objective 4 Flashcards
Types I - V construction
Type I : most fire resistant , up to 3 hrs , noncombustible, can be built for any occupancy
Type III : 1 hr fire rating, combustible
Type V: very combustible, can only be used for buildings under a few thousand sq ft in area or 2 story buildings,
building height and area are limited based on…
construction type & occupancy
what are the most common type of suppression systems ?
sprinklers
Fire protection rated glass must meet what ratings?
NFPA 252 & NFPA 257
Fire protection rated glazing
1/4” wired glass in steel frames
must have a 45 minute rating & is limited to 1 hr rated partitions
What percentage of fire protection rated glass can you use on a common wall
25%
Fire resistance rated glazing
glass or other glazing material that has been tested to ASTM E119
up to 2 hr fire rating
can be used in partitions rated longer than 1 hr
Guard(rails) must be designed to resist a load of…
50lbf/ft applied in any direction
At what height is an open platform required to have a guard(rail)
30” AFF
what does zoning regulate
- what a parcel of land may be used for
- how far the building must be set back from property lines
-how much of the land may be covered with buildings - how large the structures may be and their maximum heights
-how much parking and loading space must be provided
applying for a variance
asking the city/county council for permission to “rezone” your property to accommodate a different use
fire-protection rating
the period of time an opening assembly can confine a fire or maintain its integrity
Tested w NFPA 252, ANSI/UL 10B, ANSI/UL 10C, and NFPA 257
flammable
capable of burning with a flame and subject to easy ignition and rapid flaming combustion
noncombustible
material that will not ignite and burn when subjected to a fire
what are the three parts of egress
exit access, exit, exit discharge
must lead to a public way
public way
any street, allety, or areas unobstructed from the ground to the sky that is no less than 10 ft wide
escape area
exit access
portion of the means of egress that leads to the entrance of an exit
does not provide a protected path of travel
portion of the building where travel distance is measured and regulated
exit
portion of the egress system that provides a protected path of egress between the exit access and exit discharge
fully enclosed and protected
ex. exterior exit door at ground level, exit enclosures for stairs, ramps, etc.
exit discharge
portion of the egress system between the termination of an exit and a public way
typically include areas outside of the exterior walls ; balconies, stairways, etc.
how is occupant load determined for fixed seating without dividing arms
booth seating?
one person/ every 18” of seating length
one person/ every 24”
gross floor areas vs net area
gross:
includes stairs, corridors, toilet rooms, mechanical rooms, closets, and interior partition thicknesses
net:
just the space actually used
how to calculate occupant load
sqft of space / occupant load factor (found in table - net or gross)
common path of egress travel
the portion of the exit access travel distance measured from the most remote point of each space
to
the point where the occupants have separate and distinct access to two exits or exit access doorways and can choose which direction to go
travel distance
(exit access travel distance)
the distance an occupant would have to travel to get from the most remote point of each space along the natural & unobstructed path to the nearest exit
panic hardware
hardware that unlatches a door when pressure is applied against it rather than requiring a turning motion
when does the formal permitting process begin
after the interior designer has completed drawings and specifications
contractor is responsible for submitting said documents to local building department
AHJ
authority having jurisdiction
(local building department)
tend to review and examen plans for approval and issue building permits
what title of the 4 part ADA civil rights law most affects designers
Title III ; Public Accommodations and Commercial Facilities
