Subfloor differences: slab base and dwarf walls
- Many conservatories sit on a slab poured independently of the main house foundation, which can settle or perform differently and is worth checking for level before fitting
- A damp-proof membrane check is worth confirming on a conservatory slab, particularly on older installations
- Underfloor heating is common in conservatories built without a connected radiator circuit, and the flooring should be rated accordingly



