Technical Booklet F1 Conservation of Fuel and Power in Dwellings·Page 19·1.7, 1.8
Technical risks and interrelated requirements
Building work must satisfy all Building Regulations requirements, with particular attention to how Parts C, G, K and L interact with Part F energy efficiency measures, as incorrect application can cause rain penetration or interstitial condensation.
Building work should satisfy all of the requirements of the Building Regulations, however the requirements of Part C (Site preparation and resistance to contaminants and moisture), Part G (Resistance to the passage of sound), Part K (Ventilation) and Part L (Combustion appliances and fuel storage systems) are particularly interrelated in the whole building approach adopted by Part F.
The incorrect application of energy efficiency measures can cause technical problems such as an increased risk of rain penetration or interstitial condensation. Measures to avoid the risks that might arise are given in BRE Report BR 262: Thermal insulation: avoiding risks.
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