<?xml version="1.0" encoding="UTF-8" standalone="no"?><table-reference graph="None" id="_00af1266-4ce2-442b-a67f-025fd62f0e5b"><num>J4D7</num><title id="_7c879c2d-3d48-482b-aaaa-0a4b14a9a2c6">Floors – Minimum Total R-Value</title><table id="_377dd1cd-0346-4f14-941a-e33f6fa4175c" keycol="1"><tgroup cols="5"><colspec colname="001" colnum="1" colwidth="56.35*"/><colspec colname="005" colnum="2" colwidth="78.20*"/><colspec colname="004" colnum="3" colwidth="113.65*"/><colspec colname="002" colnum="4" colwidth="78.15*"/><colspec colname="003" colnum="5" colwidth="105.70*"/><thead><row><entry>Location</entry><entry><xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1458_0.16.0.xml#_0d25cef7-0651-40ea-a0e6-3d3db1191e24" id="_d389b5a5-db52-46ef-a600-844a4ebf8058" scope="local" type="abcb-glossentry">Climate zone</xref> 1— upwards heat flow</entry><entry><xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1458_0.16.0.xml#_0d25cef7-0651-40ea-a0e6-3d3db1191e24" id="_86a39157-bbad-41e5-bcb9-2a068c36b261" scope="local" type="abcb-glossentry">Climate zones</xref> 2 and 3 — upwards and downwards heat flow</entry><entry><xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1458_0.16.0.xml#_0d25cef7-0651-40ea-a0e6-3d3db1191e24" id="_3a3fe80f-8cae-4f61-b337-5dc1e7cf6a04" scope="local" type="abcb-glossentry">Climate zones</xref> 4, 5, 6 and 7 — downwards heat flow</entry><entry><xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1458_0.16.0.xml#_0d25cef7-0651-40ea-a0e6-3d3db1191e24" id="_ffcfc191-bba0-4c57-bbf1-8e7c312a1243" scope="local" type="abcb-glossentry">Climate zone</xref> 8 — downwards heat flow</entry></row></thead><tbody><row><entry>A floor without an in-slab heating or cooling system</entry><entry>2.0</entry><entry>2.0</entry><entry>2.0</entry><entry>3.5</entry></row><row><entry>A floor with an in-slab heating or cooling system</entry><entry>3.25</entry><entry>3.25</entry><entry>3.25</entry><entry>4.75</entry></row></tbody></tgroup></table><desc-note id="_157216a3-35ec-48a1-81d4-7410d6d63183"><p>For the purpose of calculating the <xref xmlns:inv="urn:xpressauthor:xpressdocument" format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1490_25.4.0.xml#_bf26e61b-dbc1-4c09-b8be-ac8d936c0ac9" id="_4c68446d-ef12-43c2-aa05-801e501eda0b" inv:access="external" scope="local" type="abcb-glossentry">Total R-Value</xref> of a floor, the sub-floor and soil <xref xmlns:inv="urn:xpressauthor:xpressdocument" format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1420_0.4.0.xml#_e5acb40f-3d3d-4a3d-8987-f09f7eaadf77" id="_08d17e84-005e-46bf-9a0b-ff5223bdc4ca" inv:access="external" scope="local" type="abcb-glossentry">R-Value</xref> must be calculated in accordance with <xref xmlns:inv="urn:xpressauthor:xpressdocument" format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/213_0.6.0.xml#_19890a87-d7b5-4a43-970b-da9c76f2caff" id="_f664bf1a-8459-417f-8c48-068ca20e4b8e" inv:access="external" referencetype="Text" scope="local" synctargettext="false" type="specification">Specification 39</xref> or Section 3.5 of CIBSE Guide A.</p></desc-note></table-reference>