Sealed vs vented crawlspace under an insulated floor – GreenBuildingAdvisor

Hey there Building Science Enthusiasts! I am building a straw bale panel house in Columbia, Missouri where we have hot humid summers (very much the case right now haha). I am normally all about sealed crawlspaces – the humidity in the cool soil here in Missouri under a house will most certainly cause water precipitation […]

As global supply chain challenges and uncertainty around lithium supplies persist, sodium-ion batteries will remain an appealing solution given the abundant nature of… The post The Moving Target for Sodium-Ion Batteries: Innovation and Policies Shape the Evolving Market for Battery Technologies appeared first on Cleantech Group.

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Building Science In this building science puzzle, did we discover the cause of the wrinkly shingles? By Randy Williams | July 24, 2025 This photo of the wrinkled shingles was taken in the fall of 2024 when the roofing installer and insulator were trying to figure out what was going on. This is the second […]

In the process of designing a mater bedroom/bath addition that will be elevated on a col. and beam system (due to grades on site). I believe I have proper air and insulation barriers in place for climate zone 6 with an elevation of 6,000ft (which makes for a typically dry air environment). I included a […]

An unpredictable H1 2025 has shaped new needs for the innovation ecosystem for more carefully curated funding that can withstand potential shocks to… The post Curated Capital in a Risk-Filled World: Cleantech’s Mid-Year Funding Reality appeared first on Cleantech Group.

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I am looking for some guidance if I should put in an ERV. New construction home in climate zone 5A. 2 stories and a basement. About 4600 sqft above ground and 2000 sqft below ground. Blower door came back at 2.02 ACH50. The home has two furnaces, one in the basement and another in a […]

Kiryl | Posted in General Questions on July 22, 2025 10:53am Hello everyone, recently I read about Vapor retarders in ventilated attic, ventilated crawlspace, ventilated cathedral roof, and I understand that in cold climate I can place the Vapor barrier near the drywall (under insulation) in all these areas. And then I found on the […]

Hmq | Posted in General Questions on July 22, 2025 09:56am The attic has an HVAC system in the attic, There is insulation surrounding the unit and all throughout the floor boards in the attic The ceiling in the attic is not insulated so the attic is very hot. Is it advisable to insulate the […]