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� y <br />C�H <br />�Hti <br />H�� <br />�t o <br />H� <br />��� <br />HN <br />�O� <br />OH <br />��g <br />�V n <br />t"y� <br />g�y <br />O�t�A <br />�H� <br />H O fn <br />� <br />� <br />� x a '� <br />� �>x::4't a -r �g'. <br />5 <br />�f • tl y R <br />. .x�a zr "� � � 2, � a <br />;. <br />Instructlons <br />No. <br />.�...�.__._. _ <br />Heat source: OTHER (gas, oii, propene, heat pumps), Zone 1 <br />EHective July 1, 1991 <br />Ovarvlew 7he Chapter 5 Approach allows any combination of bullding envelope components as long as the <br />collective heat loss doesn't exceed a maximum Ilmit established by code. The calculations on the lower part ol Ihis <br />page may be ignored H below grade wall Insulation will eilher be Rt9 on llie inlerior ar R10 exterfor, or N the <br />basemenl will not be a habitable space and unhealed, and the tloor above is insulated. <br />Pape 2, Base Case Dwellinp Calculatlon Compute areas using outer surlaces lor walls, ceilings (less skylights), <br />and iloors. Use the raugh iramed opening areas for doors. The glazing area is derived by multiplying a constant <br />value (.75) by the sum ol the conditioned iloor areas(Don't include unheated ariached garages, etc). <br />Pape 2, Proposed Dwelling Calculalion Compule areas using outer surtaces tor walls, ceilings, and tloors. Use Ihe <br />rough Iramed opening areas tor doors and glazing. Since there are only lour boxes on the fortn (or glazing, combine <br />the areas o( units with the same Uo value into a single enlry. WSEC, Chapter 10, delault values rrnist be used tor all <br />walls, ceilings, iloors, untested doors/glazing, and to determine below-grade walllslab UA. <br />BASE CASE Nf:ATLOSS <br />B.G. wall il1 �•.� f� (Ft2) x U <br />B.G. slab kt I GJK l�• F�) � x F. <br />B.G. wall i12 <br />B.G.slab #2 <br />(Ft2) x U _ _ <br />(L. Fi) x F� _ <br />TOTALCOLUMN —► <br />PROPOSED HEATLOSS <br />Use Chapter 10, page 81, U& F-values tor this caialation <br />and the same BASE CASE arealL. ft. measurements. <br />B.G. wall #1 �{G � (Ft2) <br />B.G. slab 81 �', -1'�i(L. Ft) <br />B.G. wall 112 <br />B.G.slab q2 <br />ej.• � <br />x F.�?L I = <br />(Ft2) x U._ - <br />d � (L. Fq x F�L = <br />°' TOTALCOLUMN <br />Table 1 (Below grade wall/slabs) ' - <br />2' depth: walls <br />slab <br />3.5' depth: walls <br />slab <br />7' deplh: walls <br />slab <br />Values <br />U.043 <br />F.69 <br />U.041 <br />F.64 <br />U.037 <br />F.57 <br />< /p�ylat d���� <br />2'_depth: walls U.070 <br />_ ,' slab F.60 <br />3.5' depth: walls U.Osd <br />slab F.57 <br />; � 7' depth: walls U.056 <br />'�;`-'': slab F.42 <br />('Deplh' indioa�os Ihe lotai eoncrete wall dopth <br />including not moro ihan 6• ol abovn grado <br />