I live in a single-story house from 1968 with a crawl space. Regarding foundation and joists, it says this about the main building: Text explaining concrete foundation structure with prefabricated insulated beam slabs on concrete pilasters for a crawl space in a 1968 house.
Is it a good crawl space? I have read a lot of negative things about crawl spaces, but is it better with a concrete crawl space? What should one consider when having this type of crawl space?
 
I would probably say that based on that description, it's not possible to determine if it's a good or bad crawl space :)
Structurally, it's certainly no problem.
Whether there is a risk of moisture depends on other factors.
Modern crawl spaces are always insulated externally and well-drained, which wasn't always the case 30 years ago.
Under the house, there should be a deep layer of gravel and then plastic that slopes from the center out towards the foundation - also not common before - but it is usually possible to check by crawling under the house and inspecting...

You can also do a moisture measurement in addition to a visual inspection.

/K
 
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