Articles tagged “dnt,w”

Approved Document E Acoustics — What Part E Actually Requires for New Buildings

Approved Document E specifies airborne sound insulation (DnT,w + Ctr ≥ 45 dB) and impact sound (L'nT,w ≤ 62 dB) for separating walls and floors in new dwellings. This guide covers every requirement, Robust Standard Details, pre-completion testing, and a worked example for a terraced house party wall.