Chapter 3- Building Construction Flashcards
Types of building construction
Type V
Woodframe construction
Types of building construction
Type III
Ordinary construction
Types of building construction
Type IV
Heavy timber construction
Similar to type I except that degree of fire resistance is lower – again, primary fire protection concerns is the contents of the building.
Type II
This type of construction features exterior walls and structural members of noncombustible or limited combustible materials.
Type III
The primary concern specific to this construction is the problem of fire and smoke spreading through concealed spaces.
Type III
This type of construction presents almost unlimited potential for fire extension within the building or origin into nearby structures.
Type V
Types of building construction
Type II
Non-combustible or
limited combustible construction
This type of construction is used extensively in old factories, mills, and warehouses.
Type IV
This type of construction is very common in single-family dwellings.
Type V
Structural members made of steel fail at ______.
1000°F
This type of construction is rarely used today, other than occasionally used in churches.
Type IV
________ is typically used in the roofs of buildings where freeway sit above buildings built next to them (i.e. Car over the side)
Reinforced concrete
Two primary types of dangerous building conditions:
1) conditions that contribute to the spread and intensity of the fire
2) conditions that make the building susceptible to collapse
________ is the maximum heat that can be produced if all the combustible materials in a given area burn.
Fire loading
______ & _______ procedures are the most effective defense against fire loading hazards.
Proper inspection and
code enforcement
Collapse zone should be equal to ________the height of the building.
1 1/2 times
The two most’s common and serious building collapse hazards facing firefighters today
Lightweight metal trusses lightweight wood trusses
Experience has shown that lightweight metal or wood trusses will fail after _______of exposure to fire.
5 to 10 minutes
Small metal plates (usually 18 to 22 gauge metal) with prongs that penetrate about 3/4” into the wood
Gusset plates
gang nails
Truss containing buildings exposed to fire conditions for ________should not be entered, and crews should not go onto the roofs.
5 to 10 minutes
Types of building construction
Type I
Fire-resistive construction
The telltale rounded shape of a bowstring truss roof maybe hidden by __________.
Square-end parapets
All trusses are designed to work as an integral unit. Members are in tension and others are in compression.
Tension is on ______
Compression is on ______
Tension- bottom
Compression - bottom
The primary fire hazard in this type of construction is the massive amount of combustible contents presented by the structural timbers in addition to the contents of the building.
Type IV
Proper vertical ventilation is essential for slowing the __________.
Spread of fire
In this construction primary hazards of the contents of the structure.
Type I
