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Point of Reference
10 dBA is the sound level of normal human breathing. To put it into perspective, thunder is a whopping 120 dBA...more

Air Testing & Leakage
Air Pressure Testing is not just for new-builds, it can be used to find leakage areas in existing buildings, improve the air tightness and improve/stop drafts..more
Part L1A
Conservation of fuel and power IN NEW DWELLINGS

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SAP Extension Assessments can also be known as:
SAP Extension Calculations, SAP Extension Assessment,
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In Area I
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