Installing New Siding Over Old

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

Installing new siding over old.

With other siding types fiber cement engineered wood etc. Can you put new siding over old siding in general or do i need to remove the existing one. It s especially affordable when it placed over existing siding because the labor of removing the old siding is not needed. You can put tyvek over the the existing t111 siding and then add your hardieplank over that.

On existing houses old vinyl or metal siding must be removed but. The trim will the windows will be a bit deeper than perhaps you ve seen in the past but that siding can stay just like that. Surprisingly many vinyl siding manufacturers state that it s perfectly acceptable to install their product over old siding. Since you need a firm base to install vinyl siding you first need to remove old vinyl and expose the underlying wood.

You can install vinyl siding over old wood siding but should not try to install new vinyl siding over old vinyl siding. Foam board is however often added in order to help level out the wall when it has certain problems with it. In new construction it typically is installed over wood wall sheathing wrapped with rigid foam insulation and a moisture barrier. There are a few things that you ll need to know when doing this however.

One major stipulation with the james hardie siding warranty is that it specifically states that if any project is not installed according to the best practices standards the warranty on that material is null and void. Even though most reputable contractors will never install siding over existing siding there are knuckleheads out there that will say you can do it and it s not a problem. Never install vinyl siding over rotten wood. That s why it s important to make sure that the quote you get includes removal of the old siding.

In most cases you can put new siding directly on top of old siding without having to remove the old siding first and in addition it will in fact add an addition layer of insulation thereby helping lower your energy bill. Why siding over existing siding is a bad move.