April 12, 2018

The 475 Crew Volunteers at a Superfund Site

Every day is Earth Day at 475, but this year, the team wanted to do something extra in observance. To us, Earth Day is a chance to be mindful of your impact on a local and global level, and a day to not only take action for the environment but to take action in your community. […]

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April 7, 2018

Lightway: The Next Generation of Solar Tubes

Daylighting our building interiors has many well-known benefits – as it makes us healthier and more productive at work, school, and home.  What could be better? From Emperor Hadrian’s ancient Pantheon in Rome to the Johnson & Son administrative building by Frank Lloyd Wright – bringing daylight deep into otherwise dark interior spaces is an […]

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February 13, 2018

In the PHI Lab and In the Field: INTELLO Tests Tightest

Pro Clima’s INTELLO airtight system proven by Certification of the Passive House Institute and at the University of Northern British Columbia. Airtight Passive House and high-performance building enclosures help make more comfortable, healthy and energy efficient buildings. The tighter the better. It can’t be repeated enough. It follows that to make an enclosure airtight, we must use airtight materials. Ergo, the tighter […]

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January 1, 2018

What’s 475 About – Reflections for a New Year (2018)

This article was first posted January 1, 2017.  With each New Year we’ll revisit and update/edit as we see appropriate – keeping our sense of mission and values front and center. When people ask what do we do, one abbreviated response is: “We sell tape.” Though “we sell tape” describes a simple act, it is […]

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December 22, 2017

475 Tape Performance Lab: Tapes, Primers and Pressurization

Welcome back to the 475 Tape Performance Lab (aka our Brooklyn HQ presentation room). Check out last month’s experiment: Underwater Tape Test. We ask a lot of our tape. It airseals the junctions between the components in our high performance assemblies, helps ensures safety from mold, and lasts forever. A good tape not only sticks, adheres, and makes […]

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May 17, 2017

New England Forges Ahead: Passive House Buildings

When advocating for Passive House buildings it’s often not very convincing to point to successful projects in other countries.   People understandably want to see local professionals working successfully with local builders and local owners. Local examples of Passive House building are critical to achieving popular acceptance. Consequently, 475 is happy to support the recent publication of […]

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January 23, 2017

Vented High Performance Standing Seam Metal Roof

SOLITEX UM Project Spotlight in Waltham MA SOLITEX UM from Pro Clima is  a 4-layer, vapor open and waterproof membrane with integrated 3-D mesh.  Like other SOLITEX membranes, it has an actively vapor open, monolithic layer of TEEE film that is extremely waterproof (see The SOLITEX MENTO Difference)– and outperforms vapor closed underlayments both in outward drying potential as well […]

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January 10, 2017

475 is proud to join: Business Backs Low-Carbon USA

475 is about climate change activism.  Today, we’re taking another step by joining more than 620 companies including Patagonia, Aspen Skiing Company, and investors across the United States – to encourage the incoming administration and new Congress to stick with the commitments we’ve made in the Paris Climate Agreement.  We pledge to do our part to […]

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January 1, 2017

What’s 475 About – Reflections for a New Year

When people ask what do we do, one abbreviated response is: “We sell tape.” Though “we sell tape” describes a simple act, it is one with a potentially huge impact. We sell air-sealing tape as a specialized and critical component in a complete building enclosure airtightness system, which is the foundation of a low-energy building. […]

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December 24, 2016

Foam Board Fire in New York City

On December 14th a NYU Langone Medical Center roof caught fire.  As reported on dnainfo by Ben Fractenberg and Aidan Gardiner: Workers were cutting metal when a spark flew onto a roofing insulation material called “rigid board” and caught fire on the seventh floor of 560 First Ave. near East 30th Street, a vacant property that’s […]

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November 15, 2016

LUNOS Ventilation FAQ

Lunos HRV systems are a great way to add healthy, balanced and efficient ventilation to your project. For cold climate ventilation we offer three primary products: the Lunos e², Lunos eGO, and Lunos NExxT. This post is mainly about the e² and eGO systems, each of which consists of through-wall paired fan units with regenerative heat recovery cores. These […]

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November 4, 2016

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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September 30, 2016

Don’t Miss The Passive House Massachusetts Symposium

Calling all New Englanders!  We’re looking forward to participating in the Passive House Massachusetts Symposium, in Boston, on Saturday, October 15th.  It should be a great day of Passive House related presentations and discussions. 475 is proud to participating in multiple roles:  as a vendor, a Gold sponsor and in presenting. Co-founder Ken Levenson will be […]

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September 13, 2016

NYSERDA Supports Passive House

In support of New York State’s aggressive carbon reduction goals the New York State Energy Research and Development Authority’s new incentives are structured to support a “fabric first” approach and then push toward net zero buildings.  NYSERDA recognizes the power of Passive House in establishing very energy efficient, resilient, healthy and comfortable buildings as the basis of […]

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August 30, 2016

BENYC 16: Best Price Through Sept 7th

Registration is now open for BENYC16 (BuildingEnergy NYC Conference + Trade Show).  BENYC16  is a not-to-be-missed conference that brings together professionals, policy makers, regulators and building owners – all working on energy efficiency and high performance buildings.  Hosted by the Northeast Sustainable Energy Association (NESEA), this year’s event will be held on November 3rd at the TKP […]

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June 28, 2016

SOLITEX Resource Library

Pro Clima SOLITEX exterior membranes are leading the way to higher performance and better energy efficiency in North American construction. SOLITEX products offer unmatched waterproofing, airtightness and outward drying potential for all types of projects. Their exceptional strength and durability make them suitable not only as housewraps or weather resistant barriers (WRBs) – but also as “sarking” membranes for vapor open […]

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June 28, 2016

A Declaration of Independence from Foam Plastic Insulation (2016)

In the spirit of 1776, 475 High Performance Building Supply is proud to reprint an update to our Declaration of Independence from Foam Plastic Insulation, first published for July 4th 2013 (Treehugger).  Enjoy: In BROOKLYN, NY, July 4th, 2016. A DECLARATION. WHEN in the course of constructing and renovating buildings, it becomes necessary for architects, consultants […]

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April 5, 2016

Best of Off-Label Uses Part 2

Because you love sending us examples of the many creative and improvisational ways you end up using our handy high performance materials, this has become a series of sorts. See part 1 of The Best of Off-Label Uses, and keep your images coming through twitter, facebook, or instagram. … and remember: don’t try this at home, […]

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March 15, 2016

Update on Passive House in New York

Passive House Emerges in New York: Effective and Affordable by 475 partner Ken Levenson and published on the Sallan Foundation website, is an overview of current Passive House activity in the Empire State.   New York is focused on achieving 80% carbon reductions by 2050 and Passive House is a powerful solution.  Fortunately as the […]

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February 11, 2016

INTELLO & DB+ Approved by DIBt for Use in Unvented Hot Roof Assemblies

The highly respected Federal Agency Deutsches Institut für Bautechnik (DIBt)* has certified INTELLO PLUS and DB+,  per German testing standard DIN68800-2, for use in unvented assemblies with vapor closed exteriors.  Such assemblies include unvented metal roofs, green roofs and gravel roof flat roofs, as well as vapor closed pitched roofs with asphalt shingles, EPDM, TPO etc.  With this certification these materials […]

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January 29, 2016

INTELLO PLUS Resource Library

INTELLO PLUS is revolutionizing the North American construction industry. No other product provides the same level of vapor control, airtightness and resilience for your high performance projects. We also know that many builders and architects out there are looking to increase their understanding of INTELLO PLUS – from how it works to how to install it. (more…)

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January 26, 2016

Historic Masonry: Notes and Details (updated)

475 in many ways started with historic masonry retrofits, and with our HQ surrounded by Brownstone Brooklyn, we are helping a great many of these 100+ year old buildings get high-performance/Passive House retrofits for the 21st century.  Our deep interest in making these retrofits work, has led us to produce public interest articles, eBooks, details and extensive […]

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January 8, 2016

Make Better Choices: Toward A Less Toxic World

Nature is toxic enough – it would seem sensible that we try to limit the amount of toxicity industry contributes.  Almost nothing is completely good.  But in the building industry as with much of modern life there are a dizzying array of invented chemical compounds that may provide great benefits but also deliver varying degrees of […]

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December 15, 2015

2015 Year In Review

2015 has been a year of firsts, a year of growth, and a year for the history books. We saw Passive House buildings go big this year, and we saw architects, builders, and designers up their game, developing some seriously deep green, thoughtful, and inspiring projects. From Regional Policy To Individual Buildings, Passive House Is […]

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December 15, 2015

Learning from PHIUS

What draws many of us to Passive House is its simplicity, its clarity, its predictability, and it’s drastic impact on comfort and energy efficiency.  But  achieving simplicity requires great repetition, practice and lots of training.  So last week attending the Passive House Institute US (PHIUS)’s Certified Builder training course in Yonkers, NY, was another good […]

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November 29, 2015

Passive NYC: Making the Pathway to 80 by 50

Passive NYC, A snapshot of low energy building opportunities, barriers, & resources, published by the the Building Energy Exchange, demonstrates that Passive House is a force to be reckoned with: in planning the future of our cities, at every level of policy making, and in building design. And 475, with our HQ in Brooklyn, is proud to […]

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November 17, 2015

CompAIR: The New Tool by Pharos for Comparing VOCs

One of the outcomes of building to the Passive House standard is superior air quality.  The combination of air-tight construction and mechanical ventilation ensures that fresh air is in constant supply.  However, with air-tight construction also comes the responsibility to prevent the introduction of materials that will emit harmful gases into a controlled space.  The emission […]

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November 17, 2015

Energy Vanguard on Our Airtight Signs

Energy Vanguard’s article, A Simple, Inexpensive Way to Better Airtightness highlights just that.  Allison Bailes of Energy Vanguard attended a Passivhaus Maine panel on making Passive House affordable over the weekend, and saw something that caught his eye: our AIRTIGHT BUILDING signs. Using these signs on jobsites, Diane Schless of Horizon Maine explained, is a simple and […]

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November 16, 2015

Lamilux Skylights at ABX 2015, Boston, Nov. 17-19

The latest in skylight performance from Lamilux will be on display at ABX 2015 in Boston from November 17 to 19. Please stop by Booth 877  to see samples and speak with US reps Oliver Klein and Floris Keverling Buisman from 475 High Performance Building Supply. Roof daylighting has many benefits, but can also be risky. […]

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