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Michigan Awards $1.9 Million for Industrial Decarbonization Studies Five recipients will examine cleaner manufacturing, building systems and cement production at facilities across the state. By Danielle Naidu September 29, 2026 Manufacturers and other large facilities in Michigan will study potential emissions reductions through five projects receiving a combined $1,882,750 in state grants. The Michigan Department […]

There are two kinds of weekend mornings. The hungry, impatient kind — where you need something hot on the table in 20 minutes. And the slower kind — where the oven is warming and you have nowhere to be. Pancakes belong to the first. Banana bread belongs to the second. Once you know which mood […]

Hey folks,Just a double check on my wall assembly details before I close things in with a few questions. Zone 6 (verging on 5)- Slocan BC Canada. Thanks in advance and thanks to this site for all the help over the years.  A bit of context: Photo shows general shape of house – faces 15 […]

ISO 9001:2026 is officially here. Published on September 16, 2026, the new edition of ISO 9001 replaces ISO 9001:2015 and introduces targeted updates designed to make the standard clearer, more relevant and better aligned with the way organizations operate today. For organizations using ISO 9001, the important question is not simply “What changed?” It is: […]

We are rebuilding a 572 sq. ft 1948 cottage in Eugene, OR. We’ve done a good job making the cottage airtight, and for air quality have installed a Broan AI Series B150H75NT. When we commissioned it, we’re getting excessive sound from the two vents of the return ducting. That ducting is very simple: All 5″ […]

Assuming that my knee wall is very well air-sealed, will the following assembly still risk condensation in the heating season:  2×4 wood-framed knee wall, exterior sheathing is just foil-faced (both sides) polyiso foam board (no osb or plywood), R15 rockwool batts, 1/2″ drywall, latex paint.  It seems like there’s a risk of condensation forming on […]

Guest Blogs What we hand over on day one, what we learn a year later, and how both change the next project By Michael Ingui | September 25, 2026 We spend years designing a high-performance house, and it is too easy to skip the important final step of the process—describing to the homeowners what to […]

After reading some positive reviews on GBA, we recently purchased a 4″ Tamarack cape backdraft damper (https://www.tamtech.com/product/cape-backdraft-damper/) to replace a bathroom exhaust fan damper that flapped on windy days.  We thought it would produce a superior seal, but after seeing it up close, we fail to see how it can effectively seal a backdraft.  There’s […]

Radiant heating has been popular for a long time, mainly in cold climates where homes don’t have any kind of cooling system. Now those places are getting cooling systems because of the warming climate and frequent wildfires. And the idea is spreading to other climates as well. But how does the physics of radiant heat […]

CESA Report Outlines Framework for Scaling Virtual Power Plants A new report from the Clean Energy States Alliance highlights communication standards and regulatory clarity to expand virtual power plants. By Jesse Jacobs September 24, 2026 A report authored by Adam Warren for the Clean Energy States Alliance focuses on how virtual power plants operate and […]