Can Hardie Board Be Installed Over Wood Siding

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.

Can hardie board be installed over wood siding.

Replacing stucco with james hardie international s hardiplank siding on the exterior of your home dramatically changes the styling of the home. Hardie board siding can be made to mimic just about any other siding material including wood lap boards cedar shingles and wood shake siding. 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. Are you talking about going over wood lap siding.

Most hardie board siding comes with a 50 year limited transferable warranty. 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. However the board must be forced into the structural adhesive almost immediately upon application to insure that no ridge or crown is formed.

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. Where hardiebacker board is being installed directly to wood or metal framing the use of a structural adhesive in addition to mechanical fastening can be used. The best place to start is to closely examine the existing siding to get a good understanding of what condition it is actually in. 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.

Installing siding over siding. 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. More than 50 years. The short answer is that yes we can install hardie over stucco.

The term wood siding is kind of generic. 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. At any rate their instructions specifically state. Or is your wood siding one of the 303 plywood profiles.

Hardie plank siding has a nail line across the top of the board that is 1 down from the top and nails are supposed to fall between and 1 from the top of the board to give the best hold. Vinyl siding must be installed against a flat surface.