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PhiusCon 2025 - Few Highlights
Here’s a quick roundup of a few highlights and industry updates from #PhiusCon Scale is no barrier for Passive Building A major milestone for large-scale applications — like Alloy Development’s 62-story, 582-apartment high-rise in NYC ( One Third Avenue ) aiming Passive House certification and proving that comfort, resilience, and efficiency work on large scale projects. Source: https://www.alloyllc.com/work/one-third-avenue Passive House Certification is Required in Multifam
Stefan Goebel
6 days ago1 min read
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High-Performance, Energy-Efficient Vertiport Concepts
We’re proud to support Archer in their mission to revolutionize urban air mobility by creating high-performance, energy-efficient...
Stefan Goebel
Sep 231 min read
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Thermal Bridging in Details & Impact on Energy Use
Office Hour Recap – August 8  During this session, we dug into a very conventional problem: a basement column going through a floor...
Stefan Goebel
Sep 91 min read
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33 Joralemon – Phius CORE 2021 Design Certification
At Build Zero Consulting , we believe every project is an opportunity to shape a healthier, more resilient, and more sustainable future....
Stefan Goebel
Sep 31 min read
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Comparing 2x6/2x8 with a Double Stud Wall
🔊 At this Passive House & Net Zero Energy Office Hour, Ryan Abendroth , lead CPHC with BuildZeroConsulting  dug into the pros and cons...
Stefan Goebel
Sep 31 min read
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John Grace Arms – Phius CORE 2021 Design Certification
Build Zero Consulting is proud to announce that John Grace Arms , an affordable multifamily housing project in Michigan, has officially...
Stefan Goebel
Jul 161 min read
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What is Cross Leakage in ERV's and Why it Matters Particularly in Multi-Family Projects?
Cross leakage  refers to the unintended transfer of air  between the exhaust air stream  (from inside the building) and the incoming...
Stefan Goebel
Jun 191 min read
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Phius Design Certified
🎉 Our latest project has achieved Passive House Design Certification, ensuring exceptional energy efficiency, comfort, and resilience. A...
Stefan Goebel
Feb 111 min read
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How do Passive House Design Principles Support Fire Resilience in Buildings?
How do Passive House Design Principles Support Fire Resilience in Buildings? Passive House principles can contribute to improved fire...
Stefan Goebel
Jan 172 min read
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Why Combining Green Roofs and Photovoltaic Systems?Â
âž¡ Green roofs can increase the efficiency of PV systems by cooling the surrounding environment. The cooler temperature around the panels...
Stefan Goebel
Oct 14, 20241 min read
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Vacuum Insulated Glass (VIG) can achieve up to R19 in certain glazing configurations!
Thank you Jason Blush  for the great discussion at GlassBuild America  about Guardian Industries 's vacuum insulated glass (VIG) units....
Stefan Goebel
Oct 11, 20241 min read
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Cooling & Resilience: The In's and Out's of Energy Modeling
Listen in to this Passive House Accelerator episode on Cooling and Sumer Resiliency series where co-host Ilka Cassidy, Ryan Abendroth,...
Stefan Goebel
Sep 20, 20241 min read
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Window to Wall Joint Sealing done differently Part 2 - Install!
Stefan Goebel (Build Zero Consulting) visits Hanno in Hanover, Germany to interview Philipp Staude (Hanno) and learn about expandable...
Stefan Goebel
Sep 18, 20241 min read
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What it's like to work in an office building that was designed based on the Passive Building principles and why this German company chose to build it that way.
I talked to Volker Brock, CEO of Hanno and Philipp Staude, R&D of Hanno to understand on what encouraged the company to go the extra mile...
Stefan Goebel
Sep 13, 20241 min read
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How to cut cooling loads in all glass buildings - ACT Facade
Reducing cooling load on all glass buildings is a common challenge. Double skin facades tackle this issue but are costly and carbon...
Stefan Goebel
Sep 10, 20242 min read
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Net Zero Energy & Passive House - Window to Wall Joint Sealing done differently!
Stefan Goebel (Build Zero Consulting) interviews Andreas Rissmann (Hanno) on how Hanno's expandable multi functional tapes work and can...
Stefan Goebel
Aug 29, 20241 min read
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The insulation R-Value from a data sheet is only half the truth! Is a 2x6 wood stud wall really R22 at R4/inch (thermal performance) as stated on manufacturer data sheets?
No, its about 19% lower (R17.9) due to thermal bridging from the wood studs. How does this impact the buildings energy performance? âž¡...
Stefan Goebel
Jul 19, 20241 min read
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How does an IECC 2018 building enclosure hold up against a Passive Building (Phius) Enclosure? And what matters most, U-Value, R-Value or Air Leakage?
➡ Check out this Phius Prescriptive Snapshot (Residential) to IECC 2018 residential and commercial enclosure comparison. ➡ While the...
Stefan Goebel
Jun 28, 20241 min read
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Architects, Builders, Consultants and Material Vendors will benefit from this; a free tool to provide the project team with climate and cost optimized specs. for high performance buildings.
Simply enter the project location and conditioned floor area to receive Window U-Value as well as Roof, Wall, Slab R-Values and...
Stefan Goebel
Jun 27, 20241 min read
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Window U-Value Spec. and it´s Impact to Comfort & Condensation
The minimum thermal performance comparison at a 5ft and 10ft window height for NYC, Boston, Chicago, Houston and San Francisco that will...
Stefan Goebel
Jun 25, 20241 min read
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