BTW<br>Has anyone got info on how I'd use esp-r to calculate the thermal lag of a construction?<br>thanks<br>Pat<br clear="all"><br>-- <br>"Government is not reason, it is not eloquence, it is force; like fire, a troublesome servant and a fearful master. Never for a moment should it be left to irresponsible action."
<br>-- George Washington<br>(1732-1799) Founding Father, 1st US President, 'Father of the Country'<br>Source: in a speech of January 7, 1790