Hello Can I go over an old deck ?

Hello, thank you for your question. We do not recommend applying our decking products directly over any existing decking or flat surface. Many customers will remove the existing decking material and then apply our decking directly to the joist surfaces. It is important to determine if the existing framing is in good solid condition and complies with local building codes.. For more information please visit https://www.timbertech.com/resources/installation-help/ -AZEK Customer Care Team.