James Hardie’s ColorPlus® Technology offers a beautiful array of warm, cool and neutral colors, engineered to last, and designed to compliment your home and your landscape.

In general, we find that most clients do honestly love the factory colors offered by James Hardie, but there are occasions where a client may want a very specific color that just isn’t available through James Hardie.

When the color you want for your Hardie siding isn’t available

The obvious solution is to paint it, but before jumping on that train, it’s important to understand a few things about this product beforehand.

Hardie fiber cement siding is an excellent product, but has different properties than typical cedar siding. Fiber cement has a higher PH value (more alkaline), which means it can be very tough on the paint that covers it. So you need to use a paint that’s engineered to work with masonry products.

The best way to paint Hardie siding is to do it in a controlled environment, before it’s installed on your home. This is what James Hardie does at the factory and you can have this professionally done for you too.

The key advantages of machine painting Hardie Board prior to install:

  1. All sides of the Hardie Board are painted (even the edges) and therefore the entire board is completely sealed. (Although Hardie Board comes from the factory without the back of the board primed, according to James Hardie’s support department, they say you can prime and paint the entire board.) 
  2. Paint coat thickness is calibrated and consistently applied according to manufacturer’s specifications (something that is just not possible when painting by hand.)
  3. You get a completely uniform finish because a machine does all the work AND the boards are placed on the rack horizontally for uniform spray and dry (the paint doesn’t run.)
  4. The environment is controlled, without humidity and temperature concerns, so the results are always optimal (e.g., the sun isn’t baking on your paint faster than it should and the paint has the opportunity to penetrate the surface of the substrate.) 
  5. Pre-painting siding before installation is just plain faster and less expensive.

About Priming

James Hardie will ship your siding to you or your contractor, primed and ready to be painted. Although the James Hardie website states that their factory primer can be top-coated within 180 days, most professional painters will tell you that a fresh coat of primer makes everything better because you just never really know how long ago the product was actually primed and how long it was hanging out at the factory before shipping.

Recommended Paint & Primer

We’ve used Sherwin Williams Emerald paint on Hardie Board and had good success. Sherwin Williams “Emerald” is their top of the line acrylic latex exterior paint.

Sherwin-Williams Loxon Masonry Primer can be used to prime Hardie Board before painting. We know that Hardie comes pre-primed and they say you have 180 days to apply your top coat, but we usually opt to prime before painting just in case the primer is older than we think it is. 

Custom Paint Example Using Sherwin Williams Emerald

Hardie Plank - W/ 7” Reveal

Hardie Plank – W/ 7” Reveal – Siding Color: Sherwin Williams, “Sun Dried Tomato” Trim Color: Sherwin Williams, “Sealskin”

You can find out more about the types of paints recommended by James Hardie here.

Resources

If you’re in the Ulster/ Dutchess County area, we recommend Excelsior Wood Products. They handle all of our factory painting and have done a damn fine job of it.

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I run company of skilled exterior specialists in Hudson Valley NY. We install siding, roofs and windows, with a focus on James Hardie fiber cement siding. Have a question? Just ask me in the comments below and I will do my best to respond in a timely manner.

Comments

  1. Hello, my house has light mist hardie plank which is a factory colour, but i want to paint over it with the sail cloth paint, another james hardie factory colour is this possible? and can it be done directly, or would you need to paint over it in white first then sail cloth?

    • Great question! The beauty of Hardie fiber cement is that you can paint directly over the existing color. There really isn’t any prep work like wood. The main thing to keep in mind is that the surface is clean of any oil,dirt or dust. Make sure you use an exterior paint and a paint that will work on cement products. Sherwin Williams makes a great paint for this. Best of luck with your project and thank you for the inquiry.

  2. I am having a new house built, they are using hardi board finish on osb for the facia and sauffit. We had one inch of rain and the next morning they painted it. Is my concern legitimate that they should have allowed time for the material to dry before painting. Second, could this compromise the longivity of the paint?

    • Sounds like the contractor was putting their scheduling needs ahead of what’s best for the client. I would of waited a couple of days to paint it. It would concern me if I was in your shoes for sure. I would recommend that you reach out to a good painting company and the paint manufacturer’s to get there take on it. I’m not sure what kind of recourse you actually have at this juncture. If you do get a painting company or the paint manufacturer’s to comment on this in writing, hold on to those documents. This way, if you have a warranty issue down the road, you will at least have some legs to stand on. Good luck with that.

  3. Can Hardi Plank be installed right from the company (like Lowe’s), using just the factory colors on the siding, or does it NEED to be painted.
    Thank you

    • Yes Hardie can be installed with the stock hardie colors.we prefer the Hardie color plus! This is an option that can be utilized if the stock colors aren’t appealing to you. I would recommend staying away from the big box stores when purchasing any hardie materials and or services. You can go tojameshardie.com and find a preferred contractor for your area! Happy cladding.

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