There are two types of concrete floor system commonly used in residential construction.
Ground floor building regulations concrete floor construction.
A typical way of constructing a solid floor would be to provide a base of hardcore with sand blinding with a layer of concrete over that.
Ground bearing and suspended.
In this article we will be focusing on the suspended concrete floor particularly beam and block floors.
Standard concrete floor slab thickness in residential construction is 4 inches.
Suspended concrete floors as part of the building regulations for concrete floor construction it is stated that structures should be built so that it is protected against the growth of intrusive plant life.
Ground bearing concrete floor slabs should be at least 100mm thick including monolithic screed where appropriate.
The building regulations backstop target u value for ground floors is 0 25w m2k which should be easily achievable with 75mm or 100mm thick rigid insulation boards laid over the surface.
All foundations to be a minimum of 1000mm below ground level exact depth to be agreed on site with building control officer to suit site conditions.
In the uk the building regulations approved documents provide guidance on some of the requirements of ground floors.
Building regulations for concrete floor construction.
It s essential that suspended concrete floors are properly insulated from blasts of cold air blowing through the subfloor void underneath your feet.
To ensure a level finish to the floor a layer of screed is added over the top of the concrete which consists of sand and cement.
To prepare the base cut the ground level to the proper depth to allow for the slab thickness.