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Pe�mit No. <br />Use only for additions, under 750 ft2, that don't c mply <br />NURPOSE: This worksheet demonstrates compliance for a <br />proposed addition where heat ioss imprcvemenis in ihe existing <br />home receive credit toward compliance. Pertorm a Chapter 5 <br />caiculation unly on the addition betore using this form. <br />�_ <br />MAIN WORKSHEET <br />� PROPOSED CASE UA VALUE (pg. 2) ��� <br />I BASE CASE UA VALUE (pg, 2) � 4, � <br />Add(ti•�n heat loss deficit (box 1 minus box 2) -�:�� <br />IExisting dwelling improvement credit. Sae�&� a 5�. 8 <br />ADDITION COMPLIES fF BOX 41S GREATER THAN BOX 3 <br />r rxrsting Dwelling improvement credit <br />> ca/culatJons (List separate improvementsJ <br />Change (�o .ation) . Area,(Ft2) <br />' Lxisting giazing ( � <br />Replacement giazing ( � <br />Exlsting i�ome Improvement credit SUBTRA.E <br />Existing giazing (liil _� <br />307 <br />Repiacement glazing ( f4l l ) 30 �^ <br />Existing home Improvement credit 'SUBTRAC <br />Existing insulation ( � <br />New insulation (__ � <br />Extsting home Improvement credit <br />Existing insulation (�_ <br />New (nsulation (__ � <br />U-Value <br />xU__ ' <br />x l,_ <br />ironi (aj ; ; <br />x U�-n <br />x U �37 <br />'rom, jd) <br />x U_ <br />x U_ <br />aint(91 <br />, >.,: <br />X U_ <br />x U_ <br />ExlsHng home Improvement credit I SUBTRACT �x) /�pM U� <br />TQTqL CREDITS (Add c, I, i, & L lnsert into �on MAIn� WORKSHEE'� <br />Effective July 1, iggi <br />Exlsting dwelltng and <br />improvement U-values: <br />Referto the 1991 WSEC, Chapter f0, <br />for all U•values not llsted below. <br />Exlstlnp (untested) glazlnq default <br />values: <br />Single pane <br />Double pane <br />Double pane w/vinyl <br />or wood sash <br />U 1.20 <br />U .90 <br />U .75 <br />Exlsting bulldlc� envelope values: <br />Ceiiings w/no insulation U .30 <br />Floors w/no insutation U .13 <br />Walls w/no insulation U .31 <br />Glass block U .60 <br />�....���� <br />UA INSPECTED <br />(a) <br />(b) <br />(�J <br />(d) 3�� •.K <br />�e) J l��(� <br />(�l ' <br />(9) <br />(h) <br />(�I " <br />(I) <br />(k) <br />(/) <br />a 5y-. 8 Iw�s,a�xvxo. :.•:nru�-.9ti ; <br />� ' _ ' PaSe 2a. : <br />� <br />