Essentials of Fire Fighting (4th Edition-FF1)-Chapter 3 ...
Essentials of Firefighting (4th Edition)
Chapter 3-Building Construction
FF 1 Test Review (Statements)
▪ Basic knowledge of building construction allows firefighters to recognize potential dangers and plan for a safe and effective fire attack.
▪ Not all building code classification systems use the same terminology.
▪ Compartmentation in fire-resistive buildings retards fire spread.
▪ Most building codes have 5 classifications of construction types.
▪ Openings in partitions in Type I (fire-resistive) construction can provide pathways for fire spread.
▪ Fire load is the maximum heat that can be produced if all combustible materials in a given area burn.
▪ All fire walls are given a "time" fire rating.
▪ Construction classifications are based on the number of hours of fire protection provided by the structural members and their fire-resistance ratings.
▪ Wood shake roofs are not effective barriers against fire.
▪ Type I construction is known as fire-resistive construction.
▪ Type II construction is known as noncombustible or limited combustible construction.
▪ Type III construction is known as ordinary construction.
▪ Type IV construction is known as heavy timber construction.
▪ Type V construction is known as wood-frame construction.
▪ The primary concern of Type II (noncombustible or limited combustible) construction buildings is the contents of the building.
▪ Built-up roofs of felt, insulation, and roofing tar are of the most concern in Type II (noncombustible or limited combustible) construction.
▪ Fire and smoke spread into concealed spaces is a primary concern for Type III (ordinary) construction.
▪ Fire can burn unnoticed within concealed spaces by consuming materials within that space.
▪ Type III (ordinary) construction hazards can be reduced by placing fire stops in concealed spaces.
▪ Exterior and interior walls of Type IV (heavy-timber) construction are made of noncombustible or limited combustible materials.
▪ Type V (wood-frame) construction presents an almost unlimited potential for fire spread within the building of origin and to exposure buildings.
▪ Examples of Type IV (heavy timber) construction include churches, old factories, and old mills.
▪ The primary fire hazard with Type IV (heavy timber) construction is the massive amounts of combustible structural timbers.
▪ Heavy timber will remain stable for long periods of time under fire conditions but give off tremendous heat.
▪ Type V (wood-frame) construction is characterized by exterior walls, bearing walls, floors, roofs, and supports made completely of wood or other approved materials (smaller than Type IV-Heavy Timber).
▪ Fire coming from doors or windows and extending to the exterior of a structure must be monitored with Type V (wood-frame) construction.
▪ Interior walls may not be able to be distinguished as load-bearing just by looking at them.
▪ A party wall is a load-bearing wall that supports 2 adjacent structures.
▪ The risk of fire spread is considerable when a building is under construction.
▪ Cantilever walls are freestanding walls.
▪ Fire walls divide structures into smaller portions but do not prevent fire spread to other floors (lateral spread only).
▪ It is the responsibility of all personnel to monitor and report unsafe structural conditions.
▪ Large amounts of combustible materials in an area of a building is termed heavy fire loading.
▪ Warehouses often present heavy content loading.
▪ Combustible furnishings and finishes provide potential for rapid fire spread and toxic products of combustion.
▪ Disabled alarm systems may be found in building that are being renovated.
▪ Wood shake shingles are a common problem in wildland/urban interface fires.
▪ Proper vertical ventilation can slow the spread of fire in buildings with large, open spaces.
▪ Heavy content fire loading can be identified/corrected by proper inspection and code enforcement.
▪ Indicators of potential building collapse include: unusual creaking, deteriorated mortar, and cracks or separations in walls, floors, and ceilings.
▪ Collapse zones should be set at 1 1/2 times the height of the building.
▪ Lightweight metal/wood truss systems are likely to fail completely if one member fails.
▪ After 5 to 10 minutes, lightweight metal/wood trusses will fail.
▪ Type V (wood-frame) construction is most commonly used to construct typical single-family residences.
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- doing philosophy 4th edition pdf
- english grammar 4th edition pdf
- sample of chapter 3 methodology
- neuroscience exploring the brain 4th edition pdf
- neuroscience bear 4th edition pdf
- the practice of statistics 4th edition pdf
- statistics 4th edition pdf
- statistics freedman 4th edition pdf
- business statistics 4th edition pdf
- freedman statistics 4th edition answers
- essentials of statistics 4th edition
- essentials of corporate finance 9th edition pdf