4606 5TH AVE W 2016-01-01 MF Import

PAGE20F3 � Instructions: 1) Carefully review the requirer.�ents for each oi the options beiow. Choose an option that best suits your dwelling design. Glazing percentage and haating system AFUE typicaily determines which option to choose. Your building must match the selected option rec;�irements without exceptions or substitutions. 2) Check lhe box next to the requirements for your option. Disregard componenis or equipment that do not apply to your project. Can't Complv? � If none of the Prescriptive (Chapter 6) options are acceptable, consider the Component Periormance (C;iapter 5) Approach. The main 2dvantage is ilexibility to juggle individual R and U-tactors as long as an overall maxim��m value isn't exceeded. Note that ihe Component Pertormance requirements are no less stringent than the Pr�scriptive :equirements. Calculations may be per(ormed with a 2001 WSEC Chapter 5 Residential Oualification Form, or �y using ac acce,tabie computer program such as WATTSUN. ' TABLE 6-1 PRESCRiPTIVE REQUIREMENTSQ1 FOR GROUP R OCCUPANCY �^ption Glazing Glazing Glazing 6 Wali w+'�Int Wall Ext ' Slab° Check ` Area10: U-Fac4or U-Faofor �oor� Ceiling� Vaulted Above Be'ow�` Below°�� Floo� �:� on" �One goofFloor Verticai Overhead'� �"Factor Ceiling Grade Gride}. Grade'' ;Grade I. 12°a 0.35 0.58 0.20 R-38 R-30 R-15 R�15 R-10 R-30 R-10 II.' 15°0 0.40 0.58 0.20 R-38 R-30 R-21 R 21 R-10 R-30 R-10 IIL Uniimited X Group R-3 O.dO 0.58 0.20 fl-38 R•30 R-21 R-21 R-10 R-30 R-10 Occupancy Onl 0.Nomin�l R-Values aro for wood Iramo assemblics only or assemblies built in accordance with section E01.1 1.Idiniinum requiremants(or each oplion IislNd. 2.Requirement applios to all ceilings except sinc�le mlter or joisl vaWted r,eilings. 3.Requiremenl applicablo only to sinplo rafter or joist vaWleo ceilings. 4.Below grado walls shall bo insulaled either on tho exterior to a minimum lovel of R-10,or on ihe intericr to thc s��mo level as walls•aLovo grado. �. Exterior in;ulation installed on beluw grado walls shall bo a water resistsnt malerial,manufactured 'x iCs ir,'^nded uso,and installed acwrding to the manufacturers specilications. See section 602.2 5.Floor;over crawl spaces or ezposed to am6ient air conditions. 6.�oors,includ�ng ell firo doors,shall be assigned delault U-factors from table 10�6C. 7.Where a maximum c�lazing area is listed,ihe total n�azing area(combined vertical plw overhead)as a percent of gross conditioned floor area shall be loss than or equal to Ihat valuo. OverheaA glazing x�ith U-factor ol U=0.40 or less is not includt��d in glazin9 area limitations. 8.Overhead glazing shall have U-factors dotennined in concordance with NFRC 100 or os specified in sectio n502.1.5. 9.Log and,olid lumber walls with a minimum averago lhickness nf 3.5'ore exempt Irom lhis insulation requirement. Prescriptive Heating System Sizing (Chapter 9 WSEC) The following formula may be used tor prescriptive sizing (forced air only): x 25= Bl'U's (Heated floor area) (Maximum BTU's-OUTPUT) Other combustion heating appliances (gas fireplace, wall heater, unit heater, etc,) shall have intermittent ignition or must meet 1987 NAECA (National Appliance Energy Conservation Act) e(ficiency requirements and be so labeled. Vapor Retarders shall be installed toward ihe warm surface as represented below: Select one option (or floors, walls, and appropriate ceilings: Floors ywoo w eaterior g ue i . o y un er s a on gra e Walls o y mi. ace-stap e , bac e atts ow-perm paint Ceilings Poly (4 mil.) Face-stapled, backed batts �Low-perm paint Not reyuired where ventilation space avereage 12"min. above insulation. ��