New Concrete Floor?

cdh

Joined
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Having a 2 storey side extension built which involves widening the garage & kitchen. Do I need to dig up the existing concrete floor and replace it or can I just join it to the extended bit (approx 1m) of concrete floor.
Thanks
Daz
 
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joining is not a problem.

however, if the existing floor is without membrane it may pay you to modernise and bring it up to spec.

is the existing floor structurally sound?
 
Thanks!
There's a dpm, but a fair size crack has appeared across the whole width of the garage floor (4m x 2.5m), although it's not much of an inconvenience. 1/4 of the kitchen floor (3m x 2.5m) has got to be re-inforced with mesh to take a blockwork wall.

Would you just renew the necessary bits or replace the whole lot - been quoted £3000 to replace both floors if I remove the existing floors?
 
"a fair size crack"

is this an ongoing problem or is it an expansion/settlement issue?

has a car been kept in the garage?
 
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The crack is about 2mm wide, think it's from settlement and a car is kept in the garage.


We've also looked under the kitchen floor, below the dpm there seems a lot of very gritty black stone and broken bricks - always thought dpm had to be laid on soft sand, but no sign of this.

I'd like to leave the garage floor, but replace the kitchen - what do you think?

Cheers
Daz
 

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