Footings for house

Villain

Hi I'm hoping to dig my foundations this week and my site slopes down from the road edge so I want to bring up my house to level with the road, however I have been told that there is new regulations for footings and that once you go over 4 rows you have to do a suspended floor and change from the normal 1 on its edge 2 on the flat and stagger each row.

Doesn anyone know?

muffler

That rule has been there for a long time. Basically you cant fill below the sub floor by more than 900 mm. For normal construction this is not usually a problem but if you intend raising your finished floor level to a point that it would be more than 1 metre above ground level then you will have to use a suspended floor.

The rule is there to prevent subsidence of the floors and undue pressure on the footings.

If you are going down the self building route then I would highly recommend you get a copy of the Homebond house building manual. It will cost about €50 but worth every penny (or cent ).

Given the time of year maybe someone will buy it as a present for you or better again you could buy it as a present for someone else and then borrow it

bbam

The homebond book is more than worth its money... If you look in it you will be able to go for a "cast in place" suspended floor rather than pre-cast if you so wish..
Cheers
bam

Villain

Cheers lads I met with a mat that is engineer and he said the said, its going to be a suspended floor. The levls were disappointing 1.5 m below road in the lowest point which will be the top of my foundations so looks like 7 rows of blocks in my footings, I think my block layer will need to change his €1 a block for the footings!

ircoha

The homebond book also shows the special detailing required for radon where a suspended concrete floor is used