saving energy and money with insulation project at federated church in morris, mn
DESCRIPTION
The Federated Church in Morris, MN was known for their winter icicle show, due to a lack of insulation that allowed heat to be lost through the roof. This presentation takes you step by step through their efforts to tighten up the building for energy and cost savings.TRANSCRIPT
This “leaky”
old church.
Federated Insulation Project
Beautiful natural wood ceiling in the sanctuary
Three views of
the Federated
Church icicle
show!
Shingle
damage from
heat loss.
Old shingles
showing
signs of heat
loss.
External view
Internal view
Bare sheetrock
Open concrete block wall
Some fiberglass batting insulation
No insulation continuity
Mold Under the Shingles.
Out of sight, out of mind.
Back Side of Sanctuary from attic
No Insulation on original assembly!
Condensation Staining on Roof deck From
Heat Loss, Lack of Ventilation, near sanctuary.
More Moisture/Mold on Roof Sheathing, near sanctuary.
Only five vents installed during previous construction
Interior water damage and air leaks
Our Goal! •Cut Heating and cooling Expenses by 50%
•Protect the Structure from further damage
resulting from heat loss due to:
1.Lack of ventilation
2.Poorly or non-insulated thermal boundaries.
Why This Happened? •Poor design for this climate Zone
•Previous contractors lacked Building Science
background to solve these complex and
layered problems.
•Complex Thermal Boundary.
•Hidden Thermal Boundaries.
Shingle removal and replacement
blown in bat insulation
External blown in bat insulation
Interior foam insulation
Retro foam installation in concrete block wall
Closed cell
polyurethane foam
Open cell tri-
polymer resin
plus foam agent
Used over the sanctuary
on the outside of the
original roof
Used to fill the hollow
concrete block walls along
the west side of the church
2 x 6 stud installation for external foam
Exterior foam insulation – close up
Exterior foam insulation
Exterior foam installation
Roof sheeting over foam
70 new roof vents!
5 ineffective vents before
Total 162 vents after
70 roof vents
60 soffit vents
20 gable vents
12 window vents
Total 162 vents installed
Energy audit “leak
tests” before and after
insulation, ventilation,
and sealing showed a
58% reduction, a big
contributor to reducing
energy loss.
42 years of energy loss and poor
ventilation corrected by creatively
retrofitting insulation saving about
$5000 per year in energy costs!
