ROXBURY E+

The homes are certified LEED for Homes Platinum and have achieved HERS ratings between -6 and -9 (across all four homes). The building envelopes are designed to be thermally robust: double-stud wall construction, high insulation levels, prevention of air infiltration at seams and transitions, and the installation of triple-glazed high performance windows all help to reduce heating and cooling energy use.

Efficient framing strategies helped to reduce construction waste during the build process.
Low flow toilets, faucets and shower heads and drought tolerant landscaping minimize overall water consumption. Permeable paving and site infiltration strategies also help to put less strain on local municipal water systems.

RENEWABLES
The project reduces its environmental impact through a combination of active and passive energy strategies. The design incorporates on-site solar photovoltaic electricity production, natural day lighting, super insulated building envelope, passive ventilation, and site water management tactics.
Each home is equipped with 38 Solar PV panels and a solar thermal panel to provide energy and hot water for the house. The energy output is targeted to exceed the demands of the occupants, with surplus to be sold back to the grid.

FINISHES
The project utilizes high efficiency HRVs (Heat Recovery Ventilation) for air exchange and mini split systems to provide heating and cooling. Hard surface flooring, cleanable walk-off mats and areas to promote shoe removal beside the entryway all seek to create an environment with fewer respiratory irritants than a typical home. Interior finishes include low VOC paints and FSC certified cabinetry. All appliances are Energy Star rated.

SUSTAINABLE NEIGHBORHOOD
A comprehensive public awareness program through website, signage, presentation and tours has educated the neighborhood at large on sustainable green building strategies. We hope the project will be a catalyst in helping to educate a new generation of local green collar workers and stimulate the local economy and job opportunities.
One of the four 2,000 (+/-) SF townhomes in the project is being offered at 80% AMI, while three of the townhomes will be market rate. Our goal is to support the mixed-income nature of the neighborhood while providing housing equity for local residents.

Materials used:
• Zip Sheathing
• Fiber Cement Siding
• Bamboo Kitchen Cabinets
• Hardwood Oak Flooring
• Recycled Cellulose Insulation Material
• FSC certified wood products
• Greenguard Composite Quartz Countertops
• Drought Tolerant and Native New England Landscaping
• Drought Tolerant Fescue Lawn
• Light Reflectance Permeable Pavers
• Low VOC Paints and Adhesives

Innovative building components:
• Air Tight Building Envelope (Air infiltration Rate at 0.57 at ACH50)
• Triple Glazed Windows (U-0.105)
• Super Insulated High Performance Walls, Floors and Ceilings
(R-41 Walls, R-69 Ceilings and R-52 Floors)
• Rainscreen Siding System
• High Efficiency Heat Recovery Ventilator (HRV)
• High Efficiency Ductless Mini Splits for Heating and Cooling
• High Efficiency Plumbing Fixtures
• low flow toilets, showerheads and faucets
• Water Efficient Appliances (Dishwasher, Clothes Washer)
• Energy Monitoring System