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- � �ermit No. <br /> l s * a � t � � va i@+N� 1�7 i'�`t �C� 4 <br /> �� F f'ot F j�� Se�e {�: ��� ej rA 1 y1 r� �' ��13� �f�i�F'�� F $£�: � t <br /> ,f . Z,,.4�l� �. .�a <br /> . <br /> . , .�.. " . '" <br /> - v <br /> �.. ,. , y. � ' <br /> ' .� .�.....a. . . . . ... . � . <br /> Use only for additions, under 750 ft2, that don't comply <br /> � <br /> [(tedive July 1, 1991 <br /> PURPOSE: This worksheet demonstrates compliance tor a , � <br /> proposed addition where heat loss Improvemenls in the existing E X 1 S t 1 fl g d W e I I I f1 g 8 n d <br /> home receive credit toward compliance. Perform a Chapter 5 impl'OVetiletlt U-VTIUeS: <br /> calculation onty on the addition before using this torm. <br /> Refer to the Y991 WSEC, Chapter 70, <br /> for aI!U•values not listed belovi <br /> MAIN WORKSHEET <br /> Exlsting (untestea; glazl.:g detauif <br /> � PROPOSED CASE UA VALUE (pg. 2) ��,� ) ' values: <br /> � BASE CASE UA VALUE (pg. 2) G•9�/r Sinc�le pane U 1.20 <br /> Addition heat loss deticit (be.r 1 minus box 2) � ' � - Double pane 'U .90 <br /> � Dou.ble pane w/vinyl <br /> � Existing dwelling improvement crediL See�&� 7lG orwood sash U J5 • <br /> ADDITION COMPLIES IF BOX 41S GREATER THAN BOX 3 Exlsting bullding envelope values: <br /> Ceilings w/no insulation U .30 <br /> i <br /> Floors w/no insulation U .13 <br /> , Walls w/no insulation U .31 <br /> Ex�isting Dwell�nq improvement credit Giass biock u .so <br /> calculatlons (L': . separate improvements) <br /> Change (loLatinII) Area (F12) U-Vaiue UA INSPECTED <br /> Existing glazing ( `;�r.��'' D��) x UlJdJ (a) _p . �p0 <br /> Replacement glazing � - ) ����'i x U�✓`� (b) ���, � <br /> ' Exlsting home Improvement credit SUBi'RAG7(bf Irom (a) • ' ' (c) �j� <br /> ? Existing glazing ( ) x U_ (d) <br /> Replacement glazing ( ) X�— �e� <br /> Existing home Improvement credit SU6TR.4CT(eJ frorri (tl). (�� <br /> Existing insulation ( ) <br /> x U._ (9) <br /> New insulation ( ) <br /> x U_ (h) <br /> ' Existing home Improvement credlt SUBTFACT(1�) lrom (g) ",. (q <br /> ° Existing insulation ( ) <br /> x U._ (D x '' <br /> ' New insulation ( ) x U_ (k) _ <br /> ExlsUng home improvement credil SU6TRACT(k)f�om QJ ; ��� <br /> TOTAL CREDITS (Add c, I, i, & I. Insert into �on MAIN WORKSHEEn <br /> w��:;�3owf.�nri�io��r:�+o�a e, <br /> Page 2a <br />