Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What is the conversion from US (imperial) to European (metric) units for the U-factor?

April 26, 2017conversion European Imperial metric u-factor units

0

Posted

What is the conversion from US (imperial) to European (metric) units for the U-factor?

1 Answer

1

Posted

To convert the U-factor from English to SI units, multiply the English number by 5.678. For example, If U=0.35 Btu/hr-sf-°F in English units, then 0.35*5.678 = 1.9873. The U-factor in SI units will be 1.9873 W/m²K. The SHGC is dimensionless so it has the same value in both systems.