Can Hardie Board Be Installed Over Wood Siding

Installing siding over siding.

Can hardie board be installed over wood siding.

Vinyl siding must be installed against a flat surface. Unfortunately it isn t a good idea to try to install hardiplank siding over the top of surfaces that aren t flat and even. Hardieplank lap siding may be installed on flat vertical wall applications only. One of the most common questions homeowners ask us is whether hardie board can be installed over stucco or if the stucco must always 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. The term wood siding is kind of generic. Replacing stucco with james hardie international s hardiplank siding on the exterior of your home dramatically changes the styling of the home. Any lower and you might see a few nail heads poking through the bottom of the next board any higher and your siding is likely to be loose and.

This siding is completely rot and insect resistant and can even handle salt spray from the ocean. If the wood siding is beveled or lapped you will need vertical furring strips 16 inches apart covered with rigid foam board to provide a. 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. However the board must be forced into the structural adhesive almost immediately upon application to insure that no ridge or crown is formed.

The best place to start is to closely examine the existing siding to get a good understanding of what condition it is actually in. Are you talking about going over wood lap siding. Hardie board siding can be made to mimic just about any other siding material including wood lap boards cedar shingles and wood shake siding. At any rate their instructions specifically state.

Most hardie board siding comes with a 50 year limited transferable warranty. The best method involves installing strapping structural wood framing fastened through the existing stucco to the studs. More than 50 years. Or is your wood siding one of the 303 plywood profiles.

Something you will want to keep in mind when making this decision is how long hardieplank will be on your home. A case study in how it can go horribly wrong 10 total shares recent comments nerg admin on painting hardie board siding a custom color before installation.