diff --git a/src/modules/mesh/1DCart/moduleMesh1DCart.f90 b/src/modules/mesh/1DCart/moduleMesh1DCart.f90
index 269f157..f400ab0 100644
--- a/src/modules/mesh/1DCart/moduleMesh1DCart.f90
+++ b/src/modules/mesh/1DCart/moduleMesh1DCart.f90
@@ -104,6 +104,7 @@ MODULE moduleMesh1DCart
       USE moduleSpecies
       USE moduleBoundary
       USE moduleErrors
+      USE moduleRefParam, ONLY: L_ref
       IMPLICIT NONE
 
       CLASS(meshEdge1DCart), INTENT(out):: self
@@ -122,6 +123,8 @@ MODULE moduleMesh1DCart
 
       self%x = r1(1)
 
+      self%surface = 1.D0 / L_ref**2
+
       self%normal = (/ 1.D0, 0.D0, 0.D0 /)
 
       !Boundary index
diff --git a/src/modules/mesh/1DRad/moduleMesh1DRad.f90 b/src/modules/mesh/1DRad/moduleMesh1DRad.f90
index d998267..fd617bd 100644
--- a/src/modules/mesh/1DRad/moduleMesh1DRad.f90
+++ b/src/modules/mesh/1DRad/moduleMesh1DRad.f90
@@ -104,6 +104,7 @@ MODULE moduleMesh1DRad
       USE moduleSpecies
       USE moduleBoundary
       USE moduleErrors
+      USE moduleRefParam, ONLY: L_ref
       IMPLICIT NONE
 
       CLASS(meshEdge1DRad), INTENT(out):: self
@@ -122,6 +123,8 @@ MODULE moduleMesh1DRad
 
       self%r = r1(1)
 
+      self%surface = 1.D0 / L_ref**2
+
       self%normal = (/ 1.D0, 0.D0, 0.D0 /)
 
       !Boundary index
diff --git a/src/modules/mesh/2DCart/moduleMesh2DCart.f90 b/src/modules/mesh/2DCart/moduleMesh2DCart.f90
index 4bf1f32..dbc8b25 100644
--- a/src/modules/mesh/2DCart/moduleMesh2DCart.f90
+++ b/src/modules/mesh/2DCart/moduleMesh2DCart.f90
@@ -144,6 +144,7 @@ MODULE moduleMesh2DCart
       USE moduleSpecies
       USE moduleBoundary
       USE moduleErrors
+      USE moduleRefParam, ONLY: L_ref
       IMPLICIT NONE
 
       CLASS(meshEdge2DCart), INTENT(out):: self
@@ -163,7 +164,7 @@ MODULE moduleMesh2DCart
       r2 = self%n2%getCoordinates()
       self%x  = (/r1(1), r2(1)/)
       self%y  = (/r1(2), r2(2)/)
-      self%weight = 1.D0
+      self%surface = SQRT((self%x(2) - self%x(1))**2 + (self%y(2) - self%y(1))**2) / L_ref
       !Normal vector
       self%normal = (/ -(self%y(2)-self%y(1)), &
                          self%x(2)-self%x(1) , &
diff --git a/src/modules/mesh/3DCart/moduleMesh3DCart.f90 b/src/modules/mesh/3DCart/moduleMesh3DCart.f90
index c451689..8170df7 100644
--- a/src/modules/mesh/3DCart/moduleMesh3DCart.f90
+++ b/src/modules/mesh/3DCart/moduleMesh3DCart.f90
@@ -109,6 +109,7 @@ MODULE moduleMesh3DCart
       USE moduleBoundary
       USE moduleErrors
       USE moduleMath
+      USE moduleRefParam, ONLY: L_ref
       IMPLICIT NONE
 
       CLASS(meshEdge3DCartTria), INTENT(out):: self
@@ -142,6 +143,8 @@ MODULE moduleMesh3DCart
       self%normal = crossProduct(vec1, vec2)
       self%normal = normalize(self%normal)
 
+      self%surface = 1.D0/L_ref**2 !TODO: FIX THIS WHEN MOVING TO 3D
+
       !Boundary index
       self%boundary => boundary(bt)
       ALLOCATE(self%fBoundary(1:nSpecies))