475Oliver

Guided by Passive House standards, we are dedicated to transforming American construction to high comfort and low energy building

[475Oliver @475oliver]

Excited to be presenting about Masonry Retrofit projects with John Mucciarone of ZED and Jeremy Avellino of Bright Common in Portland Maine today

[475Oliver @475oliver]

Jesse Thompson at #PHMASymposium nails it - #airtightness provides multiple benefits essentially for free

[475Oliver @475oliver]

Super cool #GUTEX #PassiveHouse project in Burlington VT designed by Arthur Chuhkman and being built by New Frameworks. Yup that’s 160mm (6.3”!!!) wood fiberboard insulation/WRB over 2x6 framing with #Proclima Tescon Vana taped plywood air barrier. #CarbonNegative

[475Oliver @475oliver]

New timber frame home in Vermont by Bellwether Craftsmen VT with #Gutex over #ProClima Intello X with cellulose. Went away from SIPs to foam-free, low carbon construction above the foundation and easy to install continuous interior #airtightness. #Sustainability

[475Floris @475Floris]

Getting the hang of VISCON liquid applied airbarrier @foursevenfive for sealing Urban Myth masonry joist connection #passivehouse

[Prof. Jason Box ⚡️ @climate_ice]

The grass in Denmark is brown after no rain in weeks. Persistent weather extremes are an emerging signature of Arctic climate change.

[475 @foursevenfive]

Great turnout at the Cambridge Passive House tour this afternoon! @luederHerms presenting on @proclima airtight systems with an INTELLO backdrop #passivehouse

[475Floris @475Floris]

VISCON linguists applied Proclima airbarrier
Airsealing is artwork? It is when building mock ups!

And diligence is always needed.

[475 @foursevenfive]

Why the vapor curve matters, what it means for a material to be 'vapor variable', and how these materials stack up when it comes to durability and protection. https://t.co/fz9moesoZU

[475 @foursevenfive]

Why the vapor curve matters: how vapor variable materials stack up when it comes to mileage and protection https://t.co/vHNoOEAYZ2

[475Oliver @475oliver]

Francis from Byggmeister sporting his free 475 hat #BE18

[475Oliver @475oliver]

“Smart vapor retarders work.” Kohta Ueno, Unvented Roofs without Spray Foam: The Latest Building America Research, presented at #BE18

[Roman @cliomahouse]

Looking forward to deliver the first practical session, part of airtightness training, @ecologicalbuild fab new extended training area! More Windows, Rooflight, details and area! 👍

[475 @foursevenfive]

We're ready for you #BBD18 -- stop by the booth, and ask for one of our coveted 475 baseball caps. We have just 10 to give away.

[475 @foursevenfive]

Happy New Year from the 475 Team! Wishing everyone a happy, healthy, and airtight 2018

[ZeroEnergy Design @ThinkZeroEnergy]

Collaborative article on #netpositive #resilient #farmhouse https://t.co/Kmr3CWxV5d with @FourSevenFive @ThoughtformsMA @ThinkZeroEnergy. Plus in case you missed it, the #ZeroEnergy Certified case study is live on @Living_Future site: https://t.co/In4XqTNvmd

[Alex Steffen @AlexSteffen]

Denialism is offensive not because it's a different point of view, but because it's a fundamentally dishonest one, with serious consequences

[Bill McKibben @billmckibben]

Earth seems to have spent its first day above 410 ppm CO2 in, oh, five million years or so.

https://t.co/RgXr46Unys

[Bill McKibben @billmckibben]

Bannon/Trump offensive is very new--not usual rightwing greediness, but an assault on basic pillars of our democracy https://t.co/oCOxigGFm4

[Bill McKibben @billmckibben]

On Thursday, temps at the North Pole will be 50-60F above normal. That seems unnerving https://t.co/PxYDiLIGXS