TRIP
REPORT
Southern Energy Homes
Duct Tester Training, Plant
Visit & Energy Star Certification
DATE
January 31, 2003
ATTENDEES
David
Beal, Neil Moyer – FSEC
Michael
Wade – Southern Energy Homes
Miscellaneous
QC and plant/section supervisors Southern
Energy Homes personal
TRIP REPORT DISTRIBUTION
LIST
George James, Keith Bennett, Chris
Early – U.S.
DOE
D. Beal, N. Moyer, S. Chandra, J. McIlvaine, D. Chasar,
R. Vieira – FSEC
Mike Mullens – UCF
Ty Batchelor, Michael Wade – Southern
Energy Homes
PURPOSE
The purpose of the visit was to provide
duct tester training to quality control
managers, plant supervisors, section
supervisors and employees. Southern Energy Homes has made
a commitment that all of their factory installed duct systems
will be sealed and tested to a 3% leakage rate or better.
The commitment of Southern Energy
Homes also has been expanded to embrace
Energy Star plant certification. Currently
one of their five plants has already been certified.
The four remaining plants in Alabama
will be certified by mid 2003.
DESCRIPTION
● January
28th
◦ Classroom
presentation and demonstration of the Minneapolis Duct
Blaster™ to supervisors and quality control managers
from each of the four Alabama plants. Instruction was
provided how to perform a simple test that would provide
a pass/fail indication and not delay the production line.
◦ Visited
plant 1 (Southern Homes)
■ Demonstrated
in plant use of duct tester. 3 floors were tested and
all were less than 3% leakage (CFM25/floor area). Mastic
used on all joints and connections.
■ Walked
the rest of the plant to look at production process.
Appears that the plant will meet Energy Star without
much more than proper paper trail. There were a few
areas though that should be addressed:
• No
insulation depth markers installed
• Roof – wall
alignments.
• Marriage
line gasket detail
● Visited
plant 4 (Southern Homes)
◦ Not
able to demonstrate duct tester – plant not in
operation during visit. Visually inspected some of the
ductwork – mastic being used on joints and connections.
◦ Walked
the rest of the plant to look at production process.
Appears that the plant will meet Energy Star without
much more than proper paper trail. There were a few areas
though that should be addressed:
■ Marriage
line gasket misalignments. Part of gasket installed on
each half and appears that when assembled there will
be large spans without a gasket.
● January
29th
◦ Visited
2 plants (Lifestyle & Energy)
■ Provided
limited assistance to supervisors in duct testing as
they performed test. Appears that they understand the
process. Both plants used mastic on joints and connections.
Both plants had less than 3% leakage.
■ Lifestyle
seals the boot to floor connection with mastic. This
should be that standard practice adapted by all plants.
Very nice application.
■ Walked
the rest of both plants to look at production process.
Appears that the Lifestyle plant will meet Energy Star
without much more than proper paper trail. Energy plant
looks good. There were a few areas though that should
be addressed:
• Corner
of the houses are sealed with expanding foam, which is
not trimmed. This prevents the exterior sheathing from
being in contact with the studs.
◦ Condensation
Potential Checklist
■ Michael
Wade has a created a condensation potential checklist
for service crews.
■ Met
with one of the service crews that were heading out to
a couple of homes with moisture problems. Discussed the
checklist and advised them on potential areas that may
need to be addressed.
◦ Wrap-Up
Meeting
■ Ty
Batchelor, Michael Wade
■ Discussion
of findings during 2-day visit
■ Discussion
of Energy Star certification
• BOPS
vs software (at this point will be using BOPS)
■ Commitment
to pursue EnergyStar certification
■ Planning
for a visit to Fort Worth TX plant late spring or early
summer 2003
• Energy
Star certification
• Duct
testing in plant
PHOTOS
|
|
Southern
Energy Homes persons using duct tester |
Prototype
register cap duct testing |
|
|
Mike
Wade testing a tight duct. |
Prototype
duct test rig. |
|
|
Plant
1 – Staples thru gasket instead flange |
Plant
1 – Expanded foam which displaces sheathing
if not trimmed |
|
|
Plant
1 – Misaligned wall & ceiling connection |
Plant
1 – Horizontal gap which is potential water
intrusion site behind vinyl siding. |
|
|
Plant
1 – Improper flashing of exterior light
fixture which is potential water intrusion
site |
Plant
1 – Improper install of marriage line gasket
at corner |
|
|
Plant
4 – Improper placement of marriage gasket – note
gasket at top of kneewall insulation. |