Your saying a foot and a half thick concrete isn't that strong ? And the actual size is 8x12 and the stairs going down make up the other .. what is rack resistance? And are you saying my well will get contaminated ? Sorry for all the questions I'm just wanting to make sure everything is ok before I go ahead with this if I have to I can still store the fuel in my garage just trying to utilize the empty space in top plus every time it rains the flat doors leak so I need something to cover it all
Sent from my iPhone using Tapatalk
Your concretebis 1.5 ft? Have a photo of the slab? Thats serious thick concrete. That's part of the confusion of the one post, he thought it was 1.5 inches thick...
Next think rack strength or racking is the tendency of the building frame to bend or bow or wiggle around. The plywood will create angular support that will kewp everything solid and square. In my opinion ribbed tin siding will do the same thing. Its quite strong and stiffens the wood just like OSB. Also some triangular supports in your stick framing can help too.
Next purlins are the best way to do tin unless you do sheet the whole building. Tin really needs someplace to run a screw in every 12 inches or so (every rib) and its way to hard to get stub frames that perfect.
I also feel for what your doing a post building may be easier and cheaper... put 3 or 4 posts on each side and purlins wrapped around and hang your tin up.
Final thought...Im in the same boat as the other guys about being nervous with chemical storage right over a well. I donno if you're drinking from it or just water plants but still...
I would worry the effects of some crazy accident causing a gas can or fertilizer container getting knocked over, damaged and leaking into your water. Is it likely, probably not, worth the risk, also probably not...
Only you know the total situation and all risks and if thats worth it to you. As long as you know and understand then I say use your own judgement and go from there. Maybe your well is much more contained than a literal hole in the ground like what im familiar with, I sure dont know.
It does sound like a good place to put a building, pads already there. Good luck with it.
Sent from my SM-G900V using Tapatalk