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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 />
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