In alterations and additions, where an escalator or stair is provided where none existed previously and major structural modifications are necessary for the installation, an...
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11B-206.2.3.1 Stairs and escalators in existing buildings
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Access to Approach, Enter, and Exit Work Areas
Access for “approach, entry, and exit” requires a connecting accessible route to the work area and a compliant entrance, including entry doors or gates, plus wheelchair space in the work...
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1009.7.4 Stairways
Stairways that are part of the means of egress for the exterior area for assisted rescue shall provide a clear width of 48 inches (1220 mm) between handrails....
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1009.7.4 Stairways
Stairways that are part of the means of egress for the exterior area for assisted rescue shall provide a minimum clear width of 48 inches (1220 mm) between handrails....
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11B-207.1 General
Doors that provide access only to interior or exterior stairways shall not be required to comply with Section 11B-404....
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1007.2 Continuity and components
1007.2 Continuity and components. Each required accessible means of egress shall be continuous to a public way and shall consist of one or more of the following components:
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1009.2 Continuity and components
Each required accessible means of egress shall be continuous to a public way and shall consist of one or more of the following components:
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1011.4, Item 2.2
2.2 “EXIT RAMP DOWN”...
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1011.4, Item 2.4
2.4 “EXIT RAMP UP”...
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1013.4, Item 2.2
“EXIT RAMP DOWN”...
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1013.4, Item 2.4
“EXIT RAMP UP”...
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4.1.3(8)(a)(ii)
(ii) Accessible entrances must be provided in a number at least equivalent to the number of exits required by the applicable building/fire codes....
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1009.2.1 Elevators required
In buildings where a required accessible floor or occupied roof is four or more stories above or below a level of exit discharge, not less than one required accessible means of egress shall...
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Is there a minimum number of risers a stairway must have for it to be covered?
No, the Standards apply to any stairs that are part of a means of egress regardless of the number of risers.
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STAIR
STAIR. A change in elevation, consisting of one or more risers.
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STAIR
A change in elevation, consisting of one or more risers.
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STAIR
A change in elevation, consisting of one or more risers.
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SECTION 1013 EXIT SIGNS
[See subsections ...]
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SECTION 1013 EXIT SIGNS
[See subsections ...]
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1007.7.1 Level of exit discharge
1007.7.1 Level of exit discharge. ...
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11B-504.4.1 Contrasting stripe
Interior stairs shall have the upper approach and lower tread marked by a stripe providing clear visual contrast. Exterior stairs shall have the upper approach and all treads marked...
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1011.5.2 Riser height and tread depth
... Exceptions: 4. ... [DSA-AC] For applications listed in Section 1.9.1 regulated by the Division of the State Architect-Access Compliance, see Chapter 11B, Section...
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11B-504.3 Open risers
Exceptions: On exterior stairways, an opening of not more than ½ inch (12.7 mm) may be permitted between the base of the riser and the tread....