No, they are designed to be maintenance free. The cedar cladding has a high resistance to decay, with durability and natural preservatives. The western red cedar is 100% maintenance free and has a typical lifespan of 40+ years. Cedar will naturally weather and go silver over time. If desired, you can prolong the different shades of red and brown by oiling the cedar with a UV protection oil not long after installation. This process will have to be repeated every 4-5 years depending on product used.