Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResult.cs
===================================================================
diff -u -r0868d78756c7992a83a096f3d3759046c2dbb217 -rce94b8228bc7e51779b3754217580f13cb35e475
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResult.cs	(.../HeightStructuresFailureMechanismSectionResult.cs)	(revision 0868d78756c7992a83a096f3d3759046c2dbb217)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResult.cs	(.../HeightStructuresFailureMechanismSectionResult.cs)	(revision ce94b8228bc7e51779b3754217580f13cb35e475)
@@ -39,7 +39,11 @@
         /// </summary>
         /// <param name="section">The <see cref="FailureMechanismSection"/> to get the result from.</param>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="section"/> is <c>null</c>.</exception>
-        public HeightStructuresFailureMechanismSectionResult(FailureMechanismSection section) : base(section) {}
+        public HeightStructuresFailureMechanismSectionResult(FailureMechanismSection section) : base(section)
+        {
+            assessmentLayerTwoA = (RoundedDouble)double.NaN;
+            AssessmentLayerThree = (RoundedDouble)double.NaN;
+        }
 
         /// <summary>
         /// Gets the value of assessment layer two a.