Featured Articles
“Humidité et polystyrene,” in French; “Moisture Absorption in Polystyrene Insulation: Effect of service design R-values,” English translation.
By John Woestman, Director of Codes and Standars, XPSA FORMES, Print edition: FORMES, Volume 18, Number 1 (May 2022).
“Extruded polystyrene in protected membrane roof assemblies”
By John Woestman, Director of Codes and Standards, XPSA, Construction Canada
“Extruded Polystyrene in Protected Membrane Roof Assemblies”
By John Woestman, Director of Codes and Standards, XPSA, The Construction Specifier
Moisture Absorption in Polystyrene Insulation: Effects on In-Service Design R-Values
By John Woestman, Director of Codes and Standards, XPSA, IIBEC Interface
XPS Delivers High R-values in Below-grade Applications
By John Woestman, Director of Codes and Standards, XPSA, The Construction Specifier