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Old 07-31-2012, 04:54 AM   #1
Adelus
 
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Default [LTC3] Basements & Cellars

One thing I've found confusing about the construction rules in LTC3 is how to handle the construction of basements or cellars. Are we supposed to use the mining/excavation rules? What about finishing or supports?
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Old 07-31-2012, 05:33 AM   #2
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Default Re: [LTC3] Basements & Cellars

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One thing I've found confusing about the construction rules in LTC3 is how to handle the construction of basements or cellars. Are we supposed to use the mining/excavation rules? What about finishing or supports?
They are built the same way you build the building's foundation. They are not aftermarket addations
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Old 07-31-2012, 05:34 AM   #3
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Default Re: [LTC3] Basements & Cellars

In what section of Low Tech are foundations listed?
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Old 07-31-2012, 06:20 AM   #4
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Default Re: [LTC3] Basements & Cellars

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In what section of Low Tech are foundations listed?
I think what he might mean is to just use the normal construction rules - which strikes me as odd, since it is stated that it takes a lot more time to dig through certain geological layers like stone compared to soil.

I guess what I'm thinking is to mine out the basement as per the shaft rules first, and then using the available space, build a structure as normal. If you have something made out of mixed materials (Thatch/Wood building with a hard earth basement) maybe make them as two seperate-but-connected buildings?

I imagine you at least need hard earth walls, as normal soil might not be all that stable. But, since you have all the soil on hand from the dig, it should greatly reduce the time needed to finish the walls and flooring as per the construction labor cost rules.
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Old 07-31-2012, 06:45 AM   #5
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Default Re: [LTC3] Basements & Cellars

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I think what he might mean is to just use the normal construction rules - which strikes me as odd, since it is stated that it takes a lot more time to dig through certain geological layers like stone compared to soil.
Nothing odd about it. It is the same task you have to go though to make sure you have a level floor, and a to prevent the building from sinking (especial non evenly) under it's own weight. A Basement migght result normally form simply how far down you need to go to get to a soild foundation, others are from digging extra.

Yes different types of earths have different digging times. Sometimes the foundation is created with buried pylons if the solid foundation is too deep. Such as sandy ground

If the ground is too hard and under thin soil an Attic is more likely than basement. Or areas where flooding is a concern.

but digging rates would be the same as open pit mining.
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Old 07-31-2012, 07:05 AM   #6
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Default Re: [LTC3] Basements & Cellars

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One thing I've found confusing about the construction rules in LTC3 is how to handle the construction of basements or cellars. Are we supposed to use the mining/excavation rules?
That's what I'd do. If you want to have, say, a two-story building with a basement, dig a one-story-deep hole and build a three-story building there.

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I imagine you at least need hard earth walls, as normal soil might not be all that stable.
Hard earth is probably not a good material for basements. It needs to be kept quite dry, and subterranean moisture will do enormous damage to it in many climates. But ultimately that's the GM's call. What wouldn't work in the Mississippi Delta would be just fine on a hilltop in Arizona.
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Old 07-31-2012, 07:19 AM   #7
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Default Re: [LTC3] Basements & Cellars

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If you want to have, say, a two-story building with a basement, dig a one-story-deep hole and build a three-story building there.
That's my take on it as well. A basement is more than just an open pit above which you have constructed a building; it is a part of the structure itself. So excavate away...
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Old 07-31-2012, 07:52 AM   #8
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Default Re: [LTC3] Basements & Cellars

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Hard earth is probably not a good material for basements. It needs to be kept quite dry, and subterranean moisture will do enormous damage to it in many climates. But ultimately that's the GM's call. What wouldn't work in the Mississippi Delta would be just fine on a hilltop in Arizona.
Basements/Root cellars with open earth floors seem to be "traditional" in more northerly climates; modern houses pour a cement pad, but I know people in the north end of the province that still have earth basements. They're far enough south it's not permafrost either. They get a layer of new sweet earth hauled in and hammered down every year to keep the mildew down, and every decade or so you need to dig that all out and start "from scratch" or your basement will eventually turn into a crawl space.
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Old 07-31-2012, 04:40 PM   #9
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Default Re: [LTC3] Basements & Cellars

The excavation rules don't really tell how much it costs to dig a hole of such and such a volume.
Am I supposed to calculate based on price of unskilled labor man hours plus that of a skilled engineer, or is there some easier way I missed?
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Old 07-31-2012, 05:48 PM   #10
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Default Re: [LTC3] Basements & Cellars

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TAm I supposed to calculate based on price of unskilled labor man hours plus that of a skilled engineer, or is there some easier way I missed?
The rules don't tell you what needs an engineer in charge and what doesn't, but in the case of what's essentially an open pit, I'd just charge for a miner.
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