ᐅ Frost-Protected Shallow Strip Foundation for Overseas Projects
Created on: 15 Mar 2020 16:05
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Boris Frank
How deep would you set a strip foundation for a small 10 x 10 meter (33 x 33 feet) house (single story made of bricks, brick roof)? The house will be built in a frost-free and dry climate on dry but solid ground. In this case, do I even need reinforcement, or is simply pouring concrete into the formwork for the strip foundation sufficient? Is it enough to install the formwork at the surface, or do I need to dig a small trench of 10 x 10 meters (33 x 33 feet), and if so, how deep should it be in a frost-free zone? For such a small footprint and only one story, does the strip foundation need to be twice as wide as the brick walls? Or can I possibly use stronger concrete without reinforcement, simply pouring it into the formwork at the surface (meaning no trench, no reinforcement, just concrete in formwork at surface level)?
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Boris Frank17 May 2020 23:18Hello, I am the one who asked the question. The location is in FUERTEVENTURA, frost-free and extremely dry. I now have time and would like to start with the foundation. However, with frost-free soil and very little rain, and only a single-story building, how deep should I set a strip foundation? Or would a relatively thin slab foundation be better? Is 30cm (12 inches) enough for a strip foundation in this case? Or even less for just the ground floor? The house itself will be very simple, standard windows, standard front door, and a simple roof as well. If the budget allows, a Mediterranean-style tiled roof (all sides sloped, very low), or if the budget is tighter, something even simpler. I own the land and want to build a simple house to partly rent out and partly live in during the winter. Thanks for your help.
Hello Boris Frank
You want to do it yourself?!
OK, then dig 40 to 50 cm (16 to 20 inches) deep. Whether you spend 4 to 5 hours more on this doesn’t really matter.
And don’t skimp on the reinforcement. It really doesn’t cost much—around 200 to 300 euros, no more.
Isn’t Fuerteventura in a tectonically active area? Without reinforcement, a magnitude 4 earthquake would destroy your foundation.
Also, I would consider a strip footing and a slab foundation. A 20 cm (8 inches) slab including footings requires about 0.25 m³ (9 cubic feet) of concrete. It’s really not that expensive.
Steven
You want to do it yourself?!
OK, then dig 40 to 50 cm (16 to 20 inches) deep. Whether you spend 4 to 5 hours more on this doesn’t really matter.
And don’t skimp on the reinforcement. It really doesn’t cost much—around 200 to 300 euros, no more.
Isn’t Fuerteventura in a tectonically active area? Without reinforcement, a magnitude 4 earthquake would destroy your foundation.
Also, I would consider a strip footing and a slab foundation. A 20 cm (8 inches) slab including footings requires about 0.25 m³ (9 cubic feet) of concrete. It’s really not that expensive.
Steven
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