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P nit No. <br />Eifective July 1, 1991 <br />' PURPOSE: This worksheet demonstrates compliance for a `� <br />; proposed addition where heat Ioss improvements in the existing E x i s t i n g d w e I I i n g 8 n d <br />home receive credit toward compliance. Perform a Chapter 5 <br />calculation only on the addition before using this form. impl'Ovemellt U-v8lues: <br />Aefer to the 1991 WSEC, ChapterYO, <br />MAIN WORKSHEET forallU•valcresnotllstedbelow. <br />���� <br />PROPOSED CASE UA VALUE (pg. 2) , j/, /� <br />BASE CASE UA VALUE (pg. 2J �, s <br />Addition heat los; de(icit (bc.r 7 mrnus box 2) -�.. <br />Existing dwelling improvement credit. See�&� �, <br />ADDITlON CO;VIPLIES IF BOX 4 IS GREATER THAN BOX 3 <br />Dwelling improvement credit <br />ons (Lisf separate improvements) <br />;hange (lac3iiQn) Area (Ft2) <br />Existing glazing (� ) <br />Replacement glazing �_) <br />Existing home Improvemen�redit <br />Existing giazing ( <br />Replacement glazing ( ) <br />Exlsting home Improvement credlt <br />Existing insulation ( ) <br />New insulation i ) <br />Existing home Improvement <br />Existing insulation ( <br />New insulalion <br />U•Vaiue <br />x U_ <br />x U_ <br />Ixu— <br />�� <br />SUBTRACT (h) lrom (g) ', <br />x U_ <br />x U_ <br />Exlsting home Improvement credit I """���' �^� "�"„ �� <br />TOTAL CREDITS (Add c, l, i, & 1. Insert into �on MAIN WORKSHEE� <br />Exlsting (untested) glazing default <br />values: <br />Single pane U 1.20 <br />Double pane � U .90 <br />Double pane w/vinyl <br />or wood sash U .75 <br />Exlsting buliding envelope values: <br />Ceilings w/no insulation U .30 <br />Floors w/no insulatic n U.13 <br />Walls w/no insul2.ti�n U .31 <br />Glass block U .60 <br />��w <br />I UA INSPECTED <br />(a) <br />(b) <br />(c) <br />lEES�I30W MAN NObElAEILR 91 <br />Pa�e 2a <br />e <br />