Allow moss in the mortar lines
In shady, damp areas the pale limestone paving will naturally attract moss. While the main slab can be brushed to prevent slips, the mortar lines are left mossy here, to add soft textured lines.
In shady, damp areas the pale limestone paving will naturally attract moss. While the main slab can be brushed to prevent slips, the mortar lines are left mossy here, to add soft textured lines.