Sound Flanking Pathways Identified During Sound Testing

Since Building Regulations Part E was introduced, we have literally undertaken thousands of sound tests throughout London and the South East; and as such we have built up considerable knowledge of typical sound flanking pathways.

To help consultants and contractors we have comprised a list of the main Sound Flanking Pathways identified during Sound Testing.

  • Dividing Floor Partitions – Through Floor and Floor Joist Space (if insulation has not been installed or direct fixing to joists without a drop ceiling below the partition under test)
  • Dividing Ceiling Partitions – Above and Through the Ceiling Space (where an adequate acoustic break has not been carried on through the ceiling void)
  • Shared Structural Building Components – Floor Boards, Floor Joists, Continuous Drywall Partitions, Continuous
  • Concrete Floors, and Cement Block Walls.
  • Through Structural Steel (structural steel beams are often a major cause of noise transmission as plasterboard is often fixed directly to the steel without sound breaks)
  • Plumbing Chases – Junctures between the Walls & Floor Slab Above or at the Exterior Wall Juncture (this should be filed with mortar etc. to add mass to this weakened areas.
  • Through Windows (if they are no double glazed or have secondary glazing as a minimum)
  • Fixtures & Outlets – Light Switches, Telephone Outlets, and Recessed Lighting Fixtures (if penetrations have been cut back to back with the opposite dwelling under test)
  • Structural Joints – Perimeter Joints at Wall & Floor, Through Wall & Ceiling Junctures (these should be filled with acoustic mastic.
  • Around the End of the Partition Through the Adjacent Wall (acoustic mastic should be used to seal this junction)

APT Sound Testing offer a ‘one stop’ design package for all types of acoustic design and sound testing in London, whether it’s accomplished during initial construction or during a refurbishment/renovation project.

We provide full UKAS accredited air and sound testing in London, so our clients can be sure that all testing is completed to a strict ISO quality controlled standard. Our engineers use the latest UKAS Calibrated Class 1 Acoustic Testing Equipment.