Can Hardiplank Be Installed Over Existing Siding

Get some regular cdx plywood the same thickness as your t 111 fill in the gaps put the tyvek on there put the hardie on there.

Can hardiplank be installed over existing siding.

This would be on an older house but the wood siding is in good condition. And if a board does get wet but is not sitting in moisture for an extended period of time you can simply let it dry out before installing. It s a perfect application for it because t 111 is nothing more than a textured plywood and a plywood makes a great sheathing. Hardie plank joints butt joints james hardie siding is 12 feet long which means that siding on your longer walls will need to join together.

However it needs to be installed in accordance with our written installation instructions for hardiepanel siding in regard to framing joints paint and clearences above ground. 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. James hardie provides a 1 year limited product warranty for hardiepanel used as skirting on a mobile home. 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.

Does this mean that hardieplank cannot be installed directly over existing wood siding without voiding the warranty. The hardie website is unclear on this issue. Get rid of the rot. Or directly to minimum 7 16 thick osb sheathing.

This is the main task to tackle to make sure that there are no preexisting issues on the home. What is hardiewrap weather barrier used for. Several contractors have suggested that the wood siding need not be removed. More than 50 years.

Hardiplank lap siding can be installed over braced wood or steel studs spaced a maximum of 24 o c. Something you will want to keep in mind when making this decision is how long hardieplank will be on your home.