Blower Door Test at the Dixon Household

1
Blower Door Test at the Dixon Household Mission
To find and repair air infiltrations and
exfiltrations problems.
.
Procedure 1.) Pressurize the house 2.) Use
the pressure gauge to find pressure differences
If the change in pressure was large in
certain places, it was a red flag to an
infiltration problem 3.) Fix apparent
problems 4.) Document the change in
pressurization due to the repairs made
.
.
PROBLEMS gtDisconnected Ducts
gtLack of insulation gtCrimped Ducts

gtOpen Chimneys gtFurnace efficiency

2
Blower Door Test Problems/Solutions
.
PROBLEMS gtDisconnected Ducts
gtLack of insulation gtCrimped Ducts

gtOpen Chimneys gtFurnace efficiency

Space between duct and the connector
Heat loss seen on shingles
.

Solutions gtWeather-stripping
gtRe-Insulate Ducts gtSeal chimneys

Disconnected duct
Fixing detached duct
3
Blower Door Test Results
.
Pressure differences at different parts of the
house When there is a large pressure difference
in certain areas of the house, it is then clear
that the house is losing heat in one way or
another
Progress in Sealing the House As the team
started fixing the house, it became more sealed
and better at conserving energy
.
Before and After Pressure Differences This shows
the progress the team made in different areas of
the house