Sub floor on extension - concrete or floorboards?

[theoldun]

Indy,
Air bricks must be on opposing walls with cross flow ventilation.
Sleeper walls to be honeycomb.
Air brick 450mm in from each end and 2000 centres.
Regards oldun

 

[indus]

Indy,
Air bricks must be on opposing walls with cross flow ventilation.
Sleeper walls to be honeycomb.
Air brick 450mm in from each end and 2000 centres.
Regards oldun

Thanks Oldun.

The kitchen now only has two walls ie the left hand and right hand wall. The rear wall no longer exists as the extension has replaced it.

So the air bricks are in these opposing left and right hand walls. Their exact position is however they decided to do them in 1902 when the house was built!

Should this suffice?

 

[theoldun]

Indy,
If you have two air bricks each side, yes .
If only one each side, then suggest when you have some more work done cut another one in each side.
Regards oldun

 

[indus]

Thanks Oldun.

It is indeed only one brick each side. I'll have extra installed when I have my upcoming extension done.

I bet you're looking forward to all my questions when my new extension actually starts Oldun