Canyon Area Public Library
Canyon,
Building Code Analysis
A. Occupancy Classification
Floor Area (net interior exclusive of outside wall)
1. Library Area 10,577s.f. (11,410 s.f.)
(includes children’s reading court)
Occupant Load
1. (tbl 10-a) Conference Room 15s.f./person gained 204 s.f.
Classroom (activities rm) 15s.f./person
Library Stacks 100s.f./person gained 420 s.f.
Office 100s.f./person
Storage and Stock rms 300s.f./person
Others 100s.f /person friends gained 165
kitchen 22 s.f.
(252 /15=16.8) + (718 /20=47.8) + (5,894 /100=58.9)
+ (129 /100=1.29) + (1382 /300=4.6) + (705 /100=7.05)
= 136.44 occupants (gained 19= 156 occupants)
Occupancy Group
1. (304.1) Group B
Shall include buildings, structures, or portions thereof, for office, professional or service-type transactions, which are not classified as Group H Occupancies.
B. Type of Construction
1. (tbl 5-b) Type II-N
2. (tbl 6-a) Exterior bearing walls = N
Interior bearing walls = N
Exterior non-bearing walls = N
Structural frame = N
Permanent partitions = N
Floors and floor ceilings = N
Roofs and roof ceilings = N
(tbl 5-a) Exterior windows and doors = 1 hour non-combustible
Less than 20’ non-rated
C. Allowable Floor Areas
1. (tbl 5-b) 12,000s.f.
2. ( 505.1.2) Separation on three sides is permitted with a maximum of
100% increase in floor area. (can increase to 24,000s.f.)
D. Location on Property
1. (503.1) Center line of adjoining public way shall be considered an
adjacent property line.
15th street 41’
16th street 138’
alley 18.5’
E. Height and Number of Stories
1. (tbl 5-b) 2 stories maximum
A. Access and Means of Egress Facilities
1. (304.4) Means of egress shall be provided as specified in Chapter 10.
B. Light Ventilation and Sanitation
1. (304.5) Light, ventilation and sanitation shall be in accordance with
chapters 12 and 29 and this section.
D. Ventilation of Flammable Vapors
1. (304.5.1) See section 1202.2.2 for ventilation of flammable vapors.
E. Sanitation
1. (304.5.2) The number of plumbing fixtures shall not be less than
specified in section 2902.3.
2. (UPC 2000 tbl 4-1)
Office or
68/78 Males 68/78 Females (Occupant load: 136/156)
1 W.C. 4 W.C.
1 Urinal O.K.
1 Lav 1 Lav
F. Exit Enclosures
1. (304.6) Exits shall be enclosed as specified in chapter 10.
A. Chapter 6 Classification of Building and General Requirements
1. (601.4) The structural frame shall be considered to be the columns
and the girders, beams, trusses, and spandrels having direct
connections to the columns and bracing members designed to
carry gravity loads.
2. (601.5.2.1) Interior nonload-bearing partitions may be constructed of :
noncombustible materials, fire-retardant-treated wood,
1 hour fire resistive construction, or wood panels ¾ the height
of the room (if taller, the upper ¼ of the partition should be
constructed of glass).
3. (603.1) The structural elements, floor construction, and permanent walls and partitions of Type II-N building shall be of
noncombustible materials. Wood surfaces or finishes may
be applied in floor construction provided that they are applied
over noncombustible material.
4. (603.2) Structural framework shall be as specified in chapter 22 for
iron and steel, chapter 19 for concrete, and chapter 21 for
masonary.
5. (603.5) Roofs shall be of noncombustible construction.
A. Chapter 10 Means of Egress
1. The occupant
load of this building is 136/156
2. (1003.2.2.2.2) For areas without fixed seats, the occupant
load shall not be less than the number determined
by dividing the floor area under consideration by the
occupant load factor assigned to the use for such area
as set forth in table 10-A.
3. (1003.2.3.2) Minimum exit width: 136/156 occupants x .2 = 27.2”/31.2"
4. (1003.2.8.2) Exit signs shall be located as necessary to clearly indicate the direction of egress travel. Exceptions:
1. Main exterior exit doors that obviously and clearly are identifiable as exit doors need not have exit signs when approved by the building official.
2. Rooms or areas that require only one exit.
5. (1003.2.8.4) Exit signs shall be internally or externally illuminated. When the face of an exit sign is illuminated from an external source, it shall have an intensity of not less than 5 foot candles (54 lx) from either two electric lamps. Internally illuminated signs shall provide equivalent luminance and be listed for the purpose.
6. (1003.9.1) Anytime a building is occupied, the means of egress shall be illuminated at an intensity of not less than one foot candle.
7. (1003.2.10) Means of egress, which provide access to, or egress
from, buildings for persons with disabilities, shall also
comply with the requirements of chapter 11.
8. (1003.3.1.1) “exit door” shall mean all of those doors or doorways along the path of exit travel anywhere in a means of egress system.
9. (1003.3.1.3) Exit doors shall be at least 3’ x 6’-8”. When opened,
there shall be a clear width of at least 32”.
10. (1003.3.1.5) Exit doors shall swing in the direction of the path of exit travel. The door shall swing to the fully open position when an opening force not to exceed 30 lbs.
is applied to the latch side.
11. (1003.3.1.6) There shall be a floor or a landing on each side of the
door. Where access for the disabled is required, the floor or landing shall not be more than a ½” lower than the threshold. Where disabled access is not required, the floor or landing should not be lower than an 1” of the threshold. Landings shall be level except that exterior landings may have an incline not to exceed 2% (1/4:12)
12. (1003.3.1.7) Landings shall not have a width not less than the width
of the door.
13. (1003.3.1.8) Exit doors shall be openable from the inside without the use of a key or any special knowledge or effort.
14. (1004.2.2) Access to exits may occur through foyers, lobbies and reception rooms. Where access to only one exit is required, from a space the exit access may occur through an adjoining or intervening room, which in turn provides direct access to an exit or to a corridor that provides direct access to an exit.
15. (1004.2.3.2) Building shall be provided a minimum of two exits to accommodate egress from stacks and reading room. Occupant loads in other spaces require only one exit. (tbl 10-A).
16. (1004.2.4) Separation of exits for two exits: more than ½ the diagonal distance of the space served.
17. (1004.2.5.2.1) In buildings not equipped with an automatic sprinkler system throughout, the travel distance shall not exceed 200 feet.
18. (1004.2.6) The exit access shall be arranged such that there are no dead-ends in hallways and corridors more than 20’ in length.
19. (1004.3.2.2) In areas serving employees only, the minimum aisle width shall be 24”; in public areas 36” where furnishings are placed on only one side of the aisle, 44” where both sides of the aisle are furnished.
20. (1004.3.4.3.2.1) All exit-access doorways and doorways from unoccupied areas to a corridor shall be protected by tight-fitting smoke and draft control assemblies having a fire protection rating of not less than 20 minutes.
21. (1005.3.2.3) Exterior exit doors shall lead directly to the exit discharge or the public way.
22. (1006.1) Grade level areas designated, as an exit discharge component for a building shall be permanently maintained. Such areas shall not be developed or otherwise altered in their capacity to provide for a continuous unobstructed and undiminished means of egress for building occupants.
23. (1006.2.2) The exit discharge shall be at grade or shall provide direct access to grade.