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. , ELEYENT INS�(.t�T�O i�.X�� <br /> 'SKETCH OF ELE�IENT , <br /> / $u�I,-.,�PP-��° <br /> WTSfD�kiR �t��Vl �•II INSvG i <br /> ,` � <br /> �" w�on � INy�t� ��� ��c�vi <br /> Material Thickness R-Vaiue R-Value R-Vdue <br /> (inches) Per Inch golid Cavity <br /> �v��� �� . �� <br /> INhIG� ��� . hg� <br /> p�v��TvP - ,33 <br /> �I I (pL.�'(1C,4710N � � _ <br /> �/,a��� WcGr� � 1`b <br /> Sum of R-Values �� q� <br /> :i�>`� " " <br /> U= t/R ��/7 = ' <br /> I I � �4�iA�. :�,�, ;� <br /> x � <br /> " Framing Ratio ��_ �rt: : <br /> .� � :� <br /> Solid U-Yalue X a) �• ,'a� ` s` <br /> Framing Ratio <br /> x.. .. <br /> S• <br /> U= 1/R r�<�' w `.,R��i <br /> z, `4� .n�y�V�ti <br /> �r <br /> 1`�.A��£,��� <br /> 1-Framing Ratio �: � -� �� �, <br /> �: . m" .,"V,.' <br /> CavitY U-Value X ;,� �) <br /> (1-Framing Ratla) *� , �r•�, �L) <br /> San of Adjuated U-Valuea (a + b) � (�77 <br /> Ma of Eiement� I� ��� <br /> IV�t Area After Op�ninys Such as Dsors, / <br /> Windo�n. and SlcylFyhts Have B�an SuOtractsd <br /> ��I� Y���K�s = 12a �F W/v �i���� �t-- (,9-0 <br />