Weatherizing is Smarter than Replacing Your Windows
We have provided examples of the benefits our customers have realized from the energy efficiency improvements we have made to their home. All of these homeowners enjoy a much more comfortable and less drafty living environment. These case studies focus on the energy savings since it is more measurable than comfort. Please call us if you have questions about the studies.
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House Type >> 100 year old, 3000s.f., two
story frame house with finished attic.
Concern >> Cold and drafty house.
Particularly upstairs bedrooms.
Energy Efficiency Improvements
Weatherization >> Caulking trim and air seal.
Insulation >>Loose fill cellulose in attic ceiling
joists. Attic floor with dense pack cellulose
insulation. Crawlspace rim joists and wall
common to basement with spray foam insulation.
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Cost
$1,031 after rebate
Energy Savings
$253 / Year
$2,530 / 10 Years
Air Leakage
48% reduction
Packback Period
4 Years
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House Type >> 1950s split level ranch
house with full basement
Concern >> Cold bedroom above garage
and high heating bills.
Energy Efficiency Improvements
Weatherization >> Air seal penetrations and
kitchen soffits.
Insulation >> Add R-7 cellulose insulation over
existing insulation. R-19 insulation to attic floor. R
-22 to sloped ceiling.
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Cost
$2,429 after rebate
Energy Savings
$606 / Year
$6,060 / 10 Years
Air Leakage
30% reduction
Packback Period
4 Years
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House Type >> 1964 split level fairly well
insulated.
Concern >> High heating bills.
Energy Efficiency Improvements
Weatherization >> Attic air sealing of electrical,
plumbing and gaps through wall plates.
Insulation >> R-30 loose fill cellulose insulation
over existing insulation. Rim joists in the base
-ment were insulated with two component spray
foam and floor penetrations were sealed.
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Cost
$2,467
Energy Savings
$500 / Year
$5,000 / 10 Years
Air Leakage
18% reduction
Packback Period
4 Years
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House Type >> 1950s two-story brick home
with full basement.
Concern >> Cold third floor and high
heating bills.
Energy Efficiency Improvements
Weatherization >> Air ceiling penetration.
Weatherstrip attic access panel and door sweeps.
Insulation >> Dense pack attic knee walls. Add
R-25 over exiting insulation in attic.
Insulate attic access panel with R-20. Spray foam insulation on basement rim joists.
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Cost
$1,073 after rebate
Energy Savings
$300 / Year
$3,000 / 10 Years
Air Leakage
25% reduction
Packback Period
3.6 Years
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House Type >> 1946 Ranch with 1996 addition
with crawl space.
Concern >>Cold first floor and kitchen.
Energy Efficiency Improvements
Weatherization >> Attic air sealing of electrical,
plumbing and gaps through wall plates.
Insulation >> Insulate and air seal crawlspace
rim joists with spray foam insulation.
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Cost
$1,700
Energy Savings
$500 / Year
$5,000 / 10 Years
Air Leakage
25% reduction
Packback Period
4 Years
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