ins.GDF said:How is ambient temperature change calculated?I'm trying to determine if an expansion fitting is required for a run of RNC.Is there a formula,or is it simply the differece between daily temp.changes?seasonal changes?
ins.GDF said:Frank,I understand that temperature change influences the tabular amount of expansion/contraction,but how is the change derived?
weather.comins.GDF said:...but how is the change derived?