Wonderful roeland! Is it also possible to add a seperate pin for the mortar/cement. Like an offset rule between each plank from 0 to around 10 (cm), to simulate more raw brick material? Even better would be an extra noise option to simulate "un-perfect" straight lines from the mortar/cement material.
You could also kind of achieve this by drawing in the mortar/cement on the seperate plank-texture, but then each plank would need a small overlap.