Leaky 1900's Farmhouse turned into a cozy, comfortable, energy efficient home through National Grid's Deep Energy Retrofit Pilot Program. Currently on track to meet the Thousand Home Challenge.
75% to 99%
75% to 99%
of space heating
- Ruth von Goeler and Kelly Slough
- Single-Family Residence
- 24 Hampden St., Northampton, MA 01060
- 2,201 sq ft
- Energy need met:
- 75% to 99% of electricity
- 75% to 99% of space heating
- Deep energy retrofit
- Event Participation:
- NESEA Green Buildings Open House 2012 Host
- NESEA Green Buildings Open House 2013 Host
- Energy Efficiency
- January 2012
- For space heating
- Annual Revenue:
Professionals & Suppliers
- Black Diamond Builders-Matt Dery
- Cellu-Spray - Jonathan Tauer
- Energia LLC -Tom Rossmassler
- First Prize Foam Insulators- Mike Lebreque
- Wilson Services -- Gary Wilson
- Coldham and Hartman -- Andrew Webster
- FCM Smartbuild -- Steve Ferrari
- Energy Auditors:
- CET -- Mark Newey
What You Need to Know
Deep Energy Retrofit included the following: • Roof: R-60+ In the new addition – 11.25” rafters with dense-pack cellulose inside and 4” foil-faced polyiso outboard of the sheathing. In the main house – 7” of dense-pack cellulose in the existing rafters and 4” rigid foam board. • Walls: R-40+ in the new portion – 2x6 walls blown with cellulose, and 4” foam board on the exterior. • Existing Brick Foundation: R-20+ 4” spray-applied closed cell foam with protective barrier applied to the exterior of the foundation • Windows: R-5 Triple-glazed casement windows with low-e coating by Accurate Dorwin. • Doors: R-5 Therma-Tru fiberglass exterior doors. • Air Sealing Final Test: .083cfm/SF @ 50 PA • Heating and Water heating: Retain existing Veissmann hot water boiler. • Ventilation: Venmar EKO 1.5 ERV for heat and moisture recovery. Very low energy consumption: >2cfm/Watt • 3.8 kW PV System
Air tight house removes the need for air conditioning in the summer by simply using nighttime ventilation.
Efficiency or Sustainability Improvements:
Removed a dormer to optimize space for new 3.6 kW grid-tied PVarray. A new roof replaced a leaky slate + cedar shingle roof.
For us the priority was to use less fossil fuels and have a smaller carbon footprint long term.
Get a whole house energy plan before embarking on improvements. When we needed to replace the burner 6 years ago, we could have saved considerable money by focusing on the envelope first, which would have allowed for a much smaller HVAC system.
Experience with Installer:
Steve Ferrari is an expert in energy efficient building and was excellent on the details, so important to get right. He's constantly educating himself on new technologies and is in the front of the field when it comes to deep energy retrofits.
Open House Info:
Open House Hours: 9:00 am - 12:00 pm Address: 24 Hampden St (off South Street) in Northampton.
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