diff --git a/src/Orchard.Azure/Orchard.Azure.Web/Config/Sites.config b/src/Orchard.Azure/Orchard.Azure.Web/Config/Sites.config
new file mode 100644
index 000000000..a9b061b5c
--- /dev/null
+++ b/src/Orchard.Azure/Orchard.Azure.Web/Config/Sites.config
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+
+	<configSections>
+		<section name="autofac" type="Autofac.Configuration.SectionHandler, Autofac.Configuration"/>
+	</configSections>
+
+	<autofac defaultAssembly="Orchard.Framework">
+    
+    <!-- 
+      To create tenant specific configurations, copy this file to ~/Congig/Sites.{tenant}.config 
+      where {tenant} is the technical name of the targetted tenant
+    -->
+    <components>
+      <!-- 
+        Uncomment to use ReadUncommitted as the default isolation level. Please not that
+        Sql Server Ce doesn't support ReadUncommitted.
+      -->
+      <!--
+      <component instance-scope="per-lifetime-scope"
+                   type="Orchard.Data.SessionLocator, Orchard.Framework"
+                   service="Orchard.Data.ISessionLocator">
+        <properties>
+          <property name="IsolationLevel" value="ReadUncommitted" />
+        </properties>
+      </component>
+      -->
+    </components>
+	</autofac>
+
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Azure/Orchard.Azure.Web/Orchard.Azure.Web.csproj b/src/Orchard.Azure/Orchard.Azure.Web/Orchard.Azure.Web.csproj
index 3bcbf6d32..67bb7053c 100644
--- a/src/Orchard.Azure/Orchard.Azure.Web/Orchard.Azure.Web.csproj
+++ b/src/Orchard.Azure/Orchard.Azure.Web/Orchard.Azure.Web.csproj
@@ -209,6 +209,7 @@
     </Content>
   </ItemGroup>
   <ItemGroup>
+    <Content Include="Config\Sites.config" />
     <None Include="Web.Debug.config">
       <DependentUpon>Web.config</DependentUpon>
     </None>
diff --git a/src/Orchard.Web/Config/Sites.config b/src/Orchard.Web/Config/Sites.config
new file mode 100644
index 000000000..a9b061b5c
--- /dev/null
+++ b/src/Orchard.Web/Config/Sites.config
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+
+	<configSections>
+		<section name="autofac" type="Autofac.Configuration.SectionHandler, Autofac.Configuration"/>
+	</configSections>
+
+	<autofac defaultAssembly="Orchard.Framework">
+    
+    <!-- 
+      To create tenant specific configurations, copy this file to ~/Congig/Sites.{tenant}.config 
+      where {tenant} is the technical name of the targetted tenant
+    -->
+    <components>
+      <!-- 
+        Uncomment to use ReadUncommitted as the default isolation level. Please not that
+        Sql Server Ce doesn't support ReadUncommitted.
+      -->
+      <!--
+      <component instance-scope="per-lifetime-scope"
+                   type="Orchard.Data.SessionLocator, Orchard.Framework"
+                   service="Orchard.Data.ISessionLocator">
+        <properties>
+          <property name="IsolationLevel" value="ReadUncommitted" />
+        </properties>
+      </component>
+      -->
+    </components>
+	</autofac>
+
+</configuration>
\ No newline at end of file
diff --git a/src/Orchard.Web/Orchard.Web.csproj b/src/Orchard.Web/Orchard.Web.csproj
index 9673292ec..0ff72fb9e 100644
--- a/src/Orchard.Web/Orchard.Web.csproj
+++ b/src/Orchard.Web/Orchard.Web.csproj
@@ -157,6 +157,7 @@
     <Content Include="Config\Host.config" />
   </ItemGroup>
   <ItemGroup>
+    <Content Include="Config\Sites.config" />
     <None Include="Web.Debug.config">
       <DependentUpon>Web.config</DependentUpon>
     </None>
diff --git a/src/Orchard/Data/SessionLocator.cs b/src/Orchard/Data/SessionLocator.cs
index c6c9edae4..edbb8212e 100644
--- a/src/Orchard/Data/SessionLocator.cs
+++ b/src/Orchard/Data/SessionLocator.cs
@@ -24,9 +24,11 @@ namespace Orchard.Data {
             _sessionFactoryHolder = sessionFactoryHolder;
             _interceptors = interceptors;
             Logger = NullLogger.Instance;
+            IsolationLevel = IsolationLevel.ReadCommitted;
         }
 
         public ILogger Logger { get; set; }
+        public IsolationLevel IsolationLevel { get; set; }
 
         public ISession For(Type entityType) {
             Logger.Debug("Acquiring session for {0}", entityType);
@@ -41,12 +43,12 @@ namespace Orchard.Data {
 
             if (_transaction == null) {
                 Logger.Debug("Creating transaction on Demand");
-                _transaction = _session.BeginTransaction(IsolationLevel.ReadCommitted);
+                _transaction = _session.BeginTransaction(IsolationLevel);
             }
         }
 
         public void RequireNew() {
-            RequireNew(IsolationLevel.ReadCommitted);
+            RequireNew(IsolationLevel);
         }
 
         public void RequireNew(IsolationLevel level) {