The colour of the mortar is another key consideration when choosing your brick slips. Approximately 10-15% of the visible finished wall will be mortar, so this will have a significant impact on the the brick slip cladding and the appearance of the finished wall. Looking at the two finished project images below, it's easy to see how the mortar colour impacts on the finish of the feature wall Kuci Design's Rustic Red Brick slips have been used in both projects and the rooms have a similar amount of natural light, yet due to the difference in the mortar colour, the walls look significantly different -- The image on the left has used a birch (off white) Lime based mortar (available on our websit