Repainting Cement Board Siding

Mask trim and windows.

Repainting cement board siding.

Sealing caulking fiber cement siding. While a paint job on fiber cement siding lasts longer than wood usually anywhere between five to fifteen years it will eventually need to be redone. 14 see james hardie technical bulletin 17 for painting and other fiber cement repair recommendations. Make sure the cement boards are clean.

Professional painters share the following tips for getting the best results when painting cement board siding. Whether you ve got a colorplus finish or custom paint on your existing hardie siding you don t have to use primer when re painting hardie. You will have to repaint it eventually. Unlike vinyl aluminum and other siding materials if you choose to install fiber cement cladding be prepared.

Cover bushes with drop cloths. Brand new fiber cement siding arrives prefinished factory primed or unprimed. All you should have to do is rinse your siding use a garden hose no pressure washers here to clean off any dust or dirt. Factory primed siding has already been primed by the manufacturer so you ll just need to add one or two coats of paint.

The company recommends 100 acrylic paint. The good news is hardie siding is easy to repaint. Take care when re painting to avoid incompatible paints. To help your paint adhere to the fiber cement siding and to get the most uniform looking finish on your paint job the best practice is to apply one coat of a quality exterior latex stain blocking or masonry primer to all of the siding.

Be sure to use paintable caulk. How were butt joints and end joints treated flashed caulked. Finish all the cut edges of the cement boards with a primer that s recommended for fiber cement boards. Be sure to do this within 180 days of installation.

Prefinished siding arrives painted and ready for installation so it doesn t require a paint job or other preliminary maintenance.