diff -r b6ff1877cb48 -r bcee7f49b3ea src/pyams_default_theme/features/header/skin/__init__.py
--- a/src/pyams_default_theme/features/header/skin/__init__.py	Mon Nov 26 11:04:35 2018 +0100
+++ b/src/pyams_default_theme/features/header/skin/__init__.py	Mon Nov 26 11:05:06 2018 +0100
@@ -23,6 +23,7 @@
 from pyams_content.features.header.interfaces import IHeaderRenderer, IHeaderRendererSettings, IHeaderSettings, \
     IHeaderTarget
 from pyams_content.features.renderer.interfaces import HIDDEN_RENDERER_NAME
+from pyams_content.root import ISiteRoot
 from pyams_default_theme.features.header import SimpleHeaderRendererSettings
 from pyams_default_theme.features.header.interfaces import ISimpleHeaderRendererSettings
 from pyams_default_theme.features.header.skin.interfaces import IHeaderClass
@@ -30,6 +31,7 @@
 from pyams_portal.interfaces import PREVIEW_MODE
 from pyams_portal.portlet import PORTLETS_CACHE_KEY, PORTLETS_CACHE_NAME, PORTLETS_CACHE_REGION
 from pyams_sequence.interfaces import IInternalReference
+from pyams_sequence.reference import get_reference_target
 from pyams_skin.layer import IPyAMSLayer
 from pyams_template.template import template_config
 from pyams_utils.adapter import adapter_config
@@ -81,7 +83,13 @@
         request = self.request
         return request.registry.queryMultiAdapter((request.context, request), IHeaderClass, default='')
 
+    @property
+    def search_target(self):
+        return get_reference_target(self.settings.search_target, request=self.request)
+
     def render(self):
+        if ISiteRoot.providedBy(self.request.context) and not self.settings.can_apply_on_root:
+            return ''
         preview_mode = self.request.annotations.get(PREVIEW_MODE, False)
         if preview_mode:
             return super(BaseHeaderRenderer, self).render()