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Mechanical Analysis Blog

Posts tagged with 'Cavity Wall'

17 Feb, 2010

Robin Bornoff 100mm block, 50mm insulation, 50mm cavity air gap then 100mm block make up an external wall that in theory comply with a building regulation overall wall U-Value of 0.3 (W/m^2K). This got me thinking about the 50mm air gap. Why 50mm? What if it was 75mm or 10mm? Stagnant air is a great insulator, a small gap would tend to stagnate the air and might improve, reduce, the overall U-Value. A large gap would … Read More

CFD, FloVENT, Cavity Wall, HVAC, U-Value

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