March 20, 2017

475 Presents: High Performance Gets Real

What exactly do we mean by high-performance building?  What are some of the obstacles to building this way?  And when compromises have to be made, how can we make cost-effective choices and still construct a high-performance, low-energy, and maybe even Passive House building? In this presentation, we talk about the 6 key characteristics of high performance […]

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February 15, 2017 Roof-THUMB

Daylight Helps the Healing Process: Project Spotlight in Leicester, UK

Daylighting’s known benefits include better student performance and faster patient recovery in medical facilities – so this beautiful roof, in a building that houses the University of Leicester’s medical education, health sciences and psychology departments, serves as an example of striking design that is sensitive to the needs and comforts of occupants.  Now the largest Passive House […]

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February 10, 2017 Screen Shot 2017-02-10 at 12.45.37 PM

GUTEX Gets Instagram Famous

We’re very excited to see so many images of GUTEX wood fiber board insulation popping up on projects across North America. Along with being the healthiest and most sustainable rigid insulation available… it also turns out to be pretty photogenic. Too bad you have to cover it up. Check out these pioneers in foam free […]

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November 4, 2016 Last reflection.

Project Spotlight – Prefab walls for a comfortable, cozy, and quiet Passive House in eastern British Columbia

Erik Olofsson of Erik Olofsson Construction has a vision of elegant and affordable design of the highest quality, reaching the Passive House standard for customers in his harsh Canadian climate.   Erik enlisted the help of Vincent Siu of Siu Architecture for the schematic design, and sought to deliver a highly predictable result with the pre-fab process – delivered […]

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October 13, 2016 brightcommon-thumb2

Low-Energy Commercial Retrofit for High-Energy Kids

Bright Common Architecture and Design Jeremy Avellino of Bright Common Architecture & Design gave us a tour of a beautifully designed play-based arts and enrichment center. Play Arts in Philly, which opened in September, features energy saving techniques inspired by Passive House in order to save on operational costs and provide high indoor air quality. […]

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October 12, 2016 bainbridge-havelock-wool-thumb

Havelock Sheeps’ Wool and Performance Insulation

Insulation  contractors are on the front lines of high performance building, delivering comfort and efficiency.  It’s a tough business. It’s rough to manage high turnover, squeezed margins, and communication barriers.  Those who take pride in the work, are interested in the results.  And leaders do the best with what they have, while also continuously looking for […]

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September 2, 2016 jeff_g_diagram

Cambridge MA – Small Urban 2-Story Gets a High Performance Upgrade

Here’s a sweet example of a successful Deep Energy Retrofit (DER) with airtight, foam-free walls and high performance ductless ventilation. The designer and GC is Jeff Geisinger, a Boston-based architect who recently completed a SMArchS in Building Technology at MIT. Peruse the stunning before-and-after photos along with Jeff’s great diagrams here (click on large photo for full-screen slide show). Airtightness Before Insulation With a recently […]

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August 16, 2016 BillRyallSquare400x400

The Ark at the End of Long Island

Net-Zero + Resilient Meets Modern Design High performance building is becoming easier to accomplish with every passing day, and we’re in no short supply of aesthetic-driven building projects. But finding a projects that both perform while pleasing the eye is a rarity. The work of Bill Ryall and his team at Ryall Porter Sheridan Architects […]

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August 16, 2016 swinburn_headline

The Dream Project: High Performance, Right-Sized, Thoughtfully Detailed

If you haven’t heard of Robert Swinburne Architect or Bluetime Collaborative yet, do yourself a favor and check out his website and blog. If you have followed his career, you know that he’s a talented and thoughtful architect focusing on single family homes in the Brattleboro, VT area. He is also a Certified Passive House Consultant (CPHC). One of Bob’s […]

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July 8, 2016 MelpetThumb

Healthy Indoor Air Quality Confirmed With LUNOS e²: Monitoring Shows HRV Does The Job At Melpet Farm

The residences at Melpet Farm is an affordable housing development by Preservation of Affordable Housing, Inc (POAH). Their mission is to create, preserve and sustain affordable and healthy housing communities that provide economic security and access to opportunity for all people. At Melpet, apartments were designed for low-energy use in townhouse buildings that incorporated airtight and highly insulated envelopes combined with hybrid LUNOS e² […]

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July 1, 2016 18CommerceThumb

Artwork Sees The Light Of Day In Red Hook, Brooklyn

High performance engineering has landed on the rooftop of the latest art gallery in Red Hook, Brooklyn. (click images to see full-size) 475 was excited to provide these high performance, custom-sized, triple-glazed Lamilux FE skylights for the yet-to-be-named gallery. The space spans several post-industrialbuildings, and will display dozens of works by contemporary artists when complete. […]

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May 2, 2016 BD reading

Office Envy

Make way for the new Caliper Studio passive office! Located on the North side of Brooklyn, an area that is rapidly transforming from an old industrial center to a new hub of hip restaurants, nightclubs, and artist studios. Caliper’s new digs seems to be emblematic of this change. The firm, founded in 2003, by Stephen […]

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May 2, 2016 Warkentien Forest Ave house and car (1)

The Returns From Indiana Are In: 0.4 ACH50 For The Win!

Cruz, Clinton, Trump, Sanders…Warkentien? Dave Warkentien lives in Indiana and recently earned winning numbers: 0.4 ACH50.   He also got winning returns on power usage: at negative 457kWh for the first three months of 2016 (and that’s after accounting for two electric cars usage of 655kWh). We haven’t seen numbers like that since the SURE House won the DOE Solar Decathlon. The wins […]

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April 25, 2016 exterior-long-shot_300x300

Jersey City’s First Certified Passive House is a Carefully Considered Retrofit

This article is a reblog from part 3 of a series from Jersey Digs. We’re seeing exciting updates from the architects at Mowery Marsh and construction management team of Brinton Brosius, with building science and Passive House consulting by Levy Partnership. In the newest of a series of blog posts on Jersey City’s first certified Passive House project, they […]

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April 19, 2016 INTELLO Waterbury

Waterbury VT Municipal Complex uses INTELLO Plus for Foam-Free Enclosure Moisture Control

In August 2011, floodwaters from Tropical Storm Irene decimated the downtown area of Waterbury VT, including the town’s government offices. A sure sign the town has rebounded from that calamity is the completion of the new Waterbury Municipal Complex, a project two years in the making. Designed by Vermont Integrated Architecture of Middlebury VT, and built by ReArch […]

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April 18, 2016 green_built_logo_v1-1

Support HempHome: Tiny+

The Tiny House movement has gained some serious momentum in the US over the last couple of years. Now, GreenBuilt has taken it to the next level, with the HempHome: Tiny+. They call it, “The Next Wave in Sustainable Building”: tiny, fossil fuel free, modular and to be certified by both the Passive House Institute […]

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March 28, 2016 JLC-LOGO

JLC Reports on Success of Foam-Free Unvented Flat Roof Assembly

475 enables more robust assemblies that are less toxic. Such was the case with the Whitchurch home in northern Vermont – working with the owners and their dedicated Passive House team at Montpelier Construction. The walls were a variation on the I-Joist outrigger configuration with dense pack cellulose between DB+ membrane inboard and SOLITEX Mento Plus […]

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March 8, 2016 Deborah_headshot

475 On-Site: Cornell Tech Details

Deborah Moelis of Handel Architects Shares Designs Of The World’s Tallest Passive House The Cornell Tech residential tower project has been widely covered in the media – from The New York Times to The Wall Street Journal,  Treehugger and The Atlantic. But those stories have only scratched the surface. As a company dedicated to providing in-depth information to professionals, we were hungry to […]

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January 14, 2016 IMG_8504

Affordable Net Zero Ready Housing on Cape Cod uses Lunos HRV Ventilation

The Residences at Melpet Farm look, at first glance, like a typical suburban development. There’s a mix of 27 one-, two-, and three-bedroom units housed in 8 farmhouse-style townhouses, clustered around a common green. But this development in Dennis, MA is actually a $7 million project overseen by Preservation of Affordable Housing (POAH) that was designed by Brown Lindquist Fenuccio & Raber Architects, […]

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September 1, 2015 Tiny House being raised and sheathed

Builder Spotlight: Maria Klemperer-Johnson of the Hammerstone School and Hammerstone Builders

The builders, architects, and building owners we work with never cease to impress us.  Our customers bring a level of experience and deep commitment to high performance construction that is inspiring, with many committed to the same goals we share around foam-free construction and favoring the use of more natural building materials and techniques.  When we […]

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August 10, 2015 intellomashpee

INTELLO Plus transforms assisted living facility in Mashpee, MA

  475 High Performance Building Supply is proud to be the supplier of INTELLO Plus intelligent vapor retarder membrane and other Pro Clima products for an Assisted Living Facility in Mashpee, MA. According to their website, “Bridges® by EPOCH at Mashpee continues our commitment to providing the highest-quality senior living experience and care exclusively for those with Alzheimer’s disease […]

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July 10, 2015 Dolphin_Roof

Unvented Foam-Free Roof Retrofit With Dolphin Insulation

There’s a growing demand for high performance roof retrofits. For many homes it can be most practical and economical to improve the airtightness and insulation from the interior. Often the homeowners also don’t want to leave their homes during the retrofit work. That takes spray foam off the table, since chemical exposure to spray foam during installation is a […]

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June 22, 2015 deBlasioCornell

Cornell’s New Campus Breaks Ground and Passive House is the Main Attraction

  This spring we said “Passive House Poised To Go Big.” Now we’re saying “Passive House Is Going Big.” On June 16th, Cornell Tech held a groundbreaking ceremony on Roosevelt Island. While the event took place to announce Bloomberg Philanthropies $100Mil gift to the new campus, the “BOOM!” heard round the low-energy/high-performance world was news that […]

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May 7, 2015 IntegratedService

Project Spotlight – INTELLO Plus with “Integrated Service Cavity” in Leicester VT

One of the most popular high performance walls is the double stud wall. Its appeal lies with the fact that it creates a good thermal break between two simple-to-build wood frame walls. It can also be economical, even before considering long-term energy savings. The open cavities are typically dense-packed with blown-in cellulose or fiberglass for insulation values ranging from R-30 to R-50 […]

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May 5, 2015 DChabitat400x400

475 On-Site: Habitat for Humanity, Washington DC

An airsealing team of volunteers achieves 0.2 ACH50 Habitat for Humanity of Washington DC is proving itself to be a leader in affordable Passive House building. After incredible coverage from National Geographic (wherein they suggest the homes may be among the most Earth-friendly ever built), we had to visit to get the details from the builder’s perspective. […]

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March 11, 2015 MetalVTHouse

475 On-Site: Northern Timbers Construction

Boxy But Beautiful Airtight Cottage After being totally blown away by some great conversations and great project visits in Vermont during the Better Buildings By Design Conference this February in Burlington, we were invited to stop to check out Alex Carver’s gorgeous, modern cottage project on Lake Champlain in Panton, Vermont, where he’s used Pro Clima and […]

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March 10, 2015 600

Lunos e²: A Zero Energy Home Solution

475 is proud to host this guest article from Michelle Tinner – a graduate student at SUNY Environmental Science and Forestry, MS candidate for Sustainable Construction Management (contact: michelle.tinner*at* Last year, a student team from Syracuse University, SUNY Environmental Science and Forestry, and Onondaga Community College competed in and won the first annual U.S. Department of Energy Challenge […]

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