How To Put Sheet Metal Siding Over Existing Siding

The exact installation process may vary depending on the siding you re using but generally you will need to position the posts on the corners and then nail them into place using the cut out nail slots.

How to put sheet metal siding over existing siding.

As you install the sheet metal siding be sure that the panels are lined up straight. 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. Install the corner posts that came with your metal siding first. There are two options for this.

The corner posts are the pieces of siding that will wrap around the corners of the surface you re working on. 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. Any imperfections in the wall will almost always show up in the siding. This type of siding can be placed over some existing siding but most will not be good.

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. Place the first siding sheet in place. 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. This is the most important step in the whole project in order to keep rain and snow from seeping under the metal siding.

When installing each sheet be sure to hammer the nails into the pre cut holes. Nail the sheet into place using the holes pre fabricated into the metal or nail the sheets to the studs according to manufacturer instructions. Why siding over existing siding is a bad move. Overlap each sheet by at least 2 inches.

Snap a level chalk line around the bottom of the house about an inch above the bottom of the existing wood siding for a steel starter strip that will hold the bottom of the first row of vinyl. Begin at the bottom corner of one side of the structure.