Light Proofing Door Ideas

RuggedWombat

RuggedWombat

Well-Known Member
I'm having an issue with light pollution currently. Long story short, the grow room has a single standard bedroom door where light pollution is inevitable under the door. I need a way to block the light while still allowing air from the exhaust to exit the room. Cutting the door/wall is not an option.

My first thought was just put a towel under the door, but I worry about fresh air circulation in the room and possibly temps with the lights off. Currently, I lean a piece of cardboard against the door with a cutout at the bottom for the exhaust hose to push air under the door. However, light still leaks from the sides and is bright enough to read a book in the dark.

Does anyone have any ideas on light proofing while not sacrificing air flow? Is air quality even a realistic concern in a 2x4 tent with no supplemental C02? I suppose I could attach a towel or something to the sides of the piece of cardboard to cover the sides as well, but surely someone here can Macgyver something better than I can come up with.

Final note: I need to be able to exit through said door before the lights go out, so it has to be something I can either set up as I close the door or from the other side when it's closed.
 
Absorber

Absorber

Well-Known Member
RuggedWombat said:
I'm having an issue with light pollution currently. Long story short, the grow room has a single standard bedroom door where light pollution is inevitable under the door. I need a way to block the light while still allowing air from the exhaust to exit the room. Cutting the door/wall is not an option.

My first thought was just put a towel under the door, but I worry about fresh air circulation in the room and possibly temps with the lights off. Currently, I lean a piece of cardboard against the door with a cutout at the bottom for the exhaust hose to push air under the door. However, light still leaks from the sides and is bright enough to read a book in the dark.

Does anyone have any ideas on light proofing while not sacrificing air flow? Is air quality even a realistic concern in a 2x4 tent with no supplemental C02? I suppose I could attach a towel or something to the sides of the piece of cardboard to cover the sides as well, but surely someone here can Macgyver something better than I can come up with.

Final note: I need to be able to exit through said door before the lights go out, so it has to be something I can either set up as I close the door or from the other side when it's closed.
Click to expand...
Buy a grow tent for the room it will be easier than farting around ;)
 
HandyGringo

HandyGringo

Well-Known Member
Agree with buying a grow tent. Or buy a light-proof ventilation baffle thing install it on your door and then lightproof the bottom.

www.led-grower.eu

Secret Jardin Light Baffle DF16 | led-grower.eu

Secret Jardin Light Baffle DF16. The Ducting Flange enables you to create vents anywhere on your grow tent and to simplify your setup. Thanks to their 100% hermetic design, you will connect easily your filters, ducts and extractors. Using the Light Baffle, your Ducting Flange will also act as a...
www.led-grower.eu www.led-grower.eu

Or buy some regular flat plastic ones from Home Depot or whatever, cut a hole in the door, and have a baffle on each side of the hole, one pointing up and one pointing down, which should block most light while still allowing air to enter

Something like this

images.jpg
 
RuggedWombat

RuggedWombat

Well-Known Member
I appreciate the feedback, but I think y'all are missing a couple of caveats. I already have a grow tent in this bedroom. It's a 2x4x5. I also absolutely cannot cut through the door or wall to install anything. What I have to work with is the crack under the door. Best options are either seal the crack all together and hope lack of being able to exhaust the tents air doesn't hurt the plant, or allow the exhaust under the door and find a way to seal the remainder of the door crack, but in a way where the door is still operable. The solution would need to be removable as well as during the day I need the entire length of the crack under the door to exhaust as much air as possible. I suppose another option would be place a furnace filter over the tent vent flap so air can still flow through, but light will be reduced.
 
Billy the Mountain

Billy the Mountain

Well-Known Member
RuggedWombat said:
I appreciate the feedback, but I think y'all are missing a couple of caveats. I already have a grow tent in this bedroom. It's a 2x4x5. I also absolutely cannot cut through the door or wall to install anything. What I have to work with is the crack under the door. Best options are either seal the crack all together and hope lack of being able to exhaust the tents air doesn't hurt the plant, or allow the exhaust under the door and find a way to seal the remainder of the door crack, but in a way where the door is still operable. The solution would need to be removable as well as during the day I need the entire length of the crack under the door to exhaust as much air as possible. I suppose another option would be place a furnace filter over the tent vent flap so air can still flow through, but light will be reduced.
Click to expand...
It most certainly will.

I don't know your configuration, but it's hard to imagine that light from a door gap will cause light pollution to the tent inside. The tent has a a zippered door? What's the concern?

Maybe I'm overlooking something obvious, but the only real problem is blocking all fresh air access.
 
coreywebster

coreywebster

Well-Known Member
Agree , light under a door isn't going to do anything, unless the issue is light from in the room coming out into the hall?

Anyway, just Google light baffle or light trap.
Then construct something that you can tape to the door .

Though I don't think it's necessary.

I have open vents on my veg tents and my flower tents in same room don't care..

But if you really want to the a light trap is the way
 
F

Fladawg01

Member
Get a door insulator for the bottom of the door on the side you open it from. Once you leave the room after lights out, you put it down across the bottom. They are made to prevent drafts and cold air in the winter for many, but in your case use it to prevent light and still allows you entry and exit as well as light blocking. Find plenty on Amazon.
Maybe this:
MAXTID Under Door Draft Blocker Black Door Draft Stopper 38" Noise Reducer Breeze Light Cold Air Guard Sound Proof Door Sweep 32" 36" 38" Weather Stripping Door Bottom Seal Insulation Strip Gap Filler
 
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