Barking Mat
Cuddler of hedgehogs.
- Messages
- 13,022
- Location
- France, Brittany.
Not missed, but something to have a good look at: make sure there is absolutely no way whatsoever the concrete can get under the polystyrene or it will float*. So make sure the joins between the sheets are tight and cannot move laterally or longitudinally and separate. Make sure that there is no way that over-enthusiastic splashing of the grey stuff around the perimeter can get behind the insulation. Go easy with the poker/vibrator if you are using one.
* Look how well it floats on water, with a density of 1.0, so how much better will it float on something with a density of roughly 2.5?
Going to fill the edges. Prior to pour.
Going to space the wire grill with paving slabs, to reduce slightly the amount of pour.
Good point though, thanks !