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[05omegav6]

TB

For us newbies what actually happened to your garage?

Just think BANG   

Only bigger and more shouty

[Andy B]

....
Only bigger and more shouty

Same as Jamie then ..........     

[05omegav6]

Like this...

BANG

[TheBoy]

Block and beam floor in a garage?

Yup.  I always wondered why both the garage and house were on a suspended floor, and its only when going through planning for the garage rebuild that its due to "shrinking clay", whatever the hell that is. Google turns up a load of conflicting info as to what it is.

Whatever, planning would not allow a solid floor for the garage.

[TheBoy]

Blocks just arrived, just as I saw the builders drive the other way

[aaronjb]

It's clay. That shrinks. Duh 

Probably in the cold.. I think we can all relate.

[05omegav6]

Blocks just arrived, just as I saw the builders drive the other way

Thec prospect of unloading them does that to people

[TheBoy]

TB

For us newbies what actually happened to your garage?

One morning last summer, it instantaneously went from:


to:



Made a mess of the car as well

[tunnie]

That second photo is ripe for some captions, from two firemen 

[Marks DTM Calib]

Block and beam floor in a garage?

Yup.  I always wondered why both the garage and house were on a suspended floor, and its only when going through planning for the garage rebuild that its due to "shrinking clay", whatever the hell that is. Google turns up a load of conflicting info as to what it is.

Whatever, planning would not allow a solid floor for the garage.

Very odd, for a few reasons.

1) Planning dont have a clue about anything structural, that is a building control job (guessing a full plans submission so its pre-approved and the builder can ignore it as they tend to  ).

2) A properly constructed concrete floor bears on both the ground underneath and the foundations.

It quite usual to have a house with BnB build but a garage has much greater point loads, hence my surprise (
 checking the suppliers sites it seems to be possible although its recommended to use a stronger beam at circa 170mm wide and it must have a steel reinforced screed on top......so get your tape measure out!)

[chrisgixer]

I presume there's a risk the clay underneath can dry out, and hence retract. There by leaving a normal concrete floor un supported and at risk from cracking...?

[Marks DTM Calib]

I presume there's a risk the clay underneath can dry out, and hence retract. There by leaving a normal concrete floor un supported and at risk from cracking...?

If the floor was reliant on the clay for support........as said, a reinforced slab which extends to the poured foundations would not be reliant on the clay underneath.....

[TheBoy]

1) Planning dont have a clue about anything structural, that is a building control job (guessing a full plans submission so its pre-approved and the builder can ignore it as they tend to  ).

I know planning made some insistence on it, possibly because the architect said it needed it. The builders have had the building inspectors out to check if its necessary, and apparently it is.

[TheBoy]

so get your tape measure out!)

Guess where I kept them all...

[Marks DTM Calib]

As said, planning are not able to enforce such matters (they may, and its a very long shot, offer a condition or advisory but its VERY rare) and wont even review such detail as the document submission requirement for planning wont have this level of detail on it

For them its all appearance, sustainability, impact,  yada yada yada

Building control however can insist on it (even if its not best solution) and they will review the approve the strutural build etc in line with the building regs.