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Step #2: Calculato the enerny savings of upgrades to the oxistion dwelling, apply the credits <br />toward compliance in the addit,_,i, and demonstrate compliance. <br />PURPOSE: This worksheet demonstrates compliaDnproposed <br />addition whereheal loss Improvements in th%' <br />`.-,iF <br />Existing dwelling and <br />home receive credit toward compliance. Perform a <br />calculation only on the addition before using this form.Improvement <br />U-val jes: <br />Refer to the 1991 W iEC, Chapter 10, <br />for all U•values not listed below. <br />MAIN WORKSHEET <br />Exlsting (untested) glazing default <br />PROPOSED CASE UA VALUE (pg. 2) <br />values: <br />Single pane U 1.20 <br />9 P� <br />Double pane U .90 <br />BASE CASE UA VALUE (pg. 2) <br />Addition heat loss deficit (box 1 minus box 2) <br />Double pane w/vinyl <br />eExisting dwelling improvement credit. SeeW&W <br />or wood sash U .75 <br />Existing building envelope values: <br />Ceilings w/no insulation U .30 <br />ADDITION COMPLIES IF BOX 4 IS GREATER THAN BOX 3 <br />Floors w/no Insulation U <br />ms <br />.13 <br />Walls w/no insulation U .31 <br />Existing Dwelling Improvement credit ° <br />Glass block u so <br />calculations (List separate improvements) <br />Change (location) <br />Area (Fl2) <br />U•Value <br />UA <br />INSPECTED <br />Existing glazing I-) <br />x U_ <br />(a) <br />Replacement glazing ( ) <br />x U_ <br />(b) <br />Existing home Improvement credit <br />SUBTRACT (b) from (a) <br />(c) <br />Existing glazing I-) <br />x U_ <br />(d) <br />` <br />Replacement glazing ( 1 <br />x U_ <br />(e)s' <br />Existing home Improvement credit <br />SUBTRACT (e) from (d) <br />(f) <br />Existing Insulation ( ) <br />x U_ <br />(g) <br />New Insulation I-) <br />x U_ <br />(h) <br />Existing home Improvement credit <br />SUBTRACT (h� from (g) <br />Q <br />Existing Insulation ( ) <br />x U_ <br />(j) <br />? New insulation I-) <br />x U_ <br />(k) <br />Existing home Improvement credit <br />SUBTRACT (k)lrom' U) <br />(I) <br />TOTAL CREDITS (Add c, f, I, & I. Insert into <br />�on MAIN WORKSHEEI) <br />wsmowtivwr{ovrum esi <br />Page 2a J <br />