Contractors can only undertake the relevant classes or items of minor works for which they have been registered.
Thickening of floor slabs
Laying solid screeding
Class I
Laying solid screeding
- Domestic flat/Non-domestic flat
- Thickness of the screeding
> 25mm
Class III
Laying solid screeding
- Domestic flat
- Density of the screeding
≤ 1200kg per m3 - Thickness of the screeding
- If density of the screeding ≤ 650kg per m3
25mm - 75mm - If density of the screeding > 650kg per m3
25mm - 45mm
- If density of the screeding ≤ 650kg per m3
- Thickness of the floor slabs
≥ 125mm