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Guest Blogs A look at materials, installation strategies, and testing methods that make airtightness achievable on real-world projects By Michael Ingui | April 17, 2026 One of the starkest differences between passive house construction and standard construction methods is the focus on airtightness in passive house. Beyond hitting code minimums for airtightness (in New York […]

LowSlopeRoof | Apr 16, 2026 07:33pm | #2 On the outside of the outer wall is 5/8″ sheathing, 1×3 strapping for a rain-screen gap, and the siding. The structural engineer allows half the height of the bottom plate(s) to overhang the concrete core of the ICF, meaning 1-1/2″ maximum. This leaves 4″ of the structural […]

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We use cookies and data to Deliver and maintain Google services Track outages and protect against spam, fraud, and abuse Measure audience engagement and site statistics to understand how our services are used and enhance the quality of those services If you choose to “Accept all,” we will also use cookies and data to Develop […]

We use cookies and data to Deliver and maintain Google services Track outages and protect against spam, fraud, and abuse Measure audience engagement and site statistics to understand how our services are used and enhance the quality of those services If you choose to “Accept all,” we will also use cookies and data to Develop […]

We use cookies and data to Deliver and maintain Google services Track outages and protect against spam, fraud, and abuse Measure audience engagement and site statistics to understand how our services are used and enhance the quality of those services If you choose to “Accept all,” we will also use cookies and data to Develop […]

We use cookies and data to Deliver and maintain Google services Track outages and protect against spam, fraud, and abuse Measure audience engagement and site statistics to understand how our services are used and enhance the quality of those services If you choose to “Accept all,” we will also use cookies and data to Develop […]

I am doing a DIY house build right now and doing some heat loss calculations. I attempted to use some actual software but there were too many aspects of the software I didn’t understand. I have run the build through two different AI models and they spit out roughly the same numbers but I am […]

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Building Science Achieve optimal indoor air quality through balanced ventilation By RANDY WILLIAMS | April 16, 2026 I installed my first balanced mechanical ventilation system, a ventilation strategy that supplies and exhausts equal volumes of air during operation, in 2004. It was a heat-recovery ventilator, or HRV. At the time, my understanding was that the […]