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Old 05-18-2013, 10:55 PM   #21
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Keep em coming!


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Old 05-18-2013, 11:48 PM   #22
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I've got plenty more coming this weekend. We just finished tamping in the base course/cement and we need to wait til tomorrow to vapor barrier and add the foam as it needs to dry out overnight. Ghettogyle Greg is busy cutting out the 2" XPS foam sections in the meantime. We plan on adding 4" of XPS for an R value of 20. This is the weak point of the setup in terms of R-value I am thinking but it's not like it will kill the project or anything like that. 20 is still respectable for a non-poured floor.

I'll upload more pics tonight but I've still got a few hours of daylight so I'll work on the shed in the meantime.


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Old 05-19-2013, 12:10 AM   #23
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Vapor barriers are pretty confusing "over the internet" because every weather region has different practices. What's the average humidity in Tuscon anyway? Probably won't even need a vapor barrier, but I'd put it over your hard pack and then go with the insulation.
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Old 05-19-2013, 01:38 AM   #24
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It's freaking dry here. We don't get more than 11" of rain of year on average and that's pretty old data. We are way behind average the last few years, something like 6" a year as of late. As for humidity, I've never seen it over 40%, unless it is raining which is very rare. It's more like 10% now but the average is pretty low. I don't have an exact number.

But here's some pics from today's progress.

Base course being tamped in:



Concreting in the perimeter edges prior to base course fill/tamp:



More of that:



XPS 250 sectioning for the floor fill:



Base course tamped in:



Making progress on shed while base course dries:



Mini Top Tier?



24000 BTU AC unit:

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Old 05-19-2013, 05:10 PM   #25
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Yet another Home Depot run:



Insulation going in:



More to follow later as it's time to get back to work.
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Old 05-19-2013, 07:31 PM   #26
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Lunch break time but here is where we are at.



We had to cut out the bunched up vapor barrier from the top of the frame but it is continuous on the bottom and sides of the insulation inserts. We will add an additional vapor barrier layer on the top before we sheet the floor. We also plan to put a layer of elastomeric white roof paint and some spray foam on the underside of the floor sheeting which should be about as good as we can do.
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Old 05-19-2013, 07:47 PM   #27
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I don't mean to be a Debbie Downer or anything, but wouldn't this design be horribly inefficient, especially at proper fermentation temperatures?

I admit, I'm not experienced with this type of thing...
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Old 05-19-2013, 08:03 PM   #28
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It's going to be a walk in cooler, not a fermentation chamber. With an R-20 floor and over R-40 on the walls and roof, I doubt it'll be all that inefficient. My limiting factor is the floor for sure but it's not to the point where it'll be a big issue IMO.

Check out some background on building your own here:

http://storeitcold.com/coolerconstruction.html
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Old 05-19-2013, 10:41 PM   #29
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Elastomeric coating on undersides of flooring:



Walk in cooler panels, I scored 10 for 100 bucks from a coworkers brother:



Running across the panels for so cheap was the motivator for getting into this project in the first place, more or less. I would have probably converted the back bedroom into a cold room if I didn't get these panels.
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Old 05-19-2013, 11:53 PM   #30
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It is so awesome to witness the progress. Keep the pictures coming! This is pure inspiration


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