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The International Organization for Standardization (ISO) has published over 25,000 standards, but a select few dominate the global business landscape. Based on the most recent ISO Survey data (which tracks the number of active certificates worldwide), three standards consistently top the list. These “Big Three” are popular not just because they are often contractually required, but because […]
Join the leading community of building science experts Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field. Start free trial Replies Expert Member DCcontrarian | Mar 06, 2026 09:56pm | #1 That doesn’t seem risky at all. In 4a, your basement floor […]
My concern is lead contamination vs plastic contamination in water going through a kitchen faucet. Delta faucets use core and shell construction, so that pex lines run from the valves (my hot and cold are compression fit copper lines) through the body of the metal shell to the tip of the spout. The water only […]
I have some steel stud interior partition walls going in a building (climate zone 4) that has zoned heating/cooling. I would like to handle the insulation properly. There are basically two types of walls: A. Walls that divide conditioned space from conditioned space (might be a moderate discrepancy in temperature based on zoning). B. Walls […]
Hi all! We live just outside Halifax, NS, Canada, climate Zone 6. We are putting up a new building, and I have a question about vapour retarders. Our wall buildout (interior–>exterior) on the ground level is: drywall, 2×6 framed cavities with Rockwool R24 ComfortBatt insulation, sheathing, VaproShield barrier (orange frogskin), Rockwool ComfortBoard 80 R6 exterior […]
This article explores the construction of 12 new 3D-printed homes in Austin, Texas, built by ICON, a building-technology company focused on faster, more precise, and less wasteful residential construction. Using gantry-style printers, concrete walls are printed with embedded rebar and cavities for plumbing, wiring, and insulation, creating a fully structural assembly capable of withstanding natural […]