QUIZ Flashcards
RULE 1:
General Provisions
The National Building Code shall provide
a framework of minimum standards and
requirements for all buildings to regulate
their location, design, quality of materials,
construction, and use.
Purpose of the Code
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.
Scope of application
All on-site work done from site preparation, excavation, foundation, assembly of all the components and installation of utilities and equipment of buildings/structure
Construction
Any new construction which increases
the height or area of an existing
building/structure
Addition
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.
Alteration
Any physical change made on a building/
structure to increase its value, utility and/
or to improve its aesthetic quality
Renovation
A change in the use or occupancy of a
building/ structure or any portion/s
thereof which has different requirements
Conversion
Remedial work done on any damaged or
deteriorated portion/s of a
building/structure to restore its original
condition
Repair
The systematic dismantling or destruction
of a building/ structure, in whole or in
part
Demolition
A secondary building/ structure located
within the same premises, the use of
which is incidental to that of the main
building/structure
Ancillary building structure
RULE 2:
Administration and
Enforcement
Duties include: – Policy making – Memorandum circulars – Prescribe fees – Appoint building officials in all municipalities
Secretary of the DPWH
• Tasked with the enforcement of the Code in his jurisdiction • Issues, denies, suspends and revokes permits • Undertakes inspection of buildings • Acts on claims
The Building Official
prescribes the fees
The DPWH Secretary
collects the fees
The Building Official
list of fee exemption
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.
(8) offenses in building permit
•Proceeding with work without a permit
• Unauthorized deviations from the
drawings during construction
• 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
• Failure to post Cert. of Occupancy
• Change in type of construction without permit
6 list to considered a dangerous buildings
Structural hazard • Fire hazard • Unsafe electrical wiring • Unsafe mechanical installation • Inadequate sanitation and health facilities • Architectural deficiency
3 Options for dangerous buildings
Repair
• Vacation
• Demolition
RULE 3:
Permits
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
Building permit
When is a building permit required?
Before constructing, altering, repairing,
converting, moving, adding to,
demolishing a building.
(2) Building permit exemptions
- Minor constructions
* Repair works
Minor construction examples
• Minor structures 6 sqm or less detached
from other buildings, for private use only.
(Example: Sheds, poultry houses,
greenhouses)
• Open terraces or patios not exceeding 20
sqm.
• Window grilles
• Garden pools 500mm deep or shallower
• Garden masonry walls not exceeding
1.20m in height
Repairs example
• Not involving structural members • Of non-load bearing partition walls • Not involving addition or alteration • Of doors, windows, floors, fences and walls • Of plumbing fixtures
Bldg. Permit requirements?
• Application forms • If lot is owned, – OCT or TCT – Tax declaration – Current real property tax receipt
• 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
• 15 days from payment of fees
Liability clause
What article states that the engineer or architect who drew up the plans and specs is liable for 15 years from completion of the building should it
collapse due to defects in the plans or the ground?
Article 1723 of the Civil Code
In case the building collapses due to defects in construction or the use of inferior materials, the\_\_\_\_\_\_\_\_\_\_along with the\_\_\_\_\_\_\_\_\_\_\_\_shall be liable.
contractor,construction supervisor
Shall be secured before using or
occupying a building?
Certificate of occupancy
Requirements of Certificate of Occupancy?
– Certificate of completion
– Logbook
– As-built plans and specs
– Building inspection sheet
Expiration of building permits
• Construction does not commence within 1
year from date of issue
• Construction does not resume 120 days
after suspension or abandonment of work
Non-issuance, suspension,
revocation?
- Errors in plans and specs
- Incorrect or inaccurate data declared
- Non-compliance with the Code
Inspection and supervision
• The owner of the building must engage
the services of a licensed architect or civil
engineer to undertake the__________of the construction.
full-time inspection and supervision
RULE 4:
(5) Types of Construction
Type I
• Wood construction
Type II
• Wood construction with fire-resistant
materials
• 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
construction
• Incombustible interiors (ceilings, walls)
Type V
• Four-hour fire resistive throughout
• Structural elements of steel, iron, concrete
or masonry
Rule 5: Areas within which only certain types of construction are allowed, based on their occupancy, type of construction, and resistance to fire
Fire zone
Fire zone designations
– All types of construction allowed?
- Non-fire restricted zones
Fire zone designations
– Type I construction NOT allowed?
- Fire restrictive zones
Fire zone designations
– Types I, II, and III NOT allowed?
- Highly fire restrictive zones
Buildings in multiple fire zones
• Shall be considered as part of the more
restrictive zone if______is in that zone
more than 1/3 of its total
floor area
RULE 6:
Fire Resistive Requirements
• 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)
Fire resistive rating
RULE 7:
Occupancies + Requirements
Occupancies are assigned to________while zones are assigned to____________?
buildings,lands
10 list of Occupancy classifications A B C D E F G H I J
- A – Residential dwellings
- B - Residentials, hotels, apartments
- C - Education and recreation
- D – Institutional
- E – Business and mercantile
- F – Industrial
- G – Storage and hazardous
- H – Assembly other than Group I
- I – Assembly with 1,000 or more occupant load
- J - Accessory
Zoning classifications R C GI I UTS SPE PRE CUL A AI PUD
•R – Residential •C – Commercial • GI – General institutional •I – Industrial • UTS – Utilities, Transportation, Services • SPE - Special • PRE - Park structures, recreation, entertainment • CUL – Cultural •A – Agricultural • AI – Agroindustrial • PUD – Planned unit development
Occupancies
Residential building for single family
occupants?
Residential building for non-leasing
occupants not exceeding 10 persons
A – Residential dwellings
• A-1
• A-2
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.
B: Residentials, hotels, apartments
• Buildings used for school or day-care
purposes not classified in Group H or I
occupancies
C: Education + recreation
Institutions where personal liberties are
restrained (mental hospitals, jails)
D: Institutional
• D-1
Institutions for the care of non-
ambulatory patients and children under
kindergarten age
D: Institutional
D-2
Institutions for ambulatory patients and
homes for children over kindergarten age
D: Institutional
D-3
No work is done except exchange of
parts, maintenance without open flame,
welding, or highly flammable liquids
(gasoline filling station, storage garage)
E: Business + mercantile
• E-1
Wholesale and retail stores, office
buildings, dining establishments
E: Business + mercantile
E-2
Aircraft hangars and open parking
garages (no repair work)
E: Business + mercantile
E-3
• Light industrial • Ice plants, power plants, pumping plants, cold storage, factories and workshops using incombustible and non-explosive materials
F: Industrial
Medium industrial, storage of highly
flammable materials
G: Storage + hazardous
• G-1
Medium industrial, storage of flammable
materials: dry cleaning plants, paint stores, spray-painting rooms
G: Storage + hazardous
G-2
Medium industrial structures where
loose combustible fibers are generated: wood working establishments
G: Storage + hazardous
G-3
Medium industrial for repair garages
and engine manufacturing
G: Storage + hazardous
G-4
Medium industrial for aircraft repair
G: Storage + hazardous
G-5
Assembly buildings with stage for less
than 1,000
H: Assembly for less than 1,000
• H1
Assembly buildings without stage for
300 or more
H: Assembly for less than 1,000
H2
Assembly buildings without stage for
less than 300
H: Assembly for less than 1,000
H3
Recreational/tourism developments
not included in other H classifications
(stadiums, reviewing stands, and
amusement parks)
H: Assembly for less than 1,000
H4
Any assembly building with a stage and
an occupant load of 1,000 or more
I: Assembly for 1,000 or more
Agricultural structures?
J: Accessory
• J1
Carports/garages, fences, towers and
pools
J: Accessory
J2
Stages, courts, tombs, mausoleums,
zoos, and banks
J: Accessory
J3
Zoning classifications
• Low-density residential zone
• Characterized by single-family and single-
detached dwellings
R1
• Medium-density residential zone
• Characterized by low-rise single-attached,
duplex, or multilevel buildings for use as
multiple family dwellings
R2
R2
- Further subclassified into:
- Single attached or duplex, 1-3 floors?
- Low-rise multi-level building, 3-5 floors
– Basic R2
–Maximum R2
• 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
R3
R3
- Further subclassified into:
- Rowhouses 1-3 storeys high?
- Medium-rise multilevel structure 6-12 storeys high?
– Basic R3
– Maximum R3
• Medium to high-density residential zone
• Characterized by low-rise townhouses or
buildings for use as multiple family
dwellings
• Refers to structures on an individual lot
(“townhouse”)
R4
• Very high density residential zone
• Characterized by medium-rise to high-
rise condominiums
R5
- Light commercial
- Neighborhood to community in scale
- Low-rise buildings (1-3 storeys)
- Low-intensity trade/activity
- Example: Small shopping centers
C1
- Medium commercial
- City or municipal in scale
- Medium-rise buildings (3-5 storeys)
- Medium to high intensity trade
- Example: Shopping centers
C2
• Metropolitan commercial • Metropolitan in scale • Medium to high-rise buildings (3-5 storeys) • Very high intensity trade • Example: Large to very large shopping malls
C3
• Community to national level of
institutional use. Low-rise to high-rise.
• Two types: – Education/Recreation
GI
- Light industrial use
- Low-rise but sprawling
- Low-intensity manufacturing
I-1 (Industrial)
- Medium industrial use
- Low-rise but sprawling
- Medium-intensity manufacturing
I-2 (Industrial)
• Utilitarian, functional uses
• Low-rise to medium rise
• Low to high-intensity community support
functions
• Two clusters:
– Transport terminals, intermodals, depots
– Power/water generation/distribution, telcos,
waste management facilities
UTS (Utilities, transpo, services)
- Other vertical facilities not yet mentioned
* Included cemeteries and memorial parks
SPE (Special)
• Low-rise to medium rise • Low to medium intensity recreational functions related to educational uses (parks on campus, other recreational/assembly structures on campus)
PRE (Park structures,
recreation, entertainment)
• Community to national level of use or
occupancy
• Low-rise to medium rise
CUL (Cultural)
• Low to medium rise • Low to high intensity agricultural activity • Includes farms, but also offices and facilities for agricultural research and training
A (Agricultural)
• Low rise • Low to high intensity agroindustrial activity • Includes offices and facilities for agroindustrial education and research
AI (Agroindustrial)
• Land development or redevelopment schemes for a new project which has a CDMP (Comprehensive Development Masterplan) or equivalent • Example: Bonifacio Global City
PUD (Planned unit development)
The building adheres to
the stricter requirements.
– 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
Mixed occupancies
• Rule of thumb:
• Exceptions:
Occupancy separations
– Separation: 1 hour
– Openings: 1 hour
– Separation: 2 hours
– Openings: 2 hours
- One-hour fire resistive
* Two-hour fire resistive
– Walls and wall openings
• Walls: 3 hours fire resistive
• Wall openings: Total width shall not exceed 25% of
wall length. No opening shall be larger than 10
sqm.
– Separation: 4 hours
– Openings: Not allowed
- Three-hour fire resistive
* Four-hour fire resistive
• 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.
Right of way/Access to property
Eaves over required windows shall at least
be 750mm from the side and rear
property lines.
Eaves over windows
A fireproof barrier used to prevent the
spread of fire between or through
buildings
Firewalls
• Why are firewalls important?
Because when they are built, the building or parts of the building extends into the setbacks.
Allowable firewalls Not allowed – 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.
• R1:
– Maximum 80% of the length of side property
line.
• R2: One side only
- Maximum 85% of each side
- Total should not exceed 65% of lot perimeter
- Two storeys high only
- 90% of side or rear (up to 100% for rear if only 4m)
- Total should not exceed 50% of lot perimeter
- Two storeys high for side, 3.20m high for rear
• R3: Two configurations are allowed:
– Option A: Two sides
– Option B: One side + Rear
– Maximum 85% of each side
– Total should not exceed 50% of lot perimeter
– Maximum height: three storeys
• R4: Two sides
- Maximum 75% of each side
- Total should not exceed 50% of lot perimeter
- Maximum height: 8 storeys
- Maximum 65% of side and 50% of rear
- Total should not exceed 60% of lot perimeter
- Maximum height: 8 storeys for side, 14m for rear
• R5: Two configurations allowed:
– Option A: Two sides
– Option B: One side + Rear
- Provide sprinkler system
- Install fire-retardant or fire-suppression devices
- Maximum 70% of lot perimeter
- RROW setbacks are complied with
• Commercial, institutional, and industrial
- The total floor space inside the building
- Keyword: inside/enclosed
- Includes services/parking (unlike GFA)
TGFA
• Total gross floor area
Allowable max. TGFA?
formula
• Format: Number of floors x footprint
(7)Lot types?
- Inside or regular lot
- Through lot
- Corner lot
- Corner-through lot
- Interior lot
- End lot
- Corner lot abutting 3 or more streets etc.
• From established grade line to the topmost portion of the building • Excludes allowed projections above the roof, like: – Signage – Masts – Antenna or telecom tower
BHL
• Building height limit