L1B SAP Calculations & Sound Testing – Kent

THE BRIEF

  • To pass this Airborne test, you must score 45db or higher
  • Airborne tests measure the difference in sound levels between the receiver room and neighbouring walls or floors
  • If the sound output in the receiver room is 100db and the sound leakage being passed through into the neighbouring room is 40db, then the result would be 60 and therefore would be a pass
  • To pass this Impact tests, you must score 62db or lower
  • Impact tests measure how effectively the Sound Insulation between floors cancels out sound. If there is less than 62 decibels of sound leaking through into below floors then these tests would be a pass
L1B SAP Calculations & Sound Testing - Kent

THE PROCESS

  • After reviewing drawings, on site testing was ready to be completed. All calibrated equipment was setup in accordance to our strict procedures to ensure the most accurate result possible

THE RESULTs

  • SOUND TESTING RESULTS

Airborne Floor Target 

≥ 45

Shop - Flat 2 Bedroom

≥ 45

Shop - Flat 2 Living Room/Kitchen

Impact Floor Target 

≤ 62

Flat 2 Bedroom - Shop

≤ 62

Flat 2 Living Room/Kitchen - Flat 2 Living Room/Kitchen

Airborne Wall Target 

≥ 45

Flat 2 Living Room/Kitchen - Flat 1 Bedroom

≥ 45

Flat 1 Living Room/Kitchen - Flat 2 Bedroom

Airborne Floor Result

48

Shop - Flat 2 Bedroom

48

Shop - Flat 2 Living Room/Kitchen

Impact Floor Result

44

Flat 2 Bedroom - Shop

39

Flat 2 Living Room/Kitchen - Flat 2 Living Room/Kitchen

Airborne Wall Result

53

Flat 2 Living Room/Kitchen - Flat 1 Bedroom

49

Flat 1 Living Room/Kitchen - Flat 2 Bedroom


PASS


PASS


PASS


PASS


PASS


PASS

  • SAP RESULTS

≤ 75.58

Flat 121a - Notional Dwelling Emission Rate (DER)

≤ 116.20

Flat 121a - Notional Dwelling Fabric Energy Efficiency (DFEE)

≤ 61.94

Flat 121b - Notional Dwelling Emission Rate (DER)

≤ 92.90

Flat 121b - Notional Dwelling Fabric Energy Efficiency (DFEE)

62.95

Flat 121a - Proposed Dwelling Emission Rate (DER)

101.20

Flat 121a - Proposed Dwelling Fabric Energy Efficiency (DFEE)

57.26

Flat 121b - Proposed Dwelling Emission Rate (DER)

91.00

Flat 121b - Proposed Dwelling Fabric Energy Efficiency (DFEE)


PASS


PASS


PASS


PASS

  • Compliant
  • The building's Sound Tests, particularly the Impact Floor and Airborne Wall Tests achieved extremely good scores which shows a very good level of Sound Insulation 
  • We achieved a Water Efficiency Rate of 109.65 Litres per person per day, the Target being ≤ 110L
  • Our Combined Compliance Package offers excellent value   

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