Author Topic: PVC Greenhouse  (Read 4526 times)

bubbafrga

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PVC Greenhouse
« on: November 03, 2009, 08:38 PM »
Has anyone used Conduit instead of PVC pipe in a HOOP GREENHOUSE? I have had two differnet types of PVC Greenhouses over the years. End of last season big store rain crushed my last PVC greenhouse. Having to build a new one this year.  Last year most of pvc was broken becuase it had become weak from UV light.

Pricing and UV resistance goes to Conduit but not sure if it is ridget enough....anyone has any every used Conduit?

Any suggestions would be appreicated
 

John Kirby

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Re: PVC Greenhouse
« Reply #1 on: November 03, 2009, 08:53 PM »
I have, never again. I would use top Rail for Chain Link. In arkansas I put hoops 6-8 feet apart. We have snow every year, have had big structures up 8 years. You can use PVC, but you need to build an internal wood frame using 4x4 posts and 2x4 stringers.

John
 

bubbafrga

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Re: PVC Greenhouse
« Reply #2 on: November 04, 2009, 12:40 PM »
Well Snow is one thing I don't have to worry about in south Georgia on the coast.  Last time is snowed here was in 89 we had 4" and was gone within 48 hours.   

I thinking the Conduit will hold up.  I have had PVC greenhouses and they have done great.  Last year the plastic came loose from one side and being I was going to take it down the following weekend I did not bother to reattached it.  Big mistake, big rain storm came.  Created a well in middle because one side was loose filed up with water and crushed greenhouse and plants in side.  Only had major damge to three fiscus and two were still in train stage.
 

John Kirby

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Re: PVC Greenhouse
« Reply #3 on: November 04, 2009, 05:02 PM »
You asked, conduit needs to be heavily reinforced for wind, etc. Cheers, John
 

bubbafrga

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Re: PVC Greenhouse
« Reply #4 on: November 05, 2009, 12:14 PM »
John, Thank you for your comments.
 

Brian Brandley

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Re: PVC Greenhouse
« Reply #5 on: November 21, 2009, 12:30 PM »
I've used conduit for a hoop house when I was in San Diego.  Good points - it's cheap and easy to put up.  Bad points - Santa Anna winds take it down.....but then again, it's easy to put back up.  Didn't have to worry about snow.  Staked out guy wires are pretty much essential.  I've never tried PVC so I don't know how it compares...

Brian
 

Rick Moquin

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Re: PVC Greenhouse
« Reply #6 on: November 22, 2009, 08:05 AM »
FWIW I prefer a more permanent structure. I used to use a hoop house for my Japanese dry garden in the front yard. It was more aggravation than not. In Nova Scotia we have lots of "heavy snow". I used to have a collapsible green house made of polypropylene, it lasted 3 years, UV got the best of it. This structure cost me roughly the same as all the rest. Constructed of PT lumber (goign out of business sale) this bldg will out live me.
 

Jerry Norbury

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Re: PVC Greenhouse
« Reply #7 on: November 22, 2009, 08:16 AM »
I'll have to be building one of these I see. My cheap PVC greenhouse is falling to bits...

Did you use a specific plan for this?
 

Rick Moquin

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Re: PVC Greenhouse
« Reply #8 on: November 22, 2009, 10:12 AM »
Just took the dimensions off the collapsible one Jerry. The reason was the limited space it occupies. The power pole guy wire is in the way on the left when facing the GH, and the clothes line that runs over the roof of the GH. You can just barely see the power pole, it is just above the peak. The bldg is 6x6x6 with a 4x12 roof pitch, with shelving there is more than enough room in there for all my trees then some. Being short, the height does not present a problem for me.
« Last Edit: November 22, 2009, 10:14 AM by Rick Moquin »
 

Jerry Norbury

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Re: PVC Greenhouse
« Reply #9 on: November 22, 2009, 10:29 AM »
Looks like there's a gap above the door - is that so?
 

John Kirby

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Re: PVC Greenhouse
« Reply #10 on: November 22, 2009, 01:34 PM »
We just finished covering the mid size poly house this morning- 45x18 with a 12 ft peak. I like the larger trapped air volume because we don't have the crushing snow like Rick has. Because we only use a single layer of poly film (5 mil white) the winfd and trapped heat helps to keep snow from building up, however we have had to g out with a broom to keep the snow from building up during the occasional heavy snow(>12-18")- once or twice a year usually. John
 

Rick Moquin

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Re: PVC Greenhouse
« Reply #11 on: November 22, 2009, 01:58 PM »
Looks like there's a gap above the door - is that so?
Ahhhhhhh, yes, ventilation. Woks like a charm and believe it or not, you will not find snow inside during the winter. Gable ends = black aluminium screening material.
 

bubbafrga

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Re: PVC Greenhouse
« Reply #12 on: November 22, 2009, 10:34 PM »
Here is the one me, my grown son and daughter and her husband built in about 7 hours over two days.  I've got about $350 in this.  The plastic should last for two years and the conduit should last for at least 6 years.   Its a 18 X 24.  Ive got a 4 x 6 window in back and a 2 x 4 window in front with door. 

Here is the plans that I used to build this.
http://www.hightunnels.org/ForGrowers/SitePlanning&Construction/Articles/CareyHow-toBuild.htm


 

bubbafrga

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Re: PVC Greenhouse
« Reply #13 on: November 22, 2009, 10:38 PM »
I've still got to build more shelfs in it.  Long weekend with thanksgiving hope to get finished up before the cold weather gets here.

Should hold up we had gust up to 30 miles an in the last two weeks and it hardly moved at all. 
 

Rick Moquin

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Re: PVC Greenhouse
« Reply #14 on: November 23, 2009, 08:46 AM »
Trees in bed for winter