In short the answer is yes, wood siding provides a firm base to attach the new vinyl siding to. Of course you will want to make sure any rotted wood is replaced as well as nailing down loose boards. Remember to not worry how it looks since you are covering it with new siding. To make sure the walls are continuously even and smooth furring strips are applied as needed. Furring strips are lengths of wood that provide a sound base for the siding. A water resistant barrier is then placed between the old siding and the new. If you are considering updating your old wood siding to new vinyl contact Neuberg Construction today for a free quote.