Part E · England · Free to use

Part E sound testing calculator

How many pre-completion sound test sets a scheme needs, by group and construction type.

Approved Document E (2015 reprint)

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Dwelling type

A sub-group shares one separating wall and floor construction.

Using Robust Details instead

Part E · Result

3 sets, 18 tests

24 units in one sub-group.

Calculated result
  • Sets of tests: Calculated resultat least 1 per 10 units in the sub-group (para 1.30)3
  • Tests per set: Calculated result2 airborne wall + 2 airborne floor + 2 impact floor6
  • Individual tests: Calculated result18
  • Test the first units completed in each sub-group, and more often early on (paras 1.29, 1.31).
  • A full set for flats needs access to at least three flats (para 1.22). Different separating constructions form separate sub-groups.

Clauses this relies on

Source edition and scope

Approved Document E (2015 reprint).

This is a preliminary check of the conditions shown. Confirm the edition, project circumstances and any additional requirements with your architect or building control.

A design aid, not legal advice. Checked against the Building Regulations 2010 for England; confirm with building control.

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