Help sealing light hoods - Growroom Lighting - International Cannagraphic Magazine Forums

mariman · 09-20-2005, 09:20 PM

How do you recommend sealing the gap where the glass slides into the hood?

I am still trying to decide if I should seal the hoods I have or just buy some cooltubes!

What do you all think?

M

09-20-2005, 09:24 PM

weather strip comes with tha vent kits . never used it though

mariman · 09-20-2005, 09:49 PM

weatherstrips.........didn't come with my hoods, but, they must sell these at home depot or elsewhere. I was just thinking maybe like a high temp silicone or something.

Yeah, I need to seal for odor.

09-20-2005, 10:00 PM

If you have enough Suck the small amount of space is not a problem to consider IMHO. What's the wattage of the light and the CFM rating on your extraction fan? Are you dumping the smelly hot air into a filter or pulling through one?

Verite · 09-20-2005, 11:19 PM

Imo you can never have enough suck. :wink:

mariman · 09-20-2005, 11:25 PM

Two 1000w and one 412cfm, not using a filter, ducting from outside of room leading to outside of room. Sealed room. Co2 and humidity control. Air conditioner to control temps.

The last grow, during flowering, there was a noticeable amount of smell from the exhausted air. I noticed that where the gap is where the glass slides into the hood there was suction, obviously air being pulled from inside the room. So, all I had on hand at the time was some expanding foam that did the trick. But, this was messy, a pain to clean up, and blocked a bit of light.

So, I thought maybe someone on this forum may have had experience with this before and figured out how to seal the gap with a temporary sealer. If not then I think I will go ahead with the cooltubes that so many people seem to like. They do seem a lot more efficient.

Thanks
M

mariman · 09-20-2005, 11:27 PM

Amen, Verite!

09-20-2005, 11:37 PM

mariman...

A good option is the foil tape that's made for heating ducts. You can get this at Homer Depot..or a possibly a good hardware store. This isn't "duct tape", it's an adhesive foil tape...and it sticks very well to metals...etc. A strip of this across the gap will seal the air out.

The other option...is to have a seperate (inline is easiest) fan for the lights...ventilating from an outside intake...to an outside exhaust...BLOWING THROUGH the lights and out. By pushing the air rather than sucking it...you won't pick up any smell from the garden.

good luck

d

Guvnor · 09-21-2005, 01:34 AM

High temperature silicone- Easy enough to get.

Could use normal silicone-but with the bulbs ambient, it may start to peel. The high temp gear will withstand stupidly high temps before its starts to peel.

Hope this helps

Guv'nor

senseless · 10-19-2005, 02:19 AM

dont blow air through your hoods. suck it. when you blow air through your hoods heat from the bulbs escapes into your room and heats it up.

09-20-2005, 09:20 PM	#1
mariman User Join Date: Nov 2004 Location: earth Posts: 237	Help sealing light hoods How do you recommend sealing the gap where the glass slides into the hood? I am still trying to decide if I should seal the hoods I have or just buy some cooltubes! What do you all think? M
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09-20-2005, 09:24 PM	#2
guest3854 Guest Posts: n/a	weather strip comes with tha vent kits . never used it though
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09-20-2005, 09:49 PM	#3
mariman User Join Date: Nov 2004 Location: earth Posts: 237	hmmm weatherstrips.........didn't come with my hoods, but, they must sell these at home depot or elsewhere. I was just thinking maybe like a high temp silicone or something. Yeah, I need to seal for odor.
	Quote

09-20-2005, 10:00 PM	#4
Guest Guest Posts: n/a	If you have enough Suck the small amount of space is not a problem to consider IMHO. What's the wattage of the light and the CFM rating on your extraction fan? Are you dumping the smelly hot air into a filter or pulling through one? Last edited by WeedWrapperMan; 09-20-2005 at 10:04 PM..
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09-20-2005, 11:19 PM	#5
Verite My little pony.. my little pony Join Date: Jul 2005 Posts: 4,750	Imo you can never have enough suck. :wink: __________________ Strains by Verite .......................... Holy Grail Intro, Seeds at Seebay, Private Breeders Orange Diesel Intro, Seeds now at Seedbay
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09-20-2005, 11:25 PM	#6
mariman User Join Date: Nov 2004 Location: earth Posts: 237	Two 1000w and one 412cfm, not using a filter, ducting from outside of room leading to outside of room. Sealed room. Co2 and humidity control. Air conditioner to control temps. The last grow, during flowering, there was a noticeable amount of smell from the exhausted air. I noticed that where the gap is where the glass slides into the hood there was suction, obviously air being pulled from inside the room. So, all I had on hand at the time was some expanding foam that did the trick. But, this was messy, a pain to clean up, and blocked a bit of light. So, I thought maybe someone on this forum may have had experience with this before and figured out how to seal the gap with a temporary sealer. If not then I think I will go ahead with the cooltubes that so many people seem to like. They do seem a lot more efficient. Thanks M
	Quote

09-20-2005, 11:27 PM	#7
mariman User Join Date: Nov 2004 Location: earth Posts: 237	Amen, Verite!
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09-20-2005, 11:37 PM	#8
Guest Guest Posts: n/a	mariman... A good option is the foil tape that's made for heating ducts. You can get this at Homer Depot..or a possibly a good hardware store. This isn't "duct tape", it's an adhesive foil tape...and it sticks very well to metals...etc. A strip of this across the gap will seal the air out. The other option...is to have a seperate (inline is easiest) fan for the lights...ventilating from an outside intake...to an outside exhaust...BLOWING THROUGH the lights and out. By pushing the air rather than sucking it...you won't pick up any smell from the garden. good luck d
	Quote

09-21-2005, 01:34 AM	#9
Guvnor A right Wroung'Un Join Date: Dec 2004 Location: UK Posts: 547	High temperature silicone- Easy enough to get. Could use normal silicone-but with the bulbs ambient, it may start to peel. The high temp gear will withstand stupidly high temps before its starts to peel. Hope this helps Guv'nor
	Quote

10-19-2005, 02:19 AM	#10
senseless POTHEAD Join Date: Sep 2005 Location: the magical forest of marijuana Posts: 556	dont blow air through your hoods. suck it. when you blow air through your hoods heat from the bulbs escapes into your room and heats it up.
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