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'ermit No. <br /> �----.... <br /> ___....._ _. ... .. ...___... ___ <br /> __ . . __. _ _ __ - - ------- <br /> j . � . .. , . .. . :s•� • , . . , .. . . • . , � r . � �,i . ."r� , _ <br /> i : .a . � '. '.: .' � . .. . . <br /> I Use only for additions, under 750 ft2, that don't comply� . � <br /> `�.._.._..�_.._______—._........__..._.___..__.__ ....._._.._...........—...._.._..._.__....._..................__._..___._........_....._....._.W._.. <br /> Efledive July 1, �[•�t <br /> PURPOSE: This worksheel demonstrates compliance for a � <br /> proposed addition where heat Icss Improvemenis in the existin9 E X I S t I f1 g d W e I I I f1 g a � d <br /> home receive credit toward compliance. Perform a Chapter , <br /> catculation only vn the addrro�, bero�e us�nq ir,�s �o�m improvement U-values: <br /> Aeler to fhe 1991 WSEC, Chapter f0, <br /> lor a!1 U•velues not flsted below. <br /> MAIN WORKSHEET <br /> [xlsfing (untested) glazlnp default <br /> � PROPOSED CASE UA VALUE (pg. 2J values: <br /> BASE CASE UA VALUE (pg. 2) Single pane U 1.20 <br /> Additinn heat loss delicit (box 1 minus box 2J Double pane U .90 <br /> Double pane w/vinyl <br /> � Ezisting dwelling improvement credit. See�B� or wood sash U .75 <br /> ADDITION COMPLIES IF BOX 4 IS GREATER 7HAN BOX 3 Exlsfing bulldJng envelope values: <br /> Ceilings w/no insulatfon U .30 <br /> Floors w/no insulatlon U .13 <br /> Walls�'�/no Insulation U .31 <br /> Emting Dwelling Improvement credit Glass block u .so <br /> calcu/etlons (List separale improvementsJ <br /> ChanQe (I�CaliQn) • Aree (Ft2) U-Value UA INSPECTED <br /> Exlsting glazing ( ) x U__ (a) <br /> ` Replacemerl glazing ( ) x U___ (b) <br /> ExlsUng home Improvement credit SUBTRACT(bJ lrom.(aJ ��� <br /> _ . � <br /> Exisling glazing ( __) x U_. (d) <br /> Replacement glazing ( ) x U_ (e) <br /> Existing home Improvement credit SUBTRACT(e) lrom (d) ��� <br /> Existing Insulation ( ) x U____ (g) <br /> New insulation ( ) X �— (�'1 <br /> Exlstlnp home Improvement credit SUBTRACT(h) lrom (g) (1) <br /> ----- <br /> Existing insulation ( ) x U___ (I) <br /> New insulation ( ) x U___ (k) <br /> E�dsUng home Improvement credlt � SURTRACT(k) lrnm Q) (�� <br /> TOTAL CREDITS (Add r„ 1, i, & I. Inseh in�o aan MAIN WORI<SIIEFTJ Wre�i3o;vM,n�i�r�ovr.��nr.r��i <br /> paE�r, 2a <br />