Retrofitting for Resiliency
Deep Energy Retrofits provide resiliency to existing buildings
Building and Energy ConsultantsLloyd Hamilton, owner
IGSHPA Certified Geothermal Designer/InstallerDeep Energy Retrofits
Net-Zero Energy Building
Deep Energy RetrofitPurpose of Grant
• Develop a process for cost effective DEREnergy savings should make it cost neutral
• Make it durableAssembly should be expected to last 100
years• Make it duplicable
Process should be easy to learn
Deep Energy RetrofitThe team
Lloyd Hamilton, Verdae, LLCBrian Mulder, Mulder Construction
Todd Pascarella, Energy Experts Michael Drechsler, Dow Chemical
Joe Lstiburek, Building Science CorpGreg Pedrick, project manager NYSERDA
Deep Energy Retrofit
Cottekill House Circa 1945Attic poorly insulated
Rhinebeck House Circa 1790 to 1990Attic Insulated and air sealed 1990
Roxbury HouseCirca 1850
Deep Energy RetrofitRhinebeck House
Before DER work
Deep Energy RetrofitRhinebeck House
After DER work
Deep Energy RetrofitRhinebeck House
Deep Energy RetrofitRhinebeck House
* = DER WORK
Total Project Cost $109,463.45DER Portion, with Windows and Doors $61,958Extra to add DER to a Siding and Window Job $32,831.28
Task Labor Cost
Travel $4,785.00Site Prep $2,821.50Wrap Sill with EDPM $412.50DER work on walls $11,533.50*Reframe window RO $1,848.00Window and Door Bucks $3,077.25*Install windows $3,679.50*Interior trim $2697.25*Non DER work $3861.00Spray foam basement $1,315.50*Siding $7,275Masonry labor and material $7,000Total $50,306.00
Task Material CostDER work on walls $5,807.72*Window RO flashing tape $4967.54*Window Bucks $789.56*Windows $18,895.75*Window Trim $1,142.96*Doors $5,551.63*Siding $8,867.35Non DER work $10,634.94Closed Cell Spray Foam $2,500*Total $59,157.45
Deep Energy RetrofitCottekill House
Before DER work After DER work
Deep Energy RetrofitCottekill House
Deep Energy RetrofitPlan the work
• Focus on the whole building from the basement slab to the roof peak.
• Integrate the air, water, vapor and thermal control layers so they are continuous and aligned with each other.
• Pay close attention to transitions.
Deep Energy RetrofitBenefits
• Occupants can stay in home during work• Improved Comfort• Improved indoor air quality• Increased building durability• Reduced energy consumption• Increased value of home• First step to net zero energy home
Deep Energy RetrofitHow to begin?
• Go to www.deepenergyretrofit.com• Go to www.buildingscience.com• Buy “Builders Guide to Cold Climates” from
www.eeba.org Become an expertor
Hire an expert in DER to lead the team.
Deep Energy RetrofitWhen to begin?
NOW! Interest rates are lowContractors need workMaterials are going up in price
Deep Energy Retrofit• Inexpensive when done in conjunction with a
planned window and siding replacement• Can be done in stages• Do the basement and attic now using on-bill
financing and wait on the walls until you are ready to replace the windows and siding
DERFrom This
DERTo This