Acrylic resins are the key component of this render, providing flexibility and adhesive properties. While all homes are subject to natural expansion and contraction over the years, acrylic render gives you a peace of mind with its expansive properties. With that being said, expansion joints should be included in the render system to accommodate the natural expansion and contraction of the building materials due to temperature changes. While acrylic render is durable and low-maintenance, periodic cleaning may be required to remove dirt and algae buildup.