diff --git a/applications/utilities/mesh/generation/cv2DMesh/Make/options b/applications/utilities/mesh/generation/cv2DMesh/Make/options
index 82659091b6..cd2a9a5107 100755
--- a/applications/utilities/mesh/generation/cv2DMesh/Make/options
+++ b/applications/utilities/mesh/generation/cv2DMesh/Make/options
@@ -10,7 +10,6 @@ EXE_INC = \
     ${EXE_NDEBUG} \
     ${CGAL_INC} \
     -I$(FOAM_APP)/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/lnInclude \
-    -I$(FOAM_APP)/utilities/mesh/generation/extrude/extrudeModel/lnInclude \
     -IconformalVoronoi2DMesh/lnInclude \
     -I$(FOAM_APP)/utilities/mesh/generation/cvMesh/conformalVoronoiMesh/lnInclude \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
@@ -18,6 +17,7 @@ EXE_INC = \
     -I$(LIB_SRC)/surfMesh/lnInclude \
     -I$(LIB_SRC)/edgeMesh/lnInclude \
     -I$(LIB_SRC)/dynamicMesh/lnInclude \
+    -I$(LIB_SRC)/mesh/extrudeModel/lnInclude \
     -I$(LIB_SRC)/triSurface/lnInclude
 
 EXE_LIBS = \
diff --git a/applications/utilities/mesh/generation/extrude/Allwclean b/applications/utilities/mesh/generation/extrude/Allwclean
index c1c94a806b..253b4b4d6d 100755
--- a/applications/utilities/mesh/generation/extrude/Allwclean
+++ b/applications/utilities/mesh/generation/extrude/Allwclean
@@ -2,7 +2,6 @@
 cd ${0%/*} || exit 1    # run from this directory
 set -x
 
-wclean libso extrudeModel
 wclean extrudeMesh
 wclean extrudeToRegionMesh
 
diff --git a/applications/utilities/mesh/generation/extrude/Allwmake b/applications/utilities/mesh/generation/extrude/Allwmake
index 5f09893321..3fd3d2314a 100755
--- a/applications/utilities/mesh/generation/extrude/Allwmake
+++ b/applications/utilities/mesh/generation/extrude/Allwmake
@@ -2,10 +2,7 @@
 cd ${0%/*} || exit 1    # run from this directory
 set -x
 
-wmake libso extrudeModel
 wmake extrudeMesh
-
-wmake libso extrudeToRegionMesh/createShellMesh
 wmake extrudeToRegionMesh
 
 
diff --git a/applications/utilities/mesh/generation/extrude/extrudeMesh/Make/options b/applications/utilities/mesh/generation/extrude/extrudeMesh/Make/options
index 3445b811ea..94b355be3c 100644
--- a/applications/utilities/mesh/generation/extrude/extrudeMesh/Make/options
+++ b/applications/utilities/mesh/generation/extrude/extrudeMesh/Make/options
@@ -1,10 +1,10 @@
 EXE_INC = \
     -IextrudedMesh \
-    -I../extrudeModel/lnInclude \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/surfMesh/lnInclude \
     -I$(LIB_SRC)/meshTools/lnInclude \
-    -I$(LIB_SRC)/dynamicMesh/lnInclude
+    -I$(LIB_SRC)/dynamicMesh/lnInclude \
+    -I$(LIB_SRC)/mesh/extrudeModel/lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \
diff --git a/applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/Make/options b/applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/Make/options
index 5732f9761d..9a1bd9942c 100644
--- a/applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/Make/options
+++ b/applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/Make/options
@@ -1,13 +1,11 @@
 EXE_INC = \
-    -I../extrudeModel/lnInclude \
-    -IcreateShellMesh/lnInclude \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/meshTools/lnInclude \
-    -I$(LIB_SRC)/dynamicMesh/lnInclude
+    -I$(LIB_SRC)/dynamicMesh/lnInclude \
+    -I$(LIB_SRC)/mesh/extrudeModel/lnInclude
 
 EXE_LIBS = \
-    -lextrudeModel \
-    -lcreateShellMesh \
     -lfiniteVolume \
     -lmeshTools \
-    -ldynamicMesh
+    -ldynamicMesh \
+    -lextrudeModel
diff --git a/applications/utilities/mesh/generation/extrude2DMesh/Make/options b/applications/utilities/mesh/generation/extrude2DMesh/Make/options
index 8adfe67b36..3be2f34c18 100644
--- a/applications/utilities/mesh/generation/extrude2DMesh/Make/options
+++ b/applications/utilities/mesh/generation/extrude2DMesh/Make/options
@@ -3,7 +3,7 @@ EXE_INC = \
     -I$(LIB_SRC)/surfMesh/lnInclude \
     -I$(LIB_SRC)/dynamicMesh/lnInclude \
     -Iextrude2DMesh/lnInclude \
-    -I../extrude/extrudeModel/lnInclude
+    -I$(LIB_SRC)/mesh/extrudeModel/lnInclude
 
 EXE_LIBS = \
     -lsurfMesh \
diff --git a/applications/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/Make/options b/applications/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/Make/options
index 8ace7c50da..f1db60d53f 100644
--- a/applications/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/Make/options
+++ b/applications/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/Make/options
@@ -4,7 +4,7 @@ EXE_INC = \
     -I$(LIB_SRC)/dynamicMesh/lnInclude \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/surfMesh/lnInclude \
-    -I$(FOAM_APP)/utilities/mesh/generation/extrude/extrudeModel/lnInclude
+    -I$(LIB_SRC)/mesh/extrudeModel/lnInclude
 
 LIB_LIBS = \
     -lmeshTools \
diff --git a/src/Allwmake b/src/Allwmake
index c4cbe16c95..a61c7a2e3e 100755
--- a/src/Allwmake
+++ b/src/Allwmake
@@ -52,6 +52,8 @@ wmake $makeType conversion
 
 wmake $makeType sampling
 
+wmake $makeType mesh/extrudeModel
+
 wmake $makeType dynamicMesh
 wmake $makeType dynamicFvMesh
 wmake $makeType topoChangerFvMesh
diff --git a/src/OpenFOAM/matrices/solution/solution.C b/src/OpenFOAM/matrices/solution/solution.C
index 50eb2fb96c..0b770b7daa 100644
--- a/src/OpenFOAM/matrices/solution/solution.C
+++ b/src/OpenFOAM/matrices/solution/solution.C
@@ -130,6 +130,7 @@ Foam::solution::solution
             obr,
             (
                 obr.readOpt() == IOobject::MUST_READ
+             || obr.readOpt() == IOobject::READ_IF_PRESENT
               ? IOobject::MUST_READ_IF_MODIFIED
               : obr.readOpt()
             ),
@@ -148,6 +149,7 @@ Foam::solution::solution
     (
         readOpt() == IOobject::MUST_READ
      || readOpt() == IOobject::MUST_READ_IF_MODIFIED
+     || (readOpt() == IOobject::READ_IF_PRESENT && headerOk())
     )
     {
         read(solutionDict());
diff --git a/src/OpenFOAM/meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.C b/src/OpenFOAM/meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.C
index ab13b34444..d5670fa331 100644
--- a/src/OpenFOAM/meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.C
+++ b/src/OpenFOAM/meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.C
@@ -132,6 +132,84 @@ Foam::polyBoundaryMesh::polyBoundaryMesh
 {}
 
 
+Foam::polyBoundaryMesh::polyBoundaryMesh
+(
+    const IOobject& io,
+    const polyMesh& pm,
+    const polyPatchList& ppl
+)
+:
+    polyPatchList(),
+    regIOobject(io),
+    mesh_(pm)
+{
+    if
+    (
+        (this->readOpt() == IOobject::READ_IF_PRESENT && this->headerOk())
+     || this->readOpt() == IOobject::MUST_READ
+     || this->readOpt() == IOobject::MUST_READ_IF_MODIFIED
+    )
+    {
+
+        if (readOpt() == IOobject::MUST_READ_IF_MODIFIED)
+        {
+            WarningIn
+            (
+                "polyBoundaryMesh::polyBoundaryMesh\n"
+                "(\n"
+                "    const IOobject&,\n"
+                "    const polyMesh&\n"
+                "    const polyPatchList&\n"
+                ")"
+            )   << "Specified IOobject::MUST_READ_IF_MODIFIED but class"
+                << " does not support automatic rereading."
+                << endl;
+        }
+
+        polyPatchList& patches = *this;
+
+        // Read polyPatchList
+        Istream& is = readStream(typeName);
+
+        PtrList<entry> patchEntries(is);
+        patches.setSize(patchEntries.size());
+
+        forAll(patches, patchI)
+        {
+            patches.set
+            (
+                patchI,
+                polyPatch::New
+                (
+                    patchEntries[patchI].keyword(),
+                    patchEntries[patchI].dict(),
+                    patchI,
+                    *this
+                )
+            );
+        }
+
+        // Check state of IOstream
+        is.check
+        (
+            "polyBoundaryMesh::polyBoundaryMesh"
+            "(const IOobject&, const polyMesh&, const polyPatchList&)"
+        );
+
+        close();
+    }
+    else
+    {
+        polyPatchList& patches = *this;
+        patches.setSize(ppl.size());
+        forAll (patches, patchI)
+        {
+            patches.set(patchI, ppl[patchI].clone(*this).ptr());
+        }
+    }
+}
+
+
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 Foam::polyBoundaryMesh::~polyBoundaryMesh()
diff --git a/src/OpenFOAM/meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.H b/src/OpenFOAM/meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.H
index 62d6f4a5e1..999b3815bf 100644
--- a/src/OpenFOAM/meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.H
+++ b/src/OpenFOAM/meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.H
@@ -119,6 +119,14 @@ public:
             const label size
         );
 
+        //- Construct given polyPatchList
+        polyBoundaryMesh
+        (
+            const IOobject&,
+            const polyMesh&,
+            const polyPatchList&
+        );
+
 
     //- Destructor
     ~polyBoundaryMesh();
diff --git a/src/OpenFOAM/meshes/polyMesh/polyMesh.C b/src/OpenFOAM/meshes/polyMesh/polyMesh.C
index 8877cdafcf..7a470bc9ff 100644
--- a/src/OpenFOAM/meshes/polyMesh/polyMesh.C
+++ b/src/OpenFOAM/meshes/polyMesh/polyMesh.C
@@ -338,7 +338,7 @@ Foam::polyMesh::polyMesh
             instance(),
             meshSubDir,
             *this,
-            IOobject::NO_READ,
+            io.readOpt(),
             IOobject::AUTO_WRITE
         ),
         points
@@ -351,7 +351,7 @@ Foam::polyMesh::polyMesh
             instance(),
             meshSubDir,
             *this,
-            IOobject::NO_READ,
+            io.readOpt(),
             IOobject::AUTO_WRITE
         ),
         faces
@@ -364,7 +364,7 @@ Foam::polyMesh::polyMesh
             instance(),
             meshSubDir,
             *this,
-            IOobject::NO_READ,
+            io.readOpt(),
             IOobject::AUTO_WRITE
         ),
         owner
@@ -377,7 +377,7 @@ Foam::polyMesh::polyMesh
             instance(),
             meshSubDir,
             *this,
-            IOobject::NO_READ,
+            io.readOpt(),
             IOobject::AUTO_WRITE
         ),
         neighbour
@@ -391,11 +391,11 @@ Foam::polyMesh::polyMesh
             instance(),
             meshSubDir,
             *this,
-            IOobject::NO_READ,
+            io.readOpt(),
             IOobject::AUTO_WRITE
         ),
         *this,
-        0
+        polyPatchList()
     ),
     bounds_(points_, syncPar),
     geometricD_(Vector<label>::zero),
@@ -410,11 +410,11 @@ Foam::polyMesh::polyMesh
             instance(),
             meshSubDir,
             *this,
-            IOobject::NO_READ,
+            io.readOpt(),
             IOobject::NO_WRITE
         ),
         *this,
-        0
+        PtrList<pointZone>()
     ),
     faceZones_
     (
@@ -424,11 +424,11 @@ Foam::polyMesh::polyMesh
             instance(),
             meshSubDir,
             *this,
-            IOobject::NO_READ,
+            io.readOpt(),
             IOobject::NO_WRITE
         ),
         *this,
-        0
+        PtrList<faceZone>()
     ),
     cellZones_
     (
@@ -438,11 +438,11 @@ Foam::polyMesh::polyMesh
             instance(),
             meshSubDir,
             *this,
-            IOobject::NO_READ,
+            io.readOpt(),
             IOobject::NO_WRITE
         ),
         *this,
-        0
+        PtrList<cellZone>()
     ),
     globalMeshDataPtr_(NULL),
     moving_(false),
diff --git a/src/OpenFOAM/meshes/polyMesh/zones/ZoneMesh/ZoneMesh.C b/src/OpenFOAM/meshes/polyMesh/zones/ZoneMesh/ZoneMesh.C
index 2497592ee8..33e17117c4 100644
--- a/src/OpenFOAM/meshes/polyMesh/zones/ZoneMesh/ZoneMesh.C
+++ b/src/OpenFOAM/meshes/polyMesh/zones/ZoneMesh/ZoneMesh.C
@@ -162,6 +162,32 @@ Foam::ZoneMesh<ZoneType, MeshType>::ZoneMesh
 {}
 
 
+template<class ZoneType, class MeshType>
+Foam::ZoneMesh<ZoneType, MeshType>::ZoneMesh
+(
+    const IOobject& io ,
+    const MeshType& mesh,
+    const PtrList<ZoneType>& pzm
+)
+:
+    PtrList<ZoneType>(),
+    regIOobject(io),
+    mesh_(mesh),
+    zoneMapPtr_(NULL)
+{
+    ZoneMesh<ZoneType, MeshType>(io, mesh);
+
+    if (this->size() == 0)
+    {
+        PtrList<ZoneType>& zones = *this;
+        zones.setSize(pzm.size());
+        forAll (zones, zoneI)
+        {
+            zones.set(zoneI, pzm[zoneI].clone(*this).ptr());
+        }
+    }
+}
+
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 template<class ZoneType, class MeshType>
diff --git a/src/OpenFOAM/meshes/polyMesh/zones/ZoneMesh/ZoneMesh.H b/src/OpenFOAM/meshes/polyMesh/zones/ZoneMesh/ZoneMesh.H
index 08ef19b4fc..96868c359a 100644
--- a/src/OpenFOAM/meshes/polyMesh/zones/ZoneMesh/ZoneMesh.H
+++ b/src/OpenFOAM/meshes/polyMesh/zones/ZoneMesh/ZoneMesh.H
@@ -106,6 +106,15 @@ public:
             const label size
         );
 
+         //- Construct given a PtrList
+        ZoneMesh
+        (
+            const IOobject&,
+            const MeshType&,
+            const PtrList<ZoneType>&
+        );
+
+
     //- Destructor
     ~ZoneMesh();
 
diff --git a/src/dynamicMesh/Make/files b/src/dynamicMesh/Make/files
index 02e9ad7ce4..a7f72ef9fa 100644
--- a/src/dynamicMesh/Make/files
+++ b/src/dynamicMesh/Make/files
@@ -86,4 +86,9 @@ motionSmoother/polyMeshGeometry/polyMeshGeometry.C
 
 motionSolver/motionSolver.C
 
+createShellMesh/createShellMesh.C
+
+extrudePatchMesh/extrudePatchMesh.C
+
+
 LIB = $(FOAM_LIBBIN)/libdynamicMesh
diff --git a/src/dynamicMesh/Make/options b/src/dynamicMesh/Make/options
index f168589ead..0757c29678 100644
--- a/src/dynamicMesh/Make/options
+++ b/src/dynamicMesh/Make/options
@@ -1,8 +1,10 @@
 EXE_INC = \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/meshTools/lnInclude \
-    -I$(LIB_SRC)/triSurface/lnInclude
+    -I$(LIB_SRC)/triSurface/lnInclude \
+    -I$(LIB_SRC)/mesh/extrudeModel/lnInclude
 
 LIB_LIBS = \
     -lfiniteVolume \
-    -ltriSurface
+    -ltriSurface \
+    -lextrudeModel
diff --git a/applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/createShellMesh/Make/files b/src/dynamicMesh/createShellMesh/Make/files
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/createShellMesh/Make/files
rename to src/dynamicMesh/createShellMesh/Make/files
diff --git a/applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/createShellMesh/Make/options b/src/dynamicMesh/createShellMesh/Make/options
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/createShellMesh/Make/options
rename to src/dynamicMesh/createShellMesh/Make/options
diff --git a/applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/createShellMesh/createShellMesh.C b/src/dynamicMesh/createShellMesh/createShellMesh.C
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/createShellMesh/createShellMesh.C
rename to src/dynamicMesh/createShellMesh/createShellMesh.C
diff --git a/applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/createShellMesh/createShellMesh.H b/src/dynamicMesh/createShellMesh/createShellMesh.H
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeToRegionMesh/createShellMesh/createShellMesh.H
rename to src/dynamicMesh/createShellMesh/createShellMesh.H
diff --git a/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.C b/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.C
new file mode 100644
index 0000000000..860536ea30
--- /dev/null
+++ b/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.C
@@ -0,0 +1,283 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012-2012 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "extrudePatchMesh.H"
+
+#include "createShellMesh.H"
+#include "polyTopoChange.H"
+#include "wallPolyPatch.H"
+#include "emptyPolyPatch.H"
+#include "wedgePolyPatch.H"
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+defineTypeNameAndDebug(extrudePatchMesh, 0);
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+extrudePatchMesh::extrudePatchMesh
+(
+    const fvMesh& mesh,
+    const fvPatch& patch,
+    const dictionary& dict
+)
+:
+    fvMesh
+    (
+        IOobject
+        (
+            dict.lookup("region"),
+            mesh.facesInstance(),
+            mesh,
+            IOobject::READ_IF_PRESENT,
+            IOobject::NO_WRITE,
+            true
+        ),
+        xferCopy(pointField()),
+        xferCopy(faceList()),
+        xferCopy(labelList()),
+        xferCopy(labelList()),
+        false
+    ),
+    extrudedPatch_(patch.patch())
+{
+    if (this->boundaryMesh().size() == 0)
+    {
+        bool columnCells = readBool(dict.lookup("columnCells"));
+
+        PackedBoolList nonManifoldEdge(extrudedPatch_.nEdges());
+        for (label edgeI = 0; edgeI < extrudedPatch_.nInternalEdges(); edgeI++)
+        {
+            if (columnCells)
+            {
+                nonManifoldEdge[edgeI] = true;
+            }
+        }
+
+        autoPtr<extrudeModel> model_(extrudeModel::New(dict));
+
+        faceList pointGlobalRegions;
+        faceList pointLocalRegions;
+        labelList localToGlobalRegion;
+
+        const primitiveFacePatch pp
+        (
+            extrudedPatch_, extrudedPatch_.points()
+        );
+
+        createShellMesh::calcPointRegions
+        (
+            this->globalData(),
+            pp,
+            nonManifoldEdge,
+            false,
+
+            pointGlobalRegions,
+            pointLocalRegions,
+            localToGlobalRegion
+        );
+
+
+        // Per local region an originating point
+        labelList localRegionPoints(localToGlobalRegion.size());
+        forAll(pointLocalRegions, faceI)
+        {
+            const face& f = extrudedPatch_.localFaces()[faceI];
+            const face& pRegions = pointLocalRegions[faceI];
+            forAll(pRegions, fp)
+            {
+                localRegionPoints[pRegions[fp]] = f[fp];
+            }
+        }
+
+        // Calculate region normals by reducing local region normals
+        pointField localRegionNormals(localToGlobalRegion.size());
+        {
+            pointField localSum(localToGlobalRegion.size(), vector::zero);
+
+            forAll(pointLocalRegions, faceI)
+            {
+                const face& pRegions = pointLocalRegions[faceI];
+                forAll(pRegions, fp)
+                {
+                    label localRegionI = pRegions[fp];
+                    localSum[localRegionI] +=
+                        extrudedPatch_.faceNormals()[faceI];
+                }
+            }
+
+            Map<point> globalSum(2*localToGlobalRegion.size());
+
+            forAll(localSum, localRegionI)
+            {
+                label globalRegionI = localToGlobalRegion[localRegionI];
+                globalSum.insert(globalRegionI, localSum[localRegionI]);
+            }
+
+            // Reduce
+            Pstream::mapCombineGather(globalSum, plusEqOp<point>());
+            Pstream::mapCombineScatter(globalSum);
+
+            forAll(localToGlobalRegion, localRegionI)
+            {
+                label globalRegionI = localToGlobalRegion[localRegionI];
+                localRegionNormals[localRegionI] = globalSum[globalRegionI];
+            }
+            localRegionNormals /= mag(localRegionNormals);
+        }
+
+
+        // Per local region an extrusion direction
+        vectorField firstDisp(localToGlobalRegion.size());
+        forAll(firstDisp, regionI)
+        {
+            //const point& regionPt = regionCentres[regionI];
+            const point& regionPt = extrudedPatch_.points()
+            [
+                extrudedPatch_.meshPoints()
+                [
+                    localRegionPoints[regionI]
+                ]
+            ];
+            const vector& n = localRegionNormals[regionI];
+            firstDisp[regionI] = model_()(regionPt, n, 1) - regionPt;
+        }
+
+
+        // Extrude engine
+        createShellMesh extruder
+        (
+            pp,
+            pointLocalRegions,
+            localRegionPoints
+        );
+
+        List<polyPatch*> regionPatches(3);
+        List<word> patchNames(regionPatches.size());
+        List<word> patchTypes(regionPatches.size());
+        PtrList<dictionary> dicts(regionPatches.size());
+
+        forAll (dicts, patchI)
+        {
+            if (!dicts.set(patchI))
+            {
+                dicts.set(patchI, new dictionary());
+            }
+        }
+
+        dicts[bottomPatchID] = dict.subDict("bottomCoeffs");
+        dicts[sidePatchID] = dict.subDict("sideCoeffs");
+        dicts[topPatchID] = dict.subDict("topCoeffs");
+
+        forAll (dicts, patchI)
+        {
+            dicts[patchI].lookup("name") >> patchNames[patchI];
+            dicts[patchI].lookup("type") >> patchTypes[patchI];
+        }
+
+        forAll (regionPatches, patchI)
+        {
+            dictionary&  patchDict = dicts[patchI];
+            patchDict.set("nFaces", 0);
+            patchDict.set("startFace", 0);
+
+            regionPatches[patchI] = polyPatch::New
+                (
+                    patchNames[patchI],
+                    patchDict,
+                    patchI,
+                    mesh.boundaryMesh()
+                ).ptr();
+
+        }
+
+        this->clearOut();
+        this->removeFvBoundary();
+        this->addFvPatches(regionPatches, true);
+
+
+        // At this point we have a valid mesh with 3 patches and zero cells.
+        // Determine:
+        // - per face the top and bottom patch (topPatchID, bottomPatchID)
+        // - per edge, per face on edge the side patch (edgePatches)
+        labelListList edgePatches(extrudedPatch_.nEdges());
+        forAll(edgePatches, edgeI)
+        {
+            const labelList& eFaces = extrudedPatch_.edgeFaces()[edgeI];
+
+            if (eFaces.size() != 2 || nonManifoldEdge[edgeI])
+            {
+                edgePatches[edgeI].setSize(eFaces.size(), sidePatchID);
+            }
+        }
+
+        polyTopoChange meshMod(regionPatches.size());
+
+        extruder.setRefinement
+        (
+            firstDisp,                              // first displacement
+            model_().expansionRatio(),
+            model_().nLayers(),                       // nLayers
+            labelList(extrudedPatch_.size(), topPatchID),
+            labelList(extrudedPatch_.size(), bottomPatchID),
+            edgePatches,
+            meshMod
+        );
+
+        autoPtr<mapPolyMesh> map = meshMod.changeMesh
+        (
+            *this,              // mesh to change
+            false               // inflate
+        );
+
+        // Update numbering on extruder.
+        extruder.updateMesh(map);
+
+        this->setInstance(this->thisDb().time().constant());
+        this->write();
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+extrudePatchMesh::~extrudePatchMesh()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.H b/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.H
new file mode 100644
index 0000000000..b13d957c5d
--- /dev/null
+++ b/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.H
@@ -0,0 +1,177 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012-2012 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    extrudePatchMesh
+
+Description
+    Mesh at a patch created on the fly. The following entried should be used
+    on the field boundary dictionary:
+
+        // New Shell mesh data
+
+        region          "regionMesh";
+        extrudeModel    linearNormal;
+        linearNormalCoeffs
+        {
+            thickness       40e-6;
+        }
+        nLayers         50;
+        expansionRatio  1;
+        columnCells      true;
+
+        // Patch information
+        bottomCoeffs
+        {
+            name        "bottom";
+            type        mappedWall;
+            sampleMode  nearestPatchFace;
+            samplePatch fixedWalls;
+            offsetMode  uniform;
+            offset      (0 0 0);
+        }
+
+        topCoeffs
+        {
+            name        "top";
+            type        patch;
+        }
+
+        sideCoeffs
+        {
+            name        "side";
+            type        empty;
+        }
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef extrudePatchMesh_H
+#define extrudePatchMesh_H
+
+#include "extrudeModel.H"
+#include "autoPtr.H"
+
+#include "fvMesh.H"
+#include "Time.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+
+/*---------------------------------------------------------------------------*\
+                        Class extrudePatchMesh Declaration
+\*---------------------------------------------------------------------------*/
+
+class extrudePatchMesh
+:
+    public fvMesh
+{
+
+private:
+
+    // Private data
+
+        //- Enumeration of patch IDs
+        enum patchID
+        {
+            bottomPatchID,
+            topPatchID,
+            sidePatchID
+        };
+
+        //- Const reference to the patch from which this mesh is extruded
+        const polyPatch& extrudedPatch_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("extrudePatchMesh");
+
+
+    // Constructors
+
+        //- Construct from mesh, patch and dictionary
+        extrudePatchMesh
+        (
+            const fvMesh&,
+            const fvPatch&,
+            const dictionary&
+        );
+
+
+    //- Destructor
+    virtual ~extrudePatchMesh();
+
+
+    // Member functions
+
+
+        // Access functions
+
+            //- Return region mesh
+            const fvMesh& regionMesh() const
+            {
+                return *this;
+            }
+
+            //- Return bottom patch
+            const polyPatch& bottomPatch() const
+            {
+                return this->boundaryMesh()[bottomPatchID];
+            }
+
+            //- Return top patch
+            const polyPatch& topPatch() const
+            {
+                 return this->boundaryMesh()[topPatchID];
+            }
+
+            //- Return sides patch
+            const polyPatch& sidesPatch() const
+            {
+                 return this->boundaryMesh()[sidePatchID];
+            }
+
+            //- Return extruded patch
+            const polyPatch& extrudedPatch() const
+            {
+                return extrudedPatch_;
+            }
+
+};
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //
+
diff --git a/src/finiteVolume/finiteVolume/fvSchemes/fvSchemes.C b/src/finiteVolume/finiteVolume/fvSchemes/fvSchemes.C
index 303eb42b80..bdbe5db092 100644
--- a/src/finiteVolume/finiteVolume/fvSchemes/fvSchemes.C
+++ b/src/finiteVolume/finiteVolume/fvSchemes/fvSchemes.C
@@ -258,6 +258,7 @@ Foam::fvSchemes::fvSchemes(const objectRegistry& obr)
             obr,
             (
                 obr.readOpt() == IOobject::MUST_READ
+             || obr.readOpt() == IOobject::READ_IF_PRESENT
               ? IOobject::MUST_READ_IF_MODIFIED
               : obr.readOpt()
             ),
@@ -372,6 +373,7 @@ Foam::fvSchemes::fvSchemes(const objectRegistry& obr)
     (
         readOpt() == IOobject::MUST_READ
      || readOpt() == IOobject::MUST_READ_IF_MODIFIED
+     || (readOpt() == IOobject::READ_IF_PRESENT && headerOk())
     )
     {
         read(schemesDict());
diff --git a/src/finiteVolume/fvMesh/fvMesh.C b/src/finiteVolume/fvMesh/fvMesh.C
index 98346e4c77..0889270894 100644
--- a/src/finiteVolume/fvMesh/fvMesh.C
+++ b/src/finiteVolume/fvMesh/fvMesh.C
@@ -295,7 +295,7 @@ Foam::fvMesh::fvMesh
     fvSchemes(static_cast<const objectRegistry&>(*this)),
     fvSolution(static_cast<const objectRegistry&>(*this)),
     data(static_cast<const objectRegistry&>(*this)),
-    boundary_(*this),
+    boundary_(*this, boundaryMesh()),
     lduPtr_(NULL),
     curTimeIndex_(time().timeIndex()),
     VPtr_(NULL),
diff --git a/src/mesh/Allwmake b/src/mesh/Allwmake
index 712094055c..4653b1d3c4 100755
--- a/src/mesh/Allwmake
+++ b/src/mesh/Allwmake
@@ -5,5 +5,6 @@ set -x
 
 wmake $makeType autoMesh
 wmake $makeType blockMesh
+wmake $makeType extrudeModel
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/Make/files b/src/mesh/extrudeModel/Make/files
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/Make/files
rename to src/mesh/extrudeModel/Make/files
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/Make/options b/src/mesh/extrudeModel/Make/options
similarity index 74%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/Make/options
rename to src/mesh/extrudeModel/Make/options
index 1618ab57ec..eabd0b53a8 100644
--- a/applications/utilities/mesh/generation/extrude/extrudeModel/Make/options
+++ b/src/mesh/extrudeModel/Make/options
@@ -3,5 +3,4 @@ EXE_INC = \
     -I$(LIB_SRC)/dynamicMesh/lnInclude
 
 LIB_LIBS = \
-    -lmeshTools \
-    -ldynamicMesh
+    -lmeshTools
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/extrudeModel/extrudeModel.C b/src/mesh/extrudeModel/extrudeModel/extrudeModel.C
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/extrudeModel/extrudeModel.C
rename to src/mesh/extrudeModel/extrudeModel/extrudeModel.C
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/extrudeModel/extrudeModel.H b/src/mesh/extrudeModel/extrudeModel/extrudeModel.H
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/extrudeModel/extrudeModel.H
rename to src/mesh/extrudeModel/extrudeModel/extrudeModel.H
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/extrudeModel/extrudeModelNew.C b/src/mesh/extrudeModel/extrudeModel/extrudeModelNew.C
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/extrudeModel/extrudeModelNew.C
rename to src/mesh/extrudeModel/extrudeModel/extrudeModelNew.C
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/linearDirection/linearDirection.C b/src/mesh/extrudeModel/linearDirection/linearDirection.C
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/linearDirection/linearDirection.C
rename to src/mesh/extrudeModel/linearDirection/linearDirection.C
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/linearDirection/linearDirection.H b/src/mesh/extrudeModel/linearDirection/linearDirection.H
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/linearDirection/linearDirection.H
rename to src/mesh/extrudeModel/linearDirection/linearDirection.H
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/linearNormal/linearNormal.C b/src/mesh/extrudeModel/linearNormal/linearNormal.C
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/linearNormal/linearNormal.C
rename to src/mesh/extrudeModel/linearNormal/linearNormal.C
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/linearNormal/linearNormal.H b/src/mesh/extrudeModel/linearNormal/linearNormal.H
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/linearNormal/linearNormal.H
rename to src/mesh/extrudeModel/linearNormal/linearNormal.H
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/linearRadial/linearRadial.C b/src/mesh/extrudeModel/linearRadial/linearRadial.C
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/linearRadial/linearRadial.C
rename to src/mesh/extrudeModel/linearRadial/linearRadial.C
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/linearRadial/linearRadial.H b/src/mesh/extrudeModel/linearRadial/linearRadial.H
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/linearRadial/linearRadial.H
rename to src/mesh/extrudeModel/linearRadial/linearRadial.H
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/sigmaRadial/sigmaRadial.C b/src/mesh/extrudeModel/sigmaRadial/sigmaRadial.C
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/sigmaRadial/sigmaRadial.C
rename to src/mesh/extrudeModel/sigmaRadial/sigmaRadial.C
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/sigmaRadial/sigmaRadial.H b/src/mesh/extrudeModel/sigmaRadial/sigmaRadial.H
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/sigmaRadial/sigmaRadial.H
rename to src/mesh/extrudeModel/sigmaRadial/sigmaRadial.H
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/wedge/wedge.C b/src/mesh/extrudeModel/wedge/wedge.C
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/wedge/wedge.C
rename to src/mesh/extrudeModel/wedge/wedge.C
diff --git a/applications/utilities/mesh/generation/extrude/extrudeModel/wedge/wedge.H b/src/mesh/extrudeModel/wedge/wedge.H
similarity index 100%
rename from applications/utilities/mesh/generation/extrude/extrudeModel/wedge/wedge.H
rename to src/mesh/extrudeModel/wedge/wedge.H