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Q <br />Heat <br />Permit No. <br />heat pumps), Zone 1 <br />Instructions � �AN 0� 199� U Ettective July 1, �ss� <br />Overvlew The Chapter 5 Approach allo ynnnoombination ol•building envelope componenis as long as the <br />collective heal loss doesn't exceed a m��Fm����i s�ied by code. The caiculalions on the lower part of th(s <br />page may be ignored it below grade wal i�fi��v�ifl�� be R19 on the interior or R10 exterior, or'rf the <br />basemenl will not be a habitable space and unheated, and the (loor above is insulated. <br />Page 2, Base Case Dwelling Celculation Compute areas using outer surtaces tor walls, ceiiings {less skylighls), <br />and tloors. Use the rough iramed opening areas tor doors. The giazing area is derived by multipiying a constant <br />value (.15) by the sum o( the conditioned iloor areas(Don't include unheated attached garages, etc). <br />Page 2, Proposed DweIIInB Calculation Compute areas using outer surtaces tor walls, ceilings, and iloors. Use lhe <br />rough tramed opening areas for doors and glazing. Since there are only four boxes on the torm tor glazing, combine <br />the areas of unils with the same Uo value into a singie entry. WSEC, Chapler 10, default values must be used tor all <br />walis, ceilings, tloors, untested doors/giazing, and to determine beiow-grade walUslab UA. <br />BASE CASE HEATLOSS ' ' ' "� <br />B.G. wall #1 (Fi2) x U_ = b.� <br />B.G. siab #t (L. Fq x F_ = V-�` <br />B.G. wall #2 (F12) x U _ _ <br />B.G. slab h'2 (L. Ft) x F_ _ <br />„ .f TOTALCOLUMN —! <br />PROPOSED IiEATLOSS <br />Use Chapter 10, page 81, U& F-values for this calculation <br />and the same BASE CASE area/L. fl. measurements. <br />B.G. wall �it <br />B.G. slab #1 <br />B.G. wall #2 <br />B.G. siab N2 <br />(Ft2) x U_ _ <br />(L. Ft) x F_ _ <br />(Ft2) x U_ _ <br />(L. Ft) X r-_ _ <br />TOTALCOLUMN <br />Table 1 (Beiow grade walVsiabs) <br />Incrdated Interior wall Values <br />2' depth: walls U.043 <br />slab F.69 <br />3.5' depth: walls U.041 <br />slab F.64 <br />7' depth: walls U.037 <br />slab F.57 <br />l�S11/att�d �xterlorw^!f <br />� ;� , 2' depih: walls U.070 <br />slab F.60 <br />, ' , 3.5' depih: walls U.064 <br />• L' slab F.57 <br />� �.�' 7' depth: walls U.056 <br />— slab F.42 <br />('Doptli indicatos tho lotal concroto wall dopth <br />including not more Ihan G' ol abovo gradu <br />