For buildings and structures in flood hazard areas established in Section 1612.3, any additions that do not constitute substantial improvement of the existing structure, as defined in Section 202, are not required to comply with the flood design requirements for new construction.
For buildings and structures in flood hazard areas established in Section 1612.3, any alterations that do not constitute substantial improvement of the existing structure, as defined in Section 202, are not required to comply with the flood design requirements for new construction.
For buildings and structures in flood hazard areas established in Section 1612.3, any repairs that do not constitute substantial improvement or repair of substantial damage of the existing structure, as defined in Section 202, are not required to comply with the flood design requirements for new construction.
Exception: The accessible features listed in Items 1 through 6 are not required for an accessible route to Type B units.
Exception: Where an alteration includes alterations to an entrance, and the facility has an accessible entrance, the altered entrance is not required to be accessible, unless required by Section 3411.7. Signs complying with Section 1110 shall be provided.
|Steeper than 1:10 but not steeper than 1:8||3 inches|
|Steeper than 1:12 but not steeper than 1:10||6 inches|
Signs complying with Section 1110 shall be provided at the primary entrance and the accessible entrance.
Where the separation between mixed occupancies qualifies for any category indicated in Section 3412.6.16, the score for each occupancy shall apply to each portion of the building based on the occupancy of the space.
|Height value, feet = (AS EBS) × CF||(Equation 34-2)|
|AH||=||Allowable height in feet from Table 503.|
|EBH||=||Existing building height in feet.|
|AS||=||Allowable height in stories from Table 503.|
|EBS||=||Existing building height in stories.|
|CF||=||1 if (AH) – (EBH) is positive.|
|CF||=||Construction-type factor shown in Table |
3412.6.6(2) if (AH) – (EBH) is negative.
Note: Where mixed occupancies are separated and individually evaluated as indicated in Section 3412.6, the values AH, AS, EBH and EBS shall be based on the height of the occupancy being evaluated.
|Aa = [At + (At × If) + (At × Is)]||(Equation 34-3)|
|Aa||=||Allowable building area per story (square feet).|
|At||=||Tabular building area per story in accordance |
with Table 503 (square feet).
|Is||=||Area increase factor due to sprinkler protection as |
calculated in accordance with Section 506.3.
|If||=||Area increase factor due to for frontage as |
calculated in accordance with Section 506.2.
|i||=||Value for an individual separated occupancy on a floor.|
|n||=||Number of separated occupancies on a floor.|
Compartment size equal to or greater than 15,000 square feet
Compartment size of 10,000 square feet
Compartment size of 7,500 square feet
Compartment size of 5,000 square feet
Compartment size of
2,500 square feet or less
|A-4, B, E, S-2||0||5||10||15||20|
|F, M, R, S-1||0||4||10||16||22|
|-2 times number floors connected|
|Less than 1 hour||-1 times number floors connected|
|1 to less than 2 hours||1|
|2 hours or more||2|
|FACTOR||TYPE OF CONSTRUCTION|
- Category a—None.
- Category b—Existing smoke detectors in HVAC systems and maintained in accordance with the International Fire Code.
- Category c—Smoke detectors in HVAC systems. The detectors are installed in accordance with the requirements for new buildings in the International Mechanical Code.
- Category d—Smoke detectors throughout all floor areas other than individual sleeping units, tenant spaces and dwelling units.
- Category e—Smoke detectors installed throughout the floor area.
SMOKE CONTROL VALUES
ELEVATOR CONTROL VALUES
|Less than 25 feet of travel above or below the primary level of elevator access for emergency fire-fighting or rescue personnel||-2||0||0||+2|
|Travel of 25 feet or more above or below the primary level of elevator access for emergency fire-fighting or rescue personnel||-4||NP||0||+4|
- Category a — No elevator.
- Category b—Any elevator without Phase I emergency recall operation and Phase II emergency in-car operation.
- Category c — All elevators with Phase I emergency recall operation and Phase II emergency in-car operation as required by the International Fire Code.
- Category d—All meet Category c; or Category b where permitted to be without Phase I emergency recall operation and Phase II emergency in-car operation; and at least one elevator that complies with new construction requirements serves all occupied floors.
MIXED OCCUPANCY VALUESa
SPRINKLER SYSTEM VALUES
STANDPIPE SYSTEM VALUES
INCIDENTAL USE AREA VALUES
|PROTECTION REQUIRED BY |
|None||1 Hour||AS||AS with SP||1 Hour |
|2 Hours||2 Hours |
|2 Hours and AS||-4||-3||-2||-2||-1||-2||0|
|2 Hours, or 1 Hour and AS||-3||-2||-1||-1||0||0||0|
|1 Hour and AS||-3||-2||-1||-1||0||-1||0|
|1 Hour, or AS with SP||-1||0||-1||0||0||0||0|
|AS with SP||-1||-1||-1||0||0||-1||0|
|1 Hour or AS||-1||0||0||0||0||0||0|
SUMMARY SHEET—BUILDING CODE
|Existing occupancy: _____________________________________||Proposed occupancy: ______________________|
|Year building was constructed: ____________________________||Number of stories: ______ Height in feet: ______|
|Type of construction: ____________________________________||Area per floor:____________________________|
|Percentage of open perimeter increase: ______%|
|Completely suppressed:||Yes ____ No ____||Corridor wall rating: _______________________|
|Compartmentation:||Yes ____ No ____||Required door closers:||Yes ______ No ______|
|Fire-resistance rating of vertical opening enclosures:______________________________________________________|
|Type of HVAC system: ________________________________, serving number of floors: _______________________|
|Automatic fire detection:||Yes _____ No _____||Type and location: ________________________|
|Fire alarm system:||Yes _____ No _____||Type: __________________________________|
|Smoke control:||Yes _____ No _____||Type: __________________________________|
|Adequate exit routes:||Yes _____ No _____||Dead ends: __________||Yes ______ No ______|
|Maximum exit access travel distance: ________________________||Elevator controls:||Yes ______ No ______|
|Means of egress emergency lighting: Yes ______ No ______||Mixed occupancies:||Yes ______ No ______|
|SAFETY PARAMETERS||FIRE SAFETY (FS)||MEANS OF EGRESS (ME)||GENERAL SAFETY (GS)|
|3412.6.1 Building Height |
3412.6.2 Building Area
|3412.6.4 Tenant and Dwelling Unit Separations |
3412.6.5 Corridor Walls
3412.6.6 Vertical Openings
|3412.6.7 HVAC Systems |
3412.6.8 Automatic Fire Detection
3412.6.9 Fire Alarm Systems
|3412.6.10 Smoke Control |
3412.6.11 Means of Egress Capacity
3412.6.12 Dead Ends
|* * * *|
* * * *
* * * *
|3412.6.13 Maximum Exit Access Travel Distance |
3412.6.14 Elevator Control
3412.6.15 Means of Egress Emergency Lighting
|* * * *|
* * * *
|3412.6.16 Mixed Occupancies |
3412.6.17 Automatic Sprinklers
3412.6.19 Incidental Use
|* * * *|
÷ 2 =
|Building score — total value|
MANDATORY SAFETY SCORESa
|OCCUPANCY||FIRE SAFETY (MFS)||MEANS OF EGRESS (MME)||GENERAL SAFETY (MGS)|
MME = Mandatory Means of Egress;
MGS = Mandatory General Safety.
|FS-MFS ≥ 0||_____||(FS)||—||_____ (MFS) =||_____||_____||_____|
|ME-MME ≥ 0||_____||(ME)||—||_____ (MME) =||_____||_____||_____|
|GS-MGS ≥ 0||_____||(GS)||—||_____ (MGS) =||_____||_____||_____|