Many old basketball courts have been renovated into new ones or repurposed after repairs. Since each situation is unique, it's important to handle them individually to ensure the best results. When replacing an old court with a new one, it's crucial to completely remove the previous surface before starting the new construction. The foundation should be properly compacted and built according to the new design specifications. It’s not advisable to leave part of the old ground as a base and then build only half of the new structure. This can lead to cracks in the new plastic surface layer. Therefore, the entire old structure should be removed, and the base should be expanded if necessary, before applying the new surface to avoid future damage. Old asphalt and cement concrete courts should also be handled differently based on their condition. For asphalt courts with many cracks, the first step is to clean the joints thoroughly and apply bitumen mastic to seal them. Larger damaged areas should be removed and replaced with new asphalt. After repair, the surface should be cleaned, sprayed with a layer of tack oil, and then covered with a fresh layer of asphalt for a smooth finish. For old cement concrete courts, all existing expansion joints must be removed, cleaned, and filled with new materials to allow proper movement. It’s recommended to apply a thin layer of asphalt emulsion over the old surface before laying down a non-woven geotextile over the joints. This helps prevent cracks from reflecting up through the new asphalt layer. Once this is done, a new layer of asphalt concrete can be applied for a durable and even playing surface. If the old cement brick or concrete court is less than 10cm thick, it’s generally not advisable to install a plastic surface directly over it. The original structure may be too weak, and once the new court is built, cracks can easily appear in the plastic layer. This issue has been commonly reported in many cases where the old base was not strong enough to support the new surface. Therefore, it's better to remove the old structure entirely and build a solid foundation before proceeding with the new court installation. Drawer Slides,heavy duty drawer slides,drawer runners,soft close drawer slides,cabinet drawer slides Foshan Nanhai Ranming Lijiali Hardware Co., Ltd , https://www.lijialihardware.com