Residential and Commercial Townhouses and Rowhouse Manual June 2013 Flashcards
a ___ will allow the officer to determine the location of the fire within the building as well as life hazards, conditions in the rear, and eventually the attached exposures.
pg 1
size-up/360 lap
The term ___ is a generic term used to describe various styles of attached dwellings.
pg 2
townhouse
These can range from old row houses, to modern townhouses, duplexes, quads, piggybacks, over-unders, back-to-backs, and hybrid variations,
Each occupancy has a separate address and its own entrance
___ range from two to four or more floors in height and may be different in height from front to rear (i.e., two floors on the front and three floors on the rear or vice versa) and may or may not have a garage, which can store one or two vehicles.
pg 2
Townhouses
A garage can be on the lowest level in the front or it can be detached in the rear off of a common alley.
___ and ___ are similar to each other in both construction type and firefighting tactics but vary in occupancy type.
pg 2
Commercial and residential townhomes
A ___ is a multi-story dwelling normally attached to several other units. Typically, adjacent occupancies have rated floor and wall assembly separation and most often will have an attic with a pitched roof.
pg 2
townhouse
A ___ is a townhouse consisting of two or more occupancies under one roof connected by the Side Charlie wall.
pg 3
back-to-back
A ___ consists of two stacked dwellings (one over the other), each with a separate address and entrance. These occupancies share a common floor separated by a fire wall on that floor.
pg 4
piggyback townhouse
A ___ is a townhouse consisting of two stacked dwellings (one over the other). These are usually two-level occupancies over one-level occupancies with entrances on opposite sides, but other floor plan variations may exist.
pg 5
over-under
A ___ is a multi-story dwelling attached to at least two other dwellings. These dwellings may or may not be separated by fire walls.
pg 6
rowhouse
Typically a rowhouse will have a common cockloft under a flat roof.
A ___ is two dwellings under one roof sharing a common wall.
pg 7
duplex
A ___ is four dwellings connected together, under one roof, with separate addresses and may have entrances on four different sides.
pg 8
quad
A ___ is a building construction style that can be inclusive of various types of townhouse styles (piggyback, back-to-back, and over-under) under one roof.
pg 9
hybrid
Townhouse construction is typically lightweight frame using the ___ method. Many very old townhouses may have balloon-frame construction.
pg 10
platform frame
___ fire extension in the walls is limited due to the platform frame and fire stopping.
pg 10
Vertical
___ construction is usually found in duplexes and rowhouses.
pg 10
Ordinary
The roof frames are of two basic types:
pg 10
Lightweight – Triangular trusses that rest on the top floor load-bearing and non-load- bearing walls, or parallel chord trusses or plywood I-beams forming the peak from the front and rear load-bearing walls to a ridge pole
Wood Frame – Sawn wood rafters forming the peak from the front and rear load-bearing walls to a ridgepole.
On flat roof townhouses, may be a gypsum roof board that is integrated with fiberglass. These types of boards are often referred to as ___ or ___ boards.
pg 11
Securock or DensDeck
Many townhouses constructed during the ___ have fire retardant (FR) plywood sheathing roof deck. Much of this FR plywood was later determined to be defective due to early decomposition.
pg 11
1980s
Roof styles can include flat or mansard but typically they are ___ and occasionally ___.
pg 11
pitched & gabled
Attics, if present, are usually unfinished and may be used for storage by occupants. Access to this space may be through a scuttle or pull-down stairs located somewhere in the ___, ___ or a ___.
pg 11
top floor ceiling, inside a bathroom or a closet.
Because of interior compartmentalization, crews may work on upper floors in the presence of lightweight truss construction. Working from a ___ or ___ provides greater safety than working from large open areas.
pg 11
hallway or bathroom
Knee walls will be found in units with lofts and dormers and will contain voids or may serve as a storage area. Knee walls may contain ___, and must be opened early to check for fire extension.
pg 11
hidden fire
___ may be covered with brick veneer, wood, aluminum, or vinyl siding over a thin layer of insulating sheathing.
pg 12
Exterior walls
___ are either masonry block or a poured reinforced concrete monolithic (cast-in- place) wall.
pg 12
Foundation walls
___ can be rolled fiberglass, blown-in rock wool, or blown-in cellulose and will be found in attics, exterior walls and, in some structures, the interior walls.
pg 12
Insulation
Depending on when the townhouse was constructed, ___ will be:
- Non-existent.
- Located between each address.
- Located between every other address.
- Between occupied livings spaces and does not extend into the attics or basements.
pg 12
firewalls
___ may be offset at each address to accomplish separating the attic spaces.
pg 13
Rooflines
The most common style of window used in townhouses today is a ___ or ___ type. The glazing may be of single, double, or triple thickness.
pg 13
double-hung, sliding sash
Interior doors are commonly hollow-core wood doors. ___ opening doors are typically found leading to bedrooms and bathrooms. ___ opening doors usually lead to basement stairs or closets.
pg 13
Inward & Outward
In residential townhouses the stairway is ____ .
pg 14
open
Storage under basement stairs is common. These stairs can be unfinished on the underside. A fire originating in this storage area can quickly lead to the collapse of the stairs.
In commercial townhouses the stairwell will be ___.
pg 13
enclosed
A door may or may not be found at the top of the basement stairs. If present, this will slow the spread of fire and its products to upper floors.
Townhouses can be found with fire protection features that could include ___, ____ and ___.
pg 13
- sprinkler systems
- fire department connections
- alarm systems
Fire spread to attached occupancies is likely where occupancies use a ___ (duplexes, quads, piggybacks).
pg 14
common chimney
The interior walls of the garage that are attached to the living space of the townhouse must be ___ including the door, doorframe, and hardware.
pg 14
(fire) rated
The overhead entrance door to the garage and its mounting hardware will not be fire-rated. These types of doors are known to collapse when left open and exposed to fire.
Life safety is our number one priority. Regardless of the time of day, townhouses may have a ___.
pg 15
significant life hazard
Life hazard includes those in attached exposures.
Fire flow estimates will be based on a flow rate of ___ square feet of involved area. Therefore, attack lines should be 1 3⁄4 inches in size.
pg 15
10 gpm per 100
Vinyl and asphalt siding may contribute to ___ and ___ fire spread and can create a severe exposure problem.
pg 15
vertical and horizontal
The presence of interior void spaces may add to fire spread. This is especially crucial in ___ construction.
pg 15
balloon-frame
Fire can spread ___ to adjoining townhouses, even though a firewall is present, by passing through penetrations made in the firewall or by spreading over the firewall.
pg 15
horizontally
Collapse of the roof members (trusses) onto the top floor can occur in an attic fire or second floor fire, where fire has extended to the attic. Much of the collapsed roof assembly may be supported by the top floor, non-bearing walls which will create voids in the top floor. This can provide firefighters operating on the second floor with ___ and continue firefighting and not require an evacuation of the area.
pg 16
an area of safe haven
In ___, the installation of suspended ceilings creates a void space that can spread fire over the heads of attack crews. If this advancing fire condition is not observed the fire can travel past the advancing crew or cause the collapse of the suspended ceiling cutting off their exit.
pg 16
commercial occupancies