What was the main problem with fiber cement board siding?

Cutting fiber cement siding generates respirable crystalline silica, a known human carcinogen. Inhaling too much silica can lead to silicosis, lung cancer, and COPD.
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What causes fiber cement siding to crack?

Nails driven below the panel surface and directional nailing can cause cracking and splitting of fiber cement. Nailing too high or close at an edge. This can create a small crack which leads from the nail to the edge of the siding board.
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What is the life expectancy of fiber cement siding?

Siding Materials and Their Lifespan

Fiber cement siding, on the other hand, offers high durability and can last as long as 50 years. Both siding materials require minimal maintenance, but fiber cement can often be repainted after a few years to enhance curb appeal.
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Does fiber cement siding rot?

Fiber cement siding, which was invented by manufacturer James Hardie®, is made from a mix of wood pulp and cement. This siding is very water resistant, and since rot is mostly caused by moisture, fiber cement siding is resistant to rot.
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What causes Hardie plank siding to crack?

Hardie board siding usually cracks due to poor installation. The original installer might have accidentally installed a nail too close to the edge of the siding, causing a crack. You can easily fix it by cleaning it and then using caulk to patch the gap.
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3 Common Installation Issues with James Hardie Siding



What are the disadvantages of fiber cement siding?

Top 5 Problems With Fiber Cement
  • Fiber cement siding requires maintenance.
  • Fiber cement siding absorbs moisture.
  • Fiber cement is difficult to install.
  • Fiber cement is not the most environmentally friendly siding.
  • Fiber cement is not energy efficient.
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Can fiber cement siding be repaired?

Repair or Patching Fiber Cement Board Siding

Refer to manufacturer recommendations for products that are compatible with fiber cement. For small areas of damage you can use a sealant/caulk (preferably one designed for cement repairs) but then you will have to paint those areas of repair to match the original color.
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How often do you have to paint fiber cement siding?

Fiber cement siding comes with some of the most extended guarantees in the industry, typically around 50 years, so it's among the longest-lasting siding products. It will need occasional repainting, however, usually every 10 to 15 years or so, depending on the quality of the paint.
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How do you maintain fiber cement siding?

How to Maintain Fiber Cement Siding
  1. Fiber Cement: A Low-Maintenance Material.
  2. Inspect the Caulking Regularly to Keep Moisture Protection High.
  3. Maintain Gutters and Downspouts.
  4. Keep Siding Clean to Prevent Problems Down the Line.
  5. Fiber Cement Must Be Repainted.
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Does fiber cement siding increase home value?

If homeowners are wondering whether fiber-cement siding is a good investment for their home, the answer is yes. Homeowners can recover as much as 76 percent of the upfront cost, making fiber-cement siding the third best exterior renovation project for adding value at resale.
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What is the longest lasting house siding?

Vinyl siding is a popular choice when it comes to your home's cladding and actually lasts much longer than expected. With no effort or cleaning, it's expected to last you about 60 years but with meticulous care and maintenance, you can expect your vinyl siding to last up to 100 years.
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How often does Hardie board need to be painted?

Hardie Plank is also called fiber cement siding. While it's far heavier than aluminum, vinyl or wood, it is extremely durable and typically only needs a new paint every ten to twenty years for maintenance. It is one of the best materials and long-term solutions for protecting your home.
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What is the most durable siding for a house?

In terms of price, maintenance, and strength, vinyl siding is the most durable siding material to choose from. It's also available in many different colors and styles such as dutch lap, shake, scalloped and more.
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How do you fix a crack in fiber cement siding?

  1. Step 1: Inspect the Damage. Take a close look at your damaged fiber-cement siding. ...
  2. Step 2: Clean the Siding. ...
  3. Step 3: Mix the Patching Compound. ...
  4. Step 4: Apply the Patching Compound to the Crack. ...
  5. Step 5: Let the Compound Set. ...
  6. Step 6: Paint the Siding.
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Can fiber cement siding get wet?

Fiber cement siding moisture problems: fiber cement manufacturers advise that the product should not be installed if it is wet. Doing so can lead to unsightly butt joint gaps in siding courses as the product dries on the building.
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How do you fix cracked fiber cement siding?

Use a plastic putty knife to apply the patching material to the damaged area, filling in the area and shaping the patch to match the original contours of the siding. Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process.
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When should I replace fiber cement siding?

It can last 20-40 years based on how well it was installed and maintained over the years. In contrast, fiber cement siding may last 50 or more years and maintains its high performance throughout its life.
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Will cement board rot outside?

In sharp contrast, cement backer board does not rot, warp, grow mold, or deteriorate when subjected to water.
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Does mold grow on Hardie board?

It is highly susceptible to mold and mildew. Hardie Plank has many seams and the seams must be sealed or water can infiltrate behind the siding. It can crack and if it does, you must tear the whole wall down in order to replace just one plank. It also is not maintenance free and requires painting every 10 years.
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Is fiber cement siding a good choice?

Durability.

Fiber cement is a material that does not warp, crack, or dent easily. It can withstand very hot and sub-freezing temperatures. Fiber cement siding holds up against heavy rain, hail, sleet, snow, and windstorms. It can even withstand hurricane-level storms.
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What is the best paint for fiber cement siding?

Sherwin-Williams Duration® Exterior Latex Coatings are the best topcoat choices for new fiber-cement siding. Because they have a substantially higher film build than conventional paints, only one coat is necessary over a primed surface – and Duration is guaranteed not to peel or blister.
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Can you power wash Hardie board siding?

It's recommended to pull out the garden hose and douse your home siding every 6-12 months. Don't use a high-pressure power washer to get the job done, as it turns out a low-pressure hose and a soft medium bristle (nonmetal) brush is the best way to remove dirt and debris from James Hardie® siding and trim.
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How do you replace one piece of fiber cement siding?

To remove and replace damaged siding:

Cut the fiber cement siding to length (wear approved dust protection). Blind-nail the fiber cement siding in place, starting with the bottom piece. Face-nail the top piece of fiber cement siding through the old siding. Prime and paint new siding to match the old.
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How do you fix a crack in cement board?

Use thin-set mortar to repair cracks or holes in cement boards. Step 3: Mix up a small amount of thin-set mortar following the manufacturer's instructions. Thin-set mortar typically has a working time of less than 15 minutes, so smaller batches are the way to go.
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