ZNE Modular + Passive New Construction + DER

Friday, September 20, 2019
Burlington, VT

CEUs: AIA 3.0 LU/HSW; certificates of attendance provided to all attendees

$25 Members/$35 Non-Members

Attendees of this September event toured two very different projects: a newly constructed net-zero modular small house, designed to address housing needs in the wake of extreme weather events, and a 3 unit multi-family, originally built in 1870, which has recently been expanded and retrofitted to PHIUS standards.

Site 1

Representatives from Efficiency Vermont led the first portion of the event, which showcased a zero energy modular small (not tiny!) home. This particular ZEM modular is a traveling model home that demonstrates some of the latest high performance and healthy home strategies. The home is all-electric with a super-insulated air-tight envelope, battery storage, and environmentally preferable/healthy finishes. The unit moves every few weeks to a new location acting as a teaching tool and demonstrating a new approach to affordable housing that considers life-cycle costs, not just first costs. This initiative came out of Tropical Storm Irene where a disproportionate number of mobile homes were damaged.

Project Details

  • Units: 1
  • Square footage: 560
  • Type of construction: New
  • Super insulated envelope (R40/43/60/5)
  • Cold climate heat-pump
  • 4.5kW PV solar array
  • Blower door test yielding<1.0ACH50


Site 2Rendering of second project

This home is an urban infill project that features a 3 story addition to a pre-1877 duplex. The addition includes new space for the existing units and a third unit, which is the first Certified Passive House in Burlington,  and is modeled to be Net Zero Energy. The addition features foam-free construction, showcasing carbon-storing materials such as 6 1/4” thick fiberboard continuous insulation (Gutex), dense pack cellulose in the stud cavities and roof, and foam-glass (Glavel) below the slab. Other features include triple-pane tilt-turn windows and full house balanced ventilation with heat recovery (Zender).

Project Details

  • Units: 3
  • Square Footage: 4,000
  • Type of construction: Mixed new + retrofit
  • Embodied carbon calculations done to inform materials choices
  • Limestrong lime plaster was used for accent walls
  • Known and anticipated ratings include: PHIUS, HERS, DOE's ZERH (Zero Energy Ready Home), Indoor airPLUS, USEPA WaterSense, Efficiency Vermont High Performance Buildings, Energy Star


Tentative Schedule

12:30 PM

Doors open, registration, networking and coffee

1:00 PM

Welcome by NESEA

1:05 PM

Opening presentation, featuring project overviews of both sites

2:15 PM

Tour of first site begins; attendees rotate through content-specific stations

3:00 PM

Group travels to second project site

3:15 PM

Tour of second site begins; attendees rotate through content-specific stations

4:15 PM

Group Reconvenes back at initial meeting point

4:20 PM

Reception with light refreshments

4:30 PM

Q&A Panel with members of project teams

5:00 PM

Event Concludes

If you have questions about this event, you can contact Florence at fmacgregor@nesea.org or 413-774-6051 x10.



Thank You to the 2019 BuildingEnergy Pro Tour Series Sponsors

Presenting Sponsor:


Thank you to our Event Gold Sponsor

Thanks to our event sponsors