Can You Put Vinyl Siding Over Old Siding

Installing vinyl siding over wood siding.

Can you put vinyl siding over old siding.

This goes for fiber cement hardwood and masonite siding. Any imperfections in the wall will almost always show up in the siding. With other siding types fiber cement engineered wood etc. 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.

The manufacturers specifically say that to install their product over existing siding is to void the warranty. The main concern to understand is that the hardieplank siding is going to be on the house for. To cover a lap siding with vinyl the first thing you need to do is to cover the existing siding with a moisture prevention barrier and highly durable foam insulation. More than 50 years.

Something you will want to keep in mind when making this decision is how long hardieplank will be on your home. Left unchecked small issues can become major problems that could end up costing thousands of dollars to rectify. There are two options for this. Just like vinyl siding you ll need to ensure the siding surface is completely flat either by the old siding or by adding slats to the wall.

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. Generally the best idea is to remove any existing siding from your exterior walls before installing the vinyl siding. Why siding over existing siding is a bad move. Many homeowners choose vinyl siding because it is relatively inexpensive easy for a do it yourselfer to install resists insects and rot and never needs.

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. This type of siding can be placed over some existing siding but most will not be good. The actual question is should the current siding be removed with osb installed or should the current siding remain to act as a substrate an additional layer beneath the top layer under the new hardieplank siding. While covering lap siding with vinyl is an option for some siding other varieties of lap siding can t be covered by vinyl.

Surprisingly many vinyl siding manufacturers state that it s perfectly acceptable to install their product over old siding. However it is quite difficult to install vinyl over other varieties of lap siding because any imperfections in the wall will show up after installing the new siding.