Regulations
Ventilation of residential buildings

The standard NF DTU 68.3 replaces DTU 68.1 of 1995 and DTU 68.2 of 1993; it applies from 1 ^er September 2013 for private contracts, and from 1 ^er October 2013 for public contracts.

The drafting of the norme NF DTU 68.3 has been brought into line with European standards; it concerns single-flow self-regulating systems and gas-fired CMV systems for individual and collective housing.

This standard also applies to humidity-sensitive single-flow CMV systems.

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