Fiber cement is Fiber cement, right? So what is the difference from one brand to another?  Well, Certainteed Weatherboard and James Hardie fiber cement siding have some things in common. Both are very durable, rot proof, fire rated and impervious to wood boring insects. They are priced about the same and both come in an array of shapes, pre-finished colors and textures. They are manufactured by reputable companies who have been around for a long time. Now here’s where they differ:

  1. Warranty: James Hardie offers a 30 year limited warranty on their primed lap siding.  Certainteed offers a 50 year limited transferrable warranty.
  2. Appearance: CertainTeed, in my opinion, does the best job in the industry of duplicating the look of real wood.  The pattern is a deeper, more authentic wood-grain pattern than James Hardie.  You will find far fewer boards with duplicated wood grain patterns with Certainteed than with James Hardie.
  3. Pre Finished Stained siding: CertainTeed offers pre-finished stained siding available in 6 Premium colors.  “Get the beauty of stained Cedar without the drawbacks of wood.”
  4. Environmental Friendliness: Certainteed is committed to “Green Building”.  Certainteed uses 30% recycled fly ash as a binder in their boards.  Fly ash is a material that would otherwise be disposed of in landfills. They also manufacture using recycled water, recycle their waste verses filling landfills, and are recognized by ENERGY STAR for achievements towards reducing greenhouse emissions through energy efficiency.
  5. Health Factors: James Hardie siding is largely composed of silica. When cut a fine dust containing this silica is released into the air.  Breathing silica dust can cause silicosis, a disease affecting the lungs and respiratory system.
  6. Durability: Certainteed better resists the effects of heavy rain, high humidity and extreme cold temperatures.  It has a 60% higher interlaminate bond strength compared to James Hardie meaning it will not delaminate.  This feature is guaranteed in Certainteed’s warranty.
  7. Impact Resistance: Certainteed siding has been proven to be less likely to fracture upon impact than James Hardie siding.
  8. Primer Finish: Certainteed uses FiberTect sealant which actually penetrates into the boards and bonds with the fiber cement material, protecting the siding from unwanted moister.  The FiberTect also bonds better with paint giving you a longer lasting finish.  You can wait up to 2 years before painting new CertainTeed siding versus 6 months with James Hardie.
  9. Over 100 years of building products leadership: CertainTeed is one of the nation’s largest and most respected building products manufactures.

Fiber Cement siding is an excellent investment for your home regardless of the brand you choose.



If you have ever solicited quotes for a home improvement project, you were probably more confused about what you were paying for than when you started. The more quotes you received the larger the variance between proposals.

Pricing is in the details. Regardless of the type of project; siding replacement, window replacement, roofing replacement, or any other home improvement; the price on the quote really doesn’t mean anything without knowing the specifications of ALL the work to be performed. For example, “replace all siding on the home” is not a specification. Describing the process of replacing the siding on your home would be specific, and would contain a list of specifications. For example: Remove all existing siding and place in contractor provided jobsite dumpster. Does “replace all siding on your home” include removal of the old siding? Probably. But it may not include the disposal of the waste. All siding manufacturers require a moisture barrier (house wrap) between the structure and the siding. Would this be included in “replace all siding on your home”? Very doubtful. What about inside corner boards, outside corner boards, window trim, window flashing, and cornice molding?

Window replacement pricing can be just as confusing and sometimes misleading. A $189 window does not meet the same specifications as a more expensive window. In fact, it does not qualify to meet the Federal Energy Star qualifications. Replacement Windows are manufactured using many different materials including: vinyl, cellular pvc, fiberglass, wood, and aluminum clad wood. A double pane window can be produced using single strength or double strength glass for each pane. The glass can then be coated with a low e coating. The low e coating can be applied to one or both panes of the glass. If it is applied to both panes, it is typically referred to as low e2. The low e coating will lessen the ultra violet sun rays and reduce the heat infiltration in the home. The glass coating efficiency will be reflected in the Solar Heat Gain Coefficent (SGHC) rating. The air space between the 2 panes of glass can be filled with a gas with more density than air such as argon or krypton which increases the insulating value of the glass and would be reflected in the U-Value rating. The other things that can affect window replacement prices are grids. Grids can be installed between the 2 panes of glass which is referred to as GBG (grids between the glass); installed on the interior and exterior of the glass which is referred to as SDL (simulated divided lite); or the grids can separate multiple panes of glass which is referred to as TDL (true divided lite). Again, pricing is in the details.

There are two ways a contractor can earn your business. He can try to be the lowest price or the best value. The lowest price typically comes with a large amount of risk. A low price typically means the following: low overhead (lack of capital, needs large down payment), no business location (moves around a lot), no workers compensation insurance, no general liability insurance, no business license, and no contractor’s license. The more items on the above list that applies, the greater the risk to the home owner. The best value is typically achieved when the customer knows exactly what they are going to receive (detailed specifications) from a company that has solid reputation with a history. They will supply a large reference list of previous customers in your area, require little or no down payment, provide proof of insurance with a contact and phone number, proof of business license, and a state contractor’s license.

The “highest price” is the perceived diminished value you will receive from not necessarily the most expensive quote. That’s right. If what you think I described above will result in the most expensive quote, you are wrong. Pricing for all reputable contractors is basic economics. The more material and labor you purchase, the lower the costs you will be able to obtain. Obviously the more material a company purchases, will enable them to negotiate larger discounts from the distributors. In fact, they may be able to buy directly from the manufacturers. Labor is the same way. Do you think a roofing crew would prefer to work 3 days a week on average or 5-6 days on average at a little lower rate? Now don’t start the “you subcontract your work?” It does not matter whether you subcontract your labor or if you have employees doing the work, the people who are good at what they do, highly specialized in their field, want to be paid on their performance, a per job rate, not an hourly rate!

The benefit to you is access to the highest quality craftsmanship, name brand products with superior warranties at the most competitive prices. Remember, pricing is in the details. Don’t make assumptions or rely on verbal commitments. Keep us all (contractors) accountable. The more you keep us accountable to you, the customer, the more we have to account for each other. The greater the competition leads to higher quality materials and workmanship at more competitive prices. But this cannot be obtained without THE DETAILS!