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1 <br /> � <br /> � <br />� � � � � <br /> , <br /> m � x <br /> C9 H <br /> t" y f/� <br /> H �� � <br /> r< O <br /> H xl <br /> "�� H "��tl 1 • I t . � � • • � � <br /> CA H <br /> H t" <br /> oy d For lhis worksheet consider the tollowing prescriptive requirements: <br /> H � g O Slab insulation R-10 O Below qrade walis R-10 exterior or R-19 interior O S�ndard infiltation control <br /> �" � If you choose to use an alternate to the above prescriptive requirements,contact your jurisdiction for information on compliance tor <br /> z y� the Component Pedormanoe Approach,Chapter 5. <br /> � H y BUILDING COMPONENi COLUMN <br /> m <br /> � b �' The buildinp componeM coiumn includes several iistinps tor each rype ot com9onent so that components with ditterent U•velues <br /> � t� t� may be listed sepa2tely. A detailed cross section of each of the wall,ceil�np and floor huildinp wmponents should be provided on <br /> z y y the plans ar,A the U-��alue and R-values of each element in the assembly shown. <br /> H o [n I ��. .. .. <br /> Q PROPOSED GROSS AREA: O PHOPOSEU U•VALUE , � <br /> Determine the gross(total)area tor each huiltling compo• Determine the total U-value ot each building componen[ �; <br /> nent znd record in column A The gross area and the net assembly and re',ord in column F. 7he default U•values for <br /> arca are the same tor the windows,doors,skylights and Default U values trom the State Ene�gy Officeel-800n962C <br /> iloors. 9737 The U-value is the inverse of the R-value. <br /> O PHOPOSED NEf ARFA: Q REUUIREO UA: <br /> D:'�rmine tha net area for each building componer.c antl <br /> record in column B. The net area for the walls and roof Multiply the base case areas in column C hy the required U- , , <br /> equals the pross wall or roof area minus the opening area- ��colum Glumn D for each buildinq component and record <br /> windows,doors,skylights,etc. :� <br /> � �.�� �) PROPOSED UA: � <br /> 0 BpSE CASE ARFA: , <br /> 1 � Determins the base case area and recortl in col�mn C. The Multiply the net areas in column B by the proposed U- <br /> ��r base ase area for walls is the total wall area minus the hase vaiues in column F for each 6uildinp component and record <br /> i �q� case window area. Record total hase case vrall area in in column H. ;:a <br /> ; column C, row•walls 1.The base case area torwindows, <br /> sliding glass doors and othei doors that are substantially <br /> ' glass must add u�to 15/o ot the conditioned tloor area. Q UA DIFFERENCE: <br /> � The skylight area Is not included in the base case scenario. pdd all ol the 6uildinp component values in ihe required UA <br /> i `"' Conditioned floor Area r..15=_ Record the numDer coiumn G and record at the bottom of the column in the <br /> fmm above in column C,row-w�ndows 7. The 6ase case box tor totals. Add all of the buildinp component values in <br /> areas tor the ceiiinps,floors and non-glass tloors is the the proposed UA coiumn H xnd record at the bottom oi[he <br /> � same as the proposed net area for those huilding compo- column in the box tor totals.Subtact the total proposed UA <br /> �� ( nents.The hase Case areas are the areas used when in column H trom tha total required UA in column G and ; <br /> determining the required U0. record in the box tor totals in column I. � <br /> i!_ If the answer is a positive numher ffien the proposed areas <br /> ,.��I O RE�UIRED•CODE-U•VALUES: and U-values comply with the Chapter 5 approach to the <br /> The U•Yalues listed are the minimum required U-�alues NWEC. If the totai is a nepative numher then the proposetl <br /> areas and U-va�ues do not comply with the Chapter 5 <br /> shoK�n in Table 5•1 NWEC for Zone I,Luw-rise R-3 and R-1. approach to the NWEC. <br /> Ij � '� See Table 5•2 to� th�required U-values tor Zone IL �i the proposed areas and U•Yaiues do not comply: Review <br /> � '� the num6ers in the UA columns G and H. You must <br /> \ � PpOPOSED MEASURE TO 8E INSTALLE�: dec ease the U•ua�ue(increase the insulation)or area for <br /> one or more of the building components to make the <br /> The proposed measure is the R-value of the insulation in the P�oject complyr Once you have chanped either the U-Yalue <br /> buildinp component(walis,ceilinps,floors)or the tested U- or proposed area tor the building component(s). Find the <br /> ' vaiue of the buildinp component(wintlows,tloors,sky- new proposed UA and add up the coiumn aBam. If the rotal <br /> � lights,etc.). of the UA diHerence is positive then ihe project complies <br /> ' with the code. It ihe number is negativE try another <br /> huiltling component or further deerease the U-value until <br /> the total tor the UA ditterence is positive. <br /> i ` <br />