06-09-2022, 01:53 AM
(This post was last modified: 06-09-2022, 02:05 AM by wiperhunter2.)
(06-08-2022, 03:26 PM)SkunkedAgain Wrote: Hey Curt how does that flat of top work with snow load for the winters? That's a wide span for not being too tall... We got the gothic roof profile to hopefully shed snow better, but I'm nervous about the wind loading being taller... Do you know how they anchored it down for wind? I'm sure hoping this doesn't turn into a really big kite when we get it covered... That is amazing to see what a beautiful crop they have grown so early in the year... I'm hoping we can get something to grow in ours... I wasn't planning on heating ours, but it would sure be nice to have early produce.. Thanks for the post... Jeff
It's not flat, it might look like it from the angle of the pic but it's curved. It has been up for 4 years how and so far, no problem, they claim the plastic used for a greenhouse will last for 6 to 10 years, depending on the conditions. That height is normal for a GH with a 30 ft width, it's about 8 ft at the peak inside, the difference is how it is set up. Wind will not be an issue as long as it's set up properly, it is very windy up there. I'm the one that set up the entire GH up there, it is anchored on the 4 outer corners by a 50lb bag of post hole concrete. I dug about a three foot deep hole on all four corners, filled them with concrete, then used a line to make sure all the other support arches were level with those first two. All the other arches I just used dirt and old bricks, to hold them in place, until I got the upper supports in place that keeps them from shifting. When I bought this GH, it was set up different and it would have been way more expensive to set up, if I had used that method. The guy I bought the GH from had all the supports above ground, with concrete on each arch and a 4 ft piece of pipe anchored in the concrete, once it set, he simply put each of the arch ends into each pipe, leveled it and installed the plastic. He spent over $1,000 more than I did with the method he used. With the method I used we still have plenty of room to get to the outside edge of the GH, he of course had even more room but it really isn't needed to grow vegetables but he wanted it tall enough to drive a tractor into it. For the first three years this GH did not have a heater, the DIL put one in last Winter so they could grown all year long, just in case things go South, she also hooked it up to well water so they did not have to rely on secondary water.