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Will
I need Local Authority Approval for my base?
If
the building is over 30 square metres in enclosed floor
area, then you will need Building Regulation Approval,
and you will need to have the base design inspected and
approved by your local Building Control department. Your
local agent has a table of models with the enclosed floor
area already calculated, and will be able to advise on
the size of your chosen model.
In any event, the base design should be to suit local
soil conditions, the position of the base, trees etc.
There are other conditions that may apply, dependant on
locality. For instance, you may require Building Regulation
Approval if the proposed building is within 1 metre of
a boundary. You should check with your Local Authority
if in doubt. |
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How
thick should my concrete base be?
With normal soil conditions, 4" (100mm) concrete over
4" (100mm) clean well compacted hardcore blinded with
2" (50mm) well compacted sand or ash should be sufficient.
The perimeter should be thickened to a minimum 10" (250mm)
by 10" (250mm), below ground level. To increase the strength
of the base, steel mesh (A142 - 6mm) can be added, and
glass reinforced concrete may used.
Your local agent can normally provide a base laying service,
or you can consult a local builder. In any event, the
base design should be to suit local conditions. |
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