Base Construction


Building Regulation Base Detail

Standard Conservatory Base Detail


Excavation of 250mm, this being below the frost heave level.



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.



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).