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Garden build\Office - strip foundations or raft?

Discussion in 'Building' started by shabbaranks, 29 Mar 2016.

  1. shabbaranks

    shabbaranks

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    Hi guys,

    We're looking at putting in a garden salon 6 meters by 4.5 in the garden and I've had multiple differences of opinion so I thought Id ask here.

    Obviously with it being a salon and pipe work could change we need to bear in mind what the best option is. I'm of an opinion that a solid raft base is the way to go but I like the flexibility of a strip foundation base. Can anyone enlighten me on what they would use in this situation?

    Thanks :O)
     
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  3. KenGMac

    KenGMac

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    shabbaranks, Hi

    One thing to consider is the insulation of the floor? easier to get on a raft?

    Ken
     
  4. noseall

    noseall

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    There is nothing easy about a raft foundation, insulation or otherwise. Do people discussing this actually know what a raft foundation is and what is involved?

    Trench/strip foundations are much simpler.
     
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  5. shabbaranks

    shabbaranks

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    Strip is kind of like a floating floor isn't it? What would you say are the main pro's of a strip foundation? Are they quite springy\spongey?
     
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  7. TonyW2

    TonyW2

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    Hope not.
     
  8. Tipper

    Tipper

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    Rather depends on the ground conditions and closeness of trees, etc.
     
  9. r896neo

    r896neo

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    There is no floating element in a strip foundation?? I assume you are thinking of a suspended timber floor? This would be very unnecessary in a building like this.

    A normal strip footing would be trenches filled with concrete ( or 9'' concrete in the bottom and footings brought up in blocks) The walls are built up and a dpc inserted.

    The inside section is then filled with a solid concrete slab (with hardcore dpm insulation etc)

    A raft is an engineered solution for dealing with problem ground or other issues, it's more difficult to detail properly than a strip footing building, the wall floor junction in particular can be problematic.
     
  10. theprinceofdarkness

    theprinceofdarkness

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    What is your "salon" made from?, is it wooden or is it a brick building? Look at its construction and see how the weight on the floor is distributed onto joists and bearers. At work we had a 30' square porta cabin office that stood on concrete blocks at huge centres ( 8'?). So individual "pillars" might do but they have to sit down in the subsoil.
    Frank
     
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