Installing Hardiplank Over Existing Siding

Or directly to minimum 7 16 thick osb sheathing.

Installing hardiplank over existing siding.

The only downside of pneumatic tools is that sometimes the installer will get going a little bit too quickly and will lose track of where the nails are going. Several contractors have suggested that the wood siding need not be removed. 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. Does this mean that hardieplank cannot be installed directly over existing wood siding without voiding the warranty.

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. This would be on an older house but the wood siding is in good condition. Why siding over existing siding is a bad move. Hardiplank lap siding can also be installed over foam insulation up to 1 thick irregularities in framing sheathing and or foam insulation can mirror through the finished application.

Hardie plank siding is almost always installed with air nailers which are the best tool for quick installation. Something you will want to keep in mind when making this decision is how long hardieplank will be on your home. According to the best practices manual from james hardie existing siding can be used as a substrate as long as it is in good condition meaning that it is not warped bowed curling delaminated or rotting. As a homeowner you will work with a contractor who will facilitate the installation of your james hardie siding trim soffit wrap and flashing products including products with colorplus technology.

We have dozens of installation specialists throughout the u s. The hardie website is unclear on this issue. Installing hardiplank lap siding measure up from the ground 6 inches plus the width of one plank at a corner and make a mark on both sides of the corner. Using existing siding for replacing siding the best place to start is to closely examine the existing siding to get a good understanding of what condition it is actually in.