If you are just joining in; this is part three of a four part series on hardboards and knowing which one fits your needs. Part two covered LP Smartside in detail – Click here to read that article. Today we are covering James Hardie Fiber Cement Board’s history, make up, the pros and the cons.

History
While James Hardie has a company history dating back 120 years they headed up fiber-cement products in the mid 1980’s. All of these products capitalized on fiber cement’s strength and durability. Over the years, James Hardie harnessed their technical and manufacturing process through research and experience in Australia. Many fiber cement siding companies have tried entering the market that James Hardie monopolizes, but all other companies were never able to compare to the quality, expertise, and research years of James Hardie.
James Hardie Fiber Cement Siding previously only warrantied the panel and not the surface color as the color was applied by a third party. Customers got caught up in the “blame game” between the paint manufacturer and James Hardie. James Hardie empathized with their customer’s plight and decided to take over surface. They now “bake-on” the chosen color as the panel is manufactured. This creates a stronger integration between surface and panel. This also allows James Hardie to provide longer warranties for both surface color and panel failure.
Make-up
Fiber cement is made up of cellulose fibers, cement, sand, water, and minor additives. All of these ingredients combined, make a siding panel that will not catch on fire or burn, resists water damage, stands up against termites, and will not rot or warp (if installed properly).
Pros
Where to begin on the huge list of advantages James Hardie Fiber Cement Siding? Fiber Cement siding may qualify for insurance discounts and gives an “upscale-look” to your home while being durable and low maintenance.
James Hardie Fiber Cement is resistant to fire and has high impact ratings. Depending on your insurance you may qualify for discounts; before selecting your home’s hardboard siding call your insurance and see what your numbers will look like if you had rated fire-restiant and rated impact-resistant siding. Some homeowners have saved as much as 20%! Click here to read more about James Hardie Fire Resistance.
Appearance wise, you can tell fiber cement siding is not your average siding. It looks identical to cedar siding and has a wide range of lap panels, shake styles, and board and batten or sheet cladding available. Any style you have envisioned, James Hardie will have it. James Hardie boasts widths from 5 1/2″ – 12″! Since the surface color is integrated in the manufacturing process, you won’t have to worry about age showing on darker colors. James Hardie has patterned with Sherwin Williams to get you any color siding in Sherwin Williams paint selections. You have endless choices!


Every James Hardie product comes with two warranties; 1- Color Finish Warranty for 15 years and 2- Fiber Cement Panel Warranty for 30 years. With Cedar siding you have to re-paint your siding every 5 years. If you are the DIY homeowner you can sink a ton of time into re-painting your home every 5 years. If you are not the DIY homeowner, you can spent a decent chunk of change on re-painting your home every 5 years. With James Hardie- you don’t have to worry about the paint chipping or needing repainted that frequently.
Cons
If your fiber cement siding was installed incorrectly, your warranties will be voided and your siding could rot or warp as early as 5 years! Do your research on your potential contractor and make sure they know how to install. James Hardie is very specific in installation requirements. Click here to read the whole guide. The guide can be intimidating and will not be read by the faint of heart. Some installers do not like installing fiber cement siding because it requires special blades and is heavier than other hardboards on the market. This may make James Hardie Fiber Cement siding more expensive than other products- but this all depends on your contractor. It’s not a bad idea to call James Hardie directly and ask them what contractors in your area to they recommend. Fun Fact: If you live in Central, IL, Carlson Exteriors is the only James Hardie Preferred Contractor.

Again, the gapping can be an issue for some homeowners. This gap is required by James Hardie to allow your siding to minimally expand and contract over the seasons. Fiber cement is a wet manufacturing process- the initial gap is left with the intention of your siding to shrink. Behind each gap is a pan flashing the same color as your siding (just like LP). This pan flashing make the gap not as noticeable. Similar flashing is installed where siding butts up against roof lines. The pictures below show the gape between James Hardie siding and shakes. The gap is smaller where horizontal lap siding meets the roof line but it is still noticeable. This may bother some homeowners.
James Hardie does everything in their control to make their fiber cement siding last, but all of that can be undone if the homeowner does not stay on top of caulking every 3-5 years. Windows, corners, and trim details will need re-done. If you don’t perform this preventative maintenance, your siding can start to de-laminate, warp, or rot.
Conclusion
If you are interested in a siding that can score you some insurance discounts- this is the product for you! This siding has a wide array of styles, sizes, colors, and accessories to fit your dream home that vinyl and other hardboards can’t offer you.

Click here to read “Comparing Hardboards: Part 1”
Click here to read “Comparing Hardboards: Part 2 – LP Smartside”
4 responses to “Comparing Hard Board Siding: Part 3 – James Hardie Fiber Cement”
[…] Next Up: James Hardie Fiber Cement Siding […]
[…] it’s general pros and cons. After that we zoned in on the specific brands LP Smartside and James Hardie Fiber Cement. Now we are going to look at Royal Celect Siding; what it is, it’s history, and the benefits […]
Thanks for the interesting read about James Hardie Fiber Cement. I didn’t know that this product is made in a way that it won’t catch on fire while also resisting water damage. It’s really cool to think that there are ingredient combinations out there that are capable of doing this.
These articles have been very helpful. We are looking to replace our siding and were very interested in the 3 hard board options you have reviewed. It has given us a lot to think about, but we now know what questions to ask. Thank you so much!