Repainting Fiber Cement Siding

If you re repainting hardie plank or fiber cement siding you ll first need to clean your home s exterior.

Repainting fiber cement siding.

Acid and high pressure washing can damage the fiber cement surface and is not recommended. If your siding is unprimed you ll need to prime it with an acrylic primer before painting. It is the ideal alternative solution to conventional wood or vinyl siding because has many benefits that these other types of siding don t offer. Clean james hardie colorplus products by using water and a soft brush or cloth.

If it is primed or you ve already primed it simply wash it off with a low pressure water hose and paint it like normal. A low pressure water spray and a soft medium bristle non metal siding cleaning brush is most suitable for cleaning fiber cement products. The good news is hardie siding is easy to repaint. Also sand any glossy surfaces to make them dull.

Prefinished siding arrives painted and ready for installation so it doesn t require a paint job or other preliminary maintenance. Strong winds and hail may also cause minor flaws in the finish. Caulk transitions where fiber cement meets trim use a quick dry flexible paintable caulk that is designed to bond to fiber cement and your trim material smooth caulk with your finger. Maybe you bought a house that already has james hardie fiber cement siding on it and you don t love the colour or maybe you had it installed years ago and are looking to freshen things up.

Wipe away excess with a damp rag don t put too much paint on your brush less is more. Whatever your reason you will eventually want to repaint your beautiful james hardie exterior. Repainting fiber cement siding is incredibly simple and can be done by anyone in most cases. Scrape away any remaining peeled or checked paint and sand those areas.

A pressure washing will also remove dirt dust mold and mildew. Factory primed siding has already been primed by the manufacturer so you ll just need to add one or two coats of paint. Rinse thoroughly and allow to dry. When repainting fiber cement siding pressure clean with a minimum of 2100 psi pressure to remove all dirt dust grease oil loose particles foreign material and defective coatings.

If you live in a very cold or very hot climate your fiber cement siding may require repainting after a shorter period. 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. A pressure washing is necessary to remove chalking the old paint dusty oxidation residue from sunlight exposure.