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----------. .. rmif Na — <br /> � ... ,. -- — r � r �: � 'l <br /> � 'Use only for additions, under 750 ft2, that don't comply '� <br /> Effedive July 1, 1gg1 <br /> PURPOSE: This worksheet demonstrales compliance for a � <br /> proposed addition where heat Ioss improvemenis in the ezisting <br /> home receive credit toward compliance. Perform a Chapter 5 E x i s t i n g �w e I I I � g a � d <br /> calculation only on !he addition before using lhis form. ilTlpl'OV2t71a�i U-VelUOS: <br /> Ae/er fo the 1991 WSEC, Chapter 10, <br /> MAIN WORKSHEET lorall U•values not Ilsted below. <br /> � PROPOSED CASE UA VALUE (pg. 2) � Exlsting (untested) glazing de/ault <br /> , i a. I� values: <br /> � BASE CASE UA V:�LUE (pg. 2) � ; 1� <br /> Single pane U 1.20 <br /> Additinn heat loss delicit (box 1 minus box 2J .{J�,� Double pane U .90 <br /> ; � Existing dwelting improvement credii. See�&� �ouble pane w/vinyi <br /> �7. '� or wood sash U J5 <br /> ADDITION COMPLIES IF BOX 4 IS GREATER THAN BOX 3 <br /> Exlsting bullding envelope values: <br /> Ceilings v,�/no insulation U .3G <br /> ` � Floors w/no insulation U .13 <br /> Existing Dwelling improvement credit c ass bi ckinsulation u .3� <br /> U .60 <br /> calculations (List separate improvementsJ � <br /> Change pncatiQp) . Area (F12) U•Vaiue UA INSPECTED <br /> ' Existing glazing (— — ) x U_ (a) . <br /> Replacement glazing ( _) x U_ (b) <br /> Exlsting home Improvement credit SUBTRACT(b) !rom,(aj ��� <br /> i Existing glazing ( ) x U (d) <br /> : ReplacEment glazing ( � X �_ `�� <br /> Exlsting home Improvement credlt SUBTRACT(e) lrom (d) ��� <br /> Existing insulation ( 3 �� � � ; � > x U �-� (9) i y�J <br /> New insulation ( -- c�' � i c � -' x U. �'='c� (h) �g <br /> Existing home Improvement credlt SUBTRACT(h) lrom (gJ ��� ,� <br /> Existing insulation ( � x �_ �.) <br /> New insulation ( ) x U_ pc) <br /> Existing home improvement cretlit SUf3TRACT(k) lrom Q) ��� <br /> TOT.4L CREDlTS (Add c, l, i, & I. Inser, into �cn iv1�11N l�✓ORKSHEc�J 57 w�.F,i�ov;r.an��rdovr:F+��Ea9, <br /> — -- ---- Pac�e 2a J <br />