sustainability

12 Pros Share their Favorite Sustainable Design Features ON HOUZZ

Houzz spoke with 12 pros about which sustainable features homeowners should consider to cut energy use and reduce their carbon footprint. Architects, builders, interior designers and landscape designers were interviewed and also discussed the sustainability solutions they’re most excited about.

ZED’s Jordan Goldman, provided the following thoughts:

Sustainable features ZED uses. “Our main focus for sustainability is reducing the carbon footprint of our buildings. [That applies to] both operational carbon — due to the energy demand — and the embodied carbon — due to the materials involved in the project’s construction,” Jordan Goldman says.

“To reduce operational carbon, we emphasize an exceptionally well-insulated envelope, efficient systems and renewable energy.” Goldman says. “To reduce embodied carbon, we try to avoid or minimize the use of materials like concrete, steel and foam, since they typically have an outsized contribution to the overall embodied carbon. To reduce both operational and embodied carbon, we avoid designing oversized houses and buildings.”

Sustainable solutions Jordan’s excited about. “Over the last couple of years, we’ve shifted from using rigid foam [insulation] to products like wood fiberboard — made from compressed sawdust, diverting the material from the waste stream — and rigid cork — made from harvesting cork trees in a process that doesn’t harm the rest of the tree. Both products are considered to be carbon storers — that is, negative embodied carbon — so they’re much more environmentally friendly than rigid foam, which has significant embodied carbon,” Goldman says.

FULL ARTICLE

Acton Passive House Awarded at Phius Passive House Design Competition

ZED’s Acton Passive House was a winner in the Source Zero Category of the 2022 Phius Passive Projects Design Competition. To even be considered, projects had to be Passive House Certified by Phius, and competed against the best of the best in passive design. In addition to being PHIUS+ 2018 Certified, the Acton Passive House also attained Source Zero certification, an additional designation indicating that the home produces any remainder of energy demand with on-site renewable energy.

The Source Zero category was one of 8 medals awarded at ‘PhiusCon’ 2022, held in Chicago’s historic Palmer House Hotel. This recognition is testament to the Acton Passive House’s incredible performance. With rooftop solar panels, the home is projected to produce more energy than it uses over the course of a year, making it net positive energy as reflected in the negative pEUI (-3.81kBtu/sf/yr).

The 8th Annual Phius Passive Projects Design Competition Awards Ceremony recognized a winner and honorable mention in each category, with submissions from throughout the United States and Canada. Categories were: Single-Family, High-Rise Multifamily, Low-Rise Multifamily, Commercial/Institutional, Retrofit, Source Zero, Best Project by a Young Professional, and Best Overall Project. All awardees pushed the boundaries of passive building design.

MORE: ARCHINECT NEWS PUBLISHES WINNERS

MORE: PHIUS PROJECT DATA

List of Winners:

Phius Project Data:

ZED WINS SILVER IN 2022 PRISM AWARDS

ZeroEnergy Design’s Acton Passive House was awarded a Silver medal for Best High Performance/Energy Efficient Home at the 2022 PRISM Awards, held annually to celebrate the best of the best in the local residential building industry. A record 370 PRISM entries were received this year with 12 judges from across the country choosing Gold and Silver crystal award winners who were announced at the gala.

Acton Passive House. This custom home was designed as a primary residence for a client who desired high performance as well as a respite from urban life. His vision was a home nestled in the woods and right-sized for his lifestyle, nothing more, nothing less. The result is a sleek house with a simple shed roof, designed to the PHIUS+ 2018 performance standard, which offers energy efficiency and exceptional comfort. In order to help ensure low operational cost, the roof is outfitted with a solar (PV) array and has also achieved Source Zero Certification.

The Builders and Remodelers Association of Greater Boston (BRAGB) is one of the leading trade associations in New England since its inception in 1944. The PRISM Awards Gala is the BRAGB’s flagship event of the year and winning an award is considered a sign of excellence and superior achievement. Each entry submitted in the PRISM awards competition is judged on its own merit by a national panel of distinguished industry professionals.

 

In Progress: Multifamily Housing in Taunton

ZED has been working with the Taunton Housing Authority (THA) since 2020 to perform a comprehensive sustainable renovation of four scattered site low-rise developments with 24 units of multifamily affordable housing. Funded by DHCD Formula Funding and a Comprehensive Sustainability Initiative (CSI) grant, the goal was maximum energy conservation, emission reductions, and water use reduction. The result was significantly upgraded apartments with superior insulation, triple-glazed energy efficient windows, insulated doors, and optimized systems to improve the quality of life for THA’s residents.

Energy and Cost Reduction. Testing, site visits, analysis and cost estimating resulted in cost optimal improvements, including air sealing, extra attic insulation, new doors, continuous insulation, foundation insulation, high efficiency boilers, and toilet replacements. Air sealing and insulation was achieved by the installation of a Zip System R-Sheathing for 4 inches of total continuous insulation, taped air/water-resistive barrier, re-siding, and air sealing at vented attics. At the Martel Street development, the fieldstone foundation wall and rimboard was air sealed and insulated using low GWP closed cell spray insulation. This resulted in a 70.5% air tightness improvement between pre- and post-construction blower door testing.

Overcoming Challenges. Each of the four sites had unique conditions, however all shared the challenge of increased costs and elongated procurement due to COVID-19. Additionally, there was existing poor quality construction at two of the four developments, no access to crawl spaces under one development, and fully occupied residences during all renovations. At one development, Owner records showed that construction was completed in 1983, however closer observation indicated a far earlier vintage, such as balloon framing and heavy timber sill on fieldstone foundations. Re-siding and re-roofing were outside of the project scope, so ZED recommended 3” low VOC ccSPF insulation for the basement air sealing and insulation, allowing resident reentry within 6 hours; foam sealant plus blown cellulose insulation for the attic.

 

Zip system tape at flanged window creating positive drainage 

Zip-R insulated panel over 2” foil faced insulation and self-adhered air barrier

Foil faced insulation over continuous air barrier 

Cement board and stucco protection over foundation insulation board

Wall insulation inside porch roof

New low-maintenance, durable roofing and siding

ZED WINS GOLD AND SILVER IN 2021 PRISM AWARDS

ZeroEnergy Design took home two medals at the 2021 PRISM Awards, held annually to celebrate the best of the best in the local residential building industry. A record 331 PRISM entries were received this year with 12 judges from across the country choosing Gold and Silver crystal award winners who were announced at the gala.

ZED’s Hingham Marshfront home won a Gold PRISM Award for Best Single Family Home: 3,000 to 4,500 SF. This green home was designed for a Hingham-based couple who commuted to Boston for work and desired a modern residence on their marshfront property that fit with their green lifestyle. Outdoor connections include a gracious 1,000 SF deck with al fresco living areas overlooking the vegetated salt marsh, a vegetable garden and an outdoor shower. Green features include a super insulated enclosure, triple-glazed windows, efficient cold climate heat pumps for heating and cooling, plus a rooftop solar electric system to offset energy consumption. These features not only reflect the owners’ efforts to be ecologically responsible, but also their desire for year-round resilience, protection from the elements, and optimal thermal comfort.

ZED’s Mt. Hope Modern home won a Silver PRISM Award for Best High Performance/Energy Efficient Home. This seaside Portsmouth, Rhode Island home home features warm stylish interiors, incorporates coastal resilience, and achieves near net zero performance, all while capturing commanding ocean views. While the design of the home gives it the appearance of being light on its feet, it is truly heavy on both energy performance and durability. The all-electric, super-insulated home’s consumption is offset with clean energy production from a 20kW solar electric system - and in terms of performance, the home has an amazing 2.8kBtu/sf/yr actual EUI, which is effectively 95% better than a typical code build house in New England.

The Builders and Remodelers Association of Greater Boston (BRAGB) is one of the leading trade associations in New England since its inception in 1944. The PRISM Awards Gala is the BRAGB’s flagship event of the year and winning an award is considered a sign of excellence and superior achievement. Each entry submitted in the PRISM awards competition is judged on its own merit by a national panel of distinguished industry professionals.

MORE: Awards Presentation

 

In Progress: Acton Passive House

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New Home Targeting Passive House Certification. This newly constructed home nestled in the Acton woods is an exercise in restraint, simplicity and form, all working together to create a stylish, environmentally sensitive residence. The home is Passive House (PHIUS) pre-certified and is on its way to receiving full Passive House certification. As construction nears completion, we take a look at the blend of features that were carefully balanced to create a tranquil indoor environment with an efficient footprint. 

Designed for Respite from the City. ZED was engaged to design this custom home as a primary residence for the client, who desired quiet and respite from urban life. The client envisioned a combined living/kitchen/dining room as the home’s nexus, which we designed with a wall of continuous glass that wraps the southeast corner of the house, connecting the interior to the natural surroundings. The rest of the home’s 1,650 SF rectangular footprint is composed of two bedrooms, two bathrooms, an office and mechanical/laundry room, all of which follow a simple, modern aesthetic – polished concrete floors, minimalist fixtures, and glazed so as not to have to turn on a single light during the day.

Constructed for Small Operational Impact. Adhering to the Passive House standard means that this Acton home will have incredibly low operational energy. A floating raft of insulation beneath the concrete foundation, known as a mono form EZ slab, creates a thermal break as well as a form for the concrete slab. To complete the airtight foundation, Stego Wrap was installed as a vapor barrier before the concrete was poured. Construction wasn’t easy, interrupted more than once by major snowstorms and high winds, but contractor Adams + Beasley was up to the task, weathering the challenging elements without compromising on the super insulated envelope or energy features.

This Acton residence is a Pre-Certified Passive House (PHIUS+) and will target Passive House Certification once completed

This Acton residence is a Pre-Certified Passive House (PHIUS+) and will target Passive House Certification once completed

Vastly Reduced Embodied Energy. For the home’s walls, wood fiber continuous exterior insulation, combined with dense pack cellulose in the wall cavities, was used - not only is wood fiber 100% compostable at the end of its life, but also exceptional for acoustic insulation and fire safety. Air tightness was achieved through a continuous exterior air/water barrier. An 18-inch truss of dense pack cellulose was used to insulate the top-vented shed roof, minimizing the use of foam. Since there is no basement, there was far less concrete used to construct the foundation, meaning less embodied energy. The home also faces due south, so there will be exceptional solar access for the photovoltaic panels, which will produce enough electricity to arrive at net zero or net positive energy.

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Check out More Construction Imagery and Time Lapse Video from Adams + Beasley’s Portfolio Page.

ZED's Lincoln Net Positive Farmhouse Featured in Houzz

Houzz’s new article on sustainability solutions from across the world showcases ZeroEnergy Design’s Lincoln Net Positive Farmhouse - a modern home that utilizes energy-efficient techniques to produce more energy than it consumes while blending into the rich, cultural landscape of Lincoln, Massachusetts.

With a super-insulated building envelope, high-performance triple-pane windows, thoughtfully designed mechanical systems, and high-efficiency appliances, the all-electric Lincoln Net Positive Home consumes 70% less energy than a similar house built to code. An air source heat pump and an energy recovery ventilator ensure optimal thermal comfort and fresh, clean air throughout the year while a 13.1 kW array of solar panels produces 67% more energy than its annual consumption. The article and complete case study are linked below.

MORE: HOUZZ ARTICLE
MORE:
LINCOLN NET POSITIVE FARMHOUSE CASE

Architectural Digest Reviews the Architecture Industry's Response to Climate Change

Architectural Digest took a close look at the impact of the building and construction sector on climate change and what the architecture industry is doing to make a difference.

The article contains insights from leading industry experts, including AIA President Jane Frederick, Bjarke Ingels of BIG, and ZED Managing Director, Stephanie Horowitz.

In her interview for the article, Horowitz highlighted the importance of thinking ahead and designing and building today’s homes and buildings in alignment with the upcoming benchmarks for climate change. She also pointed out that it was not only new construction that needed to be addressed. “The new homes that we design and build are the low-hanging fruit. The challenge is the existing housing,” Horowitz said.

According to the AIA, 82% of the commercial buildings in the U.S. were built before 2000 - before the modernization of building energy codes for design and construction.

Full article is linked below.

MORE: ARCHITECTURAL DIGEST

ZED's Top Performance in AIA 2030 Commitment Recognized ON Rise

Rise, a leading online publication for sustainable home improvement, recently published a story on the impact of the AIA 2030 Challenge on the built environment and the continued efforts of leading firms such as ZeroEnergy Design to make their portfolios carbon neutral.

Each year, signatories of the AIA 2030 Commitment program, which supports the AIA 2030 Challenge, track and report their annual progress against energy reduction targets through energy-efficient design. In 2018, ZED reported an impressive 92.6% reduction in pEUI savings across its entire architectural portfolio, becoming one of only 16 firms nationwide to exceed the 70% target.

Full article is linked below.

MORE: AIA 2030 Challenge - A Look at Its Impact and Leading Firms

ZED's Stephanie Horowitz to Speak at Wellesley Green Collaborative Meeting

We are proud to announce that ZED Managing Director Stephanie Horowitz has been invited to speak on Sustainable Buildings at the next Wellesley Green Collaborative Meeting.

The meeting’s prime focus will be on state-of-the-art sustainable/net zero energy construction and its application to commercial, residential, and municipal construction. Other speakers include William Maclay (Maclay Architects), Fred Bunger (Vice Chair Wellesley, Sustainable Energy Committee), and Marybeth Martello (Sustainable Energy Administrator).

WHEN: Tuesday, January 21, 2020, 9 - 11.15 am
WHERE:
Wakelin Room of the Wellesley Free Library, Washington Street

The Wellesley Green Collaborative is a quarterly gathering of environmentally-minded organizations and offers opportunities to speak with other professionals experienced in energy conservation, share initiatives, and brainstorm ideas.

MORE: WELLESLEY GREEN COLLABORATIVE

ZED NAMED IN ARCHITECT 50 SUSTAINABILITY LIST

Architect Magazine, the official Journal of the American Institute of Architects, just ranked ZeroEnergy Design within the top 50 firms for Sustainability nationwide .

Participating firms in the Sustainability category were ranked on a combination of factors, including AIA 2030 Commitment submission data, energy and water metrics, employee certifications, building certifications, and project data that best demonstrated the firm’s commitment to sustainable design. A third-party research firm compiled the rankings and fact-checked for consistency.

MORE: ARCHITECT 50 - TOP FIRMS IN SUSTAINABILITY

APPLETON FARMS SETS A SUSTAINABILITY EXAMPLE

In this video by the USGBC, former Director of Structural Resources for the Trustees of Reservations, Jim Younger, describes the sustainability philosophy used at the Center for Agriculture and the Environment at Appleton Farms. Both the farmhouse and the west wing on the property underwent a thorough renovation and deep energy retrofit to achieve the client’s desire for net zero carbon energy performance.

ZeroEnergy Design provided energy consulting and mechanical design services for this project.

MORE: USGBC VIDEO
MORE:
APPLETON FARMS CASE STUDY

Architect 50 names ZED as #2 for Sustainability

Architect magazine, the official Journal of the American Institute of Architects, has just released the 2017 Architect 50, a nationwide ranking of professional architecture practices.

The 2017 Architect 50 list names ZeroEnergy Design as #2 in the United States for Sustainability and #12 Overall.  In past years ZED has placed both #3 and #6 nationwide for Sustainability, and has now received the new higher position.

Rankings are based upon a combination of factors including submission documentation, the AIA's Architecture 2030 program data, and a panel of judges. Submitted data is also reviewed for accuracy by a third party verification firm. Rating categories include Design, Business, Sustainability, and Overall.

MORE:  ARCHITECT 50 - SUSTAINABILITY LIST

ARCHITECT 50 List + 6th for Sustainability Nationwide

Architect magazine named ZeroEnergy Design on the ARCHITECT 50 list!
ZED also placed 6th for Sustainability in the United States!

The national 2016 ARCHITECT 50 list, a list of the top architecture firms across the country, is generated annually by Architect magazine, the Journal of the American Institute of Architects.

VIEW:  ARCHITECT 50 LIST

VIEW:  SUSTAINABILITY LIST

Architects were rated and listed in separate categories, including business, sustainability, and design, plus an overall score. The rating methodology utilized a formula generated by industry experts and was paired with judging interpretations by Architect magazine editors.

READ:  PRESS RELEASE

Architect Magazine Says ZED is #3 Nationwide for Sustainability!

Architect magazine publishes the prestigious Architect 50 List each year. ZeroEnergy Design was selected as #3 nationwide for Sustainability, surrounded by Gensler and Sasaki Associates, two of the largest firms in the United States. Our firm is thrilled to see the level playing field between firms of all sizes, paired together with the strong emphasis on sustainability.

READ:  ARCHITECT 50 SUSTAINABILITY LIST