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-- ------ --.....------_�. "ermi� No. <br /> � � ,� . : ' I - . il�.; '� ' :. , : � �, ,. I'...�_ '. ..�. • I <br /> " ` � Neat source: OTHER <br /> :s.��< �< ;;. � (gas, oil, propane, hent pumps), Zone 1 I <br /> — -�-�- __...._.__..__W.....__._..._.- _-/ <br /> lnstructions ���,�� ,� ���y ,, ,s,, <br /> Overview The Chapter 5 Approach allows any combination ol bullding envelope componenls as long as the <br /> collective heat loss doesn't exceed a maximum Iimit established by cude. The calculations on the lower part ol thls <br /> page may be ignored fl belcw grade wall insulation wlll eRher be R19 on the fnterior or R10 axterior, or H�he <br /> basement wlil not be a habkable space and unheated, and the iloor above is Insulated. <br /> Pape 2, 8a9e Ceae Dwelllnp Caiculatlon Compute areas using outer suAaces lor walls, ceflings (less skylfghts), <br /> end floors. Use the rough Iramed opening areas (or doors. 1 he glazing area is derived by multiplying a constant <br /> value (.15) by the sum oi the condltioned Iloor areas(Don't includo unheated attached garages, etc). <br /> Pape 2, Proposed Dwelllnp Calculation Compute areas using outer surtaces lor walls, ceilings, and iloors. Use the <br /> rough Iramed opening areas for doors and glazing. Since there are only four bozes on the form lor glazing, combine <br /> the areas of unils with the same Uo value Into a single entry. WSEC, Chapter 10,default values must be used ior all <br /> walls, ceilings, Iloors, untested doors/glazing, and to determine below•grade walVslab UA. <br /> �he Proposed Dwelling com I s If the the Proposed UA doesn't exceed the Base Case UA. <br /> Transldr well,ceIIInO, fioor, glezing, end door values (R end U) to the Check Ilst. � <br /> PY <br /> ---- <br /> —__--- -- --- -- ----- - <br /> ------ __._---__ _. _._....------._.------- <br /> --- --------___......._.. _ -- ---� <br /> -...._..--. __ ____—___......_--- ..._..--------.._..--...._.... ._—___.__ <br /> Method A (be/ow-grade wall/slab heat-loss tradeoffs) <br /> 1. For each wall lhal diflers in depih, perlorm a seperate calculation using Sleps 2 & 3. Sum the lotals. <br /> 2. Delerrttine wali ar�a from the sla�srAar�e to fhe top of the mud Aill. Exclu�e d or and glazing areas and Insen <br /> Ihem into the designaled boxes e ow or twth Base case and Proposetl I,eal�ss. <br /> 3. in theapp ropriate waII depll in 7able 1 and insert Ih�c rre5pondinq wall values into Ihe F3ase case box(es). <br /> u ip�y �ng cOrresponding wa�l�li-value by Ihe area denve�in Step p 1. - <br /> 4. �ea&ure he perime tgr distance in line?r feet lor each blab U�d�r a WaII wilh a different Table 1 deplh. Insart the <br /> slab F-va�ue trom Tablo 1 corresponding to each wall listed �n Slep t73. <br /> 9ASE CASE HEATLOSS -- <br /> B.G. wall k1 (Ft2) x U_. = Table 1 �oelow grade waluslabs) <br /> B.G. slab q1 (L Ft) x F_ � <br /> l:1Su/Eled�dl@f/QLjy9/l Values <br /> B.G. wall #2 (FI2) x L'_ � <br /> 2' depih: we75 U.043 <br /> E3 G. slab N2 (L F�) x f_ = slab F.69 <br /> 3.5'depih: walls U.041 <br /> TOTAL COLUMN ..� slab F.64 <br /> 7'deplh: walls U.037 <br /> PROPOS.F.DHEA .TLOSS slab F.57 <br /> I Use Chapter 10, page 81, U & F-values(or fhis calculation <br /> and the same BASE CASE area/L. It. measuremen!s. Insulated�Xtetlor�vall <br /> B.G. wall Nt (�t2� X �i � 2' depih: walls U.070 <br /> slab F.60 <br /> B.G. slab #1 (L. FI) x F_ � :� 5'depth: walls U.00vt <br /> B G. wall #2 slab F.57 <br /> (Ft2) x U__ � 7'deplh: walls U.05F, <br /> [3.G. slab k2 (L FQ x F__ = slab FA2 <br /> Y.�c:.u;,�,v ��.iR:ii,.� �vi — ('Dnpih•lndlqolos:ho total concrole w;di A,�Pth <br /> ���� 1 TOTA� OQLUMN ui�.luAuiy nai more Ihan 6• of ebovo 9rndo <br />