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HomeMy WebLinkAbout013 - A0.30 - BUILDING CODE SUMMARYDrawn By:Checked By:Project Number:Sheet Number:© 2023 Solomon Cordwell BuenzBUILDING CODESUMMARY321 N 5TH AVEBOZEMAN, MT 59715THE GUTHRIE AT 5THAND VILLARDA0.30MADBS2023029713.4, 1023.2, 3002Shaft Walls, Stair and ElevatorEnclosures2hrs where connecting 4-stories or moreconstructed as fire barriers per 707. Exterior wallsmay be reduced based on fire separation distanceper Table 705.5)x ≥ 30: 0hr10 ≤ x < 30: 1hr5 ≤ x < 10: 1hrTable 705.5 Ext wall rating based on... x < 5: 1hrRoof construction: 0hrFloor construction: 0hr (not less than 1 hour whenseparating units per 711.2.4.3)Interior non-bearing walls: 0hr (not less than 1hour when separating units per 708)Interior bearing walls: 0hr (not less than 1 hourwhen separating units per 708)Exterior bearing walls: 2hrsTable 601 Fire Rating for Bldg Element Primary Structural Frame: 0hrSection Item Drawing CommentFIRE RESISTIVE RATINGS - Chapter 6/7602.3 Type III-B Fire-retardant-treated wood framing andsheathing complying with 2303.2 shall bepermitted in exterior wall assemblies in lieu ofnon-combustible materials.Section Item Drawing CommentCONSTRUCTION TYPE - Chapter 6508.2 Accessory occupanciesAggregate area of accessory occupancies shallbe no more than 10% of the floor area of the storyin which they are located.503.1.4 Occupied RoofsNot included in building height or number ofstories or building area.Table 506.3.3 Frontage Increase I = 0.2565,860 SF total building area41,600 SF per floor allowed A = [48,000 + (16,000 x 0.25)] x 4506.2.1 208,000 SF allowedMax Area Allowed for Type III-B perSingle-Occupancy, Multistory BuildingTable 506.248,000 SF / III-B(per floor for 4-story NFPA13)Allowable Area Factor - SMTable 504.4 5-stories / III-BR occupancies are required to be protected by anautomatic sprinkler system, sec 903.3.1.1 in orderto build to 5 stories.Table 504.3 75' Allowable Bldg Height / III-BSection Item Drawing CommentHEIGHT, STORIES AND AREA LIMITATIONS - Chapter 5420.5 Fire Alarm and Smoke AlarmsProvide in accordance with 907.2.6, 907.2.8,907.2.9 and 907.2.11.420.4 Sprinkler SystemAutomatic sprinkler system per 903.2.8. Quickresponse sprinklers per 903.3.2420.3 Floors separating dwelling unitsShall be constructed as horizontal assemblies per711.420.2 Walls separating dwelling units Shall be constructed as fire partitions per 708Section Item Drawing CommentSPECIAL DETAILED REQUIREMENTS ON USE AND OCCUPANCY - Chapter 4311.3 Low-Hazard Storage, Group S-2 Accessory Occupancy per 508.2304.1 Business Group B Accessory Occupancy per 508.2310.3 Residential Group R-2Section Item Drawing CommentOCCUPANCY CLASSIFICATION - Chapter 3202 Definition of Grade PlaneAverage of finished ground level adjoining thebuilding at exterior walls. Lowest elevation within6' of the building or within property line if less th...202 Definition of Building HeightThe vertical distance from grade plane to theaverage height of the highest roof surface.202 Definition of Building Area The area on the inside surface of the exterior...Section Item Drawing CommentDEFINITIONS AND MEASUREMENTS - Chapter 2Bozeman Chapter 38 - Unified Development Code2023International Fire Code w/ amendments2021Uniform Plumbing Code w/ amendments2021National Electical Code w/ amendments2020ICC A117.1 Standard for Accessible and UsableBuildings and Facilities2017International Energy Conservation Code w/ amendments2021International Fuel Gas Code w/ amendments2021International Mechanical Code w/ amendments2021International Building Code w/ amendments2021Amendments are adopted from the AdministrativeRules of Montana (ARM)Title Date RemarksAPPLICABLE CODESBUILDING REQUIREMENTSZoning: R-5Subdivision Name: Karps Addition to BozemanSite: 36,752 sq ftBlock 6, Lots 1-3Bozeman, MTThe StandardNFPA 13 - 9.2.1.7 Concealed SpacesConcealed spaces filled with noncombustibleinsulation shall not require sprinkler protectionwith a maximum of 2" gap at top of the space...918.1Emergency ResponderCommunication CoverageRequired to be provided per IFC section 510.909.20 Smokeproof EnclosuresStair and elevator enclosures shall be designed tobe smokeproof enclosures.907.5.2.3.3 Fire AlarmsDwelling units shall be wired with the capability tosupport future visible alarms either wired orwirelessly.907.2.11.2 Smoke AlarmsLocated on ceiling or wall outside each separatesleeping area and within each room used forsleeping purposes. All alarms shall beinterconnected, wired to primary power withbattery back-up.907.2.9.2 Smoke AlarmsSingle- and multiple-station shall be installed inaccordance with Section 907.2.11.907.2.9.1 Manual fire alarm system Required907.1.2 Fire alarm shop drawingsPrepared in accordance with NFPA 72 shall besubmitted to AHJ for review and approval prior tosystem installation.906.9 Extinguisher InstallationThe clearance between the floor and the bottomof installed hand-held portable fire extinguishershall not be less than 4" and their tops ar notmore than 5' above the floor for extinguishersweighting 40 lbs or less.Table 906.3(1)Maximum distance of travel toextinguisher in common area75' serving a max. area of 11,250 sq ft. 2-ARating906.1 Fire ExtinguishersRequired for A/M/R/S-2 occupancies. If eachresidential unit contains a fire extinguisher with arating of 1-A:10-B:C then fire extinguishers in thecommon areas are not required.905.7.1 CabinetsCabinets containing fire-fighting equipment shallbe identified with permanently attached letters notless than 2" high in a contrasting color. Cabinetsshall be unlocked or covered in material that iseasily broken and allows access.905.4 Location of Class I StandpipeLocated in every required interior exit stairway.Hose connections shall be located at the mainfloor landing.905.3.1 Standpipe HeightClass I standpipes are allowed due to automaticsprinkler system.903.3.2 Quick Response Sprinklers Shall be installed in dwelling units903.3.1.1 NFPA 13 Sprinkler Systems Bathrooms less than 55 SF in area in dwellingunits do not require sprinklers901.6.3 Fire Alarm Systems Shall be monitored by an approved supervisingstation.901.6.1 Automatic Sprinkler Systems Shall be monitored by an approved supervisingstation.901.2 Fire Protection Systems Shall be installed, repaired, operated andmaintained in accordance with this code and theInternational Fire CodeSection Item Drawing CommentFIRE PROTECTION AND LIFE SAFETY SYSTEMS - Chapter 9806.7 Interior TrimCombustible trim, excluding handrails andguardrails, shall not exceed 10% of the wall orceiling area it is attached.804.4.2Interior Floor FinishRequirementsClass II - 0.22 watts/cm2 or greaterTable 803.13Wall and Ceiling FinishRequirementsClass C - Flame Spread Index 76-200;Smoke-Developed Index 0-450Section Item Drawing CommentINTERIOR FINISHES - Chapter 8718.2.2 - 718.2.7 Fireblocking locationsConcealed wall spaces per 718.2.2; Connectionsbetween horizontal and vertical spaces per718.2.3; between stair stringers per 718.2.4;Annular spaces around floor and ceiling openingsper 718.2.5; in rainscreen of exteior wall coveringper 718.2.6; and in sleeper spaces per 718.2.7718.2.1 Fireblocking MaterialsFireblocking materials shall consist of one of theitems in 718.2.1 items 1-9.717.6Duct Penetrations andHorizontal AssembliesDucts penetrating horizontal rated assembliesshall be protected by a shaft enclosure per 713unless it connects not more than 2 stories.Ducts penetrating corridor walls do not needsmoke dampers when constructed of 26 gagesteel minimum per Exception 2 and there are noopenings serving the corridor.717.5.4Duct Penetrations and FirePartitionsDucts penetrating corridor walls do not need firedampers with either a through wall penetrationdesigned per Section 714 or constructed of 26gage steel minimum per Exception 4.716.3 Opening Protection - GlazingGlazing in fire rated assemblies shall comply with716.3.Table 716.1(2) Opening Protection - Doors2 hour fire barriers require 90 minute doors withmaximum glazing of 100 square inches.1 hour corridor walls require 20 minute doors.Other 1 hour partitions require 45 minute doors.715 JointsJoints shall be designed to maintain the fire ratingof the wall, floor, ceiling, roof assembly. Joints upto 5/8" are allowed if they are tested inaccordance with ASTM E119 or UL 263.714.4.2 Membrane PenetrationsShall either be protected by steel boxes notexceeding 16 sq inches; listed electrical boxes;putty pads; or other listed materials and methods.Maximum gap of 1/8". Metal boxes cannot exceed100 sq inches in 100 sq feet.714 PenetrationsThrough penetrations shall be protectd by anapproved penetration firestop system per ASTME814 or UL1479 and shall have an F rating ofnote less than the required fire-resistance ratingof the assembly penetrated.713 Shaft EnclosuresShaft enclosures to comply with provisions ofSection 713 and shall be constructed as firebarriers per Section 707 and/or horizontal...711 Floor and Roof AssembliesRated floor/ceiling/roof assemblies to comply withSection 711. Dwelling unit separations shall notbe less than 1-hour (or 1/2 hour in Type IIIB...Fire partitions shall extend to the underside of thefloor/roof/ceiling assembly having not less thanthe fire-resistance rating of the fire partition.708 Fire PartitionsThe following wall assemblies shall beconstructed as fire partitions: Separation walls forgroup R occupancies; corridor walls, andvestibules. Partitions shall not have a rating ofless than 1 hour (or 1/2 hour in special...Fire barriers shall extend to the underside of thesheathing of the floor or roof above; or undersideof concrete slab.707 Fire BarriersRequired rated walls for occupancy, shaft, exitaccess stair way enclosures, horizontal exit wallconstruction shall comply with the provisions ofSection 707, including wall openings, MEPopenings, and joint sealantsIf Class C roofing is provided, roof sheathing mustbe non-combustible or FRT wood for 4' form wall.Not required at 1hr fire-rated ext walls terminatingat underside of roof sheathing.705.11 ParapetsNot required at non-rated exterior walls per fireseparation distance - Table 705.5.705.8 OpeningsProject will comply with Table 705.8 forunprotected openings in exterior walls with under20' Fire Separation Distance705.2.3.1 Balcony projectionsShall either be fire rated where required by Table601 for floor construction, made of heavy timberper 2304.11 or have sprinkler protection extendedto these areas.703.2 Wall and Floor AssembliesFire resistance shall be tested per ASTM E119 orUL263. Assemblies shall reference theappropriate UL assembly, GA-600 assembly, or...Section Item Drawing CommentFIRE AND SMOKE PROTECTION FEATURES - Chapter 71108.6.2.2.2 Type B Units All other units shall be Type B units.1108.6.2.2.1 Type A UnitsIn Group R-2 - 2% but not less than one shall bea Type A unit.1108Dwelling Units and SleepingUnitsDwelling units that are required to be accessible,Type A and B units shall comply with theapplication portions of Chapter 11 of ICC A117.11106.6 Van SpacesFor every six accessible parking spaces, 1 shallbe van accessible.Where at least one parking space is provided foreach dwelling unit, at least one accessible parkingspace shall be provided for each Type A unit.1106.3 Group R-2 ParkingAt least 2% of each type of parking spaceprovided shall be accessible.Section Item Drawing CommentSee the Accessibility Summary on Sheet A0.40.ACCESSIBILITY - Chapter 111031.2 Emergency Escape Not required.1020.5 Dead EndsThe length of the dead-end corridor shall notexceed 50'. 20' in A occupancies.Table 1020.3 Minimum Corridor Width Within a dwelling unit: 36"; otherwise 44"Table 1020.2 Corridor RatingMay be 1/2 hour rated, however units must beseparated from corridor by 1 hour rating.1017.3 Exit Access MeasurementExit access travel distance shall be measuredfrom the most remote point within a room alongthe natural and unobstructed path of horizontaland vertical egress travel to the entrance to an...S-2: 400'B: 300'Table 1017.2 Exit Access Travel Distance A/M/R: 250'1016.2 Exit through intervening spacesExits from stairs through accessory spaces arepermitted provided there is a discernable path ofegress to the exterior. Maximum 50% of exits canpass through intervening spaces.1015.8 Window OpeningsWindows in dwelling units where the top of the sillof an operable window opening is located lessthan 36" above the finished floor requires a limiterto reduce maximum opening to 4".1015.3 Guardrail Height Shall not be less than 42"1014.6 Handrail ExtensionsHandrails shall return to a wall, guard or walkingsurface or shall be continuous to the handrail ofan adjacent flight of stairs. Handrails shall extend12" beyond to top riser and continue to slope forthe depth of one tread beyond the bottom riser.1014.3 Handrail GraspabilityCircular handrails must be min 1 1/4" and 2" maxin diameter.1014.2 Handrail Height Handrails are to be placed between 34" and 38"1013.1 Exit SignsProvide exit signs for all exits and exit accessdoors. Signs must be readily visible from anydirection of egress travel and every 100 feet inaccess corridor.1011.12 Stairway to RoofIn buildings 4 or more stories, one stairway shallextend to the roof. Access may be by roof hatchand permanent ladder. Access can be throughroof hatch with a minimum size of 2'x8'.1011.11 HandrailsHandrails shall be on each side of stairway andshall comply with 1014.1011.5.2 Riser Height and Tread DepthRisers shall be between 4" and 7" and shall beuniform and not deviate more than 3/8" in anyflight of stairs. Treads shall be 11" min.1011.3 Stairway Headroom Minimum head clearance of not less than 80".1010.2.7 Stairway DoorsStairway exit doors are permitted to be lockedfrom the side opposite the egress side, providedthat they are openable from the egress side andcapable of being unlocked simultaneously withoutunlatching upon signal by emergency personnelfrom a single location inside the main entrance tothe building.1010.2.2 Door HardwareDoor handles, latches and other operatingdevices shall be installed 34" min and 48" maxabove the finished floor.1010.1.3 Door Opening ForceForce to unlatch door: NTE 15 pounds;Force to open interior unrated door: 5 pounds;Force to open rated and other swinging doors: 30pounds with 15 pounds to put in fully open...1010.1.2 Door SwingDoors swing in direction of egress when over 50occupants.1010.1.1 Size of doors 32" minimum clear opening.1009.8 Two-way communicationRequired at each elevator landing above the levelof exit discharge. Can provide dial-out capabilitiesin lieu of manned station.1009.2.1 Accessible Means of EgressRequires an elevator be part of an accessiblemeans of egress when 4 or more stories abovethe level of exit discharge. Areas of Refuge and48" between handrails is not required due tosprinkler system.1008.2.1 Means of Egress: Illumination1 footcandle at walking surface; 10 footcandles atexit stairways and elevator landings. Means ofegress should be illuminated in the event ofpower failure for not less than 90 miniutes.1007.1.1 Separation of exits1/3 of the maximum overall diagonal dimension ofthe area.Maximum common path ofEgress TravelA: 75 feet; B: 100 feet; R-2: 125 feet.Table 1006.2.1Maximum occupant load for oneexit.A, B: 49 peopleR-2: 20 people1005.7 EncroachmentDoors shall not reduce the width of the egresspath by more than 7"13,172/125 = 105 * 0.2 = 21"/2exits = 10.5" < 48" minprovided1005.3Stairway and Egress PathSizingWidth (in inches) = Occupant Load x 0.2;minimum width shall not be less than 44". Othermeans of egress can use 0.15 occupant load...1004.9 Posting of Occupant LoadAll assembly occupancies is to have the occupantload of the room posted in a conspicuous place.1004.7 Outdoor AreasOutdoor areas used exclusively for service of thebuilding needs only one means of egressTable 1004.5Max Floor Area Allowances perOccupantBusiness Areas 100 net; Lobby 15 net; Assembly:15 sf net; Exercise: 50 gross; Residential: 125gross. Refer to Life Safety Plans.1003.3.3 Horizontal ProjectionsObjects with leading edges more than 27" and notmore than 80" above the floor shall not projecthorizontally by more than 4" in the circulation...1003.2 Means of Egress: Ceiling Height 7'-6" minimumSection Item Drawing CommentMEANS OF EGRESS - Chapter 103003.1 Standby PowerAt least one elevator shall remain operable fromthe standby power source for 2 hours whenelevator is required to be accessible means of...3002.4 Ambulance StretcherIn buildings with four or more stories, at least oneelevator shall be provided for fire dept emergencyaccess to all floors. The elevator shall be sized toaccommodate an ambulance stretcher 24" x 84".3001.4Elevators as accessible meansof egressRequires an elevator be part of an accessiblemeans of egress when 4 or more stories abovethe level of exit discharge.3001.2Emergency ElevatorCommunication EquipmentSystemsEmergency elevator communication systems forthe deaf, hard of hearing and speech impaired.An emergency two-way communication systemshall be provided in accordance with theprovisions of ASME A17.1/CSA B44 and NFPA72.Section Item Drawing CommentELEVATORS AND CONVEYING SYSTEMS - Chapter 30Glazing in windows when all of the conditionsoccur: pane greater than 9SF; bottom edge lessthan 18" AFF; top edge is greater than 36" AFF;walking surfaces within 36" horizontally.2406.4 Hazardous LocationsGlazing in doors; glazing adjacent to a door within24" of the door.Section Item Drawing CommentGLASS AND GLAZING - Chapter 241505.1Roof membrane fireclassificationMinimum roof covering shall be a class C for TypeIIIB buiding type construction1502.2 Overflow drainsAre required where there is a potential for build-upof water.Section Item Drawing CommentROOF ASSEMBLIES AND ROOFTOP STRUCTURES - Chapter 151301.1 ScopeSee separate code analysis based on MontanaEnergy Code 2021 - Chapter 4 - CommercialEnergy EfficiencySection Item Drawing CommentENERGY EFFICIENCY - Chapter 131210 Bathrooms Public and common bathrooms to comply with1210.1208.3 Room Area Rooms shall comply with 1208.3.1208.2 Ceiling Height Rooms to comply with 1207.2. Occupiable spacesto have min 7'-6" ceilings. Storage rooms 7'-0"1204.1 LightingRooms shall be either naturally lit by windows thatare a minimum of 8% of the floor area or the roomor by artificial light providing an average of 10 fcat height of 30 inches.1202.1 VentilationBuildings shall be provided with mechanicalventilation in accordance with the IMCSection Item Drawing CommentINTERIOR ENVIRONMENT - Chapter 12Table C406.1(2) Additional EfficiencyRequirements5% heating efficiency improvement (1 pt); 5%cooling efficiency improvement (1 pt); 10%heating efficient improvement (2 pts); 10% coolingefficiency improvement (1 pt); On-site renewableenergy (7 pts); Dedicated outdoor Air system (7pts); Recoverable or renewable water heating (15pts); Efficient fossil fuel water heater (9 pts); Heatpump water heater (5 pts); Enhanced envelopeperformance (4 pts); Reduced air infiltration (6pts); Energy monitoring (1 pt); Fault detection anddiagnostics (1 pt).C406 Additional EfficiencyRequirementsBuildings shall achieve a total of 10 credits fromTable C406.1(2).C405 Electrical Power and LightingSystemsLighting power, lighting control systems, andelectrical energy consumption shall comply withC405. Sleeping unit lighting shall comply witheither Section 405.1.1 or C405.3C404 Service Water Heating Water heating equipment and hot water pipingshall comply with C404C403 Building Mechanical Systems Mechanical Systems shall comply with C403C402.5.2 Dwelling Unit Enclosure Testing Air leakage of the building thermal envelope shallbe tested for individual units as follows:- measured air leakage shall not exceed 0.30cfm/psf of the testing unit enclosure area at apressure differential of a 0.2 inch water gauge (50pa)- Units shall be tested separately with anunguarded blower door test and buildings 20 % ofunits shall be tested including a top floor, groundfloor and a unit with the largest testing unitenclosure area. For each unit that exceeds themaximum air leakage rate, two more units shall...C402.5.1.2 Continuous Air Barrier Compliance The continuous air barrier shall comply withsection C402.5.2 for Group R occupancies.C402.5.1 Air Barriers Provide a continous air barrier throughout thebuilding thermal envelope.C402.4.1 Maximum Area of Fenestration No including opaque doors should not exceed...Table C402.4 Building Envelope FenestrationMaximum U-factor and SHGCRequirementsU-factors:Fixed Fenestration: U=0.34Operable Fenestration: U=0.42Exterior Entrance Doors: U=0.63SHGC:Fixed: 0.38Operable: 0.34Table C402.1.3 Opaque Thermal EnvelopeInsulation Component MinimumRequirements, R-Value MethodInsulation entirely above roof deck: R-30ciAttic and Other: R49Wood framed walls: R-20 + R-3.8ciSlab on Grade: R-20 for 48" below grade or to topof footing. R-20 for 48" to the interior of the...C402.1 General Building thermal envelope complying with theprescriptive path must comply with the following:1. Opaque portions must meet specific insulationrequirements of C402.2 and the thermalrequirements of either C402.1.3, C402.1.4, orC402.1.5.2. Roof solar reflectance does not apply to Zone6B.3. Fenestration in building envelope assembliesshall comply with C402.4.4. Air leakage must meet C402.5.C401.3 Thermal Envelope Certificate A permanent thermal envelope certificate shall becompleted by an approved party. The Certificateshall include the following:1. R-values of all installed insulation.2. U-factors and SHGC or all fenestrations.3. Results from any building envelope air leakagetesting.C401.2.1 International EnergyConservation CodeCommercial buildings shall comply with one of thefollowing: 1. Prescriptive Compliance and 2. TotalBuilding Performance. This project will follow thePrescriptive Compliance path.Prescriptive Compliance - Comply with C402 -C406 and Section C408. Dwelling units withoutsystems serving multiple units will be consideredcompliant if they comply with R406.C301.1 Table C301.1 - Climate Zones Montana = 6BResidential Building For this code, includes detached one- andtwo-family dwellings and multiple single-familydwellings (townhouses) and Group R-2, R-3 andR-4 buildings three stories or less in height abovegrade plane.Chapter 2 Commercial Building All buildings that are not included in the definitionof residential building, which includes this project.Section Item Drawing CommentCOMMERCIAL ENERGY CODEINTERNATIONAL ENERGY CONSERVATION CODE (Montana Energy Code 2021)NO. DATE DESCRIPTION1 9/22/2023 ISSUED FOR SCHEMATIC DESIGN2 12/1/2023 ISSUED FOR SITE PLAN REVIEW013