THES'S .~ £713.27" . . - sswfimm fat»; 7 / .(_g ,1»: .4~ r; g' 3 Michigan Sta [C g,~ a.“ Umvcrsiq' r] This is to certify that the thesis entitled RESEEN'I'IAL THERMAL PERFOMNCE AND THE MCI-EGAN ENERGY CIDE presented by Thanas W. Philp has been accepted towards fulfillment of the requirements for M.S . degree in Building Construction Major professor Battling/{,1 / if: 0-7639 OVERDUE FINES: 25¢ per day per item RETURNING LIBRARY MAIEBTflLg: Place in book return to ":uove charge from circulatior receuds RESIDENTIAL THERMAL PERFORMANCE AND THE MICHIGAN ENERGY CODE BY Thomas William Philp A rIHESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Building Construction Program 1980 ABSTRACT RESIDENTIAL THERMAL PERFORMANCE AND THE MICHIGAN ENERGY (IDDE By Thomas William Philp This program is an attempt to simplify the calculations required in determining the compliance of a one or two family dwelling with the Michigan Energy Code (or any energy code based on ASHRAE Standard 90-75) . Because of the large amount of effort required to translate building blueprints and specifications into machine-usable format and while the actual calculations consume only a small portion of this effort, a computer program will only be useful if these translating tasks are fomalized into routines, simplified and appropriate forms are designed to simplify the architect/programmer interface. This entire problem could be approached using a digitizer and some sophisti- cated software, but this would be an expensive alternative, feasible only to a business or governmental body doing computer models on a large scale. Appro WEDGE—MEWS Special thanks to Peter, Pat and Bill, Sal and Bus, Lori and Mush. Without their guidance and inspiration, this damn thing would have never been produced . More thanks to Vicki, Sully, J. B. and P. B. for all their understanding . ii TABLE INTRODUCTION.......... II . PIDGRAM EXPLANATION . . . III. FORM EXPLANATION . . . . . IV. LBER QUALIFICATIONS . . V. NOTES ON THE WORKSHEET . . VI. RECOMMENDATIONS . . . . . APPENDIXA........... APPENDIXB........... OF CCN'IEN'IS iii I . INTRODUCTION This project consists of two major carponents. The first is a computer program which performs the calculations required in determin- ing the compliance of a one or two family structure with the Michigan Energy Code, which is hereafter referred to as the Code. Secmdly, a form or worksheet has been designed to simplify a builder's efforts in translating information from blueprints into machine-usable data. II. PROGRAM EXPLANATION The computer program camponent of this project is written in FORTRAN IV and is included as Appendix B. The objective of the program is to calculate the overall heat loss of the thermal envelope and determine if the structure complies with the Code. Discounting the preliminary information, this is the first data to appear on the computer printout. This program also calculates and prints the total heat envelope thermal transmittance, the percent fenestration and maximum recommended fenestration. Thermal transmittance of all wall components, combined gross ceilings and floors over unheated spaces are all calculated and printed. The program also calculates and prints whether these assemblies and any slab floors are in compliance with the Code's requirements for those specific areas. This program was written with no sacrifice of accuracy in regard to brevity. The long-hand method of determining a structure's compli- ance with the Code involves considerably less detail than that included in the program. III. FORM EXPLANATION The form component of this project serves to organize the builder' 5 analysis of the heat loss characteristics of residential structures and is included as Appendix A. The numerical data necessary for heat loss calculations is initially scattered throughout the archi- tectural drawings, and comprehensive heat loss calculations would be a formidable problem without an organized approach. A carputer program has been written to do the actual calculations, but data must first be obtained from the building drawings and transferred into some computer- usable format. A form has been designed to expedite the blueprint/ computer interface. The form is designed to be a self-explanatory worksheet with many graphic aids. The form also organizes the data in such a way that a keypunch operator can use the completed form as a guide to creating a deck of keyptmched data cards which the carputer can read. IV . USER QUALIFICATIONS The form was written for the person knowledgeable in residential construction terminology and the Code. It was not designed to be used by person's unfamiliar with residential construction. A thorough understanding of residential detailing and components is essential. The person using the form must also have access to and be familiar with tables containing design values of various building and insulating materials. Values fran these tables are associated with various carponents of a structure and specify their resistance to heat flow. These values are added for a composite section of a structure, for example a wall assembly, and then written in the form in the designated space. The tables of design values may be found in the ASHRAE Handbook of Fundamentals, The Michigan Energy Code booklet and many other publications populari zing energy conservation . V. I‘DTES ON THE mRKSHEET The spaces for the owner's name, site address, contractor, contractor's phone number, and date, are included so that this infor- mation will appear on the carputer printout. (be minor problem that may arise here is the inadvertent use by the user of symbols that are not on the keypunch machine. If illegal characters are used in these spaces , the keypunch operator should substitute appropriate legal symbols. Recognized legal symbols are not listed here because of possible differences between machines. Notice the "programming note" on the first page of the form. The numberic data entered in the "degree days" space must have a decimal point. The reason for this is that the computer will be manipulating this data, and the program is slightly simpler if the decimal point is entered here. R values and areas which are entered later in the form must also have decimal points. Continuing through the form, the next porticn deals with the roof canponent. Anyone using this form should recognize what is referred to as a cathedral type roof. This is a roof/ceiling assembly in which the finished interior surface exposed to a heated space is essentially the underside of the roof deck. If the building under consideration has any roof/ceiling area of the cathedral type, enter a "2" (two) in the space provided on data line 5 of the form and carplete page two of the form. If the building does not have any cathedral roof 5 components, leave data line 5 blank. For proper operation of the pro- gram, the keypunch operator should enter a blank card into the data dedc if data line 5 is blank. If this is inccnvenient, a card with any single entry except "2" (two) can be entered. On page two of the form, a diagram illustrates a typical cross- section of a cathedral roof. Using this as a guide, enter the R values of each element of the assembly into the spaces provided on the data line beneath the illustration. The five spaces for R values are label- ed "roofing", "insulation", "wood plaik", and "other". These labels are not important to the program, and R values can be entered into any of the spaces without regard to the label. Do not enter R values for the interior and exterior air surfaces, as the program contains this information. Each R value entered must have a decimal point. If the assembly contains more elements than the five provided for in the form, add two or more R values together and enter the sum in one R value space on the form. Do not use more than one data line for any one cross-section. Calculate the gross area of each type of cathedral roof in the structure under consideration. This must have units of square feet. A conversion table is provided for converting inches to decimal feet. Enter the gross area into the indicated space 01 the form. Be sure to include a decimal point. If there is more than one type of cathedral roof/ceiling assembly in the structure under consideration, each type should be treated spearately with its own data line aid area calculatim. To inform the computer that more than one cathedral roof data line is being used, the "status flag" was created. If there is more than one cathedral roof data line, enter a "6" (six) in the status flag position on each data line except the last one. The status flag concept is used through the remainder of the form. Each different type of building envelope component will have a unique status flag. Pages three through five of the form are self-explanatory to a person familiar with residential design and ccnstructim. The previous comments all apply here as well. Note that the cross-section through the framing and the cross-section through the cavity of the open-ceil- ing carponent are treated separately . This approach is fol lowed througrout the form and results in high accuracy. Pages eight and nine of the form deal with the windows and entry doors of the structure. Page eight contains an area to sketch the cross-section of each different window. The thermal transmittance (U) of each window assembly is calculated using methods familiar to a person skilled in residential design. These methods are not detailed here but may be found in many sources, for exarple, the ASHRAE Handbook of Fundamentals. This calculation is made for the path of maximum thermal transmittance through the window. Estimate the percentage of the total window area that is sash for each window. If the percentage area of sash for any window is 20% or greater, an adjustment of the U value is made according to methods detailed in the ASHRAE Handbook of Fundamentals. Enter the number of similar windows, the U value, and the dimen- sions of the window in the appropriate spaces in the form. All of these entries must have a decimal point, and the dimensions must be in decimal feet. If the U value of a window is knovm, the data may be eitered directly into the form and the calculations omitted. The number of similar window units aid their dimensions is still necessary, hmever. Although the form does not explicitly state this, a similar pro- cedure should be followed for each entry door in the heat envelope. The remainder of the form should not preseit any appreciable difficulty to the user. There are a few additional guidelines that the keypmch operator should observe. These guidelines are included as page eighteen of the form. The program can handle an unlimited number of houses . VI . WHONS Limitations of this program can be traced to flaws in the design of the Code. The scope of the Code does not permit inclusion of the overall heat gain and heat loss of a structure. The program could have easily been written to include these calculations despite involving complex microclimatic data and other complicated parameters. Space and window orientation , thennal shutters and interior mass are all significant factors when energy requirements of a structure are analyzed. These factors are ignored by the Code but could be easily accorodated into the program. This program may become obsolete within several years. The Michigan Energy Code will eventually be replaced by a federal standard, Building Energy Performance Standards (BEPS) , despite lobbying efforts by the National Association of Home Builders who seek to delay its implementation. These proposed federal staidards will take the total energy consumption of a structure into consideration. After BEPS is implemented, I will probably become involved with devising a simplified worksheet and corputer program that will assist builders in determining the compliance of their structures with BEPS. APPENDICES APPENDIX A 10 mIChIGAh ENERGY Coot PRELIhIhARY DATA data F11P9_i_____._ Owh‘ER H] __‘L ll data line 2 fl_ h‘_w__nb _ 51TH Wise» if“: ‘ Hi1} ll ll 1 if: rdata line 3 ”I:lnhh:u.nnv,w, CONTRACth/thnE Ll; Ahlil__~i-u_w.1 l~iqwul,, “pi-“ data line A 21-er'ov-c 'all‘1“C‘Vkiiiz‘iiei‘lci'ltf‘k' DEGREE DAYS'A'JAT'E . jT—j i i l 1 “Programming note: Degree Days is in floating point format. A decimal point must be included. ROOF CUhFOhEbT Referring to the building blueprints, is any part of the structure a CATHEDRAL ROOF? YES no (A roof/ceiling assembly in which the finished interior surface exposed to a heated space is essentially the underside of the roof deck. See sketches below.) B C Note on sketch C: if there is an air gap of two inches or more between the bottom 01 the roar oeck and the insulation. this is not a cathedral roof but an open- ceiling type. Note on sketch a. Where a combination of roof/ceiling types exists. the cathedral area is treated separately from the open-ceiling. If the answer circled above is YES. place a two (2) in the box below and complete the following section pertain- ing to cathedral roof. If the answer above is NO. leave the box blank and skip the section on cathedral roof.’ “Programming note: uon't forget to insert a blank card in the data deck in this case. CATHEDRAL ROOF E1 data line 5 ll CATHED&ROOF corzpormzm Referring to the cross-sectional diagram below, enter the R value of each element of the assembly into the positions indicated. Decimal points must be used in each entry. Q9 not enter R values for inside and outside air surfaces. Framing does not have to be estimated for the cathedral roof. Leave the spaces labeled "OTHER" blank if they are not needed. If there are more than one area of cathedral roof in the structure, use a separate line for each area. Outside Surface 3 Roofing r P P Insulation For Hood Plank Inside Surface Other Open Rafter (/”___ R Values ___, STATUS FLAG . .-.. n WOOD ‘_-_~‘\\\ GROSS Calculate the GROSS AREA of each cathedral roof/ceiling area, and enter it (in square feet) in the same line with the R values for that area. The GROSS AREA is the inside surface area of cathedral roof/ceiling over heated space. The last position in the data line is a status flag to indicate that another cathedral data line follows. If there are more than one data line, enter a 6 (six) in this position on each line except the last one. page two 12 OPEN-CEILING CORPONEflT Also includes roof/ceiling types with two inches or more air space between insulation and roof deck. Care must be taken when analyzing structures with dormers, heated attics. and other complications to properly identify elements of the heat envelope as to cathedral roof. open-ceiling, wall. etc.. because code thermal transmittance requirements are different for each. Referring to the cross-sectional diagram below, enter the R value of each element of the assembly into the positions indicated. Decimal points must be used in each entry. 22 not enter 8 values for inside and outside air surfaces. Cavity Top Surface Insulation Finish Bottom Surface Other Me Top Surface <‘ ?”””’,,.e—-Nood Joist a ”“ 0‘ ~ Finish u . / Bottom Surface Other Instructions for entering data: Enter R values of the CAVITY assembly components into the indicated spaces. Compute GROSS AREA of this open-ceiling area (including framing). and enter it (in square feet. using decimal point) in the proper space. The GROSS AREA is the inside surface area of open-ceiling over heated space. page three 13 OPEN-CEILING COMPONERT (continued) Programming note: A 7 (seven) is entered in the last space to indicate that a FRAKING data line will follow. Cavity data line a Values STATUS FLAG caoss INSULATION FINISH OTHER OTHER OTHER AREA [I . ’1'] WI mnoonlnnauuvnnivnnunnvufi‘waJueua'nuwlvszsauuus'uwgv Enter R values of the FRAME assembly components into the indicated spaces. To find the framing area factor. divide the center-to-center distance between Joists (in inches) into 1.5 (one and one-half). Enter this number into the FACTOR position. For example: FACTOR 16" c/c 1.5 e 16 = 0.09375 2h" c/c 1.5 e 24 = 0.0625 Framing data line R Values , STATUS FLAG WOOD JOIST FINISH OTHER OTHER OTHER FACTOR Ilziasrlroowuizugunuwnlnnununnn valiant-van 1aouonuno vans-navy.» YT ' ' fr r v r I III IIII ‘ II ~‘ I I ‘1 ' "‘I" 4 ' ’ II"r ' I i I I ; l: L J 'L II All' I I If there are more than one type of open-ceiling assembly in the structure. this procedure of entering one cavity data line followed by one framing data line should be followed for each area in turn. In the case of additional areas being needed, enter an 8 (eight) in the frm wing data line status flag of each area except the last, to indicate that more roof/ceiling data lines follow. page four 14 OPEN-CEILING COMPONENT (continued) Additional open-ceiling data lines. (Skip this page if these are not needed.) STATUS FLAG I Cavity data line ___ GROS I INSULATION FINISH OTHER OTHER OTHER AREA \liesn ’09 HHWMHM’IWNlnflubfflflfl ”DESDWI’ 'Guudfll’UflT ”flux-1'35”” .;I I A ‘1 TI 4' l Framing data line WOOD JOIST FINISH OTHER OTHER OTHER FACTOR LvLaa91012Iouflinunusulrwnnlvlfinununnr J-Iununxnun "un'lw uxaquTa-vun LIHJILJIT I "I TJ I Cavit dat 11 y a ne GROSS —_I INSULATION FINISH OTHER OTHER OTHER AREA 'IlaosTnvoo n‘ruavtwmnn Hunuuuaua- Tuna-”Inna.” couculcrauac:,znuuluvuu 1" TI: 1 I J‘ J I ‘ Framing data line 1 WOOD JOIST FINISH OTHER OTHER OTHER FACTOR IIIIUIM'SIO"H||I9’ ”7213143330.” want-mars). IOWQMCTOHCN vnnuuavnn 1r:]l IT if I; I I . I l r ",.’.,.I]' IIII iJ Cavity data line GROSS _#INSULATION FINISH OTHER OTHER OTHER AREA 1 .1030 lacuna-vanadiunujuvun A : 1‘ 3|. I £1? 1% Framing data line HOOD JOIST FINISH OTHER OTHER OTHER FACTOR .' I I I I o 7 I OI. "Yuuw‘.fiu“."n wvnj'uYn‘h‘uan'ap. nyun qu‘nxvun lqu:um.‘uT‘.”” sans-slur 3090 111111" EINI I f j: page five JAIL COI‘ZPCYE‘I The wall component contains several assemblies that must each be treated separately. They include the RIE JOIST (of which there may be more than one if the building is multistory), JINDOHS, ENTRY DOOR. MASONRY WALL. WALL CAVITY. WALL FRANINC (including headers), and possibly others depending on the individual peculiarities of the structure. Each section applicable should be completed and the computer will calculate the composite wall component of the heat envelope. Walls that are included in the heat envelope are walls that enclose a heated area and are exposed to outside temperature. Unheated porches. garage, storage, unheated attic, etc.. are considered outside temperature. RIM JOIST ASSEKBLY Include all rim joist areas that are exposed to outside temperature (per definition above). This would include rin Joists on all floors. Referring to diagram below. enter the R value of each element into the positions indicated (using a decimal point in each). 29 not enter R values for inside and outside air surfaces. If the rim joist is not the common box sill type illustrated below, enter R values of the elements in the indicated spaces following the same general pattern (at a cross-section of least R with greatest surface). Sole Outside Surface /Sid1n8 Sheathing / flood Joist ____l H Inside Surface Other Ci] 4‘1 Sill page six Calculate the PERIKETER of each rim joist type, RIK 16 JOIST ASSEEBLY (continued) and enter it (in feet using decimal point) in the indicated space. Determine the HEIGHT of the assembly, to the top of the floor. from the bottom of the sill Convert this figure into feet (with decimal point) using the conversion table in the Appendix, and enter it in the indicated space. If more rim Joist data lines are to follow the first, enter a 1 (one) in the STATUS FLAG box of each line except the last. PERINETER HEIGHT STATU; FLAQ 4——— R Values SIDIHG SHEATHING HOOD JOIST ’3‘): 2::2130:vu1'n.‘vw**:nut~u "unfinuegru.7'-« 277:1 ',~ . F..- 'oo-ol 'I'J'IS'O’W‘ (.1 V: f WINDOW ASSENBLY There are typically many different types of window in a structure. Since a large percentage of a building's heat loss is through the windows, particular attention should be given to their analysis. Each different type and size of window must be analyzed individually. A worksheet for this purpose follows this page. Complete one worksheet for every window type and enter the resulting data in the data lines on page nine. Table 6 from ASHRAE Handbook of Fundamentals is located in the Appendix. page seven 17 Window Worksheet Complete one worksheet for each different type and/or size window. All windows of the same type and size should appear on the same sheet. Use the space below to sketch the window with dimensions. Enter the total number of windows of this type and size in the UNITS position. Enter the HEIGHT and the WIDTH of the window assembly, including the sash. into the spaces provided on the data line. These figures should first be converted into decimal feet (using conversion table in the Appendix). Using Table 6 from the ASHHAE Handbook of Fundamentals to determine the thermal transmittance value (U) of the window. If the window has a wide sash in relation to the glass area. find the sash area and divide by the total window area. If the sash area is more than 20; of the total window area, see Part C of Table 6 for adjustment of the window's U value. Enter the adjusted U value in the indicated position in the data line. 9888 eight 18 NIKDON ASSEABLY (continued) Programming note: A decimal point must be used in all positions except STATUS FLAG. A 2 (two) in the STATUS FLAJ position indicates that another window data line follows. STATUS FLAJ UNITS U JIDTF HHIJHT EXTRY DOOR Find the U value of each entry door in the heat envelope from Table 5. ASHRAE Handbook of Fundamentals. located in the Appendix. Enter the WIDTH and HEIGHT of the assembly in the indicated spaces. Enter the number of identical assemblies in the UNITS position. A 3 (three) in the STATUS FLAG position indicates that another entry door data line follows. A decimal point must be used in all positions except STATUS FLAG. UNITS U NIDTE HEIGHT a k page nine l9 FASCHHY «ALL The masonry wall component includes any poured concrete or cinder block walls that enclose a heated space and are above grade. For instance, the above-grade portions of basement walls (where the basement is heated) would be considered in this section. 30 not include above-grade foundation walls that enclose an unheated crawl space. (These are not even part of the heat envelope.) Do not include framed walls with face brick. (These will be treated as ordinary wall.) Using the diagram below as a guide, enter R values for the assembly components into the indicated spaces in the data line. Complete a separate data line for each different type of masonry wall. Use a decimal point in each entry. Calculate the area of each masonry wall type including windows and doors. Enter this figure (in square feet USIhé decimal point) in the AREA position. If more than one masonry data line is needed, use the STATUS FLAG. Enter a a (four) in every line except the last, to indicate that another masonry data line follows. l; _1 //”””,a———-Outside Surface Concrete Block or Concrete dall P’fl_.———————‘—'Air Space Interior dall Conponents >\ Inside Surface Other (for example, Face Brick) W STATUS FLAG 22,225 enter R values for inside and outside air surfaces. ,r—* -“ R values ——" \ AREA page ten 20 PEAKED WALL Referring to the diagram below, enter R values for the assembly components into the indicated spaces on the CAVITY data line. 22 not enter R values for inside and outside air surfaces. Calculate the area of this framed wall area includinr windows, ——ud doors, and framing. Enter this figure (in square feet using decimal point) in the AREA position. ‘3 "F" Cavity Outside Surface “‘*~ Exterior Siding ‘—“‘—-Sheathing Insulation Interior Wall Components ‘*'—‘——————————-Interior Surface Stud Same as cavity except; 3-1/2 in. Wood Stud in place of Insulation. Cavity data line SIDING SHEATHING INSULATION FINISH OTHER AREA 'zic,«'0won't-nuvalonwvozolzlunIona-var )unnunnvnnoIuuueovanwlr”Hanna's-”go! ' i T v _ y f ‘ ‘ ‘ 'l J, 1“ '- “L; r TIIY all I -1 Li AAAL a a is; All F If there are headers over the windows and doors, enter R values for header components into the indicated spaces on the HEADER data line. (If there are not enough spaces, add two or more R values together and enter the total.) Enter the height of the headers into the HEIGHT position (in decimal feet using conversion table in Appendix). Enter the total length of the headers into the LENGTH position (in decimal feet). Use the STATUS FLAG if there are more than one width of header per cavity type. Enter a 5 (five in every line except the last, to indicate that another header data line follows. STATUS FLAG Header data line H Values LENGTH l page eleven 21 FRAMED WALL (continued) Enter R values of the FRAHE assembly components into the indicated spaces. To find the framing area factor. divide the center-to-center distance between Joists (in inches) into 1.5 (one and one-half). Enter this number into the FACTOR position. For example: FACTOR 16" c/c 1.5 e 16 = 0.09375 214'" C/C 105 9 21'" = 0.0625 Framing data line STATUS FLAG R Values "\ FACTOR | |' U ‘3 M U ‘0 I? 1. N NE' D I) I. I) h I’ D F 1‘ n D .1 D h D n R an A} 0 u G O 0 C 0 fl 9.) U )- I, g 5' fl 1. V Y ' Iff 7] v V I V ‘ T Y T] . I q I I L ‘ ‘ l x . I I ‘ I . > T x A t A ‘ j J A ‘ ‘ A A A A A A A A A A A v A A A If more than one type of framed wall exists in the structure, enter a 9 (nine) in the STATUS FLAG position on the framing data line (except the final one) to indicate that another set of wall data lines will follow. Follow the preceeding procedure for each different type of framed wall. Additional data lines are provided for this purpose. 7”’ R Values AREA bI‘WIIIOIIIIiW vu-Wunznaran varnuvnxvpun 'J’J’“°“’L"”'”‘Y]’TW"" [id TTTiTl'7i TTTT-lva TTI‘ TT-il' fTIiz'TITT I L Header data line ' STATUS FLAG ,7 R Values —r* a—“ HEIGHT LENGTH Cavity data line ‘ . Framing data line STATUS FLAG ’7, R Values ~—\ FACTOR I:H‘Ysas¢jrmuuuunmrunflaaavun inundation lacuna-9n” TTLTITTTITTlT IT Til ' TTTT T‘ il‘LTLlTTT: page twelve Additional wall component data lines. are not needed.) Cavity data line 22 L (continued) (Skip this page if these 3 181.488 ARE A Framing data line — fi 3 J o ir'I- I 061.01. 2-. - v. 0:2! ~. ;. 3;. 1. 7mm»)!!- 7'10” “F a“ u c.‘ ‘ Kr“ ” b a. T “w ~ -1 Reader data line STA” D rLAu R Values "* STATUS FLAG v , L1 11 1 Cavity data line R Values | - “FACTOR-:1 3L. ..nfcna.n1.r:ZFuuf.unTua..l:\T.I i ——'1 Framing data line EE::T R Values ~_.\ AREA liaosTrI'ucvifi'l'ca'o"‘0'0nI:nnuunrinYHunxrnvfi'uuueardu EFL-‘SFTWI‘Tf LT TI T l I I L STA" S FLAG Header data line R Values ,i \ HEIGHT LENGTH STATUS FLAG '—‘2 . a I . siuivtlnlfu '1 u 9' u" ' "‘Nl unuubrun1)nanny.93’1-dun-unnnxrnnuuuvunjo '_J page thirteen 23 FLCOE COI‘IFONIJTIT There are several types of floor assembly commonly encountered. and each is treated differently. To simplify the task. four basic floor types have been identified. They are: (1) the floor over unheated space, (2) the slab-on-grade (heated and unheated), (3) heated basement. (h) a combination of the above. These types are illustrated below. Crawl Space y///§7///1WM / Floor Over Unheated Space 4fl§a$>5eg /' ’S/ {V 6 -/< S. \ f % )0 Combination: § 1 / "‘—“' - example shows ‘CTTXV é977 $/ \’/ w/WTWt , addition to * ‘ é;§%Z§J¢Cé “ Q~ existing structure Basement page fourteen '24 FLOOR COEPONENT (continued) The HEATED BASEKEKT is a special case of wall component (and the above-grade portion of the basement should be entered as wall component). If the entire structure is over a heated basement, no floor component exists. Thus. in a combination of floor types. care must be taken to properly identify each element. FLOOR OVER UfiHE TED SP 33 Referring to the cross-sectional diagram. enter the R value of each element of the floor cavity into the positions indicated on the cavity data line. 29 not enter R values for inside and outside air surfaces. Calculate the area of this floor assembly (including framing) and enter this figure (in square feet using decimal point) into the AREA position on the floor cavity data line. Inside Surface Interior Material “W‘s“ Wood Floor Subfloor Outside Surface Other Cavity data line R Values——* —'«\ AREA LL’ 3"YI'0'1 u :IMI annlrnnuunvnniiunannvnr‘Tcoa-ooa onwls'unuuaruuir V I V I Y T Enter R values of the floor framing components into the indicated spaces on the framing data line. To find the framing area factor, divide the center-to-center distance between Joists (in inches) into 1.5 (one and one-half). Enter the result into the FACTOR position. For example: 0.09375 FACTOR 16" c/c .5 9 16 1 24" c/c 1.5 9 2h page fifteen 25 FLOOR OVER UNREATED SPACE (continued) Framing data line STATUS FLAG e—- R Values a‘\ FACTOR '1 )Tnfil‘ a 01011 1 u In"gun'me-nnul)bliflfn—ny”3”1.1.4.1adzuc..7.m,—uvyrns,”” . II I II. I TO I I I TI TI T 7T I I I A A Follow this procedure for each different type of floor over unheated space. If more than one set of data lines are needed, enter a 7 (seven) in the STATUS FLAG position of each floor framing data line except the last, to indicate that another set of floor component data lines follows. I Cavity data line ,7, R Values ~——‘\ AREA I 2103"IOIOHIE‘LH'S‘AI'IIIONII:anll‘lhrn?unh”mauvuull’dYflfliSisiunhvqu-o— II ‘ II I I L I , I I ;II I I I Framing data line STATUS FLAG R Values ——* FACTOR ’7— 3F “\ Flt: ‘WT’Y. o m u I: ., u u Io: 'vafllu n h 23:11. 20 r )2 u an: air in” _ afar-Te ‘nv‘f' 1‘52 3) :- i: u 9 my” .- I [I‘IjI‘JTLTIT II 1;] 1 TmITT 1 ——-——I Cavity data line "“" R Values -——~\ AREA ’I’ ‘TF'I’VWH I! ‘1 M '3 my}. W 1617-22 n 24:: 3711 u :3). ”'13): :3th an a3: 0‘01“ 6.1” “7“ so 9* s: u an 3.9 u‘n v [III II;‘ I ‘ TI‘* ‘1 I“ I I': IIi I I' 33: ”g“ R Values — «‘ FACTOR I "3’," n I: I. n: vovnlnzznaoyb 1.2130.” ivufnuvnxvrynruv'aujlueonfniols‘nm uvnuvu” LgITCaI ‘IIIT I id’IIIII'TIII; *l TII~ SLAB ON GRADE There are two main types of slab floors: heated and unheated. Referring to the building blueprints, determine whether the slab is heated or unheated. A heated slab is one in which the source of heat is located in the slab gradient floor slab) or beneath the slab (perimeter, buried. underfloor heating ducts). If the slab is heated, enter a 1 (one) in the position labeled "H" on the slab data line. If the slab is not heated. enter a 0 (zero). page sixteen 26 SLAB ON GRAQE (continued) The area of a slab floor does not have to be calculated. Referring to the diagram below, notice that the insulation extends downward from the top of the slab and then horizontally beneath the slab. The insulation may also extend straight down. Enter the length of this insulation (total vertical and horizontal distance) in inches (rounded off to the nearest inch) in the position marked "L" in the slab data line. (If this distance cannot be determined. enter 2h (twenty-four).) Enter the R value of this insulation in the R VAIPR position. “FM-1K ._ 2._.I u" concrete .4 . 'io \/*/ I o vapor barrier u" gravel \ . \ - . .' 9/1\\\‘///,\\°’/.\\VVI\\VI AV \V//'/ I 0" I.'\ / //¢ V//z\\\7/ \37/s\W/\\' //, 2" rigid waterproof insulation Slab data line R Value I‘rcgclraowltvllls TITT ° page seventeen Pages one andtwo Page four Page seven Page nine Page nine Page ten Pages eleven and twelve Page fifteen Page seventeen 27 ADDITIONAL PKDGRANMING I‘UI'ES If there is £12 cathedral roof carponent, a blank card is inserted in data line 5, but do not insert a blank card in the cathedral data line, instead proceed directly to the open-ceiling data line. If there is no open-ceiling component (for example, if the entire roof/ceiling assembly is cathedral type), insert _t_wg blank cards in the deck at the position normally occupied by the open-ceiling data lines. If there is no rim joist assembly, insert a blank card in the data deck. If there are no windows, insert a blank card in the data deck. If there are no entry doors, insert a blank card in the data deck. If there is no masonry wall carponent, insert a blank card in the data deck. If there is no framed wall carponent, insert three blank cards in the data deck. If there is no floor over unheated space (for exanple, if the entire floor is slab), insert a blank card in the data deck here. If there is no slab floor, insert a blank card in the data deck. 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