{"id":4765,"date":"2025-09-10T14:45:19","date_gmt":"2025-09-10T12:45:19","guid":{"rendered":"https:\/\/products.selit.com\/ratgeber-verlegeunterlagen\/wissens-abc\/sd-value\/"},"modified":"2025-11-18T13:32:00","modified_gmt":"2025-11-18T12:32:00","slug":"sd-value","status":"publish","type":"glossary","link":"https:\/\/products.selit.com\/en\/guide-to-underlays\/knowledge-abc\/sd-value\/","title":{"rendered":"Sd Value"},"content":{"rendered":"<p>\r\r\n<\/p><p class=\"wp-block-paragraph\">The <a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph {&amp;quot;translatedWithWPMLTM&amp;quot;:&amp;quot;1&amp;quot;} --&amp;gt;&amp;amp;#13;The sd value is crucial for moisture protection films. The higher the value, the lower the moisture permeability, and the more effective the film is as a barrier against residual moisture. Please note: For mineral subfloors, moisture protection is mandatory to prevent damage to the floor.  &amp;lt;br\/&amp;gt;&amp;amp;#13;&amp;lt;!-- \/wp:paragraph --&amp;gt;&amp;lt;style&amp;gt;.cmtt-backlink-top, .blog_next_prev_buttons {display:none !important;}.cmtt-backlink-bottom{background: #002962;    background-position-x: 0%;    background-position-y: 0%;    background-repeat: repeat;    background-image: none;    background-size: auto;  width: fit-content;  padding: 3px 10px;    padding-right: 10px;  color: white;  font-size: 16px;  font-family: &amp;#039;MarkProBold&amp;#039;;  background-image: url(&amp;#039;https:\/\/products.selit.com\/wp-content\/uploads\/2025\/09\/SELIT_Pfeil_links_weiss.png&amp;#039;);  background-size: 12%;  background-repeat: no-repeat;  background-position-x: 146px;  padding-right: 42px;  background-position-y: 4px;}.cmtt-backlink-bottom:hover{background: #002962;    background-position-x: 0%;    background-position-y: 0%;    background-repeat: repeat;    background-image: none;    background-size: auto;  width: fit-content;  padding: 3px 10px;    padding-right: 10px;  color: white;  font-size: 16px;  font-family: &amp;#039;MarkProBold&amp;#039;;  background-image: url(&amp;#039;https:\/\/products.selit.com\/wp-content\/uploads\/2025\/09\/SELIT_Pfeil_links_weiss.png&amp;#039;);  background-size: 12%;  background-repeat: no-repeat;  background-position-x: 146px;  padding-right: 42px;  background-position-y: 4px;}&amp;lt;\/style&amp;gt; &amp;lt;script&amp;gt;\/\/ Warten bis das DOM geladen istdocument.addEventListener(&amp;quot;DOMContentLoaded&amp;quot;, function() {  \/\/ Das erste -Element mit der Klasse ausw&auml;hlen  const backlink = document.querySelector(&amp;quot;a.cmtt-backlink-bottom&amp;quot;);    if (backlink) {    \/\/ Den sichtbaren Text &auml;ndern    backlink.textContent = &amp;quot;Back to the ABC&amp;quot;;     }});&amp;lt;\/script&amp;gt;&lt;\/div&gt;\"  href=\"https:\/\/products.selit.com\/en\/guide-to-underlays\/knowledge-abc\/sd-value\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>sd value<\/a> is crucial for moisture protection films. The higher the value, the lower the moisture permeability, and the more effective the film is as a barrier against <a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph {&amp;quot;translatedWithWPMLTM&amp;quot;:&amp;quot;1&amp;quot;} --&amp;gt;&amp;amp;#13;Residual moisture is the amount of unbound water contained in a screed\/concrete. It can be measured in various ways. Common methods include CM measurement, measurement according to the electrical resistance principle, or gravimetric moisture determination. The floor in question is only ready for covering once the limit specified by the floor covering manufacturer has been reached.&amp;lt;br\/&amp;gt;&amp;amp;#13;&amp;lt;!-- \/wp:paragraph --&amp;gt;&amp;lt;style&amp;gt;.cmtt-backlink-top, .blog_next_prev_buttons {display:none !important;}.cmtt-backlink-bottom{background: #002962;    background-position-x: 0%;    background-position-y: 0%;    background-repeat: repeat;    background-image: none;    background-size: auto;  width: fit-content;  padding: 3px 10px;    padding-right: 10px;  color: white;  font-size: 16px;  font-family: &amp;#039;MarkProBold&amp;#039;;  background-image: url(&amp;#039;https:\/\/products.selit.com\/wp-content\/uploads\/2025\/09\/SELIT_Pfeil_links_weiss.png&amp;#039;);  background-size: 12%;  background-repeat: no-repeat;  background-position-x: 146px;  padding-right: 42px;  background-position-y: 4px;}.cmtt-backlink-bottom:hover{background: #002962;    background-position-x: 0%;    background-position-y: 0%;    background-repeat: repeat;    background-image: none;    background-size: auto;  width: fit-content;  padding: 3px 10px;    padding-right: 10px;  color: white;  font-size: 16px;  font-family: &amp;#039;MarkProBold&amp;#039;;  background-image: url(&amp;#039;https:\/\/products.selit.com\/wp-content\/uploads\/2025\/09\/SELIT_Pfeil_links_weiss.png&amp;#039;);  background-size: 12%;  background-repeat: no-repeat;  background-position-x: 146px;  padding-right: 42px;  background-position-y: 4px;}&amp;lt;\/style&amp;gt; &amp;lt;script&amp;gt;\/\/ Warten bis das DOM geladen istdocument.addEventListener(&amp;quot;DOMContentLoaded&amp;quot;, function() {  \/\/ Das erste -Element mit der Klasse ausw&auml;hlen  const backlink = document.querySelector(&amp;quot;a.cmtt-backlink-bottom&amp;quot;);    if (backlink) {    \/\/ Den sichtbaren Text &auml;ndern    backlink.textContent = &amp;quot;Back to the ABC&amp;quot;;     }});&amp;lt;\/script&amp;gt;&lt;\/div&gt;\"  href=\"https:\/\/products.selit.com\/en\/guide-to-underlays\/knowledge-abc\/residual-moisture\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>residual moisture<\/a>. Please note: For mineral subfloors, moisture protection is mandatory to prevent damage to the floor.  <\/p>\r\r\n\r\n\r\n<style>.cmtt-backlink-top, .blog_next_prev_buttons {\r\ndisplay:none !important;}\r\n.cmtt-backlink-bottom{\r\nbackground: #002962;\r\n    background-position-x: 0%;\r\n    background-position-y: 0%;\r\n    background-repeat: repeat;\r\n    background-image: none;\r\n    background-size: auto;\r\n  width: fit-content;\r\n  padding: 3px 10px;\r\n    padding-right: 10px;\r\n  color: white;\r\n  font-size: 16px;\r\n  font-family: 'MarkProBold';\r\n  background-image: url('https:\/\/products.selit.com\/wp-content\/uploads\/2025\/09\/SELIT_Pfeil_links_weiss.png');\r\n  background-size: 12%;\r\n  background-repeat: no-repeat;\r\n  background-position-x: 146px;\r\n  padding-right: 42px;\r\n  background-position-y: 4px;\r\n}\r\n.cmtt-backlink-bottom:hover{\r\nbackground: #002962;\r\n    background-position-x: 0%;\r\n    background-position-y: 0%;\r\n    background-repeat: repeat;\r\n    background-image: none;\r\n    background-size: auto;\r\n  width: fit-content;\r\n  padding: 3px 10px;\r\n    padding-right: 10px;\r\n  color: white;\r\n  font-size: 16px;\r\n  font-family: 'MarkProBold';\r\n  background-image: url('https:\/\/products.selit.com\/wp-content\/uploads\/2025\/09\/SELIT_Pfeil_links_weiss.png');\r\n  background-size: 12%;\r\n  background-repeat: no-repeat;\r\n  background-position-x: 146px;\r\n  padding-right: 42px;\r\n  background-position-y: 4px;\r\n}\r\n<\/style>\r\n <script>\r\n\/\/ Warten bis das DOM geladen ist\r\ndocument.addEventListener(\"DOMContentLoaded\", function() {\r\n  \/\/ Das erste <a>-Element mit der Klasse ausw&#228;hlen\r\n  const backlink = document.querySelector(\"a.cmtt-backlink-bottom\");\r\n  \r\n  if (backlink) {\r\n    \/\/ Den sichtbaren Text &#228;ndern\r\n    backlink.textContent = \"Back to the ABC\";\r\n\r\n   \r\n  }\r\n});\r\n<\/script>","protected":false},"excerpt":{"rendered":"<p>\n The <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph {&amp;quot;translatedWithWPMLTM&amp;quot;:&amp;quot;1&amp;quot;} --&amp;gt;&amp;amp;#13;The sd value is crucial for moisture protection films. The higher the value, the lower the moisture permeability, and the more effective the film is as a barrier against residual moisture. Please note: For mineral subfloors, moisture protection is mandatory to prevent damage to the floor.  &amp;lt;br\/&amp;gt;&amp;amp;#13;&amp;lt;!-- \/wp:paragraph --&amp;gt;&amp;lt;style&amp;gt;.cmtt-backlink-top, .blog_next_prev_buttons {display:none !important;}.cmtt-backlink-bottom{background: #002962;    background-position-x: 0%;    background-position-y: 0%;    background-repeat: repeat;    background-image: none;    background-size: auto;  width: fit-content;  padding: 3px 10px;    padding-right: 10px;  color: white;  font-size: 16px;  font-family: &amp;#039;MarkProBold&amp;#039;;  background-image: url(&amp;#039;https:\/\/products.selit.com\/wp-content\/uploads\/2025\/09\/SELIT_Pfeil_links_weiss.png&amp;#039;);  background-size: 12%;  background-repeat: no-repeat;  background-position-x: 146px;  padding-right: 42px;  background-position-y: 4px;}.cmtt-backlink-bottom:hover{background: #002962;    background-position-x: 0%;    background-position-y: 0%;    background-repeat: repeat;    background-image: none;    background-size: auto;  width: fit-content;  padding: 3px 10px;    padding-right: 10px;  color: white;  font-size: 16px;  font-family: &amp;#039;MarkProBold&amp;#039;;  background-image: url(&amp;#039;https:\/\/products.selit.com\/wp-content\/uploads\/2025\/09\/SELIT_Pfeil_links_weiss.png&amp;#039;);  background-size: 12%;  background-repeat: no-repeat;  background-position-x: 146px;  padding-right: 42px;  background-position-y: 4px;}&amp;lt;\/style&amp;gt; &amp;lt;script&amp;gt;\/\/ Warten bis das DOM geladen istdocument.addEventListener(&amp;quot;DOMContentLoaded&amp;quot;, function() {  \/\/ Das erste -Element mit der Klasse ausw&auml;hlen  const backlink = document.querySelector(&amp;quot;a.cmtt-backlink-bottom&amp;quot;);    if (backlink) {    \/\/ Den sichtbaren Text &auml;ndern    backlink.textContent = &amp;quot;Back to the ABC&amp;quot;;     }});&amp;lt;\/script&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/products.selit.com\/en\/guide-to-underlays\/knowledge-abc\/sd-value\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">sd value<\/a> is crucial for moisture protection films. The higher the value, the lower the moisture permeability, and the more effective the film is as a barrier against&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"menu_order":0,"template":"","meta":{"footnotes":""},"class_list":["post-4765","glossary","type-glossary","status-publish"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/products.selit.com\/en\/wp-json\/wp\/v2\/glossary\/4765","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/products.selit.com\/en\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/products.selit.com\/en\/wp-json\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/products.selit.com\/en\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":4,"href":"https:\/\/products.selit.com\/en\/wp-json\/wp\/v2\/glossary\/4765\/revisions"}],"predecessor-version":[{"id":5007,"href":"https:\/\/products.selit.com\/en\/wp-json\/wp\/v2\/glossary\/4765\/revisions\/5007"}],"wp:attachment":[{"href":"https:\/\/products.selit.com\/en\/wp-json\/wp\/v2\/media?parent=4765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}