Air tightness blower door to detect draught

Air tightness blower door to detect draught

Air tightness blower door to detect draught

I don’t need a test for building regs but to prove the extent of the cold air draught entering my home and to pinpoint the location of the draughts.

What kind of certification would a blower test operative hold to give their findings and report credibility ?

by Wyleecoyote

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