Hi All,
I previously removed an exterior brick wall in order to extend lounge. Where my new slab extension meets the old bungalow cavity wall, I need to decide what to do with the cavity that goes down to a depth of approx. 800mm to the footings before I lay down my new floor slab. The old bungalow floor has been dug up in order to install 300mm EPS with UFH in 100mm meshed concrete.
The attached pic shows the new extension to the right of the cavity with sand blinded hardcore floor of bungalow to the left. My options as I see it:
1) Leave cavity as it is and just cover the cavity with 300mm EPS.
2) Fill cavity (with gravel / concrete)
3) Fill with EPS beads
I have plenty of beads at my disposal, so I am tempted to go with option 3.
TIA!
OB