What do building regulations cover?
The requirements with which building work should comply are contained in Schedule 1 to the Building Regulations and are grouped under the fourteen 'parts':
Part A - Structure,
Part B - Fire safety,
Part C - Site preparation and resistance to moisture,
Part D - Toxic substances,
Part E - Resistance to the passage of sound,
Part F – Ventilation,
Part G – Hygiene,
Part H - Drainage and waste disposal
Part J - Combustion appliances and fuel storage systems,
Part K - Protection from falling, collision and impact
Part L - Conservation of fuel and power
Part M - Access to and use of buildings,
Part N - Glazing - safety in relation to impact, opening and cleaning
Part P - Electrical safety.
What is exempt from building regulations?
The extension of a building by the addition at ground level of a conservatory, porch, covered yard or covered way or a carport open on at least two sides.
Where the floor area does not exceed 30m², provided that in the case of a conservatory or porch which is wholly or partly glazed, the glazing satisfies the requirement of Building Regulation Part N Safety Glazing. An exempt conservatory must be separated from the remainder of the house by a wall, door or window.
A detached single storey building, having a floor area which does not exceed 30m², which contains no sleeping accommodation and is a building at no point of which is less than one metre from the boundary of its curtilage or which is constructed substantially of non-combustible material.
These planning exemptions cover:
Detached garages having less than 30 square metres in floor area and constructed of non-combustible materials.
Detached summer house having less than 30 square metres in floor area and containing no sleeping accommodation and constructed of non-combustible materials.
Timber sheds are also exempt providing they are less than 30 square metres in floor area and positioned a minimum of one metre from the boundary of its curtilage.
A SAP rating is the calculation that is required in order to produce a Predicted Energy Assessment and an On Construction Energy Performance Certificate.
Building Regulations require that a SAP calculation and a Predicted EPC is submitted for new dwellings prior to the commencement of work.
A SAP calculation indicates a score from 1 to 100+ for the annual energy cost based on:
- The elements of structure
- The heating and hot water system
- The internal lighting
- The renewable technologies used in the home.
The higher the score the lower the running costs, with 100 representing zero energy cost. Dwellings with a rating in excess of 100 are net exporters of energy.