PD 1096 (Arch. Pedro Santos Jr.)

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PD 1096National Building Code of the Philippines

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Authorship + DisclThis work is the property of Arch. PedroAlways check the values given in this

against the original references. For q

corrections, contact tarch.pedrosantosjr@





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RULE 1General Provisions






PURPOSE OF THE CODE

▪ To provide a framework of minimum stanand requirements for all buildings in order regulate their location, design, quality of mconstruction, and use.






SCOPE OF APPLICATION

▪ The National Building Code (NBC) applies design, location, siting, construction, alterarepair, conversion, use, occupancy, maintemoving, demolition of and addition to pub

private buildings, except traditional dwellinBP 220 projects.






Definition of t






ConstructionAll on-site work done from site preparation, excavfoundation, assembly of all the components andinstallation of utilities and equipment of

buildings/structure






AdditionAny new construction which increases the heighof an existing building/structure






AlterationConstruction in a building/ structure involving chathe materials used, partitioning, location/ size of ostructural parts, existing utilities and equipment b

not increase the overall area thereof.






RenovationAny physical change made on a building/ structuincrease its value, utility and/ or to improve its aquality






ConversionA change in the use or occupancy of a building/ sor any portion/s thereof which has different requi






RepairRemedial work done on any damaged or deteriorportion/s of a building/structure to restore its origcondition






DemolitionThe systematic dismantling or destruction of a bstructure, in whole or in part






Ancillary building/strucA secondary building/ structure located within thepremises, the use of which is incidental to that ofbuilding/structure






RULE 2Administration + Enforcement






THE SECRETARY

▪ Secretary of the DPWH

▪ Duties include:

▪ Policy making

▪

Memorandum circulars▪ Prescription of fees

▪ Appointment of building officials in all munici






THE BUILDING OFFICIAL

▪ Tasked with the enforcement of the Code jurisdiction

▪ Issues, denies, suspends and revokes per

▪

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 constructed of native materials (bamboo, nip

lumber), the total cost of which does not excePHP15,000.






PROHIBITED ACTS

▪ Proceeding with work without a permit

▪ Unauthorized deviations from the drawingconstruction

▪

Non-compliance with work stoppage orde▪ Non-compliance with order to demolish






PROHIBITED ACTS

▪ Use of a building without securing a CertifOccupancy

▪ Change in use without the correspondingCertification of Change of Use

▪ Failure to post Cert. of Occupancy

▪ Change in type of construction without pe






DANGEROUS BUILDINGS

▪ Structural hazard

▪ Fire hazard

▪ Unsafe electrical wiring

▪ Unsafe mechanical installation

▪ Inadequate sanitation and health facilities

▪ Architectural deficiency






OPTIONS FOR DANGEROUS B

▪ Repair

▪ Vacation

▪ Demolition






RULE 3Permits






BUILDING PERMIT

▪ A written authorization granted by the BuiOfficial to an applicant allowing him to prowith construction after plans, specificatioother pertinent documents have been foun

in conformity with the Code






WHEN IS A PERMIT REQUIRED

▪ Before constructing, altering, repairing, conmoving, adding to, demolishing a building.






BUILDING PERMIT EXEMPTIO

▪ Minor constructions

▪ Repair works






MINOR CONSTRUCTION

▪ Minor structures 6sqm. or less detached fother buildings, for private use only. (Examsheds, poultry houses, greenhouses)

▪ Open terraces or patios not exceeding 20s






MINOR CONSTRUCTION

▪ Window grilles▪ Garden pools 500mm deep or shallower

▪ Garden masonry walls not exceeding 1.20height






REPAIRS

▪ Not involving structural members▪ Of non-load bearing partition walls

▪ Not involving addition or alteration

▪ Of doors, windows, floors, fences and wal▪ Of plumbing fixtures






PERMIT REQUIREMENTS

▪ Application forms▪ If lot is owned,

▪ OCT or TCT

▪ Tax declaration

▪ Current real property tax receipt






PERMIT REQUIREMENTS

▪ If lot is NOT owned,▪ Contract of Lease or Deed of Absolute Sale in

TCT

▪ Five sets of plans and specs, signed and s

by various professionals






ISSUANCE OF PERMITS

▪ 15 days from payment of fees






LIABILITY CLAUSE

▪ Article 1723 of the Civil Code states that engineer or architect who drew up the planspecifications is liable for 15 years fromcompletion of the building should it collapto defects in the plans or the ground.





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LIABILITY CLAUSE

▪

In case the building collapses due to defecconstruction or the use of inferior materiacontractor, along with the construction sushall be liable.







EXPIRATION OF PERMITS

▪

Construction does not commence within from date of issue

▪ Construction does not resume 120 days asuspension or abandonment of work

NON-ISSUANCE SUSPENSION







NON-ISSUANCE, SUSPENSIONREVOCATION

▪

Errors in plans and specs▪ Incorrect or inaccurate data declared

▪ Non-compliance with the Code







INSPECTION + SUPERVISION

▪

The owner of the building must engage thservices of a licensed architect or civil engundertake the full-time inspection andsupervision of the construction.







RULE 4Types of Construction







TYPE I

▪

Wood construction







TYPE II

▪

Wood construction with fire-resistant mat▪ One-hour fire-resistive throughout







TYPE III

▪

Masonry and wood construction▪ One hour fire resistive throughout

▪ Incombustible exterior walls







TYPE IV

▪

Steel, iron, concrete, or masonry construct▪ Incombustible interiors (ceilings, walls)







TYPE V

▪

Four-hour fire resistive throughout▪ Structural elements of steel, iron, concrete

masonry







RULE 5Fire Zones







FIRE ZONE

▪

An area within which only certain types ofconstruction are allowed, based on theiroccupancy, type of construction, and resisfire







FIRE ZONE DESIGNATIONS

1. Non-fire restricted zones▪ All types of construction allowed

2. Fire restrictive zones

▪ Type I construction NOT allowed

3. Highly fire restrictive zones

▪ Types I, II, and III NOT allowed







BUILDINGS IN MULTIPLE FIRE Z

▪

Shall be considered as part of the more rezone if more than 1/3 of its total floor arethat zone






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RULE 6Fire Resistive Requirements







FIRE RESISTIVE RATING

▪

The degree to which a material can withst▪ Usually expressed in the form of a time pe

rating (how long a material can withstand burned)







FIRE RESISTIVE STANDARDS







RULE 7Occupancies + Zones + Requirements







OCCUPANCY VERSUS ZONING

▪

Occupancies are assigned to buildings, wzones are assigned to lands.

OCC C S







OCCUPANCIES

▪

A – Residential dwellings▪ B – Residentials, hotels, apartments

▪ C – Education and recreation

▪

D – Institutional▪ E – Business and mercantile

OCCUPANCIES







OCCUPANCIES

▪

F – Industrial▪ G – Storage and hazardous

▪ H – Assembly other than Group I

▪

I – Assembly with 1,000 or more occupan▪ J - Accessory

ZONING







ZONING

▪

R –Residential▪ C – Commercial

▪ GI – General institutional

▪

I – Industrial▪ UTS – Utilities, Transportation, Services

▪ SPE - Special

ZONING







ZONING

▪

PRE - Park structures, recreation, entertain▪ CUL – Cultural

▪ A – Agricultural

▪

AI – Agroindustrial▪ PUD – Planned unit development







Occupa

A RESIDENTIAL DWELLINGS







A: RESIDENTIAL DWELLINGS

▪

A-1: Residential building for single familyoccupants

▪ A-2: Residential building for non-leasingoccupants not exceeding 10 persons

B RESIDENTIALS HOTELS APART







B: RESIDENTIALS, HOTELS, APART

▪

Multiple dwelling units including boarding lodging houses, hotels, apartment buildingrowhouses, convents, monasteries and otsimilar building each of which accommodmore than 10 persons.

C: EDUCATION + RECREATION







C: EDUCATION + RECREATION

▪

Buildings used for school or day-care purpnot classified in Group H or I occupancies

D: INSTITUTIONAL







D: INSTITUTIONAL

▪

D-1: Institutions where personal liberties arestrained (mental hospitals, jails)

▪ D-2: Institutions for the care of non-ambulpatients and children under kindergarten a

▪ D-3: Institutions for ambulatory patients ahomes for children over kindergarten age

E: BUSINESS + MERCANTILE







E: BUSINESS + MERCANTILE

▪ E-1: No work is done except exchange of pmaintenance without open flame, weldinghighly flammable liquids (gasoline filling sstorage garage)

▪

E-2: Wholesale and retail stores, office buidining establishments

▪ E-3: Aircraft hangars and open parking ga(no repair work)

F: LIGHT INDUSTRIAL






Sh Alik 4 0 I t ti l Li T i f thi li i it htt // ti

F: LIGHT INDUSTRIAL

▪ Light industrial

▪ Ice plants, power plants, pumping plants, cstorage, factories and workshops usingincombustible and non-explosive material

G: STORAGE + HAZARDOUS







▪ G-1: Medium industrial, storage of highlyflammable materials

▪ G-2: Medium industrial, storage of flammamaterials: dry cleaning plants, paint stores

painting rooms▪ G-3: Medium industrial structures where lo

combustible fibers are generated: wood westablishments








▪ G-4: Medium industrial for repair garages engine manufacturing

▪ G-5: Medium industrial for aircraft repair

H: ASSEMBLY FOR LESS THAN







▪ H1: Assembly buildings with stage for less1,000

▪ H2: Assembly buildings without stage for more

▪ H3: Assembly buildings without stage for than 300








▪ H4: Recreational/tourism developments nincluded in other H classifications (stadiumreviewing stands, and amusement parks)

I: ASSEMBLY FOR 1 000 OR MOR






I: ASSEMBLY FOR 1,000 OR MOR

▪ Any assembly building with a stage and anoccupant load of 1,000 or more

J: ACCESSORY






J: ACCESSORY

▪ J1: Agricultural structures

▪ J2: Carports/garages, fences, towers and

▪ J3: Stages, courts, tombs, mausoleums, zbanks






Z

R1






R1

▪ Low-density residential zone

▪ Characterized by single-family and single-detached dwellings

R2






R2

▪ Medium-density residential zone

▪ Characterized by low-rise single-attached,or multilevel buildings for use as multiple fdwellings

R2






R2

▪ Further subclassified into:

▪ Basic R2

▪ Single attached or duplex, 1-3 floors

▪ Maximum R2

▪ Low-rise multi-level building, 3-5 floors

R3






R3

▪ High-density residential zone

▪ Characterized low-rise or medium-rise bufor use as multiple family dwellings

▪ Includes low-rise or medium-rise condomi

buildings

R3






R3

▪ Further subclassified into:

▪ Basic R3

▪ Rowhouses 1-3 storeys high

▪ Maximum R3

▪ Medium-rise multilevel structure 6-12 high

R4






R4

▪ Medium to high-density residential zone

▪ Characterized by low-rise townhouses or bfor use as multiple family dwellings

▪ Refers to structures on an individual lot

(“townhouse”)

R5






R5

▪ Very high density residential zone

▪ Characterized by medium-rise to high-risecondominiums

C1






C1

▪ Light commercial

▪ Neighborhood to community in scale

▪ Low-rise buildings (1-3 storeys)

▪ Low-intensity trade/activity

▪ Example: Small shopping centers

C2






▪ Medium commercial

▪ City or municipal in scale

▪ Medium-rise buildings (3-5 storeys)

▪ Medium to high intensity trade

▪ Example: Shopping centers

C3






▪ Metropolitan commercial

▪ Metropolitan in scale

▪ Medium to high-rise buildings (3-5 storeys

▪ Very high intensity trade

▪ Example: Large to very large shopping ma

GI






▪ General institutional

▪ Community to national level of institutionaLow-rise to high-rise.

▪ Two types:

▪ Education/Recreation

▪ Medical/Government

I-1 (INDUSTRIAL)






( )

▪ Light industrial use

▪ Low-rise but sprawling

▪ Low-intensity manufacturing

I-2 (INDUSTRIAL)






( )

▪ Medium industrial use

▪ Low-rise but sprawling

▪ Medium-intensity manufacturing

UTS (UTILITIES, TRANSPO, SER






(

▪ Utilitarian, functional uses

▪ Low-rise to medium rise

▪ Low to high-intensity community supportfunctions

▪

Two clusters:▪ Transport terminals, intermodals, depots

▪ Power/water generation/distribution, telcos, wmanagement facilities

SPE (SPECIAL)






( )

▪ Other vertical facilities not yet mentioned

▪ Included cemeteries and memorial parks

PRE (PARKS, RECREATION,ENTERTAINMENT)






)


▪ Low to medium intensity recreational funcrelated to educational uses (parks on camother recreational/assembly structures oncampus)

CUL (CULTURAL)






▪ Community to national level of use or occ


A (AGRICULTURAL)






▪ Low to medium rise

▪ Low to high intensity agricultural activity

▪ Includes farms, but also offices and facilitagricultural research and training

AI (AGROINDUSTRIAL)






▪ Low rise

▪ Low to high intensity agroindustrial activit

▪ Includes offices and facilities for agroindueducation and research

PUD (PLANNED UNIT DEVELOPM






▪ Land development or redevelopment sche

a new project which has a CDMP (CompreDevelopment Masterplan) or equivalent

▪ Example: Bonifacio Global City

MIXED OCCUPANCIES






▪ Rule of thumb: The building adheres to the

requirements.

▪ Exceptions:

▪ If it’s a one-storey building, in which case eacshall conform to applicable rules

▪ If the minor occupancy does not exceed 10% building, in which case it is ignored






Locatipro

RIGHT OF WAY






▪ No building shall be constructed unless it

or has direct access to a public space, yarstreet on at least one of its sides.

EAVES OVER WINDOWS






▪ Eaves over required windows shall at least

750mm from the side and rear property lin

FIREWALLS






▪ A fireproof barrier used to prevent the spre

fire between or through buildings

▪ Why are firewalls important? Because whare built, the building or part of the buildingextends into the setbacks.

ALLOWABLE FIREWALLS






▪ R1: Not allowed

▪ However, an abutment upto 3.20m high is OK forcarports provided thatabove 1.50m, theabutment shall beconstructed of perforatedconcrete blocks.

ALLOWABLE FIREWALLS






▪ R2: One side only

▪ Maximum 80% of the length of side property






ALLOWABLE FIREWALLS






▪ R3: Two configurations are allowed:

▪ 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)


▪ Two storeys high for side, 3.20m high for rear






ALLOWABLE FIREWALLS






▪ R4: Two sides

▪ Maximum 85% of each side


▪ Maximum height: three storeys






ALLOWABLE FIREWALLS






▪ R5: Two configurations allowed:

▪ Option A: Two sides▪ Maximum 75% of each side


▪ Maximum height: 8 storeys

▪ Option B: One side + Rear

▪ Maximum 65% of side and 50% of rear


▪ Maximum height: 8 storeys for side, 14m for rear






ALLOWABLE FIREWALLS






▪ 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






Allowfloor

TGFA






▪ Total gross floor area

▪ The total floor space inside the building

▪ Keyword: inside/enclosed

▪ Includes services/parking (unlike GFA)

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▪ Use of firewalls






Building h

BHL






▪ Building height limit

▪ Given in Table VII.2 on p.89

▪ Depends on zoning

HOW IS BUILDING HEIGHT MEA






▪ From established grade line to the topmos

portion of the building▪ Excludes allowed projections above the ro

▪ Signage

▪ Masts

▪ Antenna or telecom tower

ESTABLISHING THE GRADE L






▪ Grade line = highest adjoining sidewalk or

grade line▪ But if grade is sloping:

▪ If less than 3 meters diff., take highest grade

▪ If more than 3 meters diff., take the average

ESTABLISHING THE TOP OFBUILDING






▪ If roof is flat, top = rooftop

▪ If roof is sloping, top = middle of roof heig

HEIGHT LIMIT PROJECTIONS

d l






▪ Towers, spires and steeples

▪ If made of combustible materials, 6.0m abov

▪ If made of incombustible materials, limited ostructural design






BHL + RROW

Th RROW idth l di t t th BHL






▪ The RROW width also dictates the BHL:

▪ 6-7m RROW: 3.0 storeys or 9.0m



▪

Only exceptions: PUD






Pa

PARKING SLOT SIZES






Vehicle Width of parking slot Length or p

Car

Perpendicular parking 2.50m 5.0

Parallel parking 2.15m 6.0

Jeepney 3.00m 9.0Standard truck/bus 3.60m 12.0

Articulated truck 3.60m 18.0

PARKING REQUIREMENTS

Given in Table VII 4 on p 100






▪ Given in Table VII.4 on p.100

▪ Based on occupancy and lot/floor areas

SAMPLE PARKING REQUIREM

Hotels






▪ Hotels

▪ If highly urbanized, 1 slot for every 3 rooms

▪ If not, 1 slot for every 7 rooms

▪ 2 tourist bus parking slots

▪ 1 loading slot for articulated truck


▪ Churches






▪ Churches

▪

For every 50sqm. of congregation area, provide:▪ 1 car slot

▪ 1 jeepney slot

▪ Public universities

▪

1 car slot for every 5 classrooms▪ 1 loading space for 2 jeepney or shuttle slots

▪ 1 school bus for every 200 students


▪ Public hospital






▪ Public hospital

▪ 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 g

floor area

▪ Add truck maneuvering space outside RROW

FRACTIONS IN COMPUTATIO

▪ When computing for parking slots a fract






▪ When computing for parking slots, a fract

50% or higher shall be considered as one▪ In all cases, at least one slot shall be provi

unless otherwise allowed.

OFF-SITE PARKING LOTS

▪ If a multi-floor parking garage is located w






▪ If a multi floor parking garage is located w

200-meter radius of the building, 20% of threquired parking provisions may be servedmulti-floor parking garage.

OFF-SITE PARKING LOTS

▪ Reserved or leased parking slots may als






▪ Reserved or leased parking slots may als

the parking requirements if:▪ The slots are in a permanent parking building

in a vacant parking lot.

▪ The said parking building is:

▪

Not more than 100m away, if residential▪ Not more than 200m away, if commercial

MANEUVERING SPACE

▪ Using the RROW as a maneuvering space






Using the RROW as a maneuvering space

allowed▪ To prevent this, direct access of

parking/loading/utility slots to the RROW sdisallowed

TRAFFIC-GENERATING BUILD

▪ Example: shopping malls






Example: shopping malls

▪ The distance between such buildings and road intersections is regulated

▪ The building ingress and the intersection sat least 50m apart (measured between thenearest curbs)






FRONT YARDS AS PARKING

▪ Not allowed for the following:






Not allowed for the following:

▪ R2 Maximum▪ R3 Maximum

▪ GI

▪ C1, C2 and C3

▪ 50% of front yard may be used as parking Basic and R3 Basic






Minimum requiremGroup A dwe

SANITATION

▪ At least one sanitary toilet and adequate w






y q

and draining facilities

FOUNDATION

▪ At least 250mm thick






▪ At least 600mm below the surface of the g

STRUCTURAL LOADS

▪ First floor live load: 200kg/sqm






g q

▪ 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 gendimensions prescribed in Rule 12.

ENTRANCE + EXIT

▪ At least one entrance, and another one for






Developco

TERMS DEFINED

▪ TLA = Total lot area






▪ PSO = Percentage of site occupancy▪ The part of the lot occupied by the building (A

building footprint expressed in %)

▪ TOSL = Total open space within lot

▪ The part of the lot NOT occupied by the buildi

▪ TLA = PSO + TOSL

TERMS DEFINED

▪ USA = Unpaved surface area






▪

The portion of the open space that is unpaved

▪ ISA = Impervious surface area

▪ The portion of the open space that is paved

▪

Since “open space” = TOSL,▪ TOSL = USA + ISA

TERMS DEFINED

▪ MACA = PSO + ISA






▪

Hence, TLA = MACA + USA▪ Note: MACA stands for Maximum Allowable Construc






TERMS DEFINED

▪ AMBF = Allowable max. building footprintFootprint expressed in square meters






▪ Footprint expressed in square meters

▪ GFA = Gross floor area▪ Total enclosed floor area (including balconies)

▪ Excludes the following enclosed areas:▪ Parking, services, utilities

▪

Vertical penetrations in parking floors if not used for rescommercial purposes

▪ Balconies exceeding 10sqm, uncovered areas, fire escastructures, etc.

TERMS DEFINED

▪ TGFA = Total gross floor area






▪

Includes all enclosed floor areas, no exception

▪ AMVB = Allowable max. volume of buildin

▪ OFB = Outer faces of the building

▪

FLAR = Floor and lot area ratio

BUILDING BULK

▪ A volume quantity






▪ In the simplest sense,▪ Building bulk = Footprint x Height

▪ However, the Code prescribes several diffemethods for determining this quantity

METHOD 1: AMBF PROJECTIO

▪ Determine the AMBF






▪ Determine the BHL (in meters)

▪ AMBF x BHL = Building bulk

METHOD 2: FLAR

▪ FLAR : Floor to lot area ratio






▪

Total floor area / lot area▪ For example, a FLAR designation of 1.50 mea

lot measuring 100sqm may accommodate a whose total floor area is 150sqm.

▪ In a way, FLAR tells us how many lots can fit building.






METHOD 2: FLAR

▪ Building bulk = Footprint x Height






▪ To get footprint:▪ FLAR x TLA = Total floor area

▪ Total floor area/Number of storeys = Footprin

▪ Hence, building bulk is equal to:

▪ [(FLAR x TLA)/number of storeys] x BHL

METHOD 3: AMVB

1. AMBF x BHL = initial AMVB (“prism”)






2. Superimpose the angular plane originatinthe RROW onto the “prism”

▪ Angular plane: a plane originating from the RRestablishes the outer limit for walls and buildin

projections.3. Use the angular plane to reduce the volu

the prism. This is the AMVB.





OTHER FORMULAS

▪ PSO = AMBF / TLA




▪ GFA = TLA x FLAR▪ TGFA = GFA + Non-GFA






RULE 8






Light + Ventilation

INTENT

▪ Every building shall be designed, construcequipped to provide adequate light and ve






q pp p q g

VARIABLES

▪ Setbacks






▪

Site occupancy▪ Room sizes

▪ Ceiling heights

▪

Window sizes▪ Courts

MEASUREMENT OF SITEOCCUPANCY

▪ Taken at ground level and exclusive of couyards, and light wells.






y g

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.

LOT TYPES

▪ The Code defines seven lot types

▪ Inside lot






▪ Interior lot

▪ Corner lot

▪ Through lot

▪ Corner through lot

▪ Corner through lot abutting 3 or more streets

▪ End lot






YARD VERSUS SETBACK

▪ Yard: the required open space left betweeoutermost face of the building and the pro

l






lines

▪ Setback: the width of the yard






COURTS

▪ Minimum dimension: 2.00m

▪

H i i 4 00






Hence, minimum area: 4.00sqm▪ All inner courts shall be connected to a str

yard by a passageway at least 1.20m wide






JOINING OF COURTS

▪ Minimum dimension may be reduced to 1cluster living units with adjacent courts






▪ Minimum area per court: 3.00sqm

▪ Separation wall: 2.00m high maximum






PARKING SPACES AND CARP

▪ If a carport is roofed, it will be considered the building footprint and not the TOSL






FRONT YARDS AS PARKING

▪ Only allowed for single family dwelling uniunder the following zoning classifications:

Basic R 2






▪ Basic R-2

▪ Basic R-3

▪ R-4

FIREWALL EXTENSIONS

▪ Above the roof line: 400mm

▪

Under the eaves: 300mm






Under the eaves: 300mm▪ From the building edges: 600mm






MINIMUM CEILING HEIGHTS

Artificiallyventilated

Natuventi

Ground floor 2 70m 2 7






Ground floor 2.70m 2.7

Second floor 2.40m 2.7

Succeeding floors 2.10m 2.7

Mezzanines 1.80m 2.7






MINIMUM ROOM SIZES

Minimumarea

Minidime

Room for human 6 00sqm 2 0






Room for humanhabitation

6.00sqm 2.0

Kitchen 3.00sqm 1.5

Toilet and bath 1.20sqm 0.9

HABITABLE ROOM






KITCHEN






TOILET + BATH






AIR SPACE REQUIREMENTS

Air space/personF

area/

School rooms 3 00 cubic meters 1 0






School rooms 3.00 cubic meters 1.0

Workshops,factories, offices

12.00 cubic meters

Habitable rooms 14.00 cubic meters

MINIMUM AREA OF WINDOWSMinimum window

areaAbsmin

Habitable rooms 10% of floor area 1.0






Habitable rooms 10% of floor area 1.0

Bathrooms, laundryrooms, etc.

5% of floor area 240s





EASEMENT IS PUBLIC LAND

▪ Situated outside of private property limits

▪ Should be equally enjoyed by all memberscommunity




community

▪ The only uses allowed are those that supppublic recreational character

MINIMUM EASEMENTS






R






R

VIEW CORRIDORS + SIGHTLIN▪ The carriageway shall be free of structures

particularly commercial signs that will imp

view corridor and sightlines within the RRO






g▪ To dignify important public/historical build

forms of commercial signs intruding into tRROW leading to or away said structures s

disallowed






ACCESS TO PROPERTY▪ No building shall be constructed unless it

or has direct access to a public space, yar

road on at least one side.






▪ Interior or rear lots shall have an access roa minimum width of 3.00m. Provide a 4.0chaflan at the intersection with the main R






THREE RROW LEVELS▪ RROW above grade

▪ RROW at grade

▪ RROW below grade






▪ RROW below grade





RROW AT GRADE▪ From natural grade line to the finished sur

the carriageway or sidewalk

▪ Generally utilized for the movement of the




public (motorists and pedestrians)

▪ If utilized for whatever purpose, proponentlease/pay the government

RROW BELOW GRADE▪ From finished surface of roadway all the w

down into the ground

▪ If utilized for whatever purpose, proponent






lease/pay the government






SIDEWALKS▪ The local planning authority shall determin

streets shall have an open sidewalk or an

sidewalk, or a combination of bothF RROW id h f 9 00 h






▪ For a RROW width of 9.00m or more, theminimum sidewalk width shall be 1.20m oside of the RROW. For RROW less than 9.0

refer to Table VIII.G.3






GRADE OF SIDEWALKS▪ As much as possible, sidewalks shall be leve

uniform grade throughout the length of the s

▪ When the street slope does not exceed 1/12,sidewalk shall follow the street slope






sidewalk shall follow the street slope

▪ When the street slope is 1/10, the sidewalk smaintained level for every 20-40 meters of ru

level joined by a ramp of a slope not exceedin






DRIVEWAYS ACROSS SIDEWA▪ If curb height = 200mm or lower, the drive

the sidewalk shall be on the same plane. P

entry ramp of slope 1/3 to ¼ connecting thcarriageway to the sidewalk/curb.






g y






DRIVEWAYS ACROSS SIDEWA▪ If curb height = greater than 200mm, a cur

cutout for the driveway may be allowed an

driveway may be constructed along the enwidth of the sidewalk. The sidewalk and th






driveway shall be joined by a ramp with a snot more than 1/8.






PLANTING STRIPS▪ Sidewalks 2.00m or more in width shall inc

its outer side a planting strip of not less th

800mm wide up to a maximum of 1/3 of tsidewalk width






▪ The planting strip is meant to separate thefrom the sidewalk, and must always be pla

near the curbline.





RULE 9Sanitation




BASIC SANITATION PROVISIO▪ All buildings shall be provided with the ff:

▪ Adequate and potable water supply

▪ Adequate plumbing installation

▪ Suitable wastewater treatment/disposal syste






Suitable wastewater treatment/disposal syste

▪ Storm water drainage

WATER SOURCE▪ Potable water shall be sourced from the e

municipal waterworks system whenever p






WATER QUALITY▪ Shall conform to the criteria in the Nationa

Standards for Drinking Water






WASTE DISPOSAL SYSTEM▪ Sanitary sewage from buildings shall be

discharged directly into the nearest street

sewer main▪ If no sanitary sewerage system is availabl






y g ytanks may be used

STORM DRAINAGE▪ Rainwater drainage shall not discharge int

sanitary system






NATIONAL PLUMBING CODE▪ All plumbing installations (water supply an

drainage) shall conform to the National Pl

Code






RULE 10Building Projections Over Public Streets






ARE PROJECTIONS BEYOND T

PROPERTY LINE ALLOWED?▪ No. Unless otherwise allowed by the Code






PROJECTIONS INTO THE RRO▪ National roads or public highways: footing

located at least 2.40m below grade may p

300mm (maximum) beyond the property l▪ Public sidewalk: Foundations may encroa






500mm into the sidewalk if top of foundatleast 600mm below grade

PROJECTIONS INTO THE RRO▪ In all cases, these projections shall not ob

any utilities/services, unless the owner is w

pay for the rerouting of said utilities/servic






BALCONIES






BALCONIES▪ Clearance between sidewalk grade and low

portion of balcony = 3.00m minimum






ARCADES▪ Arcades may be constructed on sidewalks

streets whenever allowed or required by exbuilding and zoning regulations.

▪ Arcades shall be at least 3.00m above theid lk d






sidewalk grade.






DOORS + WINDOWS▪ Unless at least 2.40m above the pavemen

door or window shall project beyond the pline when fully opened or upon opening.






CHAFLANS▪ Every corner building or fence on a public

less than 3.60m wide shall be truncated atcorner to form a chaflan.

▪ The chaflan shall be at least 4.00m wide.






RULE 11Protection of Pedestrians






PROTECTION OF PEDESTRIAN▪ No person shall use or occupy a street or s

for the performance of work except in accwith this rule

▪ No work shall be performed adjacent to a way unless pedestrians are protected as s






way unless pedestrians are protected as sin this rule

STORAGE IN PUBLIC PROPER▪ Shall not obstruct utility provisions (fire hy

fire alarm box, manholes)

▪

Shall not interfere with drainage▪ Shall not interfere with vehicular and pede






traffic

MORTAR MIXING▪ The mixing of mortar or concrete shall not

allowed on public streets.






TEMPORARY WALKWAYS▪ When the Building Official authorizes a sid

to be closed, a temporary walkway at leaswide shall be provided

▪ If the street has no sidewalk, width may bereduced to 600mm






reduced to 600mm.

▪ If RROW is 5.00m wide or less, no tempora

walkways are allowed.





FENCES + CANOPIES▪ When the horizontal distance between the

and the inner edge or the sidewalk is morethe building height, only a 2.40m high fencrequired.

▪ When the horizontal distance between the




When the horizontal distance between theand the inner edge or the sidewalk is equathan ½ the building height, a canopy will bebe required in addition to the fence.

FENCES + CANOPIES▪ For canopies: provide a clear unobstructed

of 2.40m above the walkway






RULE 12General Design Requirements






EXCAVATIONS▪ Excavations must not endanger life or pro

▪ Any person undertaking an excavation sha

ensure that the soil of the adjoining propenot cave in or settle.

▪ Cut slopes shall be no steeper than 2:1






▪ Cut slopes shall be no steeper than 2:1(horizontal:vertical).

OCCUPANT LOAD▪ The maximum number of persons that ma

allowed to occupy a certain room, floor, or

▪

Shall be determined by dividing the floor aassigned to that use by the unit area allowoccupant as shown on Table XII.1.






▪ Floor area/unit area per occupant

OCCUPANT LOAD s

Area/occupant2 exits

if mo

Dwellings 28.00sqm

Hotels, apartments 18.60sqm

Classrooms 1.80sqm






Classrooms 1.80sqm

School shops/labs 4.60sqm

Hospitals 8.40sqm

OCCUPANT LOAD s

Area/occupant2 exits

if mo

Stores – Basement 2.80sqm

Stores – Ground floor 2.80sqm

Stores – Upper floors 5 60sqm






Stores Upper floors 5.60sqm

Stores – Offices 9.30sqm

Auditoriums, theaters,churches

0.65sqm

NUMBER OF EXITS▪ Every building shall have at least one exit

▪ Upper floors with occupant load of more t

shall have at least two exits▪ A mezzanine floor bigger than 185sqm or

more than 18 00m in any dimension shall






more than 18.00m in any dimension shall least two stairways to an adjacent floor

NUMBER OF EXITS▪ Every floor with occupant load of 500-999

have at least 3 exits.

▪

Every floor with occupant load of 1000 or shall have at least 4 exits.






WIDTH OF EXITS▪ Total width of exits = Occupant load/165

▪ Note: This is the total width in meters






ARRANGEMENT OF EXITS▪ If two exits are required, the two exits mus

apart by at least 1/5 of the perimeter of thserved.

▪ If three or more are required, they shall bearranged a reasonable distance apart






DISTANCE TO EXITS▪ If without a sprinkler system, 45.00m max

▪ If with a sprinkler system, 60.00m maximu

▪ Measured from any point in a building, mealong the line of travel






EXITS DOORS▪ When serving an occupant load of 50 or m

must swing in the direction of exit travel

▪

Double acting doors shall not be used as ewhen serving a tributary load of more thanMust be provided with a view panel of not th 1300






than 1300 sq. cm.

TYPE OF LOCKS▪ Exit doors shall be openable from the insid

without the use of a key or any special knoor effort






SIZE OF DOORS▪ Minimum width of doorway: 0.90mm

▪ Minimum height of doorway: 2.00m

▪ Shall be capable of opening at least 90 de

▪ Maximum door leaf width: 1.20m






PROHIBITED DOORS▪ The following shall not be used as exit doo

▪ Revolving doors

▪

Sliding doors▪ Overhead doors






FLOOR LEVEL CHANGE AT DO▪ There shall be a floor or a landing on each sid

exit door

▪ The floor/landing shall not be more than 50mthan the door threshold

▪ Exception: For Group A or B occupancies, a dth t t id d th t th l d






open over the top step provided that the landnot more than 200mm from the floor level an

door does not swing over the top step.

CORRIDORS▪ Minimum width: 1.10m

▪ This width shall be unobstructed, except t

handrails and doors when fully opened shreduce the required with by more than 200

▪ Doors in any position shall not reduce the






ymore than ½.

DEAD ENDS▪ Maximum length: 6.00m






STAIRWAY WIDTHS▪ 1.10m for occupant load more than 50

▪ 0.90m for occupant load of 50 or less

▪ 0.75m for occupant load of less than 10 (p

▪ Handrails shall not reduce the width of staby more than 100mm






by more than 100mm

RISER AND TREAD▪ Maximum riser: 200mm

▪ Minimum tread: 250mm

▪ Note: Always keep in mind that the NBC requiremmaximum for risers, and a minimum for treads






STAIRWAY HEADROOM▪ Not less than 2.00m measured from the n






LANDINGS▪ Length = stairway width

▪ If the stairway has a straight run, landing l

does not need to exceed 1.20m▪ Landing width shall not be reduced by mo

100mm by any door when fully opened






▪ Max. vertical distance between landings:

HANDRAILS▪ Stairways shall have handrails on each sid

▪ If a stairway is more than 3.00m in width,

one intermediate handrail shall be provide▪ Height of handrails: 800-900mm above the

of treads






HANDRAILS▪ Exceptions:

▪ In Group A or B occupancies, stairways 1.10min width serving one individual dwelling may h

handrail only▪ Stairways having less than four risers need no

handrails






BASEMENT STAIRWAYS▪ If a basement stairway and a stairway to a

storey terminate at the same exit enclosurbarrier shall be provided to prevent person

continuing into the basements

▪ Also provide directional exit signs






WINDING STAIRWAYS▪ Allowed as exits as long as the required tre

(250mm) is provided at a point 300mm awfrom the narrow end

▪ However, the tread must not be narrower t150mm at any point






CIRCULAR STAIRWAYS▪ May be used as exits provided that the mi

width of run is not less than 250mm






AISLES▪ Aisles leading to an exit shall be provided f

portions with installed seats, tables, etc.

▪ Shall be at least 0.80m wide if serving onlyside, or 1.00m if serving both sides

▪ This minimum width shall be measured atpoint farthest from the exit and shall be in






point farthest from the exit, and shall be in

by 30mm for every meter in length towardexit

AISLE TRAVEL DISTANCE▪ The line of travel to an exit door by an aisle

not be more than 45.00m

▪ Maximum 7 seats between wall and aisle

▪ Maximum 14 seats between two aisles

▪ Maximum slope: 1 in 8






p

AISLE TRAVEL DISTANCE▪ The number of seats between aisles may

increased to 30 if:

▪ Exit doors are provided along each aisle at the

pair of exit doors for every 5 rows of seats

▪ The back-to-back distance between seats is 1minimum






▪ Minimum clear width of exit doors is 1.70m

FIRE EXTINGUISHING SYSTEM▪ Automatic fire extinguishing systems are r

for the following:

▪ Habitable storeys with an area of 200 sqm or

with an occupant load of more than 20

▪ Dressing rooms, rehearsal rooms, workshopsfactories with occupant load of more than 10






▪ Assembly halls under Group H and I with occu

load of more than 500

DRY STANDPIPES

▪ All buildings 4 or more storeys in height shequipped with one or more dry standpipes

▪ Standpipes shall be located within enclosestairway landings

▪ Siamese connections shall be located on tstreet-front of a building 300mm-1200mm






street-front of a building 300mm-1200mmgrade

WET STANDPIPES

▪ The following shall have wet standpipes:

▪ Group H or I occupancy of any height

▪ Group C occupancy 2 or more storeys in heig

▪ Groups B, D, E F and G 3 or more storeys in he

▪ Group G and E occupancy over 1800 sqm in a

▪ Exemption:






p

▪ Group H buildings without stage whose seatincapacity is less than 500

LOCATIONS OF WET STANDP

▪ All portions of the building are within 6.00nozzle attached to a hose 23.00m in leng(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 auditorium

▪

1 at the rear of the balcony






RULE 13Electrical + Mechanical






REFERRAL CODES

▪ All electrical systems and installations shaconform to the provisions of the PhilippineElectrical Code pursuant to RA 7920 (Elect

Engg. Law)▪ All mechanical systems and installations s

conform to the provisions of the Philippineh l d (






Mechanical Code pursuant to RA 8495 (M

Engg. Law)

CLEARANCE OF SERVICE DRO

▪ 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 side

▪ No service drop conductors or any other w






p yshall pass over swimming pools

ELEVATORS

▪ Hoistway pit: minimum 600mm from undecar to bottom of pit

▪ Maximum four elevators in a single hoistw

▪ Residential buildings 5 storeys or higher shave at least one passenger elevator on 24constant operation






constant operation

ESCALATORS

▪ Maximum inclination: 30° from horizontal

▪ Width between ballustrades: 560mm-120Shall not exceed the width of the step by mthan 330mm

▪ Speed: 38 meters per minute maximum (crule is 90-120 fpm/27.5-36.5mpm)






p / p )

AIR CONDITIONING

▪ Comfortable cooling standards:

▪ Temperature: 20°-24° Celsius

▪ Humidity: 50% - 60%

▪ Air movement: 4.60-7.60 meters per minute






WATER PUMPING

▪ Installation of pumping equipment directlythe public water supply system is prohibite






RULE 14Photo Films + X-ray Films






FILM STORAGE ROOMS

▪ Provide automatic fire extinguishing systethe following:

▪ When unexposed films in shipping containers

14.00 cubic meters▪ When shelving used for storing film exceeds 1

cubic meters in capacity






FILM STORAGE ROOMS

▪ No films shall be stored within 600mm of pipes, chimneys, or other sources of heat






RULE 15Prefabricated Construction






PREFABRICATED ASSEMBLY

▪ A structural unit, the integral parts of whicbeen built-up or assembled prior to incorpin the building

▪ To determine structural adequacy, they shspecial tests conducted by accredited matesting laboratories






RULE 16Plastics






APPROVED PLASTICS

▪ Those which have a flame-spread rating oless

▪ Those with a smoke density not greater th

obtained from the burning of untreated wo

▪ Those whose products of combustion aremore toxic than those of untreated wood






PLASTIC DOORS

▪ Plastic doors are allowed except for entrandoors and exit doors, which should be of mother than plastics






RULE 17Sheet Metal Spraybooths






SPRAY PAINT BOOTHS

▪ Paint spray booths shall be constructed ofless than No. 18 US Gauge in thickness

▪ The area of a spray paint booth shall not e

150sqm

▪ The floor of the booth, if combustible, shacovered with non-combustible material






▪

Shall permit the free passage of exhaust a






RULE 18Glass + Glazing






GENERAL REQUIREMENTS

▪ Applies to all exterior glass/glazing exceptA, B, and J not taller than three storeys

▪ Each glass panel shall bear the manufactu

label designating the type and thickness o







▪ Glass panels with special performancecharacteristics shall bear the manufactureindicating said characteristics

▪ Measures shall be taken to keep persons fwalking into fixed glass panels where the fboth sides of the glass are the same level(guardrails, etching, flower bins)







▪ Glass in large areas along shopping mallscommercial buildings, institutional building






RULE 19Use of Computers







▪ The use of computers for all or any part ofbuilding design is permitted provided that programs to be used are documented






PROGRAM DOCUMENTATION

▪ File with the OBO a reference to a publicataccessible to him where a detailed descripthe program including a description of the

algorithms are found▪ The software name, version number and t

developer and its address shall be providepart of documentation






RULE 20Signs






SIGNS

▪ No sign shall be erected in such a mannerconfuse or obstruct the view or interpretatany official traffic sign/device

▪ Signs in any foreign language shall have atranslation in English or the local dialect






ROOF SIGNS

▪ No signs shall be installed on rooftops ofbuildings of wooden structures or of buildwith wooden roof framing

▪ Provide grounding of metallic parts of roofexposed to lightning






GROUND SIGNS

▪ Shall be located within the property line anno circumstances shall they occupy the R






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 sidewalk

▪ Signs shal not project more than 0.30m






PROJECTING SIGNS

▪ Minimum vertical clearance

▪ Non-arcaded RROW: 3.00m from road surfaclowest part of signs

▪

Arcaded RROW: 5.00m from road surface to lpart of signs






END



PD 1096 (Arch. Pedro Santos Jr.)

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Transcript of PD 1096 (Arch. Pedro Santos Jr.)