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light penetration thru corrugated polycarbonate
- Thread starter gallito
- Start date
That is what we use-- I would say it is good enough--
That is what we use-- I would say it is good enough--
[URL=https://www.icmag.com/ic/picture.php?albumid=14795&pictureid=851085&thumb=1]View Image[/url]
Thanks for quick reply. this is the stuff I'm thinking of buying:
http://www.lowes.com/pd_12732-1115-...L=?Ns=p_product_qty_sales_dollar|1&facetInfo=
spook719
Member
A few people on here say to stay from the stuff from Home Depot or lowes because the uv rays will dry it out way quicker than the panels that are meant for greenhouses. I went with the solar soft 85 panels on mine. I would stick to something meant for greenhouse otherwise you'll have to replace it fairly quickly.
MiMedicineMan
Member
If the Manufacturer markets this as greenhouse panel, then it will work. it has to reflect some uv otherwise it would deteriorate too quickly. The more it reflects, the longer it will last. Some people have to buy shade cloth for their GH because too much sun...
btw Menards carries lots of greenhouse stuff in stock and in different sizes and qualities
btw Menards carries lots of greenhouse stuff in stock and in different sizes and qualities
Having done my homework, that's what I'll use if I ever get to build my happytime greenhouse...
thanks for the advice. I will check it out. Here was a product from Lowes that I was looking at:
http://www.tallantinc.com/Admin/Pag...ential/Tuftex Specs and Installation Tips.pdf
We use the ones from Lowes, and we have to replace it every 2-3 years-- But we are in the dessert--
I'm curious as to where the light transmission data came from? Didn't see it listed in the specs. ... Did notice that this is the PVC (Poly Vinyl Chloride)... not PolyCarbonate.
PVC has a much shorter life span than PolyCarb.... Just FYI
Don't know if you meant that product or not, and the second link comes up page not found.
Edit; The PolyCarbonate is about 30% more than the PVC, but carries a substantially longer warranty. I'm in the process of doing this myself. I didn't find the light transmission data... ended up buying the Smoke and the Clear. Flying blind here. lol
PVC has a much shorter life span than PolyCarb.... Just FYI
Don't know if you meant that product or not, and the second link comes up page not found.
Edit; The PolyCarbonate is about 30% more than the PVC, but carries a substantially longer warranty. I'm in the process of doing this myself. I didn't find the light transmission data... ended up buying the Smoke and the Clear. Flying blind here. lol
Sorry, I should have checked the link. I was actually interested in the poly carb. The spec's were from the Tuftex website, but I see they have taken it down. The white poly was listed as 78% light penetration; the smoke allows 85%, so you should be good. They're both listed as 100% uv resistant (10 yr. limited warranty for what that's worth).
Yeah, Tuftex from Lowes-- Works great...but we do have to replace it every couple years-- I just went with the clear at the GH at my house-- But for my work...that is 6000 sq ft-- So we have to use the white translucent--
As the old saying goes: We shall see. I just installed a Tuftex roof on my old tin shed (only a 4' X 6')... I used the smoked PolyCarbonate stuff.
Put a my plants in it and closed the door. Even with the roof propped open 3.5" at each eve it jumped to 85*F in less than 15 minutes. The sun is hot and direct up here at 7600' or so.
Hope I didn't screw up tooooooo, much. But at least I can turn off the lights now, and only need the fans to keep it good. May add some shade cloth as well. Time will tell.
We'll see what Jilly Beans does in Real light!
I live in an area with several days over 105 deg. F., so am installing a solar-powered attic fan in my shed to keep hot air moving out. Will also be installing several vents at the bottom of the walls to let fresh air in. I'm trying some Mataro Blue as Kannabia says it can handle the heat. Shade cloth may be necessary in my case too!
Commercial greenhouses have high roofs for a good reason. The hottest air stratifies at the top to be removed by fans & vents, leaving the growing area much cooler in the summer. In cooler weather, they close the vents, use fans to push the warmer air back down.
I'm confident that, come fall, Colorado couples who have the space, money & know-how will have tall 20'x20' greenhouses with 6 Colorado legal marijuana trees within...
I'm confident that, come fall, Colorado couples who have the space, money & know-how will have tall 20'x20' greenhouses with 6 Colorado legal marijuana trees within...
No doubt!
I'm just trying to be patient. Waiting for the outcome of the 64/regulation/tax/licensing BS they are working on. ..... As well as the Feds... whatever they are doing.
So I spent a $100 and put a PolyCarbonate roof on an old tin shed. That way I can grow up here and not pay the high elec. bills for the lights. I'll ease back to Denver this winter for the lower elec costs and grow indoor as needed.
Low stress and good times.
Do y'all remember them White lined tents?
Do ya know why they were phased out of production and replaced with mylar lined tents?
PVC, when in a hot environment, will break down and off gas toxins into your grow space. If those panels are being marketed as green house panels, as far as I'm concerned, it is false advertising, since it's known industry wide that PVC is toxic.
Poly carbonate is safe to use thus far.
I'd, personally, avoid using PVC for any growing space but to each their own.
Yeah, he linked to the wrong product-- I think he meant to show the "translucent" panels, which are Poly carbonate--
All the "Opaque" panels are PVC--
All the "Opaque" panels are PVC--
kmk;
Do they warranty the panels? Lowes description only says 'limited lifetime',,, was just wondering. I used these smoked ones... looking good so far but only up for a couple of weeks now.
http://www.lowes.com/ProductDisplay?partNumber=73146-1115-1419C&langId=-1&storeId=10151&productId=3043440&catalogId=10051&cmRelshp=req&rel=nofollow&cId=PDIO1
I am pretty sure I remember from keeping reptiles that Glass and Plastic filter different wavelengths of UV.
Has anybody noticed differing qualities of bud when grown under glass vs plastics ?
I have grown the same clones inside under lights and outside under the sun and found that outside you can grow better weed, imo, season dependent. This is due to the higher UV I think, but not everybody is convinced of this, especially when testing with UV lights indoors, mixed reports from what I have seen. There are old "hippie legends" of Ganja being grown highest up the mountain being the strongest and I believe this also true with Coca, it cannot be grown at all at low altitudes, and the +/- 93% varies a lot in quality mainly due to altitude [and chef..]
Has anybody noticed differing qualities of bud when grown under glass vs plastics ?
I have grown the same clones inside under lights and outside under the sun and found that outside you can grow better weed, imo, season dependent. This is due to the higher UV I think, but not everybody is convinced of this, especially when testing with UV lights indoors, mixed reports from what I have seen. There are old "hippie legends" of Ganja being grown highest up the mountain being the strongest and I believe this also true with Coca, it cannot be grown at all at low altitudes, and the +/- 93% varies a lot in quality mainly due to altitude [and chef..]
