Dug footing for house extension 900x600 what point do i put concrete?
Answers: Hi - Your plans should state MINIMUM depth of concrete required. Assuming you are in the UK, what does the building inspector say aloud. It's normal, or definitely used to be, for a 'site visit' from a building inspector from the planning department to inspect an excavation prior to pouring concrete. This would be to ensure that you have dug down to a suitable depth to suit the existing ground conditions/level of existing drains.
Before pouring the concrete, take some wooden pegs, typically 2"x2", and knock them into the ground, at the bottom of the trench, about 4' apart. The distance from the trench bottom to the top of the peg will be the concreteness of concrete you intend to use. Knock the first peg in to allow the required depth of concrete. Work your passageway along the trench and, using a level, engineer sure all of the tops of the peg are level. The top of these peg will be the finished concrete level. This will brand name it easier to level the concrete as it is poured and grant you a good height base to build bad.
You SHOULD start brick/blockwork below finished ground level.
If you are using a facade brick up to damp horizontal it is advisable to cover it with polythene back proceeding with the prevalent blockwork. This will keep the bricks verbs. The polythene is removed at the end of the commission.
On the outside of the extension you should allow a minimum 6" between the FINAL finished ground level and the dampcourse.
Depends how impossible you want to cover up someone?
As long as your pouring your footing I'd pour it up almost to floor level. You'll enjoy to take into vindication the top plate as well as floor joices on the incorporation. The height of these if the concrete is up to the hoary floor will put you well over the outmoded floor level. So digit in you top plate and floor joices subtract this from the footing and next you should have even floor transition from investigational to old.
when you pour concrete, ive not see it to floor level. typically there are courses of blue brick / engineering bricks or blocks underground.
Have drain tiles installed on limits prior to pouring. The rough in plumbing have to be trenched for under vault floor. Remember, after pipes run for main even (this will be in your basement's ceiling; allow space for ceiling placement also. Will you still enjoy head room. Installing any ceiling or non-flush ceiling lights?
Just remembers for 'plan ahead'. We be glad we did.
900/600 ft?? that's 54.000 sf wow In my opinion you should be asking the building inspector not me!!!!!
Read the answer from BT it is a worthy answer.best of luck
The minimum depth of concrete should be 225 mm. But all will depend on indisputable conditions ie, type of soil or any trees or their roots in the neighbourhood. You should contact your local building control officer to visit when you hold excavated. You may find that you can go 225mm for most of it and enjoy to dig a deeper bit if the ground is unstable.
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