NATIONAL BUILDING CODE PHILIPPINES PDF
WHEREAS, while there is Republic Act. No. , entitled “An Act to Ordain and. Institute a National Building Code of the Philippines”, the same does not. REGULATIONS. OF THE. NATIONAL BUILDING CODE. OF THE PHILIPPINES. ( PD ). OFFICIAL TEXT. REVISED EDITION. INCLUDES. • NBCDO. 3/31/ National Building Code Philippines Chapter 1 General Provisions Philippine Architecture College and University Notes UST UPD FEU UE S.
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THE PHILIPPINES and· Its Revised Implementing- Rules and Regulations .. (NOTE: The table of contents for the National Building Code and the Law to. The New National Building Code - Free download as Word Doc .doc), PDF File BUILDING CODE OF THE PHILIPPINES (P.D. ) referred to as the IRR. 2. National Building Code of the Philippines: and, Its revised implementing rules and regulations approved by the Department of Public Works and Highways on.
Repair of non-load bearing partition walls 3. Repair of any interior portion of a house not involving addition or alteration 4. In case the applicant is the registered owner of the lot: Tax Declaration 3. Current Real Property Tax Receipt 2. In case the applicant is not the registered owner of the lot in addition to the above: Duly notarized copy of the Contract of Lease or Sale 2.
Duly notarized copy of the Deed of Absolute Sale. Five sets of survey plans, design plans, specifications signed and sealed by: Architect, in case of architectural documents 2.
Professional Electrical Engineer, in case of electrical documents 4. Professional Mechanical Engineer, in case of mechanical documents 5. Sanitary Engineer, in case of sanitary documents 6. Master Plumber, in case of plumbing documents 7.
Electronics Engineer, in case of electronics documents 8. Interior Designer, in case of interior design documents Geodetic Engineer, in case of lot survey documents. Non-issuance, Suspension or Revocation of Building Permit 1. Errors found in the plans and specifications 2.
Incorrect or inaccurate data or information supplied 3. Non-compliance with the pertinent provisions of the Code and its IRR. Terms and Conditions of Permits 1. Submitted plans and specifications shall not be changed, modified or altered without the approval of the BO. A building permit shall become null and void if the work is not commenced within one year and if suspended or abandoned for days. The owner shall submit to the BO 1. As-built plans and specifications signed and sealed by the design professionals, supervisor and contractor.
Changes, alterations and amendatory permit. Definitions 1. Fire-Resistive Regulations 1. Indigenous family dwelling units 2. Division A-2 residential buildings for the exclusive use of non-leasing occupants not exceeding 10 persons. Leased single detached dwelling unit, cottage with more than one independent unit and duplexes 3. Division D-I institutional where personal liberties of inmates are restrained or quarters of those rendering public assistance and maintaining peace and order.
Division E-I business and mercantile where no work is done except change of parts and maintenance requiring no open flames, welding or use of highly flammable liquids. Division E-3 business and mercantile where no repair work is done except exchange of parts and maintenance requiring no open flames, welding or use of highly flammable liquid.
Division G-1 Medium Industrial which shall include storage and handling of hazardous and highly flammable materials. Division G-3 Medium Industrial buildings for wood working activities, paper cardboard manufacturers, textile and garment factories. Division H-1 Recreational, which are assembly buildings with stage and having an occupant load of less than 1, Theaters and auditoriums 2. Division H-2 Recreational which are assembly buildings with stage and having an occupant load of or more.
Division H-3 Recreational which are assembly buildings with stage and having an occupant load of less than The occupant load of any area having fixed seats shall be determined by the number of fixed seats installed. Percentage of the maximum allowable enclosed floor area of any building at the ground floor in relation to the TLA.
Table VIII. General Provisions 1. Every building shall be designed, constructed and equipped to provide adequate light and ventilation 2. All buildings shall face a street or public alley or a private street which has been duly approved. No building shall be altered nor arranged so as to reduce the size of any room or the relative area of windows to less than that provided for buildings, or to create an additional room unless it conforms to the requirements of this Rule.
No building shall be enlarged so that the dimensions of the required court or yard would be less than what is prescribed for such building lot. Maximum site occupancy shall be governed by use, type of construction and height of the building and the use, area, nature and location of the site and subject to local zoning requirements.
Group A buildings or Residential 1 R-! Minimum horizontal dimension of courts and yards shall be not less than two m. Abutments on the side and rear property lines may be allowed provided that the following requirements are first complied with: Window opening as prescribed in Section 10 3.
Firewall with a minimum of two hours fire-resistive rating constructed with a minimum height clearance of 0. The required open space shall be located totally or distributed anywhere within the lot in such a manner as to provide maximum light and ventilation into the building Fig. Every court shall have a width of not less than 2 m for one or two storey buildings, however this may be reduced to 1. For buildings of more than two storeys in height, the minimum width of the rear or side court shall be increased at the rate of mm for each additional storey up to the fourteenth storey.
For buildings exceeding 14 storeys in height, the required width of the court shall be computed on the basis of 14 storeys. Ceiling Heights 1. Habitable rooms provided with artificial ventilation shall have ceiling heights not less than 2. For buildings of more than 1 storey, the minimum ceiling height of the first storey shall be 2. Above-stated rooms with natural ventilation shall have ceiling heights of not less than 2.
Mezzanine floors shall have a clear ceiling height of not less than 1. Sizes and Dimension of Rooms 1. Minimum sizes of rooms and their least horizontal dimensions shall be as follows: Window Openings 1. Such windows shall open directly to a court, yard, public street or alley or open watercourse. Eaves, canopies, awnings over required windows shall not be less than mm from the side and rear property lines. All buildings shall face a public street, alley or a road.
IMPLEMENTING RULES AND REGULATIONS
All buildings shall be provided with adequate and potable water supply, plumbing installation and suitable wastewater treatment or disposal system, storm water drainage, pest and vermin control, noise abatement device and other measures for protection and promotion of health of persons occupying the premises and others living nearby. The horizontal clearance between the outermost edge of marquee and the curb line shall be not less than mm while the vertical clearance shall be not less than 3.
No person shall use or occupy a street, alley or public sidewalk for the performance of work covered by a building permit except in accordance with the provisions of this Rule. All buildings shall be placed in or upon private property or duly designated public land and shall be securely constructed in conformance with the requirements of this Code.
Flag for inappropriate content. Related titles. Jump to Page. Search inside document. Title 1. Declaration of Policy 2. Scope and Application 3. Fees 1. Height 4. Administrative Sanctions 4. Impositions of administrative fines, surcharges and penalties 5. Failure to submit the original design plans stamped by the BO or the as-built plans prior to renovation, alteration, conversion or any change affecting structural stability, architectural presentability and type of construction 6.
Failure to submit the logbook, duly notarized Certificate of Completion, as-built plans and specifications, and building inspection sheets 7. Unauthorized change, modification or alteration in the approved plans and specifications or in the type of construction 3. Unauthorized change during construction from the approved plans and specifications 8. Collapsible awnings shall be so designed that they shall not block required when collapsed. The face of the triangle so formed shall be at right angles to the bisector of the angle of intersection of the street lines; Provided, That, in no case, shall the length of the chaflan be less than 4.
In special cases, the Building Official shall determine the size and form of the chaflan. Chapter 6. This protection shall be maintained while such work is being done and shall not obstruct the normal functioning of any such utility. Adequate signs and railings shall be provided to direct pedestrian traffic. Pedestrian traffic shall be protected by a railing on the street side when the walkway extends into the roadway, by a railing when adjacent to excavations, and by such other appropriate portion such as set forth in Table 6.
Railings shall be built substantially and should be at least 1. Fences shall be built of an approved material, not less than 2. Fences shall enclose entirely the building site. Openings in such fences shall be provided with doors which shall be kept closed at all times.
The protective canopy shall have a clear height of 2. Every canopy shall have a solid fence built along its entire length on the construction side. If materials are stored or work is done on top of the canopy, the edge along the street shall be adopted by a tight curb board not less than 30 centimeters 1 foot high and a railing not less than 1.
The entire structure shall be designed to carry the loads imposed upon it: Provided, That the live load shall be not less than kilograms per square meter pounds per square foot.
Such protection devices shall be properly maintained in place and kept in good order for the entire length of time pedestrians may be endangered. Every protection fence or canopy shall be removed within 30 days after such protection is no longer required. Subject to the provisions of Articles to of the Civil Code of the Philippines on lateral and subjacent support, the quality of materials and design used structurally in excavations, footings and shall conform to the internationally recognized and accepted principles of engineering.
Adequate signs and safeguards shall be installed around and near the excavation to protect the public from any danger of falling into the excavation. Repeated and flagrant violations of this Section shall be the basis of revocation of any public utility franchise. This provision shall not exempt the franchise owner and the duly constituted officials thereof from any criminal or civil liabilities arising from such excavations and disturbances to third persons.
Veneer is a nonstructural facing of brick, concrete, stone, tile, metal, plastic, glass, or other similar approved materials attached to a backing or structural components of the building for the purpose of ornamentation, protection, or enclosure that may be adhered, integrated, or anchored either on the exterior or interior of the building or structure. The design of all veneer shall comply with the following: The person undertaking a causing a construction to be undertaken shall observe, to the satisfaction of the Building Official, internationally recognized and accepted principles governing dimensions of units, weights of materials, methods of construction, attachment or anchorage, bonding or anchorage, bonding or adhesion, structural adequacy and type and rigidity of backing, and considerations for differential movements of supports including that caused by temperature changes, shinkage, creep, and deflection.
Vertical openings be enclosed depending upon the fire-resistive requirements of a particular type of construction as set forth in this Code.
Walls and partitions enclosing elevators and escalators shall be not less than the fire-resistive construction required under the Types of Construction. Enclosing walls of elevators shafts may consist of wire glass set in metal frames on the entrance side only. Elevator shafts extending through more than two stories shall be equipped with an approved means of adequate ventilation to and through the main roof of the building: Provided, That in buildings housing Groups G and F Occupancies equipped with automatic fire-extinguishing systems throughout, enclosures shall not be required to escalators: Provided, further, That the top of the escalator opening at each story shall be provided with a draft curtain.
Such draft curtain shall enclose the perimeter of the unenclosed opening and shall extend from the ceiling downward at least 30 centimeters 12 inches on all sides. Automatic sprinklers shall be provided around the perimeter of the opening and within 60 centimeters 2 feet of the draft curtain. The distance between the sprinklers shall not exceed 1. All shafts, ducts, chutes, and other vertical openings not covered in paragraph b , above shall have enclosing walls conforming to the requirements specified under the Type of Construction of the building in which they are located.
In other than Group A Occupancies rubbish and linen chutes shall terminate in rooms separated from the remainder of the bidding by a One-Hour Fire-Resistive Occupancy Separation. Openings into the chutes shall not be located in required exit corridors or stairways.
Air ducts passing through a floor shall be enclosed in a shaft. The shaft shall be as required in this Code for vertical openings. Dampers shall be installed where ducts pierce the shaft enclosure walls.
Air ducts in Group A Occupancies need not be enclosed in a shaft if conforming to the mechanical provisions of this Code. Roof coverings for all buildings shall be either fire-retardant or ordinary depending upon the fire-resistive requirements of the particular Type of Construction.
The use of combustible roof insulation shall be permitted in all Types of Construction provided it is covered with approved roof covering applied directly thereto.
All roofs shall be so framed and tied into the framework and supporting walls so as to form an integral part of the whole building. Roof trusses shall have all joints well fitted and shall have all tension members well tightened before any load is placed on the truss. Diagonal and sway bracing shall be used to brace all roof trusses. The allowable working stresses of materials in trusses shall conform to this Code.
The minimum net section of the members after framing shall be used in determining the strength on the truss at any point. An attic access opening shall be provided in the ceiling of the top floor of buildings with combustible ceiling or roof construction.
The opening shall be located in a corridor or hallway of buildings or three or more stories in height, and readily accessible in buildings of any height.
The opening be not less than 55 centimeters by 75 centimeters 22 inches by 30 inches. Seventy-five centimeters 30 inches minimum clear headroom shall be provided above the access opening.
Attics with a maximum vertical clear height of less than 75 centimeters 30 inches need not be provided with access openings. Enclosed attics spaces formed of combustible construction shall be divided into horizontal areas not exceeding square meters square feet by partitions extending from the ceiling to the roof.
Openings in the partitions shall be protected by self-closing doors constructed as required for the partitions: Except, That where the entire attic is equipped with an approved automatic fire-extinguishing system, the attic space may be divided into areas not to exceed square meters square feet. Regardless of the Type of Construction, draft stops shall be installed in trussed roofs, between roof and bottom chord of trusses, in all buildings exceeding square meters 20, square feet.
Draft stops shall be constructed as for attic area separations, and in accordance with Type of Construction. Enclosed attics and enclosed rafter spaces formed where ceilings are applied direct to the underside of roof rafters, shall have cross ventilation for each separate space by ventilating and openings protected against the entrance of rain. Roof systems not designed to support accumulated water shall be sloped for drainage.
Unless roofs are sloped to drain over roof edges or are designed to support accumulated water, roof drains shall be installed at each low point of the roof. Roof drains shall be adequate in size to convey the water tributary to the roof drains. Where roof drains are required, overflow drains having the same size as the roof drains shall be installed with the inlet flow line located 5 centimeters 2 inches above the low point of the roof, or overflow scuppers having three times the size of the roof drains may be installed in adjacent parapet walls with the inlet flow line 5 centimeters 2 inches above the low the point of the adjacent roof and having minimum opening height of 10 centimeters 4 inches.
Overflow drains shall be connected to drain lines independent from the roof drains. Roof drainage overflow drains, when concealed within the construction of the building, shall be installed. Roof drainage water from a building shall not be permitted to flow over public property, except for Groups A and J Occupancies. At the juncture of the roof and vertical surface, flashing and counterflashing shall be provided.
The construction of stairs, exits, and occupant loads shall conform to requirements for occupants of buildings, reviewing stands, bleachers, and grandstands. The occupant load permitted in any building or portion thereof shall be determined by dividing the floor area assigned to that use by the square meters or square feet per occupant according generally accepted principles of engineering.
The capacity of a building containing mixed occupancies shall be determined by adding the number of occupants of the various parts of the building classified as to Occupancy and Type of Construction.
Exit requirements of a building or portion thereof used for different purposes shall be determined by the occupant load which gives the largest number of persons. No obstruction shall be placed the required width of an exit except projections permitted by this code. Any room having an occupant load of more than 50 where fixed seats are not installed, and which is used for classroom, assembly, or similar purpose, shall have the capacity of the room posted in a conspicuous place near the main exit from the room.
Approved signs shall be maintained in a legible manner by the owner or his authorized agent, and shall indicate the number of occupants permitted for each room use. Except in Group A Occupancies, changes in elevation of not less than 30 centimeters 12 inches along any exit serving a tributary occupant load of 10 or more shall be by means of ramps. Every building or usable portion thereof shall have at least one exit. In all occupancies, floors above the first story having an occupant load of more than 10 shall have not less than two exits.
Construction Statistics from Approved Building Permits for the Year 2009
Each mezzanine used for other than storage purposes, if greater in area than square meters square feet , or if more than Every story or portion thereof, having an occupant load of to shall have not less than three exits. Every story or portions thereof, having an occupant load of or more shall have not less than four exits.
The number of exits required from any story of a building shall be determined by using the occupant loads of floors which exit through the level under consideration as follows: The maximum number of exits required for any story shall be maintained until egress is provided from the structure. For purposes of this Section, basements or cellars and occupied roofs shall be provided with exits as required for stories.
Floors above the second story, basements, and cellars used for other than service of the building shall have not less than two exits. The total width of exists in meters shall be not less than the total occupant load served divided by in feet, by Such width of exits shall be divided approximately equally among the separate exits.
The total exit width required from any story of a building shall be determined by using the occupant load of that story, plus the percentage of the occupant loads of floors which exit through the level under considerations as follows: The maximum exit width required from any story of a building shall be maintained. If only two exits are required they shall be placed a distance apart equal to not less than one-fifth of the perimeter of the area served measured in a straight line between exits.
Where three or more exits are required they shall be arranged a reasonable distance apart so that if one becomes blocked others will be available. No point in an unsprinkled building shall be more than In building equipped with a complete automatic fire-extinguishing system the distance from exits may be increased to The provisions herein shall apply to every exit door serving an area having an occupant load more than 10, or serving hazardous rooms or areas.
Exit doors shall swing in the direction of exit travel when serving any hazardous areas or when serving an occupant load of 50 or more. Double acting doors shall not be used as a part of fire assembly, nor equipped with panic hardware. A double acting door shall be provided with a view panel of not less than square centimeters square inches. Exit door shall be openable from the inside without the use of a key or any special knowledge or effort: Except, That this requirement shall not apply to exterior exit doors in a Group E or F Occupancy if there is a conspicuous, readily visible and durable sign on or adjacent to the door, stating that the door is to remain unlocked during business hours.
The locking device must be of a type that will be readily distinguishable as locked.
Flush bolts or surface bolts are prohibited. Every required exit doorway shall be of a size as to permit the installation of a door not less than 90 centimeters 3 feet in width and not less than 2.
When installed in exit doorways, exits doors shall be capable of opening at least 90 degrees and shall be so mounted that the clear width of the exitway is not less than 70 centimeters 2 feet, 4 inches. In computing the required exit width, the net dimension of the exitway shall be used.
No leaf an exit door shall exceed 1. Revolving, sliding, and overhead doors shall not be used as required exits. Every required exit door shall give immediate access to an approved means of egress from the building.
Regardless of the occupant load, there shall be a floor or landing on each side of and exit door. The floor or landing shall be level with, or not more than 5 centimeters 2 inches lower than the threshold of the doorway: Glass doors shall conform to the requirements specified in Section Other exit doors shall be so marked that they are readily distinguishable from the adjacent construction. When additional doors are provided for egress purposes, they shall conform to all provisions in the following cases: Approved revolving door having leaves which will collapse under opposing pressures may be used in exit situations: Provided, That such doors have a minimum width of 2.
The provisions herein shall apply to every corridor and exterior exit balcony serving as required exit for an occupant load of more than Every corridor or exterior exit balcony shall be not less in which 1. The required width of corridors and exterior exit balconies shall be unobstructed: Except, That trim, handrails, and doors when fully opened shall not reduce the required width by more than 18 centimeters 7 inches.
Doors in any position shall not reduce the required width by more than one-half. When more than one exit is required, they shall be so arranged to allow going to either direction from any point in the corridor or exterior exit balcony to a separate exit, except for dead ends permitted. Corridors and exterior exit balconies with dead ends are permitted when the dead ends does not exceed 6. Walls and ceilings of corridors shall be not less than one hour fire-resistive construction: Except, That this requirement shall not apply to exterior exit balcony railings, corridors of a one-story building housing a Group E or F Occupancy occupied by one tenant only and which serves an occupant load of 30 less, nor to corridors, formed by temporary partitions.
Exterior exit balconies cannot project into an area where protected openings are required. Where corridor walls are required to be one-hour fire-resistive construction every interior door opening shall be protected as set forth in generally recognized and accepted requirements for dual purpose fire exit doors.
Other interior openings, except ventilation louvers equipped with approved automatic fire shutters shall be 6. The total area of all openings other than doors, in any portion of an interior corridor wall shall not exceed 25 per cent of the area of the corridor wall of the room which it is separating from the corridor. Every stairway serving any building or portion thereof shall conform to the following requirements of this Code except stairs or ladders used only to attend equipment.
Stairways serving an occupant load of more than 50 shall be not less in width than 1. Stairways serving an occupant load of 50 less may be 90 centimeters 3 feet wide. Private stairways serving an occupant load less than 10 may be 75 centimeters 2 feet, 6 inches wide.
Except, That in private stairways serving an occupant load of less than 10, the rise may be 20 centimeters 8 inches and run may be 23 centimeters 9 inches. In Group A Occupancies and in private stairways in Group B Occupancies, winders may be used if the required width of run is provided at a point not more than 30 centimeters 12 inches from the side of the stairway where the treads are the narrower, but in no case shall any width of run be less than 15 centimeters 6 inches at any point.
Circular stairs may be used as an exit provided the minimum width of run is not less than 25 centimeters 10 inches. Every landing shall have a dimension measured in the direction of travel equal to the width of the stairway.
Such dimension need not exceed 1. Landings, when provided shall not be reduced in width by more than 9. Where a basement stairway and stairway to an upper story terminate in the same exit enclosure, an approved barrier shall be provided to prevent persons from continuing on into the basement.
Directional exit signs shall be provided as specified in this Code. There shall be not more than 3.
Stairways shall have handrails on each side, and every stairway required to be more than 3. Intermediate handrails shall be spaced approximately equal within the entire width of the stairway. Handrails shall be placed not less than 75 centimeters 2 feet, 6 inches nor more than 85 centimeters 2 feet, 10 inches above the nosing of threads, and ends of handrails shall be returned or shall terminate in newel posts or safety terminals: Except, in the following cases: Stairways 1. All openings in the exterior wall below or within 3.
Except, That openings may be unprotected when two separated exterior stairways serve an exterior exit balcony. Interior stairways shall be constructed as specified in this Code. Where there is enclosed usable space shall be protected on the enclosed side as required for one-hour fire-resistive construction.
Exterior stairways shall be of incombustible material: Except, That on Type III buildings which do not exceed two stories in height, and are located in less fire-resistive Fire Zones, as well as on Type I buildings, these may be of wood not less than 5 centimeters 2 inches in nominal thickness.
Exterior stairs shall be protected as required for exterior walls due to location on property as specified in this Code. Exterior stairways shall not project into an area where openings are required to be protected. Where there is enclosed usable space under stairs the walls and soffits of the enclosed space shall be protected on the enclosed side as required for one-hour fire-resistive construction. In every building more than two stories in height, one stairway shall extend to the roof surface, unless the roof has a slope greater than 1 in 3.
Every required stairway shall have a headroom clearance of not less than2. Such clearance shall be established by measuring vertically from a plane parallel and tangent to the stairway tread nosing to the soft above all points. A ramp conforming to the requirements of this Code may be used as an exit. The width of ramps shall be as required for corridors. If conforming to the provisions of this Code, a horizontal exit may be required exit.
All openings in a separation wall shall be protected by a fire assembly having a fire-resistive rating of not less than one hour. A horizontal exit shall lead into a floor area having capacity for an occupant load not less than the occupant load served by such exit. The capacity shall be determined by allowing 0.
The dispersal area into which the horizontal exit leads shall be provided with exits as required by this Code. Every interior stairway, ramp, or escalator shall be enclosed as specified in this Code: Except, That in other than Group D Occupancies, an enclosure will not be required for a stairway, ramp, or escalator serving only one adjacent floor and connected with corridors or stairways serving other floors.
Stairs in Group A Occupancies need not be enclosed. There shall be no openings into exit enclosures except exit doorways and openings in exterior walls. All exit doors in an exit enclosure shall appropriately be protected.
Enclosed corridors or passageways are not required from unenclosed stairways. A smoke enclosure shall consist of a continuous stairway enclosed from the highest point top the lowest point by walls of two-hour fire-resistive construction.
In buildings five stories or more in height, one of the required exits shall be smokeproof enclosure. There shall be no openings directly into the interior of the building. Access shall be through a vestibule with one wall at 50 per cent open to the exterior and having an exit door from the interior of the building and an exit door leading to the smokeproof enclosure. In lieu of a vestibule, access may be by way of an open exterior balcony of incombustible materials.
The opening from the vestibule or balcony to the stair tower shall be protected a self-closing fire assembly having a one-hour fire-resistive rating. The exit passageway shall be without other openings and shall have walls, floors, and ceilings of two-hour exit resistance.
Every exit shall discharge into a public way, exit court, or exit passageway. Every exit court shall discharge into a public way or exit passageway. Passageways shall be without openings other than required exits and shall have walls, floors, and ceilings of the building but shall be not less than one-hour fire-resistive construction.
Every exit court and exit passageway shall be at least as wide as the required total width of the tributary exits, such as required width being based on the occupant load served.
The required width of exit courts or exit passageways shall be unobstructed except as permitted in corridors. At any point where the width of an exit court is reduced from any cause, the reduction in width shall be affected gradually by a guardrail at least 90 centimeters 3 feet in height. The guardrail shall make an angle of not more than 30 degrees with the exit court. The slope of exit courts shall not exceed 1 in The slope of exit passageways shall not exceed 1 in 8. Every exit court shall be provided with exits as required by this Code.
All openings into an exit court less than 3. Except, That openings more than 3. Exits shall be illuminated at any time the building is occupied with light having an intensity of not less than one-foot candle at floor level: Except, That for Group A Occupancies the exit illumination shall be provided with separate circuits or separated sources of power but not necessarily separate from exit signs when these are required for exit sign illumination.
Every portion of every building in which are installed seats, tables, merchandise, equipment, or similar materials shall be provided with aisles leading to an exit. Every aisle shall be not less than 90 centimeters 3 feet wide if serving only one side, and not less than 1.
With continental spacing, side aisle shall be not less than 1. In area occupied by seats and in Group H and I Occupancies without seats, the line of travel to an exit door by an aisle shall not be not more than With standard spacing, as specified in this Code, aisles shall be so located that there will be not more than six intervening seats between any seat and the nearest aisle.
With continental spacing, the number of intervening seats may be increased to 29 where exit doors are provided along each aisle of the row of seats at the rate of one pair of exit doors for five rows of seats.
Such exit doors shall provide a minimum clear width of 1. Aisles shall terminate in a cross aisle, foyer, or exit. The width of the cross aisle shall be not less than the sum of the required width of the widest aisle plus 50 per cent of the total required width of the remaining aisle leading thereto.
Vomitories connecting the foyer or main exit with the cross aisles shall have a total width not less than the sum of the required width of the widest aisles leading thereto plus 50 per cent of the total required width of the remaining aisles leading thereto. The slope portion of aisles shall not exceed 1 in 8. With standard seating the spacing of rows of seats from back-to-back shall be not less than 84 centimeters 2 feet, 9 inches , nor shall less than 69 centimeters 2 feet, 3 inches plus the sum of the thickness of the back and inclination of the back.
Automatic or self-rising seats shall be measured in the seat-up position, other seats shall be measured in the seat-down position. With continental seating, the spacing of rows of unoccupied seats shall provide a clear width measured horizontally, as follows: The width of any seat shall not less than 45 centimeters 1 foot, 6 inches.
Except in Group A Occupancies, every boiler room and every room containing an incinerator or L-P Gas or liquid fuel-fired equipment shall be provided with at least two means of egress, one of which may be a ladder.
All interior openings shall be protected as set by internationally recognized and accepted practice for dual purpose fire exit doors. Film laboratories, projection rooms, and nitro-cellulose processing rooms shall have not less than two exits.
Stands employing combustible framing shall be limited to 11 rows or 2. The minimum unit live load for reviewing stands, grandstands, and bleachers shall be kilograms per square meter pounds per square foot of horizontal projection for the structure as a whole.
Seat and footboards shall be The sway force, applied to seats, shall be Sway forces need not be applied simultaneously with other lateral forces.
The minimum spacing of rows of seats measured from back-to-back shall be: There shall be a space of not less than 30 centimeters 12 inches between the back of each seat and front of the seat immediately behind it. The maximum rise from one row of seats to the next shall not exceed 40 centimeters 16 inches.
For determining the seating capacity of a stand, the width of any seat shall be not less than 45 centimeters 18 inches nor more than 48 centimeters 19 inches. The number of seats between any seats and an aisle shall not be greater than 15 for open air stands with seats without backrests; 9 for open air stands with seats having backrest in buildings, and 6 for seats with backrest in building.
Aisles shall be provided in all stands: Except, That aisles may be omitted when all the following conditions exists: Seats are without backrest; the rise from row to row does not exceed 30 centimeters 12 inches per row; the number of rows does not exceed 11 in height; the top seating board is not over 3.
No obstruction shall be placed in the required width of any aisle or exitway. When an aisle is elevated more than 20 centimeters 8 inches above grade, the aisle shall be provided with a stairway or ramp whose width is not less than the width of the aisles. No vertical aisle shall have a dead and more than 16 rows in depth regardless of the number of exits required. Aisles shall have a minimum width of 1. The requirements in this Code shall apply to all stairs and ramps except for portions that pass through the seating area.
The maximum rise of treads shall not exceed 20 centimeters 8 inches and the minimum width of the run shall be 28 centimeters 11 inches. The slope of ramp shall be of approved nonslip material. A ramp with a slope exceeding 1 in 10 shall have handrails. Stairs for stands shall have handrails. Handrails shall conform to the requirements of this Code.
Where only sections of stands are used, guardrails shall be provided as required in this Code. Except, That the height may be reduced to 90 centimeters 3 feet for guardrails located in front of the grandstand. The intervening space shall have one additional rail midway in the opening: Except, That railings may be omitted when stands are placed directly against a wall or fence giving equivalent protection; stairs and ramps shall be provided with guardrails.
Handrails at the front of stands and adjacent to an aisle shall be designed at resist a load of 74 kilograms per linear meter 50 pounds per linear foot applied at the top rail.
Other handrails shall be designed at resist a load of 9 kilograms 20 pounds. Footboards shall be provided for all rows of seats above the third row, or beginning at such point where the seating plank is more than 60 centimeters 2 feet above grade. The line of travel to an exit shall be not more than For stands with seats without backrests this distance may be measured by direct line from a seat to the exit from the stand. An aisle may be considered as only one exit unless it is continuous at both ends to a legal building exit or to a safe dispersal area.
A stand with the first seating board not more than 50 centimeters 20 inches above grade of floor may be considered to have two exits when the bottom of the stands is open at both ends. Every stand or section of a stand within a building shall have at least two means of egress when the stand accommodates more than 50 persons.
Every open air stand having seats without backrest shall have at least two means of egress when the stand accommodates more than persons.
Three exits shall be required for stands within a building when there are more than occupants within a stands, and for open air stands with seats without backrests where a stand or section of a stand accommodates more than occupants.
Four exits shall be required when a stand or section of stand accommodates more than occupants. Except, That for an open air stand with seats without backrest four exits need not be provided unless there are accommodations for more than occupants.
The total width of exits in meters shall be not less than the total occupant load served divided by by 50 in feet: Except, that for open air stands with seats without backrests the total width of exits in meters shall be not less than the total occupant load served divided by in feet when exiting by stairs, and divided by by in feet when exiting by ramps or horizontally.
When both horizontal and stair exits are used, the total width of exits shall be determined by using both figures as applicable.
No exit shall be less than 1. Exits shall be arranged a reasonable distance apart. When but two exits are provided, they shall be spaced not less than one-fifth of the perimeter apart. Chairs and benches used on raised stands shall be secured to the platform upon which they are placed: Except, That when less than 25 chairs are used upon a single raised platform the fastening of seats to the platform may be omitted.
When more than loose chairs are used in connection with athletic events, chairs shall be fastened together in groups of not less than three, and shall be tied or staked to the ground. Each safe dispersal area shall have at least two exits. If more than persons are to be accommodated within such an area, there shall be a minimum of three exits, and for more than persons there shall be a minimum of four exits.
The aggregate clear width of exits from a safe dispersal area shall be determined on the basis of not less than one exit unit 56 centimeters 22 inches for each persons to be accommodated and no exit shall be less than 1.
Exits shall be a reasonable distance apart but shall be spaced not less than one-fifth of the perimeter of the area apart from each other. Frames of skylights shall be designed to carry loads required for roofs. All skylights, the glass of which is set an angle of less than 45 degrees from the horizontal, if located above the first story, shall be at least 10 centimeters 4 inches above the roofs. Curbs on which the skylight rests shall be constructed of incumbustible materials except for Type I or II constructions.
Corrugated wired glass may have supports 1. All glass in skylights shall be wire glass: Except, That skylights over vertical shafts extending through two or more stories shall be glazed with plain glass as specified in this Code: Provided, That wire glass may be used if ventilation equal to not less than one-eighth the cross-sectional area of the shaft but never less than 1.
Any glass not wire glass shall be protected above and below with a screen constructed of wire not smaller than 12 U. The screen shall be substantially supported below the glass. The use of wood in the frames of skylights will be permitted in greenhouses outside of highly restrictive Fire Zones if the height of the skylights does not exceeds 6. Any such glass over square centimeters 16 square inches in area shall have wire mesh embedded in the same or shall be provided with a wire screen underneath as specified for skylights in this Code.
All portions of the floor lights or sidewalk lights shall be of the same strength as required for floor or sidewalk lights shall be of the same strength as construction, except in cases where the floor is surrounded by a railing not less than 1. The roof covering of a bay or oriel window shall conform to the requirements of the roofing of the main roof. Exterior balconies attached to or supported by walls required to be of masonry, shall have brackets or beams constructed of incombustible materials.
Railings shall be provided for balconies, landings, or porches, which are more than 75 centimeters 2 feet, 6 inches above grade. No penthouse or other projection above the roof when used as an enclosure for tanks or elevators which run to the roof and in all other cases shall be not extend more than 3.
No penthouse, bulkhead, or any other similar projection above the roof shall be used for purposes other than shelter of mechanical equipment or shelter of vertical shaft openings in the roof. A penthouse or bulkhead used for purposes other than that allowed by this Section shall conform to the requirements of this Code for an additional story. Roof structures constructed with walls, floors, and roof as required for the main portion of the building except in the following cases: The above restriction shall not prohibit the placing of wood flagpoles or similar structures on the roof of any building.
Towers or spires when closed shall have exterior walls as required for the building to which they are attached. Towers not enclosed and which extend more than No tower or spire shall occupy more than one-fourth of the street frontage of any building to which is attached and in no case shall the base area exceed square meters square feet unless it conforms entirely to the type of construction requirements of the building to which it is attached and is limited in height as a main part of the building.
If the area of the tower or spire exceeds The roof covering of the spires shall be as required for the main roof of the roof of the rest of the structure. Skeleton towers used as radio masts, neon signs, or advertisement frames and placed on the roof of any building shall be constructed entirely of incombustible materials when more than 7.
No such skeleton towers shall be supported on roofs of combustible framings.
They shall be design to withstand a wind load from any direction in addition to any other loads. Chimneys shall be designed, anchored, supported, reinforced, constructed, and installed in accordance with generally accepted principles of engineering. Every chimney shall be capable of producing a draft at the appliance not less than the required for the safe operation of the appliance connected thereto. No chimney shall support any structural load than its own weight unless it is designed to act as a supporting member.
Chimneys in an wood-framed building shall be anchored laterally at the ceiling and each floor line which is more than 1. Every masonry chimneys shall have walls of masonry units, bricks, stones, listed masonry units, reinforced concrete or equivalent solid thickness of hollow masonry and lined with suitable liners in accordance with the following requirements: Masonry chimneys shall be constructed of masonry units or reinforced concrete with walls not less than 10 centimeters 4 inches thick or rubble stone masonry not less than 30 centimeters 12 inches thick.
The chimney linear shall be in accordance with this Code. Masonry chimneys shall be constructed of masonry units or reinforced concrete with walls not less than 20 centimeters 8 inches thick except that rubbles stone masonry shall be not less than 30 centimeters 12 inches thick.
The chimneys linear shall be in accordance with this Code. Masonry chimneys for medium-heat appliances shall be constructed of solid masonry units of reinforced concrete not less than 20 centimeters 8 inches thick, except that stone masonry shall be not at less than 30 centimeters 12 inches thick and, in addition shall be lined with not less than 10 centimeters 4 inches of firebrick laid in a solid bed of fire clay mortar with solidity filled head, bed, and wall joints, starting not less than 60 centimeters 2 feet below the chimney connector entrance and extending for a distance of at least 7.
Chimneys extending 7. Masonry chimneys for high-heat appliances shall be constructed with double walls of sold masonry units of reinforced concrete not less than 20 centimeters 8 inches in thickness, with an air space of not less than 5 centimeters 2 inches between walls. The inside of the interior walls shall be of firebrick not less than 10 centimeters 4 inches in thickness laid in a solid bid of fire clay mortar with solidly filled head, bed and wall joints. Chimneys for incinerators installed in multi-story buildings using the chimney passageway as a refuse chute where the horizontal grate area of combustion chamber does not exceed 0.
If the grate area of such an incinerator exceeds 0. Masonry chimneys for commercial and industrial-type incinerators of a size designed for not more than kilograms pounds or refuse per hour and having a horizontal grate area not exceeding 0. If the design capacity or grate area of such an incinerator exceed kilograms pounds per hour and 0. The lining shall extend from 20 centimeters 8 inches below the lowest inlet or, in the case of fireplaces, from the throat of the fireplace to a point above enclosing masonry walls.
Fire clay chimney linings shall be installed ahead of the construction of the chimney as it is carried up, carefully bedded one on the other in fire clay mortar, with close-fitting joints left so smooth on the inside. Firebrick not less than 5 centimeters 2 inches thick may be used in place of fire clay chimney.
No chimney passageway shall be smaller in area than the vent connection on the appliance attached thereto. Every masonry chimney shall extend at least 60 centimeters 2 feet above the part of the roof through which it passes and at least 60 centimeters 2 feet above the highest elevation of any part of a building within 3. No masonry chimney shall be corbel from a wall more than 15 centimeters 6 inches nor shall a masonry chimney be corbeled from a wall which is less than 30 centimeters 12 inches in thickness unless it projects equally on each side of the wall.
In the second story of a two-story building of Group A Occupancy, corbeling of masonry chimneys on the exterior of the enclosing walls may equal the wall thickness. In every case the corbeling shall not exceed 2. No change in the size or shape of a masonry chimney where the chimney passes through the roof shall be made within a distance of 15 centimeters 6 inches above or below the roof joists or rafters.
When more than one passageway is contained in the same chimney, masonry separation at least 10 centimeters 4 inches thick bonded into the masonry wall of the chimney shall be provided to separate passageways.
Combustible materials shall not be placed within 5 centimeters 2 inches of smoke chamber walls or masonry chimney walls when built within a structure, or with 2. Cleanout opening shall be provided at the base of every masonry chimney. Fireplaces, barbecues, smoke chamber, and fireplace chimneys shall be of solid masonry or reinforced concrete and shall conform to the minimum requirements specified in this Code.
Factory-built metal room heating stoves may be used in accordance with generally recognized engineering practices. Walls of fireplaces shall be not less than 20 centimeters 8 inches in thickness. Walls of fireboxes shall be not less than 25 centimeters 10 inches in thickness: Except, That where a lining of firebrick is used such walls shall be not less than 20 centimeters 8 inches in thickness.
The firebox shall be not less than 50 centimeters 20 inches in depth. Metal hoods used as a part of a fireplace or barbecue shall be not less than No. The hoods shall be sloped at an angle of 45 degrees or less from the vertical and shall extend horizontally at least 15 centimeters 6 inches beyond the limits of the firebox. Metal hoods shall be kept a minimum of 40 centimeters 18 inches from combustion materials unless approved for reduced clearances.
Approved metal heat circulators may be installed fireplaces. Front and side walls shall be not less than 20 centimeters 8 inches in thickness.
Smoke chamber back walls shall not be not less than 15 centimeters 6 inches in thickness. Walls of chimneys without flue lining shall be not less than 20 centimeters 8 inches in thickness.
Walls of chimneys with flue lining shall be not less than 10 centimeters 4 inches in thickness and shall not be constructed in accordance with this Code. Combustible material shall not be placed within 5 centimeters 2 inches of fireplace, smoke chamber, or chimneys walls when built entirely within a structure, or within 2.
In lieu of 2. Combustible materials shall not be placed within 15 centimeters 6 inches of the fireplace opening.
No part of metal hoods used as part of a fireplace, barbecue, or heating stove shall be less than 40 centimeters 18 inches from combustible material.
This clearance may be reduced to the minimum requirements set forth in this Code. The net cross-sectional area of the flue and of the throat between the firebox and the smoke chamber of a fireplaces shall be not less than the requirements according to internationally recognized and accepted principles of engineering.
Where dampers are used, they shall be of not less than No. When fully opened, damper openings shall be not less than 90 per cent of the required flue area. When fully opened, damper blade shall not extent the line of inner face of the flue.
Masonry over the fireplace opening shall be supported by an incombustible lintel. Every fireplace shall be provided with a brick, concrete, stone, or other approved incombustible hearth slab at least 30 centimeters 12 inches wider on each side than the fireplace opening and projecting at least 30 centimeters 18 inches therefrom. This slab shall be not less than 10 centimeters 4 inches thick and shall be supported by incombustible materials or reinforced to carry its own weight and all imposed loads.
Combustible forms and centering shall be removed. Where Required. Standard automatic fire-extinguishing systems shall comply with requirements of generally recognized and accepted practices and shall be installed in the following places: Every building six more stories in height shall be equipped with one or more dry standpipes.
Dry standpipes shall be of wrought iron or galvanized steel and together with fittings and connections shall be of sufficient strength to withstand 20 kilograms per square centimeter pounds per square inch of water pressure when ready for service, without leaking at the joints, valves, or fittings.
Tests shall be conducted by the owner or his representative or contractor in the presence of a representative of the City or Municipal Fire Department whenever deemed necessary for the purpose of certification of its proper function.
Dry standpipes shall be of such size as to be capable of delivering liters gallons per minute from each of any three outlets simultaneously under the pressure created by one fire engine or pumper, based on the existing city equipment available.
The local Fire Department shall be consulted as to the proper size and threads of those connections. Every building six or more stories in height where the area of any floor above the fifth floor is square meters 10, square feet or less shall be equipped with not less than one dry standpipe and an additional standpipe shall be installed for each additional square meters 10, square feet or fraction thereof.
Standpipes shall be located within stairway landings or near such stairways as possible or immediately inside of an exterior wall and 30 centimeters 12 inches of an opening in a stairway enclosure of the balcony or vestibule of a smokeproof tower or an outside exit stairway. Subject to the provisions of subparagraph 2 , all centimeter 4-inch dry standpipes shall be equipped with a two-way Siamese fire department connection.
All All Siamese inlet connections shall be located on a street front of the building and not less than 30 centimeters 12 inches nor more than 1.
All Siamese inlet connections shall be recessed in the wall or otherwise substantially protected. All dry standpipes shall be extend from the ground floor to and over the roof and shall be equipped with a 6. All dry standpipes shall be equipped with a two-way 6.
All outlets shall be equipped with gate valves with substantial chains. An iron or bronze sign with raised letters at least 2. Every Group H and I Occupancy of any height and every Group C Occupancy of two or more stories in height, whose corridors are flanked on both sides, and every Group C Occupancy of two or more stories in height, whose corridors serve only one row of rooms on one side and with an open court on the other side, and every Group B, D, E, F, and G Occupancy of three or more stories in height and every Group G and E Occupancy over square meters 20, square feet in area shall be equipped with one or more interior wet standpipes extending from the cellar or basement into the topmost story: Provided, That Group H buildings having no stage and having a seating capacity of less than need to be equipped with interior standpipes.
Interior wet standpipes shall be constructed as required for dry standpipes. Buildings of Groups H and I Occupancies shall have wet standpipe systems capable of delivering the required quantity and pressure from any two outlets simultaneously; for all other occupancies only one outlet need be figured to be at one time.Detailed Plans of machinery foundations and supports drawn to scale of at least 1: No sign or sign structures shall project into any public alley below a height of 4.
No change in the size or shape of a masonry chimney where the chimney passes through the roof shall be made within a distance of 15 centimeters 6 inches above or below the roof joists or rafters. No point in an unsprinkled building shall be more than Division A-2 residential buildings for the exclusive use of non-leasing occupants not exceeding 10 persons 1.
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