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  1. R

    Foundations

    Thanks for that jeds - that's pretty much what the engineer said about change potential so he was looking at worst case scenario. I'm going to consult the LA building surveyor and also to see if the council still have the drawings showing the foundation depth when the house was built in 1987. I...
  2. R

    Foundations

    Update Consulted a structural engineer and given the location of the tree, it's anticipated maximum height and the clay soil his calculations indicate 2.7m deep x 600mm wide mass fill trench foundations. That seems to me to be excessively deep but I'm not qualified to question his advise...
  3. R

    Foundations

    Thanks for the input folks. The subsoil is clay. The conservatory is 4.8 x 4.0m and within permitted development and the builder has undertaken to comply with LA building control requirements. (They are well established with a good feedback and history) There is an existing 450mm dwarf...
  4. R

    Foundations

    I have obtained five quotes for a conservatory at the rear of the house. There is a mature oak tree (with a TPO) in the garden approximately 8 m from the proposed rear wall/foundations of the conservatory. Three companies have allowed for 1m foundations saying this will be adequate and two...
  5. R

    Small cable/wire size

    Thanks everyone.
  6. R

    Small cable/wire size

    I'm after some very small wire/leads to connect up to a PP3 9v battery, same size as shown here. http://www.maplin.co.uk/Module.aspx?ModuleNo=44392 I can't order any without knowing the size of wire - any advice appreciated.
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