{TAIL ~ The thermal resistance} of {HEAD ~ the insulation} is determined from the known cavity depth and insulation density 
{ TAIL ~ The thermal resistance } of { HEAD ~ the insulation } is determined from the known cavity depth and insulation density
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH