|
��_ - . _ . . --- ._ _ .��
<br /> '�� "'ermit No. �
<br /> ;: ,:... ..: , .
<br /> ;�, > �
<br /> ° Heat source: ELECTRIC (except heat pumps), Zone 1 ,� •
<br /> Instructions Eftective July 1, 1991
<br /> Overvlew The Chapter 5 Approach allows any combination oi building envelope components as Iono as the
<br /> collective heat loss doesn't exceed a maximum limit estabiished by code. The calculations on the lower part of this
<br /> page may be ignored if below grade wall insulation will eiiher be R19 on the interior or R10 e�erior, cr if tr,e
<br /> basement will not be a habitable space and unheated, and the iloor above is insulated.
<br /> Page 2, Base Case Dwelling Calculatlon Compute areas using outer surtaces for walls, ceilings (less skylights),
<br /> and flo�rs. Use the rough framed open!i ig areas for doors. The glazing area is derived by multiplying a constant
<br /> value (.15) by the sum of the conditioned floor areas(Don't include unheated attached g�•ages, etc).
<br /> Page 2, Proposed Dweiling Calculatlon Compute areas using outer surtaces tor walis, ceilings, and floors. Use the
<br /> rough framed opening areas �or doors and glazing. Since there are only four boxes on the form for giazing, combine
<br /> the areas of units with the same Uo value into a single entry. WSEC, Ct,aptar 10, de(auit values must be used for ali
<br /> walls, ceilings, floors, untested doors/glazing, and to determine beloe�-grade walVslab UA,
<br /> The Proposed Dwelling complys If ihethe Proposed UA doesn't exceed the Base Case UA.
<br /> Transfer wail, celling, floor, giazing, and door values(R and U) to the CheckllsL
<br /> —___ _--_._..__ --- --- --- —-------- �
<br /> Method,G (below-gr�de wal!/slab heat-IossYt :offsJ
<br /> ��1. For each ri�all ttiat ditreis in depth, perform a seperate calculation usina Steps 2 &3. Sun� :iie tota3s.
<br /> 2. Determine wall arE� frcm 1he 512b ssirface to the fop uf the mud SiII.�Exclude deor arid giazing are�:s and insert
<br /> I them i�to ;he desi naied (�oxes be�o�.v for both Base case and Pro osed heailoss.
<br /> 3. Find,the �-ppropri;:te �::ali daptf�s in Table 7 and insert,the corro°pondin^y �.�.ai1 vaft;��s irto tf:e �a,e case box(cs).
<br /> Ivluitiply tVte cerresponding wa�l t1-val�e Ly the area oerwed in�tep +�1. .
<br /> 4. Measu re tne perim�ter distance in linPa!feet for each slzb under a�:�ail with a diflerant Table 1 depth. Insert t#ie
<br /> slab I- value irorn l�ab!z 1 corresponding fo each wail listed in Sfep 't3.
<br /> — BASF C,dSE HE,4TLOSS -'
<br /> B.G. wail #1 (Ft2) x U_ = Table '1 (Below grade wall/slabs)
<br /> ' B.G. siab#1 (L. Fq x F_ = Ipsulated In[erlor wall Values
<br /> B.G. wall #2 (Ft2) x U_ = 2' depth: walls U.043
<br /> " B.G. slab #2 (L. Ft) x F_ = slab F.69
<br /> 3.5'depth: walls U.041
<br /> TOTAL COLUMN --► sla6 F.64
<br /> —-� 7' depth: walls U.037
<br /> PROPOSED HEATLOSS slab F.57
<br /> Use Chapter 10, page 81, U & F-values tor this calculation Insulated exterlor wail !
<br /> i and the same BASE CASE area/L. ft. measurements. i
<br /> 1
<br /> B.G. wall#1 (Ft2 x U_ _ � 2'depth: walls U.070
<br /> 1 slab F.60 "`
<br /> B.G. slab#1 (L. Ft) x F_ _
<br /> 3.5'depth: walls U.064
<br /> slab F.57
<br /> � B.G. wall #2 (Ft2) x U_ = 7' depth: wal/s U.056
<br /> slab F.42
<br /> ' B.G. slab #2 (L. Ft) X F_ _ (•Depth'indicatos�ho total conc.ete wall deplh
<br /> cr�ts��ucrr,�a��:io�easi TOTAL COLUMN including not more than 6' ol above grade
<br /> `Page 1
<br /> I
<br /> ;_::�.�,.:_:,. , . J
<br /> �_.
<br /> .-.. � �,.:
<br /> :_�.,:�_ � :. -- . ..
<br /> �
<br /> ,...ay�;� . . ,t:._.,. ,..-�. ._ ..__ �.� _._�,,, < s r..,-, .
<br /> '.s vM . . �. _�; �. r..-'�
<br /> �a „-^.-. � ._ ;...,:_. _ .. , .
<br /> -. .. -. .. :. .._ �_:
<br /> .. � - I_��._. �`�- ,..:.. .� _. . _ ._ '
<br /> .� . ..� ' _ .. _.
<br /> ._ . _.:.... � �__ .,� - - .. -_, :�� . . _._ _. .
<br /> -.._-�.w-.�-- .-. . _ . . . T�� _ "` ' - -
<br /> r=
<br /> .. �-=' - ,..:.-..:....,_-�.....:...:w' tiC^ t�;�♦. _ .-�:
<br /> �
<br /> �^ :� .._�� -
<br /> - _ —__, ..._,.�
<br /> .' ^- ...� ....�.�..._. ..�.,..,-....� -..�.— _' _
<br />
|