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�rmit No. _ _ _ _ <br /> - - _- -._ _... ._ ---- - <br /> . :, . �, • �; „ ,, ,� �,� ,�1.�,�"+ `�.� <br /> � , . ����,� <br /> U�e only for additlons, under 750 tt2, that don't comply = E��� ; ���r. �'`�'�• ' <br /> �. � ..E�-�� �, �.� ��.M-�� <br /> � Elieciive July 1, 1991 <br /> PURPOSE: This worksheet demonsirates compliance lor a � <br /> proposed addition where heat loss improvemenis in Ihe existing � x I s t I n g d w e I I I n g A I1 d <br /> home receive credit toward compliance. Perform a Chapter 5 <br /> calculation only on the addition belore using this form. ImpfOV@m8�t U-V81UBS: <br /> Reler to the 1981 WSEC, Chapter 1G, <br /> lor all U-values not Ilsted bel�w. <br /> MAIN WORKSHEET <br /> Exlatlnp (unteated) glaring defaulf <br /> PROPOSED CASE UA VALUE (pg. 2) values: <br /> BASE CASE UA VALUE (pg. 2) Singie pane U 120 <br /> Addltinn heat loss delic(1 (box f minus box 2J Double pane U .90 <br /> Double pane w/o�inyl <br /> Existing dwelling Impiovement Credit. Seo�&� or wood sash U .75 <br /> ADDITION COMPLIES IF BOX 4 IS GREATER THAN BOX 3 Exlsflnp bulldlnp envelope values: <br /> Ceilings w/n� insulatlon U .30 <br /> Floors w/no Insulalion U .13 <br /> Walls w/no Insulation U .31 <br /> Exmisting Dwelling Improvement credit Glass block u .so <br /> calculatlons (List separate improvementsJ <br /> Chenge (lQnatinn) Area (Ft2) U-Value UA INS?ECTED <br /> Ex(sting glaaing ( ) x U._ (a) <br /> Replacement glazing ( ) x U_ (b) <br /> Exlsting home Improvement credit SUBTRACT(b) fiom .(a) ��� <br /> Existin6 glazing ( ) z U_ (d) <br /> Replacement glazing ( —) x U— (e)_ <br /> Ezlstlnp home improvement credit SUHTRACT{e) from (d) — ��� <br /> ExisUng Insulatlon ( ) x U_. (9) <br /> New insulatlon ( ) x U_ (h) <br /> Exlsting home Improvement credlt SUBTRACT(h) Irom (g) (1) <br /> Existing insulatio�� ( ) x U.— (U <br /> New InsulaUon (_ —) x U__ (k) <br /> Exlsting home Improvement credlt SUBTRAC7(k)lrom Q) ��� <br /> TOTAL CREDITS (ndd c, r, i, & I. Insert into �an MAIN WOHKSHFET) <br /> WkE6�AOWIAA�CNOVP.Alf3Gfl 91 <br /> Pa�e 2a <br />