Building Construction Ch. 11 Questions and Answers
Roofs function as the primary ........ ** Answ** sheltering element for the interior of a
building.
The waterproof nature of roofs tends to limit...... ** Answ** the penetration of streams from
ladder pipes and platforms. If collapses, forms a waterproof cover over fire
There are several fundamental safety points that must always be kept in mind regarding roofs:
** Answ** 1. not as strong as floors, lighter live loads
2. have inherent concealed spaces between ceiling and roof deck, hard to determine extent of fire
overhead
3. loads may be added
4. subject to wear and deterioration
Roofs of buildings can be classified into three styles: ** Answ** flat, pitched and curved
Many flat roofs are provided with a slight slope, typically from ...... ** Answ** front to rear,
in large buildings- drains in the center
A pitched roof is designed to ............. ** Answ** shed water and snow
The pitch of a roof presents a major hazard to firefighters because the .............. ** Answ**
steepness of the roof results in lack of secure footing.
Pitched roofs may be categorized into with the following slopes: ** Answ** low- 3 to 12=
up 3 for 12 horizontal
medium - 4/12
high slopes- 12/12
,A slope of 12/12 equates to ..... ** Answ** 45* angle
Some structures, such as certain churches and mansions, have roofs with a slope of 18/12 or
greater. That is ...... ** Answ** too steep to work from a roof ladder
Roofs are designed in a number of styles that are determined by ......, ......., and ....... **
Answ** climate, function, and aesthetic considerations
The simples pitched roof is the ....... ** Answ** shed roof- slopes in only one direction
...... is a very common roof style that consists of two inclined surfaces that meet at their high side
to form a ridge. ** Answ** Gable roof
....... slopes in four directions and has a degree of slope similar to gable. ** Answ** Hip
roofs
....... slope in two directions, but there will be a break in the slope on each side. ** Answ**
Gambrel
........ are functional because the space created by the roof can be used as an attic or living space.
** Answ** Gambrel
........ has the break in the slope of the roof on all four sides ** Answ** Mansard
A mansard roof can be constructed with a flat deck, in which case it is known as a ........ **
Answ** modern mansard or deck roof
The ........ roof forms a projection beyond the building wall that creates a concealed space
through which fire can communicate. Collapse hazard. ** Answ** Mansard
, ............ is a roof style that slopes in two directions, two sheds meet at their low eaves. **
Answ** butterfly roof
..........roof is designed to provide light and ventilation. ** Answ** Monitor roof
A raised central section of the roof extends several feet above the surrounding roof surface.
Known as........ ** Answ** Monitor roof
The vertical sides of this monitor section, which are normally opening windows, are known
as ..... ** Answ** clerestories
Once commonly used on industrial buildings for light and ventilation. The glass should face
north on this roof.......... ** Answ** sawtooth
Curved roof surfaces take their form from........ ** Answ** the structural system used to
support them
Curved roofs are most frequently supported by............... and ........... ** Answ** arches and
bowstring trusses
.......... can be thought of as an arch rotated 360*. ** Answ** Dome
The ........... is a special form of arched roof, constructed from short pieces of wood known
as ........ ** Answ** Lamella arch
Lamellas
Lamellas vary from ...... to ....... in lengths carrying from ...... to ........ ** Answ** 2x8 to
3x16"
8 to 14 ft
Roofs function as the primary ........ ** Answ** sheltering element for the interior of a
building.
The waterproof nature of roofs tends to limit...... ** Answ** the penetration of streams from
ladder pipes and platforms. If collapses, forms a waterproof cover over fire
There are several fundamental safety points that must always be kept in mind regarding roofs:
** Answ** 1. not as strong as floors, lighter live loads
2. have inherent concealed spaces between ceiling and roof deck, hard to determine extent of fire
overhead
3. loads may be added
4. subject to wear and deterioration
Roofs of buildings can be classified into three styles: ** Answ** flat, pitched and curved
Many flat roofs are provided with a slight slope, typically from ...... ** Answ** front to rear,
in large buildings- drains in the center
A pitched roof is designed to ............. ** Answ** shed water and snow
The pitch of a roof presents a major hazard to firefighters because the .............. ** Answ**
steepness of the roof results in lack of secure footing.
Pitched roofs may be categorized into with the following slopes: ** Answ** low- 3 to 12=
up 3 for 12 horizontal
medium - 4/12
high slopes- 12/12
,A slope of 12/12 equates to ..... ** Answ** 45* angle
Some structures, such as certain churches and mansions, have roofs with a slope of 18/12 or
greater. That is ...... ** Answ** too steep to work from a roof ladder
Roofs are designed in a number of styles that are determined by ......, ......., and ....... **
Answ** climate, function, and aesthetic considerations
The simples pitched roof is the ....... ** Answ** shed roof- slopes in only one direction
...... is a very common roof style that consists of two inclined surfaces that meet at their high side
to form a ridge. ** Answ** Gable roof
....... slopes in four directions and has a degree of slope similar to gable. ** Answ** Hip
roofs
....... slope in two directions, but there will be a break in the slope on each side. ** Answ**
Gambrel
........ are functional because the space created by the roof can be used as an attic or living space.
** Answ** Gambrel
........ has the break in the slope of the roof on all four sides ** Answ** Mansard
A mansard roof can be constructed with a flat deck, in which case it is known as a ........ **
Answ** modern mansard or deck roof
The ........ roof forms a projection beyond the building wall that creates a concealed space
through which fire can communicate. Collapse hazard. ** Answ** Mansard
, ............ is a roof style that slopes in two directions, two sheds meet at their low eaves. **
Answ** butterfly roof
..........roof is designed to provide light and ventilation. ** Answ** Monitor roof
A raised central section of the roof extends several feet above the surrounding roof surface.
Known as........ ** Answ** Monitor roof
The vertical sides of this monitor section, which are normally opening windows, are known
as ..... ** Answ** clerestories
Once commonly used on industrial buildings for light and ventilation. The glass should face
north on this roof.......... ** Answ** sawtooth
Curved roof surfaces take their form from........ ** Answ** the structural system used to
support them
Curved roofs are most frequently supported by............... and ........... ** Answ** arches and
bowstring trusses
.......... can be thought of as an arch rotated 360*. ** Answ** Dome
The ........... is a special form of arched roof, constructed from short pieces of wood known
as ........ ** Answ** Lamella arch
Lamellas
Lamellas vary from ...... to ....... in lengths carrying from ...... to ........ ** Answ** 2x8 to
3x16"
8 to 14 ft
