Painting Cement Fiberboard Siding

Products like hardiplank fiber cement siding will require regular painting to maintain their beautiful appearance unlike other sidings such as brick or insulated vinyl.

Painting cement fiberboard siding.

If there s material left on the fiber cement siding it can cause voids in the painting which gives an access point for water. This is due to the fact that fiber cement does not soak in the painting products like cedar pine or other wood siding products. 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. There are two common versions for use on homes apartment buildings or commercial structures.

Step 1 clean the fiber cement siding in order to properly seal the fiber cement siding it needs to be completely free of dust and debris. Prefinished siding arrives painted and ready for installation so it doesn t require a paint job or other preliminary maintenance. Factory primed siding has already been primed by the manufacturer so you ll just need to add one or two coats of paint. That shiny new look will soften and in the end will make keeping the siding clean much easier.

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. Finish all the cut edges of the cement boards with a primer that s recommended for fiber cement boards. Do not prime the siding it comes pre primed use 100 acrylic paint 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. Cement boards also known as hardie boards are a type of fiber cement siding.

Clean the cement board with a pressure washer. A pressure washing is necessary to remove chalking the old paint dusty oxidation residue from sunlight exposure. Brand new fiber cement siding arrives prefinished factory primed or unprimed. Use satin finish paint even though it costs more.

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. If you re repainting hardie plank or fiber cement siding you ll first need to clean your home s exterior. Wipe away excess with a damp rag don t put too much paint on your brush less is more. Do not paint a cement board unless you have thoroughly cleaned it first or you may have problems with adhesion.

If you are installing new siding finish all the cut edges and the planks with cement board compatible primer. A pressure washing will also remove dirt dust mold and mildew. The good news is hardie siding is easy to repaint.