes to pull it off you can just peel the tape off instead of having to deal with cleaning the dried caulking off of your walls or window frame and having to repaint. The only other thing you'll have to do is put a little wood putty in the screw holes that are left in a color that matches what's already there.
    Last edited: Oct 18, 2017
    Jamesbong96 and BigCityGrow like this.

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