Can’t vent at valleys and dormers? Use a smart vapor retarder (not foam)
Straight gable roofs are easy to vent, and ideally would be vented. But often we end up with dormers, valleys and other complications. In this post we feature Alex Wilson’s house rebuild in Vermont...
View Article475 Video: LUNOS e² Installation Guide
To make the Lunos e² system installation as clear and simple as possible we’ve produced the below video installation guide. The guide is a quick but thorough step-by-step walk-through the complete...
View ArticleBlow-in-Blanket Fiberglass Between Airtight Pro Clima Membranes is High...
Building Science Corp is clear on the fact that airsealing trumps insulation values. For truly high performance insulation to achieve its rated R-value and prevent thermal bypass, it should be air...
View Article475 On-Site with Edenworks in Brooklyn
We’re happy to introduce the first video of a series we’re calling “475 On-Site.” In this ongoing series, 475 will broadcast some of the many projects that are making a difference and creating high...
View Article475 Does WUFI®: Mold Potential and Historic Masonry Retrofits in Climate Zone...
A key piece of the puzzle as we decarbonize our building stock is successfully retrofitting historic masonry buildings to high performance standards that provide energy efficient operation and comfort...
View Article475 Continuing Education Presentations
We are constantly developing new educational materials and part of that effort includes professional continuing education presentations – including AIA and CSL credits. We will be also offering BPI...
View Article475 On-Site: New Frameworks Natural Design Build in Middlesex, VT
In this ongoing series, 475 visits some of the many projects that are making a difference and building high performance. Today, it’s New Frameworks Natural Design Build. Based in central Vermont, New...
View Article2014 Passive House Conference in New York City
NY Passive House 2013 Symposium & 2014 Invitation from Charlie Hoxie on Vimeo. NY14 Passive House Conference & Expo has been announced for Tuesday, June 17th in Manhattan. NY Passive House is...
View Article5 Reasons Why Airtight Drywall Is Obsolete
After perhaps keeping the rain out, airtightness is the most important thing we can do to make our buildings energy efficient and comfortable. That’s a building science fact. A fully functional air...
View Article10 Tapes Tested: Pro Clima TESCON Vana Tested Best
Wingnut Test Facility (WTF) auteurs Peter Yost and Dave Gauthier have provided an update to their ongoing tape adhesion testing on BuildingGreen.com, here. We are gratified to report that...
View Article62.2, Joe is Right. An 8 Point Ventilation Reality Check
The updated ASHRAE 62.2-2013 standard, titled Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings, has met with debate about what a ventilation “minimum standard” should be...
View ArticleAdhesive Bonds and Failures: What’s Really Going On
We use adhesives to form airtight and watertight enclosures. It is essential that the adhesive bonds are strong and lasting…. 50 years, 100 years, and longer. How do we know when we have the right...
View ArticleMarlboro, VT: High Performance House with Vapor-Open Walls and Roof
A low-energy project by Michael Einermann, working with Kent Webster of Webster Construction, in Marlboro, VT, elegantly illustrates the simplicity of high-performance construction with vapor open...
View ArticledesignPH Training in California, Vermont & New York
The Passive House Institute’s (PHI’s) new designPH software allows one to use SketchUp to create a model for preliminary suitability studies – to tweak the design’s energy balance and physical form in...
View ArticleReport from Germany (Part 2): Having Fun with Passive House
I had great fun on a week-long trip to Germany for the International Passive House Conference – and a visit to our supplier Pro Clima. On my way back I was pleasantly surprised to get a request from...
View ArticleRugged Pro Clima Tape from 475 Supports RISD Techstyle Haus in Versailles
475 High Performance Building Supply (475) is a proud sponsor of the Techstyle Haus entry to the Solar Decathlon Europe 2014 competition. Techstyle Haus is designed and built by students at Rhode...
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475′s 2014 Year in Review
2014 has been a great year of activity and growth at 475. Let’s take a quick tour: Enhanced Customer Service is first and foremost in our minds and we hit important milestones growing our...
View ArticlePress Release: 475 Granted Exclusive Pro Clima Distribution in Canada
FOR IMMEDIATE RELEASE Building Airtightness Specialists Offer New Solutions to Canadian Builders German Airtight Building Leader Grants Exclusive Canadian Distribution to 475 High Performance Building...
View ArticleBSC & PHIUS Passive Building Report Not Airtight
Very good enclosure airtightness is a cornerstone characteristic of low-energy, resilient, high-performance (Passive House) buildings. Air control is so important that the Building Science Corporation...
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We’re Moving
Wherever we go – INTELLO is never far. We’re happy to announce a big move for the 475 team. After four years at our 131 Union Street location, we’re growing into a new space of our own. Our migration...
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