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HomeMy WebLinkAbout011 - A0.30 - BUILDING CODE SUMMARYDrawn By: Checked By: Project Number: Sheet Number: © 2023 Solomon Cordwell Buenz BUILDING CODE SUMMARY 321 N 5TH AVE BOZEMAN, MT 59715 THE GUTHRIE AT 5TH AND VILLARD A0.30 MAD BS 2023029 713.4, 1023.2, 3002 Shaft Walls, Stair and Elevator Enclosures 2hrs where connecting 4-stories or more constructed as fire barriers per 707. Exterior walls may be reduced based on fire separation distance per Table 705.5) x ≥ 30: 0hr 10 ≤ x < 30: 1hr 5 ≤ x < 10: 1hr Table 705.5 Ext wall rating based on... x < 5: 1hr Roof construction: 1hr Floor construction: 1hr (not less than 1 hour when separating units per 711.2.4.3) Interior non-bearing walls: 0hr (not less than 1 hour when separating units per 708) Interior bearing walls: 1hr (not less than 1 hour when separating units per 708) Exterior bearing walls: 1hr Table 601 Fire Rating for Bldg Element Primary Structural Frame: 1hr Section Item Drawing Comment FIRE RESISTIVE RATINGS - Chapter 6/7 602.5 Type V-A Type V construction is that type of construction in which the structural elements, exterior walls and interior walls are of any materials permitted by this code. Section Item Drawing Comment CONSTRUCTION TYPE - Chapter 6 508.2 Accessory occupancies Aggregate area of accessory occupancies shall be no more than 10% of the floor area of the story in which they are located. 503.1.4 Occupied Roofs Not included in building height or number of stories or building area. Table 506.3.3 Frontage Increase I = 0.25 54,295 SF total building area 39,000 SF per floor allowed A = [36,000 + (12,000 x 0.25)] x 4 506.2.1 156,000 SF allowed Max Area Allowed for Type III-B per Single-Occupancy, Multistory Building Table 506.2 36,000 SF / V-A (per floor for 4-story NFPA13)Allowable Area Factor - SM Table 504.4 4-stories / V-A R occupancies are required to be protected by an automatic sprinkler system, sec 903.3.1.1. Table 504.3 70' Allowable Bldg Height / V-A Section Item Drawing Comment HEIGHT, STORIES AND AREA LIMITATIONS - Chapter 5 420.5 Fire Alarm and Smoke Alarms Provide in accordance with 907.2.6, 907.2.8, 907.2.9 and 907.2.11. 420.4 Sprinkler System Automatic sprinkler system per 903.2.8. Quick response sprinklers per 903.3.2 420.3 Floors separating dwelling units Shall be constructed as horizontal assemblies per 711. 420.2 Walls separating dwelling units Shall be constructed as fire partitions per 708 Section Item Drawing Comment SPECIAL DETAILED REQUIREMENTS ON USE AND OCCUPANCY - Chapter 4 311.3 Low-Hazard Storage, Group S-2 Accessory Occupancy per 508.2 304.1 Business Group B Accessory Occupancy per 508.2 310.3 Residential Group R-2 Section Item Drawing Comment OCCUPANCY CLASSIFICATION - Chapter 3 202 Definition of Grade Plane Average of finished ground level adjoining the building at exterior walls. Lowest elevation within 6' of the building or within property line if less th... 202 Definition of Building Height The vertical distance from grade plane to the average height of the highest roof surface. 202 Definition of Building Area The area on the inside surface of the exterior... Section Item Drawing Comment DEFINITIONS AND MEASUREMENTS - Chapter 2 Bozeman Chapter 38 - Unified Development Code 2023 International Fire Code w/ amendments 2021 Uniform Plumbing Code w/ amendments 2021 National Electical Code w/ amendments 2020 ICC A117.1 Standard for Accessible and Usable Buildings and Facilities 2017 International Energy Conservation Code w/ amendments 2021 International Fuel Gas Code w/ amendments 2021 International Mechanical Code w/ amendments 2021 International Building Code w/ amendments 2021 Amendments are adopted from the Administrative Rules of Montana (ARM) Title Date Remarks APPLICABLE CODES BUILDING REQUIREMENTS Zoning: R-5 Subdivision Name: Karps Addition to Bozeman Site: 36,752 sq ft Block 6, Lots 1-3 Bozeman, MT The Guthrie at 5th and Villard NFPA 13 - 9.2.1.7 Concealed Spaces Concealed spaces filled with noncombustible insulation shall not require sprinkler protection with a maximum of 2" gap at top of the space... 918.1 Emergency Responder Communication Coverage Required to be provided per IFC section 510. 909.20 Smokeproof Enclosures Stair and elevator enclosures shall be designed to be smokeproof enclosures. 907.5.2.3.3 Fire Alarms Dwelling units shall be wired with the capability to support future visible alarms either wired or wirelessly. 907.2.11.2 Smoke Alarms Located on ceiling or wall outside each separate sleeping area and within each room used for sleeping purposes. All alarms shall be interconnected, wired to primary power with battery back-up. 907.2.9.2 Smoke Alarms Single- and multiple-station shall be installed in accordance with Section 907.2.11. 907.2.9.1 Manual fire alarm system Required 907.1.2 Fire alarm shop drawings Prepared in accordance with NFPA 72 shall be submitted to AHJ for review and approval prior to system installation. 906.9 Extinguisher Installation The clearance between the floor and the bottom of installed hand-held portable fire extinguisher shall not be less than 4" and their tops ar not more than 5' above the floor for extinguishers weighting 40 lbs or less. Table 906.3(1) Maximum distance of travel to extinguisher in common area 75' serving a max. area of 11,250 sq ft. 2-A Rating 906.1 Fire Extinguishers Required for A/M/R/S-2 occupancies. If each residential unit contains a fire extinguisher with a rating of 1-A:10-B:C then fire extinguishers in the common areas are not required. 905.7.1 Cabinets Cabinets containing fire-fighting equipment shall be identified with permanently attached letters not less than 2" high in a contrasting color. Cabinets shall be unlocked or covered in material that is easily broken and allows access. 905.4 Location of Class I Standpipe Located in every required interior exit stairway. Hose connections shall be located at the main floor landing. 905.3.1 Standpipe Height Class I standpipes are allowed due to automatic sprinkler system. 903.3.2 Quick Response Sprinklers Shall be installed in dwelling units 903.3.1.1 NFPA 13 Sprinkler Systems Bathrooms less than 55 SF in area in dwelling units do not require sprinklers 901.6.3 Fire Alarm Systems Shall be monitored by an approved supervising station. 901.6.1 Automatic Sprinkler Systems Shall be monitored by an approved supervising station. 901.2 Fire Protection Systems Shall be installed, repaired, operated and maintained in accordance with this code and the International Fire Code Section Item Drawing Comment FIRE PROTECTION AND LIFE SAFETY SYSTEMS - Chapter 9 806.7 Interior Trim Combustible trim, excluding handrails and guardrails, shall not exceed 10% of the wall or ceiling area it is attached. 804.4.2 Interior Floor Finish Requirements Class II - 0.22 watts/cm2 or greater Table 803.13 Wall and Ceiling Finish Requirements Class C - Flame Spread Index 76-200; Smoke-Developed Index 0-450 Section Item Drawing Comment INTERIOR FINISHES - Chapter 8 718.2.2 - 718.2.7 Fireblocking locations Concealed wall spaces per 718.2.2; Connections between horizontal and vertical spaces per 718.2.3; between stair stringers per 718.2.4; Annular spaces around floor and ceiling openings per 718.2.5; in rainscreen of exteior wall covering per 718.2.6; and in sleeper spaces per 718.2.7 718.2.1 Fireblocking Materials Fireblocking materials shall consist of one of the items in 718.2.1 items 1-9. 717.6 Duct Penetrations and Horizontal Assemblies Ducts penetrating horizontal rated assemblies shall be protected by a shaft enclosure per 713 unless it connects not more than 2 stories. Ducts penetrating corridor walls do not need smoke dampers when constructed of 26 gage steel minimum per Exception 2 and there are no openings serving the corridor. 717.5.4 Duct Penetrations and Fire Partitions Ducts penetrating corridor walls do not need fire dampers with either a through wall penetration designed per Section 714 or constructed of 26 gage steel minimum per Exception 4. 716.3 Opening Protection - Glazing Glazing in fire rated assemblies shall comply with 716.3. Table 716.1(2) Opening Protection - Doors 2 hour fire barriers require 90 minute doors with maximum glazing of 100 square inches. 1 hour corridor walls require 20 minute doors. Other 1 hour partitions require 45 minute doors. 715 Joints Joints shall be designed to maintain the fire rating of the wall, floor, ceiling, roof assembly. Joints up to 5/8" are allowed if they are tested in accordance with ASTM E119 or UL 263. 714.4.2 Membrane Penetrations Shall either be protected by steel boxes not exceeding 16 sq inches; listed electrical boxes; putty pads; or other listed materials and methods. Maximum gap of 1/8". Metal boxes cannot exceed 100 sq inches in 100 sq feet. 714 Penetrations Through penetrations shall be protectd by an approved penetration firestop system per ASTM E814 or UL1479 and shall have an F rating of note less than the required fire-resistance rating of the assembly penetrated. 713 Shaft Enclosures Shaft enclosures to comply with provisions of Section 713 and shall be constructed as fire barriers per Section 707 and/or horizontal... 711 Floor and Roof Assemblies Rated floor/ceiling/roof assemblies to comply with Section 711. Dwelling unit separations shall not be less than 1-hour. Fire partitions shall extend to the underside of the floor/roof/ceiling assembly having not less than the fire-resistance rating of the fire partition. 708 Fire Partitions The following wall assemblies shall be constructed as fire partitions: Separation walls for group R occupancies; corridor walls, and vestibules. Partitions shall not have a rating of less than 1 hour (or 1/2 hour in special... Fire barriers shall extend to the underside of the sheathing of the floor or roof above; or underside of concrete slab. 707 Fire Barriers Required rated walls for occupancy, shaft, exit access stair way enclosures, horizontal exit wall construction shall comply with the provisions of Section 707, including wall openings, MEP openings, and joint sealants If Class C roofing is provided, roof sheathing must be non-combustible or FRT wood for 4' form wall. Not required at 1hr fire-rated ext walls terminating at underside of roof sheathing. 705.11 Parapets Not required at non-rated exterior walls per fire separation distance - Table 705.5. 705.8 Openings Project will comply with Table 705.8 for unprotected openings in exterior walls with under 20' Fire Separation Distance 705.2.3.1 Balcony projections Shall either be fire rated where required by Table 601 for floor construction, made of heavy timber per 2304.11 or have sprinkler protection extended to these areas. (No balconies are included in the current design) 703.2 Wall and Floor Assemblies Fire resistance shall be tested per ASTM E119 or UL263. Assemblies shall reference the appropriate UL assembly, GA-600 assembly, or... Section Item Drawing Comment FIRE AND SMOKE PROTECTION FEATURES - Chapter 7 1108.6.2.2.2 Type B Units All other units shall be Type B units. 1108.6.2.2.1 Type A Units In Group R-2 - 2% but not less than one shall be a Type A unit. 1108 Dwelling Units and Sleeping Units Dwelling units that are required to be accessible, Type A and B units shall comply with the application portions of Chapter 11 of ICC A117.1 1106.6 Van Spaces For every six accessible parking spaces, 1 shall be van accessible. Where at least one parking space is provided for each dwelling unit, at least one accessible parking space shall be provided for each Type A unit. 1106.3 Group R-2 Parking At least 2% of each type of parking space provided shall be accessible. Section Item Drawing Comment See the Accessibility Summary on Sheet A0.40. ACCESSIBILITY - Chapter 11 1031.2 Emergency Escape Not required. 1020.5 Dead Ends The length of the dead-end corridor shall not exceed 50'. 20' in A occupancies. Table 1020.3 Minimum Corridor Width Within a dwelling unit: 36"; otherwise 44" Table 1020.2 Corridor Rating May be 1/2 hour rated, however units must be separated from corridor by 1 hour rating. 1017.3 Exit Access Measurement Exit access travel distance shall be measured from the most remote point within a room along the natural and unobstructed path of horizontal and 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 spaces Exits from stairs through accessory spaces are permitted provided there is a discernable path of egress to the exterior. Maximum 50% of exits can pass through intervening spaces. 1015.8 Window Openings Windows in dwelling units where the top of the sill of an operable window opening is located less than 36" above the finished floor requires a limiter to reduce maximum opening to 4". 1015.3 Guardrail Height Shall not be less than 42" 1014.6 Handrail Extensions Handrails shall return to a wall, guard or walking surface or shall be continuous to the handrail of an adjacent flight of stairs. Handrails shall extend 12" beyond to top riser and continue to slope for the depth of one tread beyond the bottom riser. 1014.3 Handrail Graspability Circular handrails must be min 1 1/4" and 2" max in diameter. 1014.2 Handrail Height Handrails are to be placed between 34" and 38" 1013.1 Exit Signs Provide exit signs for all exits and exit access doors. Signs must be readily visible from any direction of egress travel and every 100 feet in access corridor. 1011.12 Stairway to Roof In buildings 4 or more stories, one stairway shall extend to the roof. Access may be by roof hatch and permanent ladder. Access can be through roof hatch with a minimum size of 2'x8'. 1011.11 Handrails Handrails shall be on each side of stairway and shall comply with 1014. 1011.5.2 Riser Height and Tread Depth Risers shall be between 4" and 7" and shall be uniform and not deviate more than 3/8" in any flight of stairs. Treads shall be 11" min. 1011.3 Stairway Headroom Minimum head clearance of not less than 80". 1010.2.7 Stairway Doors Stairway exit doors are permitted to be locked from the side opposite the egress side, provided that they are openable from the egress side and capable of being unlocked simultaneously without unlatching upon signal by emergency personnel from a single location inside the main entrance to the building. 1010.2.2 Door Hardware Door handles, latches and other operating devices shall be installed 34" min and 48" max above the finished floor. 1010.1.3 Door Opening Force Force to unlatch door: NTE 15 pounds; Force to open interior unrated door: 5 pounds; Force to open rated and other swinging doors: 30 pounds with 15 pounds to put in fully open... 1010.1.2 Door Swing Doors swing in direction of egress when over 50 occupants. 1010.1.1 Size of doors 32" minimum clear opening. 1009.8 Two-way communication Required at each elevator landing above the level of exit discharge. Can provide dial-out capabilities in lieu of manned station. 1009.2.1 Accessible Means of Egress Requires an elevator be part of an accessible means of egress when 4 or more stories above the level of exit discharge. Areas of Refuge and 48" between handrails is not required due to sprinkler system. Exception 1 does not require that the elevator be part of the accessible means of egress, and our project meets exception 1 by providing a fully sprinklered NFPA building and providing horizontal exits at each floor above level 1. 1008.2.1 Means of Egress: Illumination 1 footcandle at walking surface; 10 footcandles at exit stairways and elevator landings. Means of egress should be illuminated in the event of power failure for not less than 90 miniutes. 1007.1.1 Separation of exits 1/3 of the maximum overall diagonal dimension of the area. Maximum common path of Egress Travel A: 75 feet; B: 100 feet; R-2: 125 feet. Table 1006.2.1 Maximum occupant load for one exit. A, B: 49 people R-2: 20 people 1005.7 Encroachment Doors shall not reduce the width of the egress path by more than 7" 13,172/125 = 105 * 0.2 = 21"/2 exits = 10.5" < 48" min provided 1005.3 Stairway and Egress Path Sizing Width (in inches) = Occupant Load x 0.2; minimum width shall not be less than 44". Other means of egress can use 0.15 occupant load... 1004.9 Posting of Occupant Load All assembly occupancies is to have the occupant load of the room posted in a conspicuous place. 1004.7 Outdoor Areas Outdoor areas used exclusively for service of the building needs only one means of egress Table 1004.5 Max Floor Area Allowances per Occupant Business Areas 100 net; Lobby 15 net; Assembly: 15 sf net; Exercise: 50 gross; Residential: 125 gross. Refer to Life Safety Plans. 1003.3.3 Horizontal Projections Objects with leading edges more than 27" and not more than 80" above the floor shall not project horizontally by more than 4" in the circulation... 1003.2 Means of Egress: Ceiling Height 7'-6" minimum Section Item Drawing Comment MEANS OF EGRESS - Chapter 10 3003.1 Standby Power At least one elevator shall remain operable from the standby power source for 2 hours when elevator is required to be accessible means of egress. For this project, the elevator is NOT required to be an accessible means of egress per IBC 10009.2.1 Exception 1. 3002.4 Ambulance Stretcher In buildings with four or more stories, at least one elevator shall be provided for fire dept emergency access to all floors. The elevator shall be sized to accommodate an ambulance stretcher 24" x 84". 3001.4 Elevators as accessible means of egress Requires an elevator be part of an accessible means of egress when 4 or more stories above the level of exit discharge. 3001.2 Emergency Elevator Communication Equipment Systems Emergency elevator communication systems for the deaf, hard of hearing and speech impaired. An emergency two-way communication system shall be provided in accordance with the provisions of ASME A17.1/CSA B44 and NFPA 72. Section Item Drawing Comment ELEVATORS AND CONVEYING SYSTEMS - Chapter 30 Glazing in windows when all of the conditions occur: pane greater than 9SF; bottom edge less than 18" AFF; top edge is greater than 36" AFF; walking surfaces within 36" horizontally. 2406.4 Hazardous Locations Glazing in doors; glazing adjacent to a door within 24" of the door. Section Item Drawing Comment GLASS AND GLAZING - Chapter 24 1505.1 Roof membrane fire classification Minimum roof covering shall be a class C for Type IIIB buiding type construction 1502.2 Overflow drains Are required where there is a potential for build-up of water. Section Item Drawing Comment ROOF ASSEMBLIES AND ROOFTOP STRUCTURES - Chapter 15 1301.1 Scope See separate code analysis based on Montana Energy Code 2021 - Chapter 4 - Commercial Energy Efficiency Section Item Drawing Comment ENERGY EFFICIENCY - Chapter 13 1210 Bathrooms Public and common bathrooms to comply with 1210. 1208.3 Room Area Rooms shall comply with 1208.3. 1208.2 Ceiling Height Rooms to comply with 1207.2. Occupiable spaces to have min 7'-6" ceilings. Storage rooms 7'-0" 1204.1 Lighting Rooms shall be either naturally lit by windows that are a minimum of 8% of the floor area or the room or by artificial light providing an average of 10 fc at height of 30 inches. 1202.1 Ventilation Buildings shall be provided with mechanical ventilation in accordance with the IMC Section Item Drawing Comment INTERIOR ENVIRONMENT - Chapter 12 Table C406.1(2) Additional Efficiency Requirements 5% heating efficiency improvement (1 pt); 5% cooling efficiency improvement (1 pt); 10% heating efficient improvement (2 pts); 10% cooling efficiency improvement (1 pt); On-site renewable energy (7 pts); Dedicated outdoor Air system (7 pts); Recoverable or renewable water heating (15 pts); Efficient fossil fuel water heater (9 pts); Heat pump water heater (5 pts); Enhanced envelope performance (4 pts); Reduced air infiltration (6 pts); Energy monitoring (1 pt); Fault detection and diagnostics (1 pt). C406 Additional Efficiency Requirements Buildings shall achieve a total of 10 credits from Table C406.1(2). C405 Electrical Power and Lighting Systems Lighting power, lighting control systems, and electrical energy consumption shall comply with C405. Sleeping unit lighting shall comply with either Section 405.1.1 or C405.3 C404 Service Water Heating Water heating equipment and hot water piping shall comply with C404 C403 Building Mechanical Systems Mechanical Systems shall comply with C403 C402.5.2 Dwelling Unit Enclosure Testing Air leakage of the building thermal envelope shall be tested for individual units as follows: - measured air leakage shall not exceed 0.30 cfm/psf of the testing unit enclosure area at a pressure differential of a 0.2 inch water gauge (50 pa) - Units shall be tested separately with an unguarded blower door test and buildings 20 % of units shall be tested including a top floor, ground floor and a unit with the largest testing unit enclosure area. For each unit that exceeds the maximum air leakage rate, two more units shall... C402.5.1.2 Continuous Air Barrier Compliance The continuous air barrier shall comply with section C402.5.2 for Group R occupancies. C402.5.1 Air Barriers Provide a continous air barrier throughout the building thermal envelope. C402.4.1 Maximum Area of Fenestration No including opaque doors should not exceed... Table C402.4 Building Envelope Fenestration Maximum U-factor and SHGC Requirements U-factors: Fixed Fenestration: U=0.34 Operable Fenestration: U=0.42 Exterior Entrance Doors: U=0.63 SHGC: Fixed: 0.38 Operable: 0.34 Table C402.1.3 Opaque Thermal Envelope Insulation Component Minimum Requirements, R-Value Method Insulation entirely above roof deck: R-30ci Attic and Other: R49 Wood framed walls: R-20 + R-3.8ci Slab on Grade: R-20 for 48" below grade or to top of footing. R-20 for 48" to the interior of the... C402.1 General Building thermal envelope complying with the prescriptive path must comply with the following: 1. Opaque portions must meet specific insulation requirements of C402.2 and the thermal requirements of either C402.1.3, C402.1.4, or C402.1.5. 2. Roof solar reflectance does not apply to Zone 6B. 3. Fenestration in building envelope assemblies shall comply with C402.4. 4. Air leakage must meet C402.5. C401.3 Thermal Envelope Certificate A permanent thermal envelope certificate shall be completed by an approved party. The Certificate shall 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 leakage testing. C401.2.1 International Energy Conservation Code Commercial buildings shall comply with one of the following: 1. Prescriptive Compliance and 2. Total Building Performance. This project will follow the Prescriptive Compliance path. Prescriptive Compliance - Comply with C402 - C406 and Section C408. Dwelling units without systems serving multiple units will be considered compliant if they comply with R406. C301.1 Table C301.1 - Climate Zones Montana = 6B Residential Building For this code, includes detached one- and two-family dwellings and multiple single-family dwellings (townhouses) and Group R-2, R-3 and R-4 buildings three stories or less in height above grade plane. Chapter 2 Commercial Building All buildings that are not included in the definition of residential building, which includes this project. Section Item Drawing Comment COMMERCIAL ENERGY CODE INTERNATIONAL ENERGY CONSERVATION CODE (Montana Energy Code 2021) NO. DATE DESCRIPTION 1 9/6/2024 ISSUED FOR SITE PLAN REVIEW BUILDING FLOOR AREAS - BASED ON IBC FLOOR AREA DEFINITIONS GROUND LEVEL = 12,701 SF LEVEL 2 = 13,865 SF LEVEL 3 = 13,868 SF LEVEL 4 = 13,868 SF TOTAL BUILDING AREA = 54,303 SF