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HomeMy WebLinkAboutCode AnalysisGarfield County Building & Planning 108 8th St. Suite 401 Glenwood Springs, CO 81635 Project Description: BLCO-12-12-2719 Grand River Hospital District Date: Monday, 31 Dec 2012 Project Location: TBD Spencer Pkwy Construction by: FCI Constructors Architect: Davis Partnership Architects Engineer: Structural Consultants Code Study by: DB This code study is based on the 2009 International Building Code by ICC using Pian Analyst software. BASIC BUILDING DESCRIPTION: Type of Construction = IIB Building has an NFPA13 sprinkler system. System is used for allowable area(506.3) and height (504.2) Allowable area and height based on different uses not being separated by fire barriers. Most restrictive allowance. (508.3.2) ADDRESS IDENTIFICATION: Buildings shall be provided with approved address numbers or letters. Each character shall be a minimum 4 inches high and a minimum 0.5 inch wide. They shall be installed on a contrasting background and be plainly visible from the street or road. When the building address cannot be viewed from the public way, a monument, pole or other approved sign shall be used to identify the structure. (501.2) SITE DESCRIPTION: The north side has a lot line. (702.1) Distance to lot line = 400.0 The east side has a lot line. (702.1) Distance to lot line = 500.0 The south side has a lot line. (702.1) Distance to lot line = 95.0 The west side has a lot line. (702.1) Distance to lot line = 135.0 Perimeter of the entire building = 600.0 feet. Perimeter which fronts a public way or accessible open space = 300.0 feet. Minimum width of public way or accessible open space = 40.0 feet. The allowable area of this building is unlimited based on Section 507. HEIGHT OF BUILDING: Actual height of building = 38 Allowed building height = 55 The height is within the allowed height. (504.1 and Table 503) BUILDING INTERIOR: AREAS ON THE 2nd FLOOR Healthcare center: Occupancy Group = B Actual floor area = 23020 Allowed floor area = unlimited area (507) Number of occupants = 191.8 Based on 120 square feet per occupant. (1004.1.1) Minimum number of exits = 2 (1015.1) Minimum exit width = 38.4 inches. (1005.1) Common path of egress travel = .0 feet (1014.3 and 1015.1) The maximum length of exit access is 300 feet. (Table 1016.1) Actual travel distance not entered. Egress doors shall be of the pivoted or side -hinged swinging type. (1008.1.2) Egress doors shall swing in the direction of egress travel. (1008.1.2) Exception 5: Revolving doors complying with Section 1008.1.4.1 Exception 6: Horizontal sliding doors complying with Section 1008.1.4.3 Exception 7: Power -operated doors complying with Section 1008.1.4.2 Exception 9: Manually operated horizontal sliding doors are permitted from spaces with an occupant Page 12 load of 10 or less. Exits and exit access doors shall be marked by an approved exit sign readily visible from any direction of egress travel. (1011.1) There is no corridor in this area. 2nd FLOOR RESULTS: Area on this floor =23,020.0 T this floor is unlimited (507). Number of occupants = 191.8 Minimum number of exits = 2 (Table 1021.1) v Minimum door exit &j = 38.4 inches. (1005.1) Minimum stair exit width = 57.6 inches. (1005.1) There is no common path of egress travel. v The maximum length of exit access travel is 300.0 feet. (Table 1016.1) Actual egress travel = 210.0 Travel distance is ok. /Egress doors shall swing in the direction of egress travel. (1008.1.2) Exits and exit access doors shall be marked by an approved exit sign readily visible from any direction of egress travel. (1011.1) There is no corridor in this area. AREAS ON THE 1st FLOOR Healthcare center: Occupancy Group = B Actual floor area = 15915 Allowed floor area = unlimited area (507) Number of occupants = 132.6 Based on 120 square feet per occupant. (1004.1.1) Minimum number of exits = 2 (1015.1) Minimum exit width = 26.5 inches. (1005.1) Common path of egress travel = .0 feet (1014.3 and 1015.1) The maximum length of exit access is 300 feet. (Table 1016.1) Actual travel distance not entered. Egress doors shall be of the pivoted or side -hinged swinging type. (1008.1.2) Egress doors shall swing in the direction of egress travel. (1008.1.2) Exception 5: Revolving doors complying with Section 1008.1.4.1 Exception 6: Horizontal sliding doors complying with Section 1008.1.4.3 Exception 7: Power -operated doors complying with Section 1008.1.4.2 Exception 9: Manually operated horizontal sliding doors are permitted from spaces with an occupant load of 10 or less. Exits and exit access doors shall be marked by an approved exit sign readily visible from any direction of egress travel. (1011.1) There is no corridor in this area. lst FLOOR RESULTS: Area on this floor =15,915.0 The area on this floor is unlimited (507). Number of occupants = 132.6 Minimum number of exits = 2 (Table 1021.2, d.) Minimum door exit width = 26.5 inches. (1005.1) Minimum exit width to maintain exit width from floor above = 57,6 inches. (1005.1) There is no common path of egress travel. The maximum length of exit access travel is 300.0 feet. (Table 1016.1) Actual egress travel = 128.0 Travel distance is ok. Egress doors shall swing in the direction of egress travel. (1008.1.2) Exits and exit access doors shall be marked by an approved exit sign readily visible from any direction of egress travel. (1011.1) There is no corridor in this area. Total building and fire area of building (502.1 & 505.1) = 38,935.0 The area of this building is unlimited (507). EXIT WIDTH NOTES Exit width is in inches and based on Section 1005.1 Page 13 Width shown for all areas is based on other egress components. Width shown for 1st floor is based on other egress components. Width shown for other floors & basements is based on stairways. For the minimum width of doors, see Section 1008.1.1. EGRESS CONTINUITY The path of egress travel along a means of egress shall not be interrupted by any building element other than a means of egress component. (1003.6) EXIT SEPARATION: In areas where 2 exits are required, the minimum separation is 1/3 of the maximum diagonal of the area or floor measured in a straight line between exits or exit access doorways. (1015.2.1, Exception 2) Multiple means of egress shall be sized such that the loss of any one means of egress shall not reduce the available capacity by more than 50 percent. (1005.1) MEANS OF EGRESS ILLUMINATION: 1. The means of egress, including the exit discharge, shall be illuminated at all times the building space served by the means of egress is occupied. (1006.1) 2. The means of egress illumination shall not be less than 1 foot-candle at the walking surface level. (1006.2) See section 1006.3 for emergency power requirements. EXIT SIGNS Signs shall be placed where the exit or the path of egress travel is not immediately visible. No point in a corridor or passageway to be more than 100 feet from an exit sign. (1011.1) Exception 2: Main exterior exit doors which obviously and clearly are identifiable as exits need not be signed when approved. Exit signs shall be internally or externally illuminated. (1011.2) Exit sign shall be illuminated at all times including during loss of primary power. (1011.4 & 1011.5.3) ADDITIONAL DOORS: Where additional doors are provided for egress purposes, they shall conform to the requirements in Section 1008. (1008.1) LANDINGS AT DOORS: 1. There shall be a floor or landing on each side of a door. (1008.1.5) 2. Such floor or landing shall be at the same elevation on each side of the door. (1008.1.5) 3. The floor or landing shall not be more than 1/2 inch lower than the threshold. (1008.1.7) 4. Landings shall have a width not less than the width of the stairway or width of the doorway, whichever is the greater. Where a landing serves an occupant load of 50 or more, doors in any position shall not reduce the landing dimension to less than one half of the required width. The minimum length in the direction of exit travel is 44 inches. (1008.1.6) 5. The space between two doors in series shall be 48 inches plus the width of door swinging into the space. (1008.1.8) BOLT LOCKS: Manually operated flush bolts and surface bolts are not permitted. (1008.1.8.4) Exception 3: Where a pair of doors serves an occupant load of less than 50, manually operated edge - or surface -mounted bolts are permitted on the inactive leaf. The inactive leaf shall contain no doorknobs, panic bars or similar operating hardware. Exception 4: Manually operated edge- or surface -mounted bolts are permitted on the inactive leaf provided such inactive leaf is not needed to meet egress width requirements. The inactive leaf shall contain no doorknobs, panic bars or similar operating hardware. Exception 2: Where a pair of doors serves a storage or equipment room, manually operated edge- or surface -mounted bolts are permitted on the inactive leaf. Page 14 The unlatching of any door or leaf shall not require more than one operation. (1008.1.9.5) Exception 2: Where manually operated bolt locks are permitted. Exception 3: Doors with automatic flush bolts as permitted. LOCKS AND LATCHES: Egress doors shall be readily openable from the egress side without the use of a key or any special knowledge or effort. (1008.1.9) Locks and latches shall be permitted to prevent operation where any of the following exists: (1008.1.9.3) 2. The main door or doors in Group B, F, M and S areas are permitted to be equipped with key operating locking devices from the egress side provided: 2.1 The locking device is readily distinguishable as locked. 2.2 A readily visible durable sign is posted on the egress side stating: THIS DOOR TO REMAIN UNLOCKED WHEN BUILDING IS OCCUPIED 3. Where egress doors are used in pairs, automatic flush bolts shall be permitted to be used, provided the door leaf having the automatic flush bolts has no doorknob or surface -mounted hardware. 5. Fire doors after the minimum elevated temperature has disabled the unlatching mechanism. STAIRWAY REQUIREMENTS: 1. The minimum width of a stairway is 44 inches. (1009.1) Exception 1 If the occupant load is less than 50, the minimum width is 36 inches. Check floor exit requirements above to see if minimum width is greater than 44 inches. 2. The riser heights shall not be Tess than 4 inches or greater than 7 inches. The minimum tread depth is 11 inches. (1009.4.2) The maximum variation is 3/8 inch between the largest and the smallest in a stairway flight. (1009.4.4) Risers shall be solid. (1009.4.5) 3. Provide a handrail on each side of stairways. (1009.12) 4. Handrail height, measured above stair tread nosing, shall be not less than 34 inches and not more than 38 inches. (1012.2) Type I: Handrails with a circular cross section shall have an outside diameter of at least 1.25 inches and not greater than 2 inches or shall provide equivalent graspability. If the handrail is not circular, it shall have a perimeter dimension of at least 4 inches and not greater than 6.25 inches with a maximum cross-section dimension of 2.25 inches. (1012.3.1) Type 11: See Section 1012.3.2 for larger handrails.Handrail-gripping surfaces shall be continuous without interruption by newel post or other obstructions. (1012.4) Handrails shall return to a wall, guard or the walking surface or shall be continuous to the handrail of an adjacent stair flight. (1012.6) Where handrails are not continuous between flights, the handrails shall extend horizontally at least 12 inches beyond the top riser and continue to slope for the depth of one tread beyond the bottom riser. (1012.6) 5. The minimum headroom clearance is 80 inches (6 ft.- 8 inches.) measured vertically from a line connecting the edge of the nosing. Headroom shall be continuous to the point where the line intersects the landing below. The minimum clearance shall be maintained the full width of the stairway and landing. (1009.2) 6. Enclosed usable space under the stairs is required to be protected by 1 -hour fire -resistive construction or the fire -resistance rating of the stairway enclosure, whichever is greater. Access to the enclosed space shall not be directly from within the stair enclosure. (1009.6.3) 7. There shall be a floor or landing at the top and bottom of each stairway. Every landing shall have a minimum dimension measured in the direction of travel equal to the width of the stairway. Such dimension need not exceed 48 inches where the stairway has a straight run. (1009.5) When wheelchair spaces are required on the stairway landing, wheelchair space shall not be located in the required width of the landing. 8. A flight of stairs shall not have a vertical rise greater than 12 feet between floor levels or landings. (1009.7) Page 15 GUARDS: 1. Open sides of walking surfaces, including stairs, ramps and landings, which are located more than 30 inches above the floor or grade below are required to have a guard. (1013.1) 2. Guards and handrails shall be adequate in strength and attachment to resists a load of 50 pounds per linear foot applied in any direction at the top and to transfer this load through the supports to the structure.(1013.1 and 1607.7.1) • Handrails and guards shall be able to resist a single concentrated load of 200 pounds, applied in any direction at any point along the top, and transfer this load through the supports to the structure. (1607.7.1.1) 3. Intermediate rails, balusters and panel fillers shall be designed to withstand a horizontally applied normal load of 50 pounds on an area equal to 1 square foot, including openings and space between rails. Reactions due to this loading are not required to be superimposed with those of Sections 1607.7.1 or 1607.7.1.1. (1607.7.1.2) 4. The minimum height is 42 inches above the adjacent walking surfaces, adjacent fixed seating or the line connecting the leading edges of the treads. (1013.2) 5. Guards shall not have openings which allow passage of a sphere 4 inches in diameter from the walking surface to the required guard height. (1013.3) Exception 1: From the height of 36 inches to 42 inches, guards shall not have openings which allow passage of a sphere 4 3/8 inches in diameter. Exception 2: The triangular opening formed at the riser, tread and guardrail may be 6 inches. AREAS OF REFUGE: Areas of refuge are not required when an automatic sprinkler system is provided. (1007.3, Exception 3) STAIRWAY ENCLOSURES: See Exception 2 to shaft enclosures in Section 708.2 2. The openings into the exit enclosure are required to be 1 hour fire assemblies. (Table 715.4) Openings into enclosure are limited to those necessary for exit access to the enclosure from normally occupied spaces and for egress from the enclosure. (1022.3) Doors shall be self-closing or automatic closing. (715.4.8) 3. Exit enclosure must discharge directly to the exterior of the building. (1022.2 & 1027.1) Exception: An exit enclosure shall be permitted to terminate at an exit passageway that terminates at an exit discharge or public way. A maximum of 50 percent of the number and capacity may exit through areas on the level of discharge provided Exception 1 or 2 is met: (1027.1) Exception 1: 1.1 There is a free and unobstructed way to the exterior that is readily visible and identifiable from the exit enclosure. Exception 1: 2.2 The depth from the exterior of the building is not greater than 10 feet and the length is not greater than 30 feet. 2.3 The vestibule is separated from the remainder of the level of exit discharge by construction providing at least the equivalent of approved wired glass in steel frames. 2.4 The vestibule is used only for means of egress and exits directly to the outside. 4. An exit enclosure shall not be used for any purpose other than means of egress. (1022.1) Note: Where interior exit enclosures are extended to the exterior of the building by an exit passage way, fire -resistance of the exit passage way shall be the same as the enclosure. (1022.2, Exception) 1. Stairways are required to be enclosed with 1 hour fire barriers. (1022.1) BUILDING ACCESSIBILITY 1. In addition to accessible entrances required by Sections 1105.1.1 through 1105.1.6, at least 60 percent of all public entrances shall be accessible. (1105.1) 2. At least one accessible entrance shall be provided to each tenant, dwelling unit and sleeping unit in a facility. (1105.1.6) Page 16 3. Where parking is provided, accessible parking spaces shall be provided in compliance with Table 1106.1 (1106.1) See additional requirements for outpatieht and rehabilitation facilities. (1106.3 and 1106.4) 4. At least one accessible route shall connect each accessible level. (1104.4) See exceptions. 5. Accessible routes shall coincide with or be located in the same area as a general circulation path. Where the circulation path is interior, the accessible route shall also be interior. (1104.5) 6. On floors where drinking fountains are provided, no fewer than two drinking fountains shall be provided. One drinking fountain shall comply with the requirements for people who use a wheelchair and one drinking fountain shall comply with the requirements for standing persons. (1109.5.1) Exception: A single drinking fountain that complies with both requirements shall be permitted. Where more than 2 drinking fountains are provided, at least 50% shall be accessible. (1109.5.2) Exception: Where 50% yields a fraction, the number may be rounded up or down. Total must be equal to 100% or required. FIRE -RESISTANCE RATING FOR EXTERIOR WALLS: North Side: Group B - Bearing walls = 0 -hr Nonbearing walls = 0 -hr rating on the inside. (705.5, Tables 601 & 602) Parapet not required. (705.11, Exception 3) No limit on unprotected openings. There is no limit on protected openings. (Table 705.8) East Side: Group B - Bearing walls = 0 -hr Nonbearing walls = 0 -hr rating on the inside. (705.5, Tables 601 & 602) Parapet not required. (705.11, Exception 3) No limit on unprotected openings. There is no limit on protected openings. (Table 705.8) South Side: Group B - Bearing walls = 0 -hr Nonbearing walls = 0 -hr rating on the inside. (705.5, Tables 601 & 602) Parapet not required. (705.11, Exception 3) No limit on unprotected openings. There is no limit on protected openings. (Table 705.8) West Side: Group B - Bearing walls = 0 -hr Nonbearing walls = 0 -hr rating on the inside. (705.5, Tables 601 & 602) Parapet not required. (705.11, Exception 3) No limit on unprotected openings. There is no limit on protected openings. (Table 705.8) FIRE -RESISTANCE RATING REQUIREMENTS:(Table 601 except as noted) Exterior walls . Minimum fire resistance rating = FIRE -RESISTANCE RATING FOR EXTERIOR WALLS above Primary structural frame must be noncombustible. Minimum fire resistance rating = 0 hour Interior bearing wall must be noncombustible. Minimum fire resistance rating = 0 hour Interior nonbearing wall must be noncombustible. Minimum fire resistance rating = 0 hour Fire -retardant treated wood shall be permitted in: (603.1 #25 25.1 Nonbearing partitions where the required fire -resistance rating is two hours or less. 25.2 Nonbearing exterior walls where no fire rating is required. 25.3 Roof construction, including girders, trusses, framing and decking. Partitions dividing portions of stores, offices or similar places occupied by one tenant only and do not establish a corridor or serve an occupant load of 30 or more may be: 1. constructed of fire retardant treated wood 2. one hour fire resistive construction 3. wood panels or similar up to six feet in height. (603.1, 10) Floor/ceiling assembly must be noncombustible. Minimum fire resistance rating = 0 hour Roof/ceiling assembly must be noncombustible. Minimum fire resistance rating = 0 hour Page 17 Fire -retardant -treated wood shall be allowed in buildings including girders and trusses as part of the roof construction. (Table 601, b.) Shaft Enclosure must be noncombustible. Minimum fire resistance rating = 1 hour Stairs must be noncombustible. Minimum fire resistance rating = 0 hour MARKING AND IDENTIFICATION: Fire walls, fire barriers, fire partitions, smoke barriers and smoke partitions or any other wall required to have protected openings or penetrations shall be effectively and permanently identified. (703.6) Identification shall be located in accessible concealed floor, floor -ceiling or attic spaces; Be repeated at intervals not exceeding 30 feet; and Suggested wording: 'FIRE AND/OR SMOKE BARRIER - PROTECT ALL OPENINGS' Fire Partitions: The following wall assemblies shall comply. (709.1) Fire partitions shall have a fire -resistance rating of not less than 1 -hour. (709.3) See exceptions. Fire partitions shall extend from the top of the foundation or floor/ceiling assembly below to the underside of the floor or roof sheathing, slab or deck above or to the fire -resistive -rated floor/ceiling or roof/ceiling assembly above. (709.4) The supporting construction shall be protected to afford the required fire -resistance rating of the wall supported, except for tenant and sleeping unit separation wall and corridor walls. See exceptions. A 1 -hour fire -resistive rating is required for smoke barriers. (710.3) Smoke barriers shall form an effective membrane continuous from outside wall to outside wall and from the top of the foundation or floor/ceiling assembly below to the underside of the floor or roof sheathing, deck or slab above, including continuity through concealed spaces. (710.4) See Section 710.5 for opening requirements. PENETRATIONS OF FIRE RESISTIVE ASSEMBLIES: WALLS ASSEMBLIES: Through penetrations of walls shall comply Section 713.3.1.1 or 713.3.1.2. 1. Penetrations shall be installed as tested in the fire resistance rated assembly. (713.3.1.1) 2. Penetrations shall be protected by an approved penetration firestop system. (713.3.1.2) Exception: Steel, ferrous or copper pipes or steel conduits. See IBC for limitations. Membrane penetrations of walls: The requirements are the same as for through penetrations. (713.3.2) Exceptions: 1. Steel electrical outlet boxes that do not exceed 16 square inches provided that the area of such openings does not exceed 100 square inches for any 100 square feet of wall area. Boxes on opposite sides of the assembly shall be separated by a horizontal distance of not less than 24 inches. 2. Listed electrical boxes. 3. Sprinklers with metal escutcheon plates. FLOOR/CEILING AND ROOF/CEILING ASSEMBLIES: Through penetrations of floor/ceiling and roof/ceiling assemblies shall comply Section 713.4.1.1 or 713.4.1.2. 1. Through penetrations shall be installed as tested in an approved fire resistance rated assembly. (713.4.1.1) 2. Penetrations shall be protected by an approved penetration firestop system of not less than 1 hour but not less than the required rating of the floor penetrated. (713.4.1.2) Exceptions: 1. Steel, ferrous or copper conduits, pipes, tubes and vents through a single concrete floor. See IBC for limitations. 2. Electrical outlet boxes that have been tested for use in fire -assemblies. Page 18 Membrane penetrations of fire -resistive horizontal assemblies: The requirements are the same as for through penetrations. (713.4.2) Exceptions: 1. Steel, ferrous or copper conduits, electrical outlet boxes, pipes, tubes and vents through concrete or masonry. See IBC for limitations. 2. Electrical outlet boxes that have been tested for use in fire -assemblies. 3. Sprinklers with metal escutcheon plates. DUCTS AND AIR TRANSFER OPENINGS: Dampers shall be accessible for inspection and servicing. (716.4) Where required. (716.5) , Fire walls (716.5.1), Fire barriers (716.5.2), Shaft enclosures (716.5.3), Fire partitions (715.5.4) and Smoke barriers (715.5.5) REQUIRED SEPARATION OF OCCUPANCIES: (508.4.4 & Table 508.4) Uses are not separated by fire barriers. The construction of the building is based on the most restrictive use. (508.3.3) SEPARATION OF INCIDENTAL USE AREAS: (Table 508.2.5) Furnace rooms where any piece of equipment is over 400,000 BTU per hour input = Smoke barrier (508.2.2.1) Rooms with any boiler over 15 psi and 10 horsepower = Smoke barrier (508.2.5.2) Refrigerant machinery rooms = Smoke barrier (508.2.2.1) Hydrogen cut-off rooms not classified as Group H = 1 hour Incinerator rooms = 2 hours and an automatic sprinkler system Stationary lead -acid battery systems having a liquid capacity of more than 100 gallons used for facility standby power, emergency power or uninterrupted power supplies. = 1 hour Rooms containing fire pumps = 1 hour ROOFING REQUIREMENTS: 1. The roofing on this building is required to be Class C or better. (Table 1505.1) When provided, fire pumps shall be located in rooms that are separated from all other areas by 2 -hour fire barrier construction. (913.2.1) Exception: Separation by 1 -hour fire barriers is permitted in buildings equipped throughout with an automatic sprinkler system. PORTABLE FIRE EXTINGUISHERS: Portable fire extinguishers are required. (906.1) Exception: When equipped throughout with quick response sprinklers, portable fire extinguishers shall be required only in locations specified in Items 2 through 6 in Section 906.1 See Section 906.1 and Table 906.1 for location requirements. See Section 906.3 for size and distribution requirements. STANDPIPE AND HOSE SYSTEMS: Class III standpipe systems shall be installed throughout buildings where the floor level of the highest story is located more than 30 feet above the lowest level of fire department vehicle access. (905.3.1) Exception: Class I standpipes are allowed in buildings with an automatic sprinkler system. See sections 905.4, 905.5 and 905.6 for required locations. See section 905.7 for cabinet requirements. FIRE ALARM AND DETECTION SYSTEMS: A manual fire alarm system is required. (907.2.2) Exception: Manual alarm boxes are not required if the notification appliances will activate upon sprinkler waterflow. Page 19 See Section 907.4 for additional information about system. ACCESSIBLE FACILITIES: Except as noted, section numbers listed below are from ICC/ANSI A117.1-2003 WATER FOUNTAINS AND WATER COOLERS: Accessible units must comply with the following: 1. Spout outlets for wheelchair accessible fountains shall be 36 inches maximum above the floor. Spout outlets for standing persons shall be 38 inches minimum and 43 inches maximum. (602.4) 2. The spout shall be located 15 inches minimum from the vertical support and 5 inches maximum from the front edge, including bumpers. Where only a parallel approach is provided, the spout shall be located 3 1/2 inches maximum from the front edge, including bumpers. (602.5) 3. Spouts shall provide a flow of water 4 inches height minimum. (602.6) TOILET FACILITIES: 1. A 60 inch diameter turning space or T-shaped space is required in the toilet room. (603.2.1 and 304.3) Doors shall not swing into the clear floor space for any fixture. (603.2.3) See exception for rooms used for individual use. 2. Water closet shall be mounted adjacent to a side wall or partition. The distance from the side wall or partition to the centerline of the water closet shall be 16 to 18 in. (604.2) 3. When the accessible water closet is not in a compartment: Clearance around the water closet shall be 60 inches minimum, measured perpendicular to the side wall, and 56 inches minimum, measured perpendicular to the rear wall. (604.3.1) 4. When the accessible water closet is in a compartment: Wheelchair accessible compartments shall be 60 inches wide minimum measured perpendicular to the side wall, and 56 inches deep minimum for wall hung water closets and 59 inches deep for floor mounted water closets, measured perpendicular to the rear wall. (604.8.2) Compartment doors shall not swing into the minimum required compartment area. (604.8.3) 5. Grab bars shall have a circular cross section with a diameter of 1 1/4 inch minimum and 2 inches maximum, or shall provide equivalent graspability. (609.2) The space between the wall and the grab bar shall be 1 1/2 inches. (609.3) Grab bars shall be mounted in a horizontal position 33 inches minimum and 36 inches maximum above the floor. (609.4) a. Side wall grab bars are required to start within 12 inches of the backwall and extend to 54 inches from the back wall. The minimum length of the bar is 42 inches. (604.5.1) b. The rear bar shall be 24 in long minimum, centered on the water closet. Where space permits, the bar shall be 36 inches long minimum, with the additional length provided on the transfer side. (604.5.2) 6. The top of the water closet seats shall be 17 to 19 inches above the floor. (604.4) 7. Accessible urinals shall be of the stall type or wall hung with the rim at 17 inches maximum above the floor. (605.2) 8. Accessible lavatories shall be mounted with the rim 34 inches maximum above the floor. (606.3) 9. Sinks shall be 11 inches deep maximum. (606.5) 10. Water supply and drain pipes under lavatories shall be insulated or otherwise treated to protect against contact. (606.6) 11. Mirrors located above lavatories, sinks or counters shall be mounted with the bottom edge of the reflecting surface 40 inches maximum above the floor. (603.3) LIGHT AND VENTILATION: 1. Every space intended for human occupancy shall be provided with natural Tight by means of exterior glazed openings or shall be provided with artificial light. (1205.1) When natural light is provided, the minimum net glazed area shall not be less than 8% of the floor area. (1205.2) Any room is permitted to be considered as a portion of an adjoining room where one half of the area of the common wall is open and unobstructed and provides not less than one tenth of the floor area or 25 square feet, whichever is greater. (1205.2.1) Page 20 When artificial light is used, it must provide an average illumination of 10 foot candles over the area of the room at a height of 30 inches above the floor. (1205.3) 2. Buildings shall be provided with natural ventilation or mechanical ventilation per the International Mechanical Code. (1203.1) Natural ventilation of an occupied space shall be through windows, doors, louvers or other openings to the outdoors. (1203.4) The minimum openable area to the outdoors shall be 4 percent of the floor area. (1203.4.1) Any room is permitted to be considered as a portion of an adjoining room where unobstructed openings are provided that have an area not less than 8% of the floor area of the interior room but no less than 25 square feet. (1202.3.1.1) When openings are below grade, clear space measured perpendicular to the opening shall be one and one half times the depth of the opening. (1203.4.1.2) 3. Rooms containing bathtubs, showers, spas and similar bathing fixtures shall be mechanically ventilated. (1203.4.2.1) GLAZING REQUIREMENTS: All glazing in hazardous cations is required to be of safety glazing material. (2406.1) Locations: (2406.4) 1. Glazing in swinging doors except jalousies. 2. Glazing in fixed and sliding panels of sliding door assemblies and panels in sliding and bifold closet door assemblies. 3. Glazing in storm doors. 4. Glazing in all unframed swinging doors. 5. Glazing in doors and enclosures for hot tubs, whirlpools, saunas, steam rooms, bathtubs and showers. Glazing in any portion of a building wall enclosing these compartments where the bottom exposed edge of the glazing is Tess than 60 inches above a standing surface. 6. Glazing in fixed or operable panels adjacent to a door where the nearest exposed edge of the glazing is within a 24-inch arc of either vertical edge of the door in a closed position and where the bottom exposed edge of the glazing is less than 60 inches above the walking surface. Exception: Panels where there is an intervening wall or other permanent barrier between the door and glazing. 7. Glazing in an individual fixed or operable panel, other than those locations described in items 5 and 6 above, which meets all of the following conditions: 7.1 Exposed area of an individual pane greater than 9 square feet. 7.2 Exposed bottom edge less than 18 inches above the floor. 7.3 Exposed top edge greater than 36 inches above the floor. 7.4 One or more walking surfaces within 36 inches horizontally of the plane of the glazing. See Exceptions. 8. Glazing in guards and railings regardless of the area or height above a walking surface. 9. Glazing in walls and fences enclosing indoor and outdoor swimming pools, hot tubs and spas where all of the following are present: 9.1 The bottom edges of the glazing on the pool or spa side is less than 60 inches above the walking surface. 9.2 The glazing is within 60 inches of the water's edge. 10. Glazing adjacent to stairways, landings and ramps within 36 inches horizontally of a walking surface when the glass is less than 60 inches above the plane of the walking surface. 11. Glazing adjacent to stairways within 60 inches horizontally of the bottom tread of a stairway in any direction when the exposed glass is less than 60 inches above the nose of the tread. See Exceptions. WALL AND CEILING FINISH: 1. Wall and ceiling finish materials are required to comply with Sec. 803.9 and Table 803.9. 2. Textile wall and ceiling coverings shall have Class A flame spread index and shall be protected by automatic sprinklers or meet the criteria in Section 803.5, 803.6 and 803.1.4. 3. Expanded vinyl wall coverings shall comply with the requirements for textile wall and ceiling materials. (803.7) 4. Toilet room floors shall have a smooth, hard nonabsorbent surface that extends upward onto the Page 21 walls at least 4 inches. (1210.1) 5. Walls within 2 feet of urinals and water closets shall have a smooth, hard nonabsorbent surface, to a height of 4 feet above the floor. (1210.2) CEILING HEIGHTS: Occupiable spaces, habitable spaces and corridors shall have a ceiling height of not less than 7 feet 6 inches. Bathrooms, toilet rooms, kitchens, storage rooms and laundry rooms shall be permitted to have a ceiling height of not less than 7 feet. (1208.2) INSULATION NOTES: 1. Insulating materials shall have a flame -spread rating of no more than 25 and a smoke developed index of not more than 450. (719.2) 'concealed installation' and Sec. 719.3 'exposed installation' Foam plastic insulations are required to be protected. (2603) Page 22