Hardiplank lap siding can be installed over braced wood or steel studs spaced a maximum of 24 o c.
Can hardiplank be installed over existing siding.
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.
Or directly to minimum 7 16 thick osb sheathing.
Several contractors have suggested that the wood siding need not be removed.
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.
The hardie website is unclear on this issue.
This is the main task to tackle to make sure that there are no preexisting issues on the home.
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.
Does this mean that hardieplank cannot be installed directly over existing wood siding without voiding the warranty.
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.
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.
This would be on an older house but the wood siding is in good condition.
Get rid of the rot.
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.
It s a perfect application for it because t 111 is nothing more than a textured plywood and a plywood makes a great sheathing.
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.
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.