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. • ^ �r;nit No. <br /> / ��.3y�t „r,j �z�p*p�z. -t r x ��� f�r.;' 7 a n, t � t .. <br /> f �/ ' s�^a'�`�t���H,���"`�� £ #e ry t rf _3..�3�,'����,:.�"�x . `;.sfj4r�'F��T .�... . <br /> ��„'�at�F �,fi}�.A= h++�� . "�M . <br /> I . '�. x � > �_xn � ,. <br /> f< z� , �,x a�R �� u s� Use only for additwns, under 750 ft2, that don't compiy ,; ;V`J <br /> ` E� .���� �'��.7 �"�'�- <br /> Effedive July 1, �991 <br /> ,, , ,,, ,, ,;; , , , �i; . .&„ z.;, . <br /> �` .s,.. . .. d:�: >£:: ,, a„ . :'.:x , . -,.. .. . . <br /> ,.� Y��,.,z�',`��ra.��N,�.�r.�, �. ., ^ , m <br /> PURPOSE This worksheet demonstrates compliance for a <br /> proposed addition where heat loss improvements m the ezisting E x I S t I � g d w e I I f It g a n d <br /> home receive credit toward compliance. Pertorm a Chapter 5 �mProVet11211t U-V81UeS: <br /> calculalion only on the addifion before usmg this torm <br /> ., � �r� ���� Re�er to the 9991 W9EC, Chapter 10, <br /> _ ' '��''Ss s "' .; � . ' � �' ��, forall U-values notllsted below. <br /> ,..,...., <br /> ,...«: „ ,,. , <br /> MAIN WORKSHEET <br /> Existing (untested) plazlnp de/ault <br /> � PROPOSED CASE UA VALUE (pg• Z) values: <br /> � BASE CASE UA VALUE (pg• 2) Single pane U 120 <br /> Double pane �U .90 <br /> Addition heat loss�de(icit (bcr 1 minus G�x 2) Double pane w/vinyl <br /> ;� Existing dweliing improvement credit.See�&� <br /> or wood sas,i U .75 <br /> ADDITION COMPLIES IF BOX 4 IS GREA7ER THAN BOX 3 Existing building envelope values: <br /> �� ' �` f Ceiiings w/no insulation U .30 <br /> �-�Y,� t :�. � <br /> , ;£, , Floors w/no insulation U .13 <br /> ` " "" � � �Nalls wlno insulation U .31 <br /> Glass block U .60 <br /> I Ex�isting Dwslling(mprovement credlt • <br /> ` , calculatlons (List separate improvemenfs) ...<. > ... . .,:. •• <br /> I Area (Ft2) l�•Value UA INSPECTED <br /> ChanBe (l�cali�n) <br /> x U_ (a) <br /> Existing glazing (— 1 <br /> Rep!a�ement glazing( —1 X�_ (b� <br /> SUBTRACT(5j 1rom (a)I. ; (c) <br /> Existing home improvement credit , ,� ,� � ,,; s> - •, s, , �•F•. <br /> Existing glazing ( — <br /> --� x U_ (d) <br /> ' Replacement ylazing( 1 _ X�— �8� <br /> " SUBTRACT(e) Irom (d) ', (Q " `,3 . � : <br /> Existing home Improvement credlt °,� <br /> x U_ (9) <br /> Existing insulation(__-1 +�r ' <br /> . <br /> x U (h) fi^ <br /> New insulation (----� F Q' <br /> Sl18TRACT(h)Gom l9): 0) ,. ...�, �, r, y � � <br /> Exlsting home Improvement credR �,� ;�- <br /> Existing insulalion (._-----� <br /> x U_ G) <br /> New insulation( 1 X U— (k) <br /> SUBI'FACT(k)trbm (%) , ;II �_ <br /> Existing home improvement credlt . _...� �^.��s,���ti�,�,x�uovice�r,ca9� <br /> ` TOTAL CREDITS (Add c, l, i, & 1. Ir�sert into �on A1AIN WORKSrfEEn --- p��e_a ) <br />