Footings
Building Regulation Base Detail
Standard Conservatory Base Detail
Sub-base
Excavation of 250mm, this being below the frost heave level.
Hardcore
100mm of compact limestone, covered with blinding of sand.
Under floor Insulation
50mm deep layer of insulated blocks.
Damp-proof membrane
1000 grade polythene damp proof membrane.
Internal floor
Concrete floor no thinner than 100mm.
Insulation
All walls have insulated cavity using jablite polystyrene 1200mm x 450mm sheets.
Internal wall
Brickwork feature or plaster.
External wall
Brickwork to suit existing house (If exact match is not possible alternative samples will be made available).
