rdh-engineering / Green Building & Sustainable Home Renovation Information & Advice

R values and insulation performance
Efficient home design

Understanding thermal performance

First published in ecoHouse Canada The thermal performance of wall assemblies and insulation products has long been characterized using R-value, a metric which describes thermal resistance. While R-value is useful, it doesn’t tell the whole story about heat flow through building enclosures such as walls and roofs. Rece...