<?xml version="1.0" encoding="UTF-8" standalone="no"?><?Xpress productLine="ncc-clause" ?><clause id="_b2bf1d71-e5f7-4ec0-9ec3-84264d6e7263" outputclass="ncc-clause"><meta><facet building="Class 1a"/><facet building="Class 1b"/><facet building="Class 10a"/><facet building="Class 10b"/><facet building="Class 10c"/></meta><sptc>D3D5</sptc><title id="_d422959b-81ca-482f-a450-d4cc59188859">Separation of rising and descending stair flights</title><archive-num>2019: D2.4</archive-num><subclause id="_d5bf05b5-1b52-4ce0-a1f4-ba8aea985513" outputclass="subclause"><title id="_f148bc74-c631-44f4-ad4a-4f055092943b">SubClause</title><num>1</num><p>If a stairway serving as an <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1263_2.3.0.xml#_9712f630-8cf7-401b-b1cc-ae0be4485915" id="_3f3919da-85b5-4c5c-b8f8-ca97ead1dfcc" scope="local" type="abcb-glossentry">exit</xref> is <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1432_4.0.0.xml#_af6fde9f-147d-4782-8b85-42044e80fd42" id="_a95caf88-41d4-4fef-8873-f0da1025248a" scope="local" type="abcb-glossentry">required</xref> to be fire-isolated—</p><ol outputclass="alpha"><li id="_0c574ee0-f48f-4cc8-963a-2e36716e9912">there must be no direct connection between—<ol><li>a <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1307_2.8.0.xml#_448dd81f-b4c5-4c29-9aec-d57b83b33db5" id="_433854e0-8c89-4013-abc9-295a77c6186d" scope="local" type="abcb-glossentry">flight</xref> rising from a <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1483_25.0.0.xml#_53ff3ea1-55e7-4f2a-b2b3-ca445ff64c15" id="_4e29cd0f-bf7a-4230-9dbf-379bad11bf6c" scope="local" type="abcb-glossentry">storey</xref> below the lowest level of access to a road or <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1385_0.4.0.xml#_b4a20ca6-0197-4381-9e50-85c757fa574f" id="_96320c84-8601-47c7-92cb-ce4ac0246cba" scope="local" type="abcb-glossentry">open space</xref>; and</li><li>a <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1307_2.8.0.xml#_448dd81f-b4c5-4c29-9aec-d57b83b33db5" id="_859fa103-f893-4f0f-afb5-da3467b42bb0" scope="local" type="abcb-glossentry">flight</xref> descending from a <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1483_25.0.0.xml#_53ff3ea1-55e7-4f2a-b2b3-ca445ff64c15" id="_c762c5a7-e8c3-4e87-a955-d05a94b77e9f" scope="local" type="abcb-glossentry">storey</xref> above that level; and</li></ol></li><li id="_4dc083a0-1fcb-4c94-a3f2-0f315eb7842b">any construction that separates or is common to the rising and descending <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1307_2.8.0.xml#_448dd81f-b4c5-4c29-9aec-d57b83b33db5" id="_df522f64-5e5b-4177-977e-becb16e5e624" scope="local" type="abcb-glossentry">flights</xref> must be—<ol><li><xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1377_5.3.0.xml#_be8a1d10-4119-4eb0-a014-07a806b104ff" id="_044008c5-4fc8-47df-bc4d-e0f12fd88cd3" scope="local" type="abcb-glossentry">non-combustible</xref>; and</li><li>smoke proof in accordance with <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/559_5.10.0.xml#_8db8c123-e66d-4b9e-b804-b48b06ca3b7c" id="_784bdddf-6188-41de-a6e4-29bb1e55d658" scope="local" type="clause">S11C2</xref>.</li></ol></li></ol></subclause></clause>