Can You Put Vinyl Siding Over Old Wood Siding

The manufacturers specifically say that to install their product over existing siding is to void the warranty.

Can you put vinyl siding over old wood siding.

Installing vinyl siding over wood siding. Surprisingly many vinyl siding manufacturers state that it s perfectly acceptable to install their product over old siding. Any imperfections in the wall will almost always show up in the siding. Yes you can put vinyl siding over existing wood siding assuming its condition is still good.

The main concern to understand is that the hardieplank siding is going to be on the house for. Yes you may be able to save some money by not removing the old siding but that old siding could be hiding problems that may bite you down the road. Left unchecked small issues can become major problems that could end up costing thousands of dollars to rectify. With other siding types fiber cement engineered wood etc.

Why siding over existing siding is a bad move. If your wood siding is beveled you ll need to use furring strips and foam board to provide a flat surface for the new vinyl siding. This goes for fiber cement hardwood and masonite siding. While covering lap siding with vinyl is an option for some siding other varieties of lap siding can t be covered by vinyl.

Generally the best idea is to remove any existing siding from your exterior walls before installing the vinyl siding. Remove the siding and install oriented strand board commonly referred to as osb or to use the existing siding that s on the house now as substrate or layer beneath the top surface underneath the hardieplank siding. While we recommend a full replacement vinyl siding can be installed over old wood siding but it requires an expert attention to detail knowledge of rotting wood mold and considerable preparation. If there isn t a moisture barrier beneath the old wood siding you ll want to install one over it before you add the new vinyl siding.

If it isn t there will be more steps that need to take place before it becomes possible and you might need the help of wood siding repair contractors to have the bad boards replaced which isn t always easy to do for the homeowner himself. This type of siding can be placed over some existing siding but most will not be good. On older homes any old siding vinyl or metal needs to be removed. There are two options for this.