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Questions and Answers
What is the fire-resistive rating for Type III Construction?
What is the fire-resistive rating for Type III Construction?
- Three hours
- One hour (correct)
- Two hours
- Four hours
Which type of construction requires a three-hour fire-resistive rating?
Which type of construction requires a three-hour fire-resistive rating?
- Type III
- Type II
- Type V (correct)
- Type IV
What is the maximum allowed smoke density for interior wall and ceiling finishes?
What is the maximum allowed smoke density for interior wall and ceiling finishes?
- Equal to that of untreated wood (correct)
- Higher than that of untreated wood
- Lower than that of untreated wood
- No smoke density limit
What characterizes Non-Fire Restricted Zones?
What characterizes Non-Fire Restricted Zones?
How thick must materials be for the flame-spread characteristic requirements not to apply?
How thick must materials be for the flame-spread characteristic requirements not to apply?
In which zones is at least a two-hour fire-resistivity required for exterior walls?
In which zones is at least a two-hour fire-resistivity required for exterior walls?
What defines a fire zone?
What defines a fire zone?
What is the highest level of fire-resistivity required in Highly Fire Restrictive Zones?
What is the highest level of fire-resistivity required in Highly Fire Restrictive Zones?
In a building located in more than one fire zone, how is it classified?
In a building located in more than one fire zone, how is it classified?
Which types of construction are permitted in Highly Fire Restrictive Zones?
Which types of construction are permitted in Highly Fire Restrictive Zones?
Where are Fire Restrictive Zones most commonly located?
Where are Fire Restrictive Zones most commonly located?
What must be done for buildings moved into a fire zone?
What must be done for buildings moved into a fire zone?
What material must be treated with a flame-retardant to achieve a flame-spread of fifty or less?
What material must be treated with a flame-retardant to achieve a flame-spread of fifty or less?
Which type of construction is characterized by wood construction with protective fire-resistant materials and a one-hour fire resistive rating?
Which type of construction is characterized by wood construction with protective fire-resistant materials and a one-hour fire resistive rating?
What is the primary requirement for the exterior walls of Type III constructions?
What is the primary requirement for the exterior walls of Type III constructions?
Which type of construction requires a four-hour fire-resistive rating for all structural elements?
Which type of construction requires a four-hour fire-resistive rating for all structural elements?
What does Rule IV prohibit regarding changes in constructions?
What does Rule IV prohibit regarding changes in constructions?
In Type IV construction, what materials are specified for walls, ceilings, and permanent partitions?
In Type IV construction, what materials are specified for walls, ceilings, and permanent partitions?
Which construction type allows the use of fire-retardant treated wood in non-bearing partitions?
Which construction type allows the use of fire-retardant treated wood in non-bearing partitions?
For Types II, III, and IV constructions, what is the required fire-resistive rating for interior bearing walls?
For Types II, III, and IV constructions, what is the required fire-resistive rating for interior bearing walls?
Which is NOT a characteristic of Type I construction?
Which is NOT a characteristic of Type I construction?
What must happen to temporary buildings or structures erected in fire zones upon expiration of their permits?
What must happen to temporary buildings or structures erected in fire zones upon expiration of their permits?
Under what condition can existing buildings in fire zones undergo repairs?
Under what condition can existing buildings in fire zones undergo repairs?
What does the Building Official require for temporary structures in highly restrictive zones?
What does the Building Official require for temporary structures in highly restrictive zones?
What restriction applies to existing buildings in fire zones concerning alterations?
What restriction applies to existing buildings in fire zones concerning alterations?
What is a requirement for additions to existing buildings in fire zones?
What is a requirement for additions to existing buildings in fire zones?
What happens to an existing building if it is entirely demolished in a fire zone?
What happens to an existing building if it is entirely demolished in a fire zone?
What is the purpose of designating fire zones by the legislative body of the LGU?
What is the purpose of designating fire zones by the legislative body of the LGU?
When measuring distances for fire safety regulations, where is the reference point taken?
When measuring distances for fire safety regulations, where is the reference point taken?
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Study Notes
Types of Construction
- Type I: Wood construction; structural elements may utilize any materials allowed by the Code.
- Type II: Wood construction with protective fire-resistant materials; one-hour fire-resistive rating throughout, allowing fire-retardant treated wood in non-bearing partitions.
- Type III: Combination of masonry and wood construction; must be one-hour fire-resistive, with incombustible fire-resistive exterior walls.
- Type IV: Constructed with steel, iron, concrete, or masonry; all walls, ceilings, and partitions must be incombustible fire-resistive, with exceptions for fire-retardant treated wood in non-bearing partitions.
- Type V: Requires four-hour fire-resistive rating with structural elements comprised of steel, iron, concrete, or masonry.
Changes in Construction Types
- No alteration of construction type shall occur unless it meets the requirements for the appropriate subtype; changes must be less hazardous to gain approval from the Building Official.
Fire Resistive Requirements
- Types II and III: One-hour fire-resistive rating for exterior walls and interior bearing walls; Types IV and V require four-hour fire-resistive ratings.
- Type V: Interior bearing walls have a three-hour fire-resistive rating; one-hour for vertical openings, floors, and roofs.
- Structural Frames: Type IV requires two-hour fire-resistive rating, while Type V needs a three-hour rating.
- All exterior doors and windows must have a one-hour fire-resistive rating regardless of type.
Interior Finishes and Materials
- Interior wall and ceiling finishes must comply with flame-spread standards; smoke density must not exceed that of untreated wood under testing conditions.
- Exemptions for finishes apply to frames/trim of doors/windows and materials thinner than 1.00 millimeter.
- Flame-proofed materials must be treated for a flame-spread rating of 50 or less.
Fire Zones
- Fire zones limit construction based on use, occupancy, type of construction, and fire resistance.
- Buildings spanning multiple fire zones are classified in the more restrictive zone if over one-third of the area is located there.
Regulations for Moved Buildings
- Any building moved into a fire zone must meet that zone’s requirements, including pre-engineered structures.
Temporary Structures
- Temporary buildings like reviewing stands or construction safety structures may be erected in fire zones under special permits; they must be dismantled after the permit timeframe.
- Building Officials may allow temporarily non-compliant structures if adequate fire safety measures are implemented.
Existing Building Restrictions
- Existing structures in fire zones must not be enlarged or altered unless entirely demolished or moved to compliant zones.
- Repairs up to 20% of the building's value are permitted as long as they do not increase fire hazards.
- Damage repairs from disasters may use the original materials if costs do not exceed 20% of replacement value.
Designation of Fire Zones
- Local Government Units (LGUs) define fire zones to manage fire risk in populated areas.
- Non-Fire Restricted Zones: Minimal fire-resistivity requirements; typically rural.
- Fire Restrictive Zones: Construction requires at least two-hour fire resistance for exterior walls.
- Highly Fire Restrictive Zones: Must utilize three to four-hour fire-resistive materials; only Types IV and V allowed.
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