HomeMy WebLinkAboutBasic Building DescriptionGarfield County
108 8th Street
Glenwood Springs, CO 81623
970-945-8212
Project Description: CRMS Remodel Boys Dorm Date: Thursday, 19 Feb 2015
Project Location:
Construction by: Architect: A-4 Olivia Emery Engineer: Doherty
Code Study by:
This code study is based on the 2009 International Building Code by ICC using Plan Analyst software
BASIC BUILDING DESCRIPTION:
Type of Construction = VB
Building has an NFPA13 sprinkler system. System is used for allowable area(506.3) and height(504.2)
BUILDING INTERIOR:
AREAS ON THE 2nd FLOOR
Apartments: Occupancy Group = R2 Actual floor area = 336.0 Allowed area not checked
Number of occupants = 1.7 Based on 200 square feet per occupant. (1004.1.1)
Minimum number of exits = 1 (1015.1)
Minimum exit width =.3 inches. (1005.1)
Common path of egress travel = 10.0 feet (1014.3 and 1015.1)
The maximum length of exit access is 250 feet. (Table 1016.1) Actual travel distance not entered.
Egress doors shall be of the pivoted or side -hinged swinging type. (1008. 1.2)
Egress doors may swing in either direction. (1008.1.2)
Exception 4: Doors within or serving a single dwelling unit.
Exception 5: Revolving doors complying with Section 1008.1.4.1
Exception 6: Horizontal sliding doors complying with Section 1008.1.4.3
Exception 7: Power -operated doors complying with Section 1008.1.4.2
Exits and exit access doors are not required to be marked by an exit sign. (1011.1)
There is no corridor in this area.
Business area: Occupancy Group = B Actual floor area = 4,648.0 Allowed area not checked
Number of occupants = 46.5 Based on 100 square feet per occupant. (1004.1.1)
Minimum number of exits = 1 (1015.1)
Minimum exit width = 9.3 inches. (1005.1)
Common path of egress travel = 79.0 feet (1014.3 and 1015.1)
The maximum length of exit access is 300 feet. (Table 1016.1) Actual travel distance not entered
Egress doors shall be of the pivoted or side -hinged swinging type. (1008.1.2)
Egress doors may swing in either direction. (1008.1.2)
Exception 5: Revolving doors complying with Section 1008.1.4.1
Exception 6: Horizontal sliding doors complying with Section 1008.1.4.3
Exception 7: Power -operated doors complying with Section 1008.1.4.2
Exception 9: Manually operated horizontal sliding doors are permitted from spaces with an occupant
load of 10 or less.
Exits and exit access doors are not required to be marked by an exit sign. (1011.1)
There is no corridor in this area.
2nd FLOOR RESULTS:
Total area of this project on this floor =4,984.0 Allowed area not checked
Number of occupants = 48.2
Minimum number of exits = 2 (Table 1021.1)
Minimum door exit width = 9.6 inches. (1005.1) Minimum stair exit width = 14.4 inches. (1005.1)
Common path of egress travel = 30.0 feet.
The maximum length of exit access travel is 250.0 feet. (Table 1016.1) Actual egress travel = 56.0
Travel distance is ok.
Egress doors may swing in either direction. (1008.1.2)
Exits and exit access doors are not required to be marked by an exit sign. (1011.1)
There is no corridor in this area.
AREAS ON THE 1st FLOOR
Business area: Occupancy Group = B Actual floor area = 4,282.0 Allowed area not checked
Number of occupants = .0 Based on 100 square feet per occupant. (1004.1.1)
Minimum number of exits = 0 (1015.1)
Minimum exit width = .0 inches. (1005.1)
Common path of egress travel = 79.0 feet (1014.3 and 1015.1)
The maximum length of exit access is 300 feet. (Table 1016.1) Actual travel distance not entered
Egress doors shall be of the pivoted or side -hinged swinging type. (1008.1.2)
Egress doors may swing in either direction. (1008.1.2)
Exception 5: Revolving doors complying with Section 1008.1.4.1
Exception 6: Horizontal sliding doors complying with Section 1008.1.4.3
Exception 7: Power -operated doors complying with Section 1008.1.4.2
Exception 9: Manually operated horizontal sliding doors are permitted from spaces with an occupant
load of 10 or less.
Exits and exit access doors are not required to be marked by an exit sign. (1011.1)
There is no corridor in this area.
list FLOOR RESULTS:
Total area of this project on this floor =4,282.0 Allowed area not checked
Number of occupants = .0
Minimum number of exits = 1 (Table 1021.2, d.) Minimum number of exits to maintain exits from floor
above = 2 (1021.1.1) Number of exits provided = 2 Number of exits ok.
Minimum door exit width = .0 inches. (1005.1) Minimum exit width to maintain exit width from floor above
= 14.4 inches. (1005.1) Width of exits provided = 64.0 inches. Width of exits ok.
Common path of egress travel = 79.0 feet.
The maximum length of exit access travel is 300.0 feet. (Table 1016.1) Actual egress travel = 88.0
Travel distance is ok.
Egress doors may swing in either direction. (1008.1.2)
Exits and exit access doors are not required to be marked by an exit sign. (1011.1)
There is no corridor in this area.
Total area of this project in the building = 9,266.0 Allowed area not checked
EXIT WIDTH NOTES
Exit width is in inches and based on Section 1005.1
Width shown for all areas is based on other egress components.
Width shown for 1st floor is based on other egress components.
' Width shown for other floors & basements is based on stairways.
For the minimum width of doors, see Section 1008.1.1.
EGRESS CONTINUITY
�"-The path of egress travel along a means of egress shall not be interrupted by any building element other
than a means of egress component. (1003.6)
EXIT SEPARATION:
In areas where 2 exits are required, the minimum separation is 113 of the maximum diagonal of the area
floor measured in a straight line between exits or exit access doorways. (1015.2.1, Exception 2)
Multiple means of egress shall be sized such that the loss of any one means of egress shall not reduce
the available capacity by more than 50 percent. (1005.1)
MEANS OF EGRESS ILLUMINATION:
1. The means of egress, including the exit discharge, shall be illuminated at all times the building space
` served by the means of egress is occupied. (1006.1)
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2. The means of egress illumination shall not be less than 1 foot-candle at the walking surface level.
(1006.2)
! See section 1006.3 for emergency power requirements.
r`AITIONAL DOORS:
Where additional doors are provided for egress purposes, they shall conform to the requirements in
Section 1008. (1008.1)
LANDINGS AT DOORS:
1. There shall be a floor or landing on each side of a door. (1008.1.5)
2. Such floor or landing shall be at the same elevation on each side of the door. (1008.1.5)
3. The floor or landing shall not be more than 112 inch lower than the threshold. (1008.1.7)
Landings shall have a width not less than the width of the stairway or width of the doorway, whichever
is the greater.
U Where a landing serves an occupant load of 50 or more, doors in any position shall not reduce the
landing dimension to fess than one half of the required width. The minimum length in the direction of exit
travel is 44 inches. (1008.1.6)
5. The space between two doors in series shall be 48 inches plus the width of door swinging into the
space. (1008.1.8)
BOLT LOCKS:
Manually operated flush bolts and surface bolts are not permitted. (1008.1.8.4)
Exception 3: Where a pair of doors serves an occupant load of less than 50, manually operated edge- or
surface -mounted bolts are permitted on the inactive leaf. The inactive leaf shall contain no doorknobs,
panic bars or similar operating hardware.
Exception 4: Manually operated edge- or surface -mounted bolts are permitted on the inactive leaf
provided such inactive leaf is not needed to meet egress width requirements. The inactive leaf shall
contain no doorknobs, panic bars or similar operating hardware.
Exception 2: Where a pair of doors serves a storage or equipment room, manually operated edge- or
surface -mounted bolts are permitted on the inactive leaf.
The unlatching of any door or leaf shall not require more than one operation. (1008.1.9.5)
Exception 2: Where manually operated bolt locks are permitted.
Exception 3: Doors with automatic flush bolts as permitted.
LOCKS AND LATCHES:
Egress doors shall be readily openable from the egress side without the use of a key or any special
knowledge or effort. (1008.1.9)
Locks and latches shall be permitted to prevent operation where any of the following exists: (1008.1.9.3)
2. The main door or doors in Group B, F. M and S areas are permitted to be equipped with key operating
locking devices from the egress side provided:
2.1 The locking device is readily distinguishable as locked.
2.2 A readily visible durable sign is posted on the egress
side stating: THIS DOOR TO REMAIN UNLOCKED WHEN BUILDING IS OCCUPIED
3. Where egress doors are used in pairs, automatic flush bolts shall be permitted to be used, provided
the door leaf having the automatic flush bolts has no doorknob or surface -mounted hardware.
5. Fire doors after the minimum elevated temperature has disabled the unlatching mechanism.
ELEVATOR REQUIREMENTS:
1. An approved pictorial sign of a standardized design shall be posted adjacent to each elevator call
station on all floors instructing occupants to use the exit stairways and not to use the elevators in case
of fire. (3002.3)
Exception 1: Sign not required for elevators that are part of an accessible means of egress complying
with Section 1007.4
Exception 2: Sign not required for elevators that are used for occupant self -evacuation in accordance
with Section 3008.
Elevators shall have a fire resistance rating. (3002.1) 4
Elevator shaft shall have a fire -resistance rating of not less than 1 hoots. (708.4)
Page 3 `
Exception: Exterior walls shall comply with exterior wall requirements. (708.6)
Openings shall be self-closing or automatic closing by smoke detection. (708.7)
Fire door assemblies are required to have a fire -protection rating of 1 112 hour. (715.4)
Penetrations other than those necessary for the purpose of the shaft shall not be permitted. (707.6.1)
Elevators shall be provided with Phase I emergency recall operation and Phase 11 emergency in -car
operation in accordance with ASME A17.1ICSA B44 (3003.2)
Elevator lobby:
An enclosed elevator lobby is not required. (708.14.1)
BUILDING ACCESSIBILITY
1. In addition to accessible entrances required by Sections 1105. 1.1 through 1105.1.6, at least 60
percent of all public entrances shall be accessible. (1105.1)
2. At least one accessible entrance shall be provided to each tenant, dwelling unit and sleeping unit in a
facility. (1105.1.6)
3. Where parking is provided, accessible parking spaces shall be provided in compliance with Table
1106.1 (1106.1)
See additional requirements for outpatient and rehabilitation facilities. (1106.3 and 1106.4)
4. At least one accessible route shall connect each accessible level. (1104.4) See exceptions.
5. Accessible routes shall coincide with or be located in the same area as a general circulation path.
Where the circulation path is interior, the accessible route shall also be interior. (1104.5)
6. On floors where drinking fountains are provided, no fewer than two drinking fountains shall be
provided. One drinking fountain shall comply with the requirements for people who use a wheelchair and
one drinking fountain shall comply with the requirements for standing persons. (1109.5.1)
Exception: A single drinking fountain that complies with both requirements shall be permitted.
Where more than 2 drinking fountains are provided, at least 50% shall be accessible. (1109.5.2)
Exception: Where 50% yields a fraction, the number may be rounded up or down. Total must be equal to
100% or required.
FIRE -RESISTANCE RATING REQUIREMENTS:(Table 601 except as noted)
Exterior walls. Minimum fire resistance rating = FIRE -RESISTANCE RATING FOR EXTERIOR WALLS
above
Primary structural frame may be of any material. Minimum fire resistance rating = 0 hour
Interior bearing wall may be of any material. Minimum fire resistance rating = 0 hour
Interior nonbearing wall may be of any material. Minimum fire resistance rating = 0 hour
Floor/ceiling assembly may be of any material. Minimum fire resistance rating = 0 hour
Roof/ceiling assembly may be of any material. Minimum fire resistance rating = 0 hour
Shaft Enclosure may be of any material. Minimum fire resistance rating = 1 hour
Stairs may be of any material. Minimum fire resistance rating = 0 hour
MARKING AND IDENTIFICATION:
Fire walls, fire barriers, fire partitions, smoke barriers and smoke partitions or any other wall required to
have protected openings or penetrations shall be effectively and permanently identified. (703.6)
Identification shall be located in accessible concealed floor, floor -ceiling or attic spaces;
Be repeated at intervals not exceeding 30 feet; and
Suggested wording: 'FIRE AND/OR SMOKE BARRIER - PROTECT ALL OPENINGS'
Fire Partitions:
The following wall assemblies shall comply. (709.1)
Fire partitions shall have a fire -resistance rating of not less than 1 -hour. (709.3)
See exceptions.
Fire partitions shall extend from the top of the foundation or floor/ceiling assembly below to the
underside of the floor or roof sheathing, slab or deck above or to the fire -resistive -rated floor/ceiling or
roof/ceiling assembly above. (709.4)
The supporting construction shall be protected to afford the required fire -resistance rating of the wall
supported, except for tenant and sleeping unit separation wall and corridor walls.
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See exceptions.
A 1 -hour fire -resistive rating is required for smoke barriers. (710.3)
Smoke barriers shall form an effective membrane continuous from outside wall to outside wall and from
the top of the foundation or floor/ceiling assembly below to the underside of the floor or roof sheathing,
deck or slab above, including continuity through concealed spaces. (710.4)
See Section 710.5 for opening requirements.
PENETRATIONS OF FIRE RESISTIVE ASSEMBLIES:
WALLS ASSEMBLIES:
Through penetrations of walls shall comply Section 713.3.1.1 or 713.3.1.2.
1. Penetrations shall be installed as tested in the fire resistance rated assembly. (713.3.1.1)
2. Penetrations shall be protected by an approved penetration firestop system. (713.3.1.2)
Exception:
Steel, ferrous or copper pipes or steel conduits. See IBC for limitations_
Membrane penetrations of walls:
The requirements are the same as for through penetrations. (713.3.2)
Exceptions:
1. Steel electrical outlet boxes that do not exceed 16 square inches provided that the area of such
openings does not exceed 100 square inches for any 100 square feet of wall area. Boxes on opposite
sides of the assembly shall be separated by a horizontal distance of not less than 24 inches.
2. Listed electrical boxes.
3. Sprinklers with metal escutcheon plates.
FLOOR/CEILING AND ROOF/CEILING ASSEMBLIES:
Through penetrations of floor/ceiling and roof/ceiling assemblies shall comply Section 713.4.1.1 or
713.4.1.2.
1. Through penetrations shall be installed as tested in an approved fire resistance rated assembly.
(713.4.1.1)
2. Penetrations shall be protected by an approved penetration firestop system of not less than 1 hour but
not less than the required rating of the floor penetrated. (713.4.1.2)
Exceptions:
1. Steel, ferrous or copper conduits, pipes, tubes and vents through a single concrete floor. See IBC for
limitations.
2. Electrical outlet boxes that have been tested for use in fire -assemblies.
Membrane penetrations of fire -resistive horizontal assemblies:
The requirements are the same as for through penetrations. (713.4.2)
Exceptions:
1. Steel, ferrous or copper conduits, electrical outlet boxes, pipes, tubes and vents through concrete or
masonry. See IBC for limitations.
2. Electrical outlet boxes that have been tested for use in fire -assemblies.
3. Sprinklers with metal escutcheon plates.
DUCTS AND AIR TRANSFER OPENINGS:
Dampers shall be accessible for inspection and servicing. (716.4)
Where required. (716.5) , Fire walls (716.5.1), Fire barriers (716.5.2), Shaft enclosures (716.5.3), Fire
partitions (715.5.4) and Smoke barriers (715.5.5)
REQUIRED SEPARATION OF OCCUPANCIES: (508.4.4 & Table 508.4)
Uses are not separated by fire barriers. The construction of the building is based on the most restrictive
use. (508.3.3)
Note: Dwelling and sleeping units must be separated from each other per Section 420. (508.3.3,
Exception 2)
SEPARATION OF INCIDENTAL USE AREAS. (Table 508.2.5)
Furnace rooms where any piece of equipment is over 400,000 BTU per hour input = Smoke barrier
(508.2.2.1)
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Rooms with any boiler over 15 psi and 10 horsepower = Smoke barrier (508.2.5.2)
Refrigerant machinery rooms = Smoke barrier (508.2.2.1)
Hydrogen cut-off rooms not classified as Group H = 1 hour
Incinerator rooms = 2 hours and an automatic sprinkler system
Stationary lead -acid battery systems having a liquid capacity of more than 100 gallons used for facility
standby power, emergency power or uninterrupted power supplies. = 1 hour
Rooms containing fire pumps = 1 hour
ROOFING REQUIREMENTS:
1. The roofing on this building is required to be Class C or better. (Table 1505.1)
DRAFTSTOPPING:
Draftstopping is not required in buildings equipped throughout with an automatic sprinkler system in
accordance with NFPA 13. floor =(717.3.3 Exception) and attic = (717.4.3, Exception)
Opening in the partitions shall be protected by self-closing doors with automatic latches constructed as
required for the partitions. (717.4.1.1)
When provided, fire pumps shall be located in rooms that are separated from all other areas by 2 -hour
r fire barrier construction (913 2.1)
i� Exception: Separation by 1 -hour fire barriers is permitted in buildings equipped throughout with an
automatic sprinkler system_
PORTABLE FIRE EXTINGUISHERS:
Portable fire extinguishers are required. (906.1)
Exception: When equipped throughout with quick response sprinklers, portable fire extinguishers shall
be required only in locations specified in Items 2 through 6 in Section 906.1
See Section 906.1 and Table 906.1 for location requirements.
See Section 906.3 for size and distribution requirements.
STANDPIPE AND HOSE SYSTEMS:
Exception: Class I standpipes are allowed in buildings with an automatic sprinkler system.
A standpipe system is not required. (905)
FIRE ALARM AND DETECTION SYSTEMS:
A manual fire alarm system is required. (907.2.2)
Exception: Manual alarm boxes are not required if the notification appliances will activate upon sprinkler
waterflow.
See Section 907.4 for additional information about system.
ACCESSIBLE FACILITIES:
Except as noted, section numbers listed below are from ICC/ANSI A117.1-2003
WATER FOUNTAINS AND WATER COOLERS:
Accessible units must comply with the following:
1. Spout outlets for wheelchair accessible fountains shall be 36 inches maximum above the floor. Spout
outlets for standing persons shall be 38 inches minimum and 43 inches maximum. (602.4)
2. The spout shall be located 15 inches minimum from the vertical support and 5 inches maximum from
the front edge, including bumpers. Where only a parallel approach is provided, the spout shall be located
3 112 inches maximum from the front edge, including bumpers. (602.5)
3. Spouts shall provide a flow of water 4 inches height minimum. (602.6)
TOILET FACILITIES:
1. A 60 inch diameter turning space or T-shaped space is required in the toilet room. (603.2.1 and 304.3)
Doors shall not swing into the clear floor space for any fixture. (603.2.3) See exception for rooms used
for individual use.
2. Water closet shall be mounted adjacent to a side wall or partition. The distance from the side wall or
partition to the centerline of the water closet shall be 16 to 18 in. (604.2)
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3. When the accessible water closet is not in a compartment:
Clearance around the water closet shall be 60 inches minimum, measured perpendicular to the side
wall, and 56 inches minimum, measured perpendicular to the rear wall (604.3. 1)
4. When the accessible water closet is in a compartment:
Wheelchair accessible compartments shall be 60 inches wide minimum measured perpendicular to the
side wall, and 56 inches deep minimum for wall hung water closets and 59 inches deep for floor
mounted water closets, measured perpendicular to the rear wall. (604.8.2)
Compartment doors shall not swing into the minimum required compartment area. (604.8.3)
5. Grab bars shall have a circular cross section with a diameter of 1 114 inch minimum and 2 inches
maximum, or shall provide equivalent graspability. (609.2)
The space between the wall and the grab bar shall be 1 112 inches. (609.3) Grab bars shall be
mounted in a horizontal position 33 inches minimum and 36 inches maximum above the floor. (609.4)
a. Side wall grab bars are required to start within 12 inches of the backwall and extend to 54 inches
from the back wall. The minimum length of the bar is 42 inches. (604.5- 1)
b. The rear bar shall be 24 in long minimum, centered on the water closet. Where space permits, the
bar shall be 36 inches long minimum, with the additional length provided on the transfer side. (604.5.2)
6. The top of the water closet seats shall be 17 to 19 inches above the floor. (604.4)
7. Accessible urinals shall be of the stall type or wall hung with the rim at 17 inches maximum above the
floor. (605.2)
8. Accessible lavatories shall be mounted with the rim 34 inches maximum above the floor. (606.3)
9. Sinks shall be 11 inches deep maximum. (606.5)
10. Water supply and drain pipes under lavatories shall be insulated or otherwise treated to protect
against contact. (606.6)
11. Mirrors located above lavatories, sinks or counters shall be mounted with the bottom edge of the
reflecting surface 40 inches maximum above the floor. (603.3)
LIGHT AND VENTILATION:
1. Every space intended for human occupancy shall be provided with natural light by means of exterior
glazed openings or shall be provided with artificial light. (1205.1)
When natural light is provided, the minimum net glazed area shall not be less than 8% of the floor
area. (1205.2)
Any room is permitted to be considered as a portion of an adjoining room where one half of the area of
the common wall is open and unobstructed and provides not less than one tenth of the floor area or 25
square feet, whichever is greater. (1205.2. 1)
When artificial light is used, it must provide an average illumination of 10 foot candles over the area of
the room at a height of 30 inches above the floor. (1205.3)
2. Buildings shall be provided with natural ventilation or mechanical ventilation per the International
Mechanical Code. (1203.1)
Natural ventilation of an occupied space shall be through windows, doors, louvers or other openings to
the outdoors. (1203.4)
The minimum openable area to the outdoors shall be 4 percent of the floor area. (1203.4. 1)
Any room is permitted to be considered as a portion of an adjoining room where unobstructed
openings are provided that have an area not less than 8% of the floor area of the interior room but no
less than 25 square feet. (1202.3.1.1)
When openings are below grade, clear space measured perpendicular to the opening shall be one and
one half times the depth of the opening. (1203.4.1.2)
3. Rooms containing bathtubs, showers, spas and similar bathing fixtures shall be mechanically
ventilated. (1203.4.2.1)
GLAZING REQUIREMENTS:
All glazing in hazardous cations is required to be of safety glazing material. (2406.1)
Locations: (2406.4)
1. Glazing in swinging doors except jalousies.
2. Glazing in fixed and sliding panels of sliding door assemblies and panels in sliding and bifold closet
door assemblies.
3. Glazing in storm doors.
4. Glazing in all unframed swinging doors.
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5. Glazing in doors and enclosures for hot tubs, whirlpools, saunas, steam rooms, bathtubs and
showers. Glazing in any portion of a building wall enclosing these compartments where the bottom
exposed edge of the glazing is less than 60 inches above a standing surface.
6. Glazing in fixed or operable panels adjacent to a door where the nearest exposed edge of the glazing
is within a 24 -inch arc of either vertical edge of the door in a closed position and where the bottom
exposed edge of the glazing is less than 60 inches above the walking surface.
Exception: Panels where there is an intervening wall or other permanent barrier between the door and
glazing.
7. Glazing in an individual fixed or operable panel, other than those locations described in items 5 and 6
above, which meets all of the following conditions:
7.1 Exposed area of an individual pane greater than 9 square feet.
7.2 Exposed bottom edge less than 18 inches above the floor.
7.3 Exposed top edge greater than 36 inches above the floor.
7.4 One or more walking surfaces within 36 inches horizontally of the plane of the glazing.
See Exceptions.
8. Glazing in guards and railings regardless of the area or height above a walking surface.
9. Glazing in walls and fences enclosing indoor and outdoor swimming pools, hot tubs and spas where
all of the following are present:
9.1 The bottom edges of the glazing on the pool or spa side is less than 60 inches above the walking
surface.
9.2 The glazing is within 60 inches of the water's edge.
10. Glazing adjacent to stairways, landings and ramps within 36 inches horizontally of a walking surface
when the glass is less than 60 inches above the plane of the walking surface.
11. Glazing adjacent to stairways within 60 inches horizontally of the bottom tread of a stairway in any
direction when the exposed glass is less than 60 inches above the nose of the tread.
See Exceptions.
WALL AND CEILING FINISH:
1. Wall and ceiling finish materials are required to comply with Sec. 803.9 and Table 803.9.
2. Textile wall and ceiling coverings shall have Class A flame spread index and shall be protected by
automatic sprinklers or meet the criteria in Section 803.5, 803.6 and 803.1.4.
3. Expanded vinyl wall coverings shall comply with the requirements for textile wall and ceiling materials
(803.7)
4. Toilet room floors shall have a smooth, hard nonabsorbent surface that extends upward onto the walls
at least 4 inches. (1210.1)
5. Walls within 2 feet of urinals and water closets shall have a smooth, hard nonabsorbent surface, to a
height of 4 feet above the floor. (1210.2)
CEILING HEIGHTS:
Occupiable spaces, habitable spaces and corridors shall have a ceiling height of not less than 7 feet 6
inches. Bathrooms, toilet rooms, kitchens, storage rooms and laundry rooms shall be permitted to have
a ceiling height of not less than 7 feet. (1208.2)
INSULATION NOTES:
1. Insulating materials shall have a flame -spread rating of no more than 25 and a smoke developed
index of not more than 450. (719.2)'concealed installation' and Sec. 719.3'exposed installation'
2. Where such materials are installed in concealed spaces, the flame spread and smoke developed
limitations do not apply to facings, coverings and layers of reflective foil that are installed behind and in
substantial contact with the unexposed surface of the ceiling, wall or floor finish. (719.2.1)
Foam plastic insulations are required to be protected. (2603)
CRAWLSPACE REQUIREMENTS:
1. Ventilation openings are required and shall be placed so as to provide cross -ventilation of the under-
floor space. (1203.3)
The minimum area net area of ventilation shall not be less than 1 square foot for each 150 square feet
of crawl space area. (1203.3. 1)
Exception 2: Vent openings may be reduced to 111500 where the ground surface is covered with a
Page 8
Class I vapor retarder material and the required openings are placed so as to provide cross ventilation.
Vents may have operable louvers.
Exception 3: Vents may be omitted when continuously operated mechanical ventilation is provides 1.0
cfm for each 50 square feet of crawl space and the ground surface is covered with a Class I vapor
retarder.
Exception 4: Ventilation openings are not required when the ground surface is covered with a Class I
vapor retarder, the perimeter walls are insulated and the space is conditioned per the IECC.
2. Provide an access opening not less than 18 inches by 24 inches to the crawl space area. (1209.1)
Opening may be required to be larger if mechanical equipment is located in the crawl space. (1209.3)
3. Unless the wood is listed as an approved wood of natural resistance to decay or preservative -treated
wood, the minimum clearance between exposed earth and floor joist is 18 inches. The minimum
clearance to beams and girders is 12 inches. (2304.11.2.1)
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