Owner: JPNDC & Traggorth Companies LLC | Location: Jamaica Plain, MA | Completion Date: Ongoing
Programs Achieved: Phius 2021, EPA Energy Star and Indoor AirPlus, DOE Zero Energy Ready Homes, Mass Save, Residential New Construction Passive House
| Square Footage | 38,009 sf |
|---|---|
| Number of Units | 45 |
| Stories | 4 |
| Certifications | Phius 2021, EPA Energy Star and Indoor AirPlus, DOE Zero Energy Ready Homes, Mass Save, Residential New Construction Passive House |
| SCI Role | Phius CPHC & Verifier, HERS Rater, Energy and Green Building Consultant |
The proposed Stonley Brookley project in Jamaica Plain, MA is a sustainably focused affordable housing development that will provide 45 new affordable apartments. A covered ground level parking garage will be provided within the building. The proposed four-story building contains approximately 37,500 square feet of conditioned space. To support the developer’s goals and State of Massachusetts green goals and climate commitments, the project is committing to a low carbon footprint and eliminating fossil fuels and being designed to Passive House (Phius) Standards, as well as Energy Star Multifamily New Construction, DOE Zero Energy Ready, and EPA Indoor AirPLUS requirements.
Technical Details
| Walls | 2” Rigid Polyiso, min R-12, 2X6 wood studs with R-21 fiberglass batt insulation. |
|---|---|
| Windows | Amberline Windows 76 MM. Triple pane U-0.14 |
| Air Barrier | Continuous fluid applied air barrier on primary sheathing layer protected by the exterior rigid insulation. |
| Roof | Flat roof with 4” min polyiso (R-24) and R-25 open cell spray foam cavity insulation. |
| Slab | R-16 slab insulation with 4” EPS. R-8 at perimeter with 2” EPS. |
| Heating/ Cooling | Ducted split air source heat pump systems per apartment, Daikin Systems with 19 SEER, 11 HSPF |
| Ventilation | One Panasonic FV ERV with 84% sensible recovery efficiency per dwelling. Zehnder ERVs with ~ 80% sensible recovery efficiency used for common areas. Zehnder units selected for summer bypass feature. |
| Hot Water | Unitary electric resistance for hot water. |
| Solar Electric | Roof-mounted Solar Photovoltaic system will produce an estimated 46,604 kWh/yr. |
| Additional Features | Structural thermal break details at columns in the garage where they connect to steel beams, as well as at balcony connections. |