Rendering is really difficult to treat and care for. Whether you have painted render or silicone-based anti-mould coloured render, keeping all surfaces looking brand new is nigh on impossible after a while.
Render is susceptible to moss, algae and debris. Often, because of the uneven surface of render, it can provide the perfect conditions for moss and algae to grow. Add in the good old British weather and render can become a breeding ground for anything green!
Pressure washing render can cause it to crack and chip, we’ve even seen some walls have to be re-rendered because of extensive pressure washing. The white render shows up every imperfection, but removing imperfections with pressure washing can significantly damage the surface of the render, or even remove it from the wall.