PD 1096 NATIONAL BUILDING CODE OF THE PHILIPPINES Demolition- The systematic dismantling or destruction of a building/ structure, in whole or in part Ancillary building/structure- A secondary building/ structure located within the same premises, the use of which is incident alto that of the main RULE 1 GENERAL PROVISIONS RULE 2 PURPOSE OF THE CODE ADMINISTRATION + ENFORCEMENT ▪ To provide a framework of minimum standardsband requirements for all buildings in order to regulate their location, design, quality of materials, construction, and use. THE SECRETARY SCOPE OF APPLICATION ▪ Policy making ▪ The National Building Code (NBC) applies to the design, location, siting, construction, alteration, repair, conversion, use, occupancy, maintenance, moving, demolition of and addition to public and private buildings, except traditional dwellings and BP 220 projects. ▪ Memorandum circulars ▪ Secretary of the DPWH- MANUEL M. BONOAN ▪ Duties include: ▪ Prescription of fees ▪ Appointment of building officials in all municipalities THE BUILDING OFFICIAL DEFINITION OF TERMS Construction- All on-sitework done from site preparation, excavation, foundation, assembly of all the components and installation of utilities and equipment of buildings/structure Addition- Any new construction which increases the height or area of an existing building/structure Alteration- Construction in a building/ structure involving changes in the materials used, partitioning, location/size of openings, structural parts, existing utilities and equipment but does not increase the overall area thereof. Renovation- Any physical change made on a building/ structure to increase its value, utility and/ or to improve its aesthetic Quality. Face lifting- new term for renovation Conversion-A change in the use or occupancy of a building/structure or any portion/s thereof which has different requirements Repair- Remedial work done on any damaged or deteriorated portion/sofa building/structure to restore its original condition ▪ Tasked with the enforcement of the Code in his jurisdiction ▪ Issues, denies, suspends and revokes permits ▪ Undertakes inspection of buildings ▪ Acts on claims FEES ▪ The DPWH Secretary prescribes the fees ▪ The Building Official collects the fees FEE EXEMPTIONS ▪ Public buildings ▪ Traditional family dwellings ▪ A dwelling intended for the use by one family and constructed of native materials (bamboo, nipa, logs, lumber), the total cost of which does not exceed PHP15,000. PROHIBITED ACTS ▪ Proceeding with work without a permit ▪ Unauthorized deviations from the drawings during construction ▪ Minor constructions ▪ Repair works ▪ Non-compliance with work stoppage order ▪ Non-compliance with order to demolish ▪ Use of a building without securing a Certificate of Occupancy ▪ Change in use without the corresponding Certification of Change of Use MINOR CONSTRUCTION ▪ Minor structures 6sqm. or less detached from other buildings, for private use only. (Example: sheds, poultry houses, greenhouses) ▪ Open terraces or patios not exceeding 20sqm. ▪ Failure to post Cert. of Occupancy ▪ Change in type of construction without permit MINOR CONSTRUCTION ▪ Window grilles DANGEROUS BUILDINGS ▪ Structural hazard ▪ Fire hazard ▪ Garden pools 500mm deep or shallower ▪ Garden masonry walls not exceeding 1.20m in height ▪ Unsafe electrical wiring ▪ Unsafe mechanical installation REPAIRS ▪ Inadequate sanitation and health facilities ▪ Not involving structural members ▪ Architectural deficiency ▪ Of non-load bearing partition walls ▪ Not involving addition or alteration OPTIONS FOR DANGEROUS BLDGS ▪ Of doors, windows, floors, fences and walls ▪ Repair ▪ Of plumbing fixtures ▪ Vacation ▪ Demolition PERMIT REQUIREMENTS ▪ Application forms RULE 3 ▪ If lot is owned, PERMITS ▪ OCT or TCT BUILDING PERMIT ▪ Tax declaration ▪ A written authorization granted by the Building Official to an applicant allowing him to proceed with construction after plans, specifications and other pertinent documents have been found to be in conformity with the Code WHEN IS A PERMIT REQUIRED? ▪ Before constructing, altering, repairing, converting, moving, adding to, demolishing a building. ▪ Current real property tax receipt PERMIT REQUIREMENTS ▪ If lot is NOT owned, ▪ Contract of Lease or Deed of Absolute Sale in place of TCT ▪ Five sets of plans and specs, signed and sealed by various professionals ISSUANCE OF PERMITS BUILDING PERMIT EXEMPTIONS ▪ 15 days from payment of fees ▪ Wood construction with fire-resistant materials ▪ One-hour fire-resistive throughout LIABILITY CLAUSE ▪ Article 1723 of the Civil Code states that the engineer or architect who drew up the plans and specifications is liable for 15 years from completion of the building should it collapse due to defects in the plans or the ground. TYPE III ▪ Masonry and wood construction ▪ One hour fire resistive throughout ▪ Incombustible exterior walls LIABILITY CLAUSE ▪ In case the building collapses due to defects in construction or the use of inferior materials, the contractor, along with the construction supervisor, shall be liable. EXPIRATION OF PERMITS ▪ Construction does not commence within 1 year from date of issue ▪ Construction does not resume 120 days after suspension or abandonment of work TYPE IV ▪ Steel, iron, concrete, or masonry construction ▪ Incombustible interiors (ceilings, walls) TYPE V ▪ Four-hour fire resistive throughout ▪ Structural elements of steel, iron, concrete or masonry RULE 5 NON-ISSUANCE, SUSPENSION, REVOCATION FIRE ZONES ▪ Errors in plans and specs ▪ Incorrect or inaccurate data declared ▪ Non-compliance with the Code FIRE ZONE INSPECTION + SUPERVISION ▪ An area within which only certain types of construction are allowed, based on their occupancy, type of construction, and resistance to fire ▪ The owner of the building must engage theservices of a licensed architect or civil engineer to undertake the full-time inspection and FIRE ZONE DESIGNATIONS supervision of the construction. 1. Non-fire restricted zones ▪ All types of construction allowed 2. Fire restrictive zones RULE 4 TYPES OF CONSTRUCTION TYPE I ▪ Type I construction NOT allowed 3. Highly fire restrictive zones ▪ Types I, II, and III NOT allowed ▪ Wood construction BUILDINGS IN MULTIPLE FIRE ZONES TYPE II ▪ Shall be considered as part of the more restrictive zone if more than 1/3 of its total floor area is in that zone ▪ C – Education and recreation ▪ D – Institutional ▪ E – Business and mercantile RULE 6 FIRE RESISTIVE REQUIREMENTS FIRE RESISTIVE RATING ▪ The degree to which a material can withstand fire ▪ Usually expressed in the form of a time period rating (how long a material can withstand being burned) ▪ F – Industrial ▪ G – Storage and hazardous ▪ H – Assembly other than Group I ▪ I – Assembly with 1,000 or more occupant load ▪ J - Accessory ZONING ▪ R –Residential FIRE RESISTIVE STANDARDS FIRE RESISTIVE STANDARDS ▪ C – Commercial ▪ GI – General institutional ▪ I – Industrial ▪ UTS – Utilities, Transportation, Services ▪ SPE - Special ZONING ▪ PRE - Park structures, recreation, entertainment ▪ CUL – Cultural ▪ A – Agricultural ▪ AI – Agroindustrial ▪ PUD – Planned unit development Occupancies A: RESIDENTIAL DWELLINGS ▪ A-1: Residential building for single family RULE 7 OCCUPANCIES + ZONES + REQUIREMENTS OCCUPANCY VERSUS ZONING ▪ Occupancies are assigned to buildings, while zones are assigned to lands. OCCUPANCIES ▪ A – Residential dwellings ▪ B – Residentials, hotels, apartments occupants ▪ A-2: Residential building for non-leasing occupants not exceeding 10 persons B: RESIDENTIALS, HOTELS, APARTMENTS ▪ Multiple dwelling units including boarding or lodging houses, hotels, apartment buildings, rowhouses, convents, monasteries and other similar building each of which accommodates more than 10 persons. C: EDUCATION + RECREATION ▪ Buildings used for school or day-care purposes not classified in Group H or I occupancies D: INSTITUTIONAL ▪ D-1: Institutions where personal liberties are restrained (mental hospitals, jails) ▪ D-2: Institutions for the care of non-ambulatory ▪ G-5: Medium industrial for aircraft repair H: ASSEMBLY FOR LESS THAN 1,000 ▪ H1: Assembly buildings with stage for less than 1,000 ▪ H2: Assembly buildings without stage for 300 or more ▪ H3: Assembly buildings without stage for less than 300 patients and children under kindergarten age ▪ D-3: Institutions for ambulatory patients and homes for children over kindergarten age E: BUSINESS + MERCANTILE ▪ E-1: No work is done except exchange of parts, maintenance without open flame, welding, or highly flammable liquids (gasoline filling station, storage garage) ▪ E-2: Wholesale and retail stores, office buildings, dining establishments ▪ E-3: Aircraft hangars and open parking garages (no repair work) H: ASSEMBLY FOR LESS THAN 1,000 ▪ H4: Recreational/tourism developments not included in other H classifications (stadiums, reviewing stands, and amusement parks) I: ASSEMBLY FOR 1,000 OR MORE ▪ Any assembly building with a stage and an occupant load of 1,000 or more J: ACCESSORY ▪ J1: Agricultural structures F: LIGHT INDUSTRIAL ▪ J2: Carports/garages, fences, towers and pools ▪ Light industrial ▪ J3: Stages, courts, tombs, mausoleums, zoos, and banks ▪ Ice plants, power plants, pumping plants, cold storage, factories and workshops using incombustible and non-explosive materials G: STORAGE + HAZARDOUS ▪ G-1: Medium industrial, storage of highly Zones R1 ▪ Low-density residential zone flammable materials ▪ Characterized by single-family and single detached dwellings ▪ G-2: Medium industrial, storage of flammable materials: dry cleaning plants, paint stores, spray painting rooms R2 ▪ G-3: Medium industrial structures where loose combustible fibers are generated: wood working establishments ▪ Medium-density residential zone G: STORAGE + HAZARDOUS ▪ Further subclassified into: ▪ G-4: Medium industrial for repair garages and engine manufacturing ▪ Basic R2 ▪ Characterized by low-rise single-attached, duplex, or multilevel buildings for use as multiple family dwellings ▪ Single attached or duplex, 1-3 floors ▪ Maximum R2 ▪ Medium-rise buildings (3-5 storeys) ▪ Low-rise multi-level building, 3-5 floors ▪ Medium to high intensity trade ▪ Example: Shopping centers R3 ▪ High-density residential zone ▪ Characterized low-rise or medium-rise buildings for use as multiple family dwellings ▪ Includes low-rise or medium-rise condominium buildings ▪ Further subclassified into: ▪ Basic R3 ▪ Rowhouses 1-3 storeys high C3 ▪ Metropolitan commercial ▪ Metropolitan in scale ▪ Medium to high-rise buildings (3-5 storeys) ▪ Very high intensity trade ▪ Example: Large to very large shopping malls ▪ Maximum R3 ▪ Medium-rise multilevel structure 6-12 storeys high R4 ▪ Medium to high-density residential zone ▪ Characterized by low-rise townhouses or buildings for use as multiple family dwellings GI ▪ General institutional ▪ Community to national level of institutional use. Low-rise to high-rise. ▪ Two types: ▪ Education/Recreation ▪ Medical/Government ▪ Refers to structures on an individual lot (“townhouse”) I-1 (INDUSTRIAL) ▪ Light industrial use R5 ▪ Very high density residential zone ▪ Characterized by medium-rise to high-rise condominiums ▪ Low-rise but sprawling ▪ Low-intensity manufacturing I-2 (INDUSTRIAL) C1 ▪ Medium industrial use ▪ Light commercial ▪ Low-rise but sprawling ▪ Neighborhood to community in scale ▪ Medium-intensity manufacturing ▪ Low-rise buildings (1-3 storeys) ▪ Low-intensity trade/activity UTS (UTILITIES, TRANSPO, SERVICES) ▪ Example: Small shopping centers ▪ Utilitarian, functional uses ▪ Low-rise to medium rise C2 ▪ Medium commercial ▪ City or municipal in scale ▪ Low to high-intensity community support functions ▪ Two clusters: ▪ Transport terminals, intermodals, depots MIXED OCCUPANCIES ▪ Power/water generation/distribution, telcos, waste management facilities ▪ Rule of thumb: The building adheres to the stricter requirements. ▪ Exceptions: SPE (SPECIAL) ▪ Other vertical facilities not yet mentioned ▪ Included cemeteries and memorial parks ▪ If it’s a one-storey building, in which case each portion shall conform to applicable rules ▪ If the minor occupancy does not exceed 10% of the building, in which case it is ignored Location on property PRE (PARK, RECREATION, ENTERTAINMENT) ▪ Low-rise to medium rise RIGHT OF WAY ▪ Low to medium intensity recreational functions related to educational uses (parks on campus, other recreational/assembly structures on campus) ▪ No building shall be constructed unless it adjoins or has direct access to a public space, yard, or street on at least one of its sides. EAVES OVER WINDOWS CUL (CULTURAL) ▪ Community to national level of use or occupancy ▪ Eaves over required windows shall at least be 750mm from the side and rear property lines. ▪ Low-rise to medium rise FIREWALLS A (AGRICULTURAL) ▪ Low to medium rise ▪ Low to high intensity agricultural activity ▪ Includes farms, but also offices and facilities for agricultural research and training ▪ A fireproof barrier used to prevent the spread of fire between or through buildings ▪ Why are firewalls important? Because when they are built, the building or part of the building extends into the setbacks. ALLOWABLE FIREWALLS ▪ R1: Not allowed AI (AGRO INDUSTRIAL) ▪ Low rise ▪ Low to high intensity agro industrial activity ▪ Includes offices and facilities for agro industrial education and research ▪ However, an abutment up to 3.20m high is OK for carports provided that above 1.50m, the abutment shall be constructed of perforated concrete blocks. PUD (PLANNED UNIT DEVELOPMENT) ▪ Land development or redevelopment schemes for a new project which has a CDMP (Comprehensive Development Masterplan) or equivalent ▪ Example: Bonifacio Global City ALLOWABLE FIREWALLS ▪ R2: One side only ▪ Maximum 80% of the length of side property line. ▪ Total should not exceed 60% of lot perimeter ALLOWABLE FIREWALLS ▪ R3: Two configurations are allowed: ▪ Maximum height: 8 storeys for side, 14m for rear ▪ Option A: Two sides ▪ Maximum 85% of each side ▪ Total should not exceed 65% of lot perimeter ▪ Two storeys high only ▪ Option B: One side + Rear ▪ 90% of side or rear (up to 100% for rear if only 4m) ▪ Total should not exceed 50% of lot perimeter ALLOWABLE FIREWALLS ▪ Two storeys high for side, 3.20m high for rear ▪ Commercial, institutional, and industrial: ▪ Firewalls allowed on the ff. conditions: ▪ Provide sprinkler system ▪ Install fire-retardant or fire-suppression devices ▪ Maximum 70% of lot perimeter ▪ RROW setbacks are complied with ALLOWABLE FLOOR AREAS TGFA ▪ Total gross floor area ALLOWABLE FIREWALLS ▪ R4: Two sides ▪ Maximum 85% of each side ▪ Total should not exceed 50% of lot perimeter ▪ Maximum height: three storeys ▪ The total floor space inside the building ▪ Keyword: inside/enclosed ▪ Includes services/parking (unlike GFA) ALLOWABLE FIREWALLS ▪ R5: Two configurations allowed: ▪ Option A: Two sides ▪ Maximum 75% of each side ▪ Total should not exceed 50% of lot perimeter ▪ Maximum height: 8 storeys ▪ Option B: One side + Rear ▪ Maximum 65% of side and 50% of rear ALLOWABLE MAX. TGFA ▪ Table VII.1, p.84 of Rule 7 & 8 ▪ Format: Number of floors x footprint ▪ Depends on the ff.: ▪ Lot type ▪ Zoning HEIGHT LIMIT PROJECTIONS ▪ Towers, spires and steeples ▪ If made of combustible materials, 6.0m above BHL ▪ If made of incombustible materials, limited only by structural design BUILDING HEIGHT BHL ▪ Building height limit ▪ Given in Table VII.2 on p.89 ▪ Depends on zoning BHL + RROW ▪ The RROW width also dictates the BHL: HOW IS BUILDING HEIGHT MEASURED? ▪ 6-7m RROW: 3.0 storeys or 9.0m ▪ From established grade line to the topmost portion of the building ▪ 4-5m RROW: 2.5 storeys or 7.5m ▪ 0-3m RROW: 2.0 storeys or 6.0m ▪ Excludes allowed projections above the roof, like: ▪ Only exceptions: PUD ▪ Signage PARKING ▪ Masts PARKING SLOT SIZES ▪ Antenna or telecom tower Vehicle Width of parking slot Length or parking slot Car ESTABLISHING THE GRADE LINE ▪ Grade line = highest adjoining sidewalk or natural grade line Perpendicular parking 2.50m 5.00m Parallel parking 2.15m 6.00m Jeepney 3.00m 9.00m Standard truck/bus 3.60m 12.00m Articulated truck 3.60m 18.00m ▪ But if grade is sloping: ▪ If less than 3 meters diff., take highest grade ▪ If more than 3 meters diff., take the average PARKING REQUIREMENTS ▪ Given in Table VII.4 on p.100 ▪ Based on occupancy and lot/floor areas ESTABLISHING THE TOP OF BUILDING ▪ If roof is flat, top = rooftop ▪ If roof is sloping, top = middle of roof height SAMPLE PARKING REQUIREMENTS ▪ Hotels ▪ If highly urbanized, 1 slot for every 3 rooms ▪ If not, 1 slot for every 7 rooms ▪ Not more than 200m away, if commercial ▪ 2 tourist bus parking slots ▪ 1 loading slot for articulated truck SAMPLE PARKING REQUIREMENTS ▪ Churches ▪ For every 50sqm. of congregation area, provide: MANEUVERING SPACE ▪ Using the RROW as a maneuvering space is not allowed ▪ To prevent this, direct access of parking/loading/utility slots to the RROW shall be disallowed ▪ 1 car slot ▪ 1 jeepney slot TRAFFIC-GENERATING BUILDINGS ▪ Public universities ▪ Example: shopping malls ▪ 1 car slot for every 5 classrooms ▪ The distance between such buildings and major road intersections is regulated ▪ 1 loading space for 2 jeepney or shuttle slots ▪ 1 school bus for every 200 students ▪ Public hospital ▪ The building ingress and the intersection shall be at least 50m apart (measured between the two nearest curbs) ▪ 1 car slot for every 25 beds ▪ 1 loading space for 2 jeepney/shuttle slots ▪ 1 slot for articulated truck ▪ 1 slot for standard truck for every 5,000sqm gross floor area ▪ Add truck maneuvering space outside RROW FRACTIONS IN COMPUTATIONS ▪ When computing for parking slots, a fraction of 50% or higher shall be considered as one slot. ▪ In all cases, at least one slot shall be provided unless otherwise allowed. FRONT YARDS AS PARKING ▪ Not allowed for the following: OFF-SITE PARKING LOTS ▪ R2 Maximum ▪ If a multi-floor parking garage is located within a 200-meter radius of the building, 20% of the required parking provisions may be served the multi-floor parking garage. ▪ R3 Maximum ▪ Reserved or leased parking slots may also serve the parking requirements if: ▪ 50% of front yard may be used as parking for R2 Basic and R3 Basic ▪ GI ▪ C1, C2 and C3 ▪ The slots are in a permanent parking building and not in a vacant parking lot. ▪ The said parking building is: ▪ Not more than 100m away, if residential MINIMUM REQUIREMENTS: GROUP A DWELLINGS SANITATION ▪ ISA = Impervious surface area ▪ At least one sanitary toilet and adequate washing and draining facilities ▪ The portion of the open space that is paved ▪ Since “open space” = TOSL, ▪ TOSL = USA + ISA FOUNDATION ▪ At least 250mm thick ▪ At least 600mm below the surface of the ground TERMS DEFINED ▪ MACA = PSO + ISA ▪ Hence, TLA = MACA + USA STRUCTURAL LOADS ▪ First floor live load: 200kg/sqm ▪ Note: MACA stands for Maximum Allowable Construction Area ▪ Second floor live load: 150kg/sqm ▪ Wind load for roofs: 120kg/sqm (vertical) STAIRS ▪ Minimum width: 750mm ▪ Maximum riser: 200mm ▪ Minimum tread: 200mm ▪ Note: These riser/tread dimensions do not match the general dimensions prescribed in Rule 12. ENTRANCE + EXIT ▪ At least one entrance, and another one for exit DEVELOPMENT CONTROLS TERMS DEFINED ▪ TLA = Total lot area ▪ PSO = Percentage of site occupancy ▪ The part of the lot occupied by the building (A.K.A. building footprint expressed in %) ▪ TOSL = Total open space within lot ▪ The part of the lot NOT occupied by the building ▪ TLA = PSO + TOSL TERMS DEFINED ▪ AMBF = Allowable max. building footprint ▪ Footprint expressed in square meters ▪ GFA = Gross floor area ▪ Total enclosed floor area (including balconies) ▪ Excludes the following enclosed areas: TERMS DEFINED ▪ USA = Unpaved surface area ▪ The portion of the open space that is unpaved ▪ Parking, services, utilities ▪ Vertical penetrations in parking floors if not used for residential or commercial purposes ▪ Balconies exceeding 10sqm, uncovered areas, fire escape structures, etc. ▪ TGFA = Total gross floor area ▪ Includes all enclosed floor areas, no exceptions ▪ AMVB = Allowable max. volume of building ▪ OFB = Outer faces of the building ▪ FLAR = Floor and lot area ratio BUILDING BULK ▪ A volume quantity ▪ In the simplest sense, METHOD 2: FLAR ▪ Building bulk = Footprint x Height ▪ Building bulk = Footprint x Height ▪ However, the Code prescribes several different methods for determining this quantity ▪ To get footprint: METHOD 1: AMBF PROJECTION ▪ Determine the AMBF ▪ Determine the BHL (in meters) ▪ FLAR x TLA = Total floor area ▪ Total floor area/Number of storeys = Footprint ▪ Hence, building bulk is equal to: ▪ [(FLAR x TLA)/number of storeys] x BHL ▪ AMBF x BHL = Building bulk METHOD 3: AMVB METHOD 2: FLAR ▪ FLAR : Floor to lot area ratio ▪ Total floor area / lot area ▪ For example, a FLAR designation of 1.50 means that a lot measuring 100sqm may accommodate a building whose total floor area is 150sqm. ▪ In a way, FLAR tells us how many lots can fit inside the building. 1. AMBF x BHL = initial AMVB (“prism”) 2. Superimpose the angular plane originating from the RROW onto the “prism” ▪ Angular plane: a plane originating from the RROW that establishes the outer limit for walls and building projections. 3. Use the angular plane to reduce the volume of the prism. This is the AMVB. ▪ The Code defines seven lot types OTHER FORMULAS ▪ Inside lot ▪ PSO = AMBF / TLA ▪ Interior lot ▪ GFA = TLA x FLAR ▪ Corner lot ▪ TGFA = GFA + Non-GFA ▪ Through lot ▪ Corner through lot ▪ Corner through lot abutting 3 or more streets ▪ End lot RULE 8 LIGHT + VENTILATION INTENT ▪ Every building shall be designed, constructed, and equipped to provide adequate light and ventilation. VARIABLES ▪ Setbacks ▪ Site occupancy ▪ Room sizes ▪ Ceiling heights ▪ Window sizes ▪ Courts MEASUREMENT OF SITE OCCUPANCY ▪ Taken at ground level and exclusive of courts, yards, and light wells. PSO, TOSL, USA, ISA ▪ TLA = PSO + TOSL ▪ TOSL = USA + ISA ▪ USA = minimum value ▪ ISA = maximum value ▪ These values are given in Table VII.1 on p.131 LOT TYPES YARD VERSUS SETBACK ▪ Yard: the required open space left between the outermost face of the building and the property lines ▪ Setback: the width of the yard JOINING OF COURTS ▪ Minimum dimension may be reduced to 1.50m In cluster living units with adjacent courts ▪ Minimum area per court: 3.00sqm ▪ Separation wall: 2.00m high maximum PARKING SPACES AND CARPORTS ▪ If a carport is roofed, it will be considered part of the building footprint and not the TOSL FRONT YARDS AS PARKING ▪ Only allowed for single family dwelling units falling under the following zoning classifications: ▪ Basic R-2 COURTS ▪ Minimum dimension: 2.00m ▪ Hence, minimum area: 4.00sqm ▪ All inner courts shall be connected to a street or yard by a passageway at least 1.20m wide ▪ Basic R-3 ▪ R-4 FIREWALL EXTENSIONS ▪ Above the roof line: 400mm ▪ Under the eaves: 300mm ▪ From the building edges: 600mm MINIMUM CEILING HEIGHTS AIR SPACE REQUIREMENTS MINIMUM AREA OF WINDOWS MINIMUM ROOM SIZES EASEMENTS EASEMENT IS PUBLIC LAND ▪ Situated outside of private property limits ▪ Should be equally enjoyed by all members of the community ▪ The only uses allowed are those that support its public recreational character ▪ The carriageway shall be free of structures, MINIMUM EASEMENTS particularly commercial signs that will impede the view corridor and sightlines within the RROW ▪ To dignify important public/historical buildings, all forms of commercial signs intruding into the RROW leading to or away said structures shall be disallowed ACCESS TO PROPERTY ▪ No building shall be constructed unless it adjoins or has direct access to a public space, yard, or road on at least one side. ▪ Interior or rear lots shall have an access road with a minimum width of 3.00m. Provide a 4.00m wide chaflan at the intersection with the main RROW. RROW VIEW CORRIDORS + SIGHTLINES RROW AT GRADE ▪ From natural grade line to the finished surface of the carriageway or sidewalk ▪ Generally utilized for the movement of the general public (motorists and pedestrians) ▪ If utilized for whatever purpose, proponent must lease/pay the government RROW BELOW GRADE THREE RROW LEVELS ▪ RROW above grade ▪ RROW at grade ▪ From finished surface of roadway all the way down into the ground ▪ If utilized for whatever purpose, proponent must lease/pay the government ▪ RROW below grade SIDEWALKS ▪ The local planning authority shall determine which streets shall have an open sidewalk or an arcaded sidewalk, or a combination of both ▪ For a RROW width of 9.00m or more, the minimum sidewalk width shall be 1.20m on each side of the RROW. For RROW less than 9.00m, refer to Table VIII.G.3 GRADE OF SIDEWALKS RROW ABOVE GRADE ▪ From the finished surface of the roadway all the way up to the air ▪ If utilized for whatever purpose, the use or air rights must be compensated for (leased from the government) ▪ Minimum clear height: 4.27m from crown of carriageway ▪ As much as possible, sidewalks shall be level and of uniform grade throughout the length of the street ▪ When the street slope does not exceed 1/12, the sidewalk shall follow the street slope ▪ When the street slope is 1/10, the sidewalk shall be maintained level for every 20-40 meters of run, each level joined by a ramp of a slope not exceeding 1/6. PLANTING STRIPS ▪ Sidewalks 2.00m or more in width shall include on its outer side a planting strip of not less than 800mm wide up to a maximum of 1/3 of the sidewalk width ▪ The planting strip is meant to separate the curb from the sidewalk, and must always be placed near the curbline. DRIVEWAYS ACROSS SIDEWALKS ▪ If curb height = 200mm or lower, the driveway and the sidewalk shall be on the same plane. Provide entry ramp of slope 1/3 to ¼ connecting the carriageway to the sidewalk/curb. ▪ If curb height = greater than 200mm, a curb cutout for the driveway may be allowed and the driveway may be constructed along the entire width of the sidewalk. The sidewalk and the driveway shall be joined by a ramp with a slope of not more than 1/8. RULE 9 SANITATION BASIC SANITATION PROVISIONS ▪ All buildings shall be provided with the ff: ▪ Adequate and potable water supply ▪ Adequate plumbing installation ▪ Suitable wastewater treatment/disposal system ▪ Storm water drainage WATER SOURCE ▪ Potable water shall be sourced from the existing municipal waterworks system whenever possible ▪ In all cases, these projections shall not obstruct any utilities/services, unless the owner is willing to pay for the rerouting of said utilities/services. WATER QUALITY ▪ Shall conform to the criteria in the National Standards for Drinking Water WASTE DISPOSAL SYSTEM ▪ Sanitary sewage from buildings shall be discharged directly into the nearest street sanitary sewer main ▪ If no sanitary sewerage system is available, septic tanks may be used BALCONIES ▪ Clearance between sidewalk grade and lowest portion of balcony = 3.00m minimum ARCADES STORM DRAINAGE ▪ Rainwater drainage shall not discharge into the sanitary system ▪ Arcades may be constructed on sidewalks of streets whenever allowed or required by existing building and zoning regulations. ▪ Arcades shall be at least 3.00m above the sidewalk grade. NATIONAL PLUMBING CODE ▪ All plumbing installations (water supply and drainage) shall conform to the National Plumbing Code RULE 10 BUILDING PROJECTIONS OVER PUBLIC STREETS ARE PROJECTIONS BEYOND THE PROPERTY LINE ALLOWED? ▪ No. Unless otherwise allowed by the Code. DOORS + WINDOWS ▪ Unless at least 2.40m above the pavement, no door or window shall project beyond the property line when fully opened or upon opening. PROJECTIONS INTO THE RROW ▪ National roads or public highways: footings located at least 2.40m below grade may project 300mm (maximum) beyond the property line ▪ Public sidewalk: Foundations may encroach 500mm into the sidewalk if top of foundation is at least 600mm below grade CHAFLANS ▪ Every corner building or fence on a public street less than 3.60m wide shall be truncated at the corner to form a chaflan. ▪ The chaflan shall be at least 4.00m wide. ▪ When the Building Official authorizes a sidewalk to be closed, a temporary walkway at least 1.20m wide shall be provided ▪ If the street has no sidewalk, width may be reduced to 600mm. ▪ If RROW is 5.00m wide or less, no temporary walkways are allowed. FENCES + CANOPIES ▪ Fences shall entirely enclose a construction site ▪ Minimum height: 2.40 meters above curb ▪ When the horizontal distance between the OFB and the inner edge or the sidewalk is more than ½ the building height, only a 2.40m high fence is required. ▪ When the horizontal distance between the OFB and the inner edge or the sidewalk is equal or less than ½ the building height, a canopy will be also be required in addition to the fence. RULE 11 PROTECTION OF PEDESTRIANS PROTECTION OF PEDESTRIANS ▪ No person shall use or occupy a street or sidewalk for the performance of work except in accordance with this rule ▪ No work shall be performed adjacent to a public way unless pedestrians are protected as specified in this rule STORAGE IN PUBLIC PROPERTY ▪ Shall not obstruct utility provisions (fire hydrants, fire alarm box, manholes) ▪ Shall not interfere with drainage ▪ Shall not interfere with vehicular and pedestrian traffic MORTAR MIXING ▪ The mixing of mortar or concrete shall not be allowed on public streets. TEMPORARY WALKWAYS ▪ For canopies: provide a clear unobstructed height of 2.40m above the walkway RULE 12 GENERAL DESIGN REQUIREMENTS EXCAVATIONS ▪ Excavations must not endanger life or property ▪ A mezzanine floor bigger than 185sqm or having more than 18.00m in any dimension shall have at least two stairways to an adjacent floor ▪ Every floor with occupant load of 500-999 shall have at least 3 exits. ▪ Every floor with occupant load of 1000 or more shall have at least 4 exits. ▪ Any person undertaking an excavation shall ensure that the soil of the adjoining property will not cave in or settle. ▪ Cut slopes shall be no steeper than 2:1 (horizontal:vertical). WIDTH OF EXITS ▪ Total width of exits = Occupant load/165 ▪ Note: This is the total width in meters OCCUPANT LOAD ▪ The maximum number of persons that may be allowed to occupy a certain room, floor, or area ▪ Shall be determined by dividing the floor area assigned to that use by the unit area allowed per occupant as shown on Table XII.1. ▪ Floor area/unit area per occupant OCCUPANT LOAD ARRANGEMENT OF EXITS ▪ If two exits are required, the two exits must be apart by at least 1/5 of the perimeter of the area served. ▪ If three or more are required, they shall be arranged a reasonable distance apart DISTANCE TO EXITS ▪ If without a sprinkler system, 45.00m maximum ▪ If with a sprinkler system, 60.00m maximum ▪ Measured from any point in a building, measured along the line of travel EXITS DOORS ▪ When serving an occupant load of 50 or more, must swing in the direction of exit travel ▪ Double acting doors shall not be used as exits when serving a tributary load of more than 100. Must be provided with a view panel of not less than 1300 sq. cm. NUMBER OF EXITS ▪ Every building shall have at least one exit TYPE OF LOCKS ▪ Upper floors with occupant load of more than 10 shall have at least two exits ▪ Exit doors shall be openable from the inside without the use of a key or any special knowledge or effort SIZE OF DOORS ▪ Minimum width of doorway: 0.90mm ▪ Handrails shall not reduce the width of stairways by more than 100mm ▪ Minimum height of doorway: 2.00m ▪ Shall be capable of opening at least 90 degrees ▪ Maximum door leaf width: 1.20m RISER AND TREAD ▪ Maximum riser: 200mm ▪ Minimum tread: 250mm ▪ The following shall not be used as exit doors: ▪ Note: Always keep in mind that the NBC requirement is a maximum for risers, and a minimum for treads ▪ Revolving doors STAIRWAY HEADROOM ▪ Sliding doors ▪ Not less than 2.00m measured from the nosing PROHIBITED DOORS ▪ Overhead doors FLOOR LEVEL CHANGE AT DOORS LANDINGS ▪ There shall be a floor or a landing on each side of an exit door ▪ Length = stairway width ▪ The floor/landing shall not be more than 50mm lower than the door threshold ▪ Exception: For Group A or B occupancies, a door may open over the top step provided that the landing is not more than 200mm from the floor level and the door does not swing over the top step. ▪ If the stairway has a straight run, landing length does not need to exceed 1.20m ▪ Landing width shall not be reduced by more than 100mm by any door when fully opened ▪ Max. vertical distance between landings: 3.60m HANDRAILS ▪ Stairways shall have handrails on each side CORRIDORS ▪ Minimum width: 1.10m ▪ If a stairway is more than 3.00m in width, at least one intermediate handrail shall be provided ▪ This width shall be unobstructed, except that trim handrails and doors when fully opened shall not reduce the required with by more than 200mm. ▪ Height of handrails: 800-900mm above the nosing ▪ Doors in any position shall not reduce the width by more than ½. ▪ Exceptions: DEAD ENDS of treads ▪ In Group A or B occupancies, stairways 1.10m or less in width serving one individual dwelling may have one handrail only ▪ Maximum length: 6.00m ▪ Stairways having less than four risers need not have handrails STAIRWAY WIDTHS BASEMENT STAIRWAYS ▪ 1.10m for occupant load more than 50 ▪ If a basement stairway and a stairway to an upper storey terminate at the same exit enclosure, a barrier shall be provided to prevent persons from continuing into the basements ▪ 0.90m for occupant load of 50 or less ▪ 0.75m for occupant load of less than 10 (private) ▪ Also provide directional exit signs ▪ Automatic fire extinguishing systems are required for the following: WINDING STAIRWAYS ▪ Habitable storeys with an area of 200 sqm or more with an occupant load of more than 20 ▪ Allowed as exits as long as the required tread (250mm) is provided at a point 300mm away from the narrow end ▪ Dressing rooms, rehearsal rooms, workshops or factories with occupant load of more than 10 ▪ However, the tread must not be narrower than 150mm at any point ▪ Assembly halls under Group H and I with occupant load of more than 500 DRY STANDPIPES CIRCULAR STAIRWAYS ▪ May be used as exits provided that the minimum width of run is not less than 250mm AISLES ▪ Aisles leading to an exit shall be provided for all portions with installed seats, tables, etc. ▪ Shall be at least 0.80m wide if serving only one side, or 1.00m if serving both sides ▪ This minimum width shall be measured at the point farthest from the exit, and shall be increased by 30mm for every meter in length towards the exit AISLE TRAVEL DISTANCE ▪ The line of travel to an exit door by an aisle shall not be more than 45.00m ▪ Maximum 7 seats between wall and aisle ▪ Maximum 14 seats between two aisles ▪ All buildings 4 or more storeys in height shall be equipped with one or more dry standpipes ▪ Standpipes shall be located within enclosed stairway landings ▪ Siamese connections shall be located on the street-front of a building 300mm-1200mm above grade WET STANDPIPES ▪ The following shall have wet standpipes: ▪ Group H or I occupancy of any height ▪ Group C occupancy 2 or more storeys in height ▪ Groups B, D, E F and G 3 or more storeys in height ▪ Group G and E occupancy over 1800 sqm in area ▪ Exemption: ▪ Group H buildings without stage whose seating capacity is less than 500 ▪ Maximum slope: 1 in 8 LOCATIONSOF WET STANDPIPES AISLE TRAVEL DISTANCE ▪ The number of seats between aisles may be increased to 30 if: ▪ Exit doors are provided along each aisle at the rate of 1 pair of exit doors for every 5 rows of seats ▪ The back-to-back distance between seats is 1.00m minimum ▪ All portions of the building are within 6.00m of a nozzle attached to a hose 23.00m in length (standpipes 58.00m apart) ▪ For assembly occupancies: ▪ 1 outlet on each side of the stage ▪ 1 at the rear of the auditorium ▪ 1 at the rear of the balcony ▪ Minimum clear width of exit doors is 1.70m FIRE EXTINGUISHING SYSTEMS RULE 13 ELECTRICAL + MECHANICAL ▪ Humidity: 50% - 60% ▪ Air movement: 4.60-7.60 meters per minute REFERRAL CODES ▪ All electrical systems and installations shall conform to the provisions of the Philippine Electrical Code pursuant to RA 7920 (Electrical Eng. Law) WATER PUMPING ▪ Installation of pumping equipment directly from the public water supply system is prohibited ▪ All mechanical systems and installations shall conform to the provisions of the Philippine Mechanical Code pursuant to RA 8495 (Mech. Eng. Law) RULE 14 CLEARANCE OF SERVICE DROPS PHOTO FILMS + X-RAY FILMS ▪ 2.50m from highest point of roofs ▪ 3.00m from the ground ▪ 1.00m (horizontal) from windows/porches ▪ 5.50m from the crown of the street or sidewalk ▪ No service drop conductors or any other wiring shall pass over swimming pools FILM STORAGE ROOMS ▪ Provide automatic fire extinguishing systems for the following: ▪ When unexposed films in shipping containers exceed 14.00 cubic meters ▪ When shelving used for storing film exceeds 1.40 cubic meters in capacity ELEVATORS ▪ No films shall be stored within 600mm of steam ▪ Hoist way pit: minimum 600mm from underside of car to bottom of pit pipes, chimneys, or other sources of heat ▪ Maximum four elevators in a single hoist way ▪ Residential buildings 5 storeys or higher shall have at least one passenger elevator on 24-hour constant operation ESCALATORS ▪ Maximum inclination: 30° from horizontal ▪ Width between ballustrades: 560mm-1200mm. Shall not exceed the width of the step by more than 330mm ▪ Speed: 38 meters per minute maximum (common rule is 90-120 fpm/27.5-36.5mpm) RULE 15 PREFABRICATED CONSTRUCTION PREFABRICATED ASSEMBLY ▪ A structural unit, the integral parts of which have been built-up or assembled prior to incorporation in the building ▪ To determine structural adequacy, they shall pass special tests conducted by accredited material testing laboratories RULE 16 AIR CONDITIONING ▪ Comfortable cooling standards: ▪ Temperature: 20°-24° Celsius PLASTICS APPROVED PLASTICS ▪ Those which have a flame-spread rating of 225 or less ▪ Those with a smoke density not greater than that obtained from the burning of untreated wood both sides of the glass are the same level (guardrails, etching, flower bins) ▪ Glass in large areas along shopping malls, commercial buildings, institutional buildings, etc. ▪ Those whose products of combustion are no more toxic than those of untreated wood RULE 19 PLASTIC DOORS ▪ Plastic doors are allowed except for entrance doors and exit doors, which should be of materials other than plastics USE OF COMPUTERS GENERAL REQUIREMENTS ▪ The use of computers for all or any part of building design is permitted provided that all programs to be used are documented RULE 17 SHEET METAL SPRAYBOOTHS PROGRAM DOCUMENTATION SPRAY PAINT BOOTHS ▪ File with the OBO a reference to a publication accessible to him where a detailed description of the program including a description of the algorithms are found ▪ Paint spray booths shall be constructed of not less than No. 18 US Gauge in thickness ▪ The area of a spray paint booth shall not exceed 150sqm ▪ The floor of the booth, if combustible, shall be covered with non-combustible material ▪ Shall permit the free passage of exhaust air RULE 18 GLASS + GLAZING GENERAL REQUIREMENTS ▪ Applies to all exterior glass/glazing except Groups A, B, and J not taller than three storeys ▪ The software name, version number and the developer and its address shall be provided as part of documentation RULE 20 SIGNS SIGNS ▪ No sign shall be erected in such a manner as to confuse or obstruct the view or interpretation of any official traffic sign/device ▪ Signs in any foreign language shall have a translation in English or the local dialect ▪ Each glass panel shall bear the manufacturer’s label designating the type and thickness of glass ROOF SIGNS ▪ Glass panels with special performance characteristics shall bear the manufacturer’s label indicating said characteristics ▪ No signs shall be installed on rooftops of buildings of wooden structures or of buildings with wooden roof framing ▪ Measures shall be taken to keep persons from walking into fixed glass panels where the floor on ▪ Provide grounding of metallic parts of roof signs exposed to lightning GROUND SIGNS ▪ Shall be located within the property line and under no circumstances shall they occupy the RROW PROJECTING SIGNS ▪ On non-arcaded RROW: ▪ Signs shall not project more than 1.20m ▪ On arcaded RROW: ▪ Signs shall not project more than 0.60m ▪ Buildings abutting RROW without sidewalks: ▪ Signs shal not project more than 0.30m ▪ Minimum vertical clearance ▪ Non-arcaded RROW: 3.00m from road surface to lowest part of signs ▪ Arcaded RROW: 5.00m from road surface to lowest part of signs This work is the property of Arch. Pedro Santos Jr. Always check the values given in this document against the original references. For questions or corrections, contact he author at arch.pedrosantosjr@gmail.com CreativeCommons This presentation is licensed under the creative commons attribution-noncommercialsharealike4.0 international license. To view a copy of this license, visit http://creativecommons.Org/licenses/by-ncsa/4.0/
0
No more boring flashcards learning!
Learn languages, math, history, economics, chemistry and more with free StudyLib Extension!
- Distribute all flashcards reviewing into small sessions
- Get inspired with a daily photo
- Import sets from Anki, Quizlet, etc
- Add Active Recall to your learning and get higher grades!
Add this document to collection(s)
You can add this document to your study collection(s)
Sign in Available only to authorized usersAdd this document to saved
You can add this document to your saved list
Sign in Available only to authorized users