Repairing Guides

how to repair broken hardie board

by Olaf Quigley Published 2 years ago Updated 1 year ago
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How to Repair a Damaged Hardie Board Cement Fiberboard

  • Step 1. Cut out the area where the cement board has suffered damage. Attach the appropriate blade to the angle grinder.
  • Step 2. Use the pry bar to pry the pieces of broken Hardie board out of the way and scrape the floor free of thinset...
  • Step 3. Measure the area and cut a piece of new Hardie board to replace the...

Full Answer

How much does a 4x8 sheet of Hardie board cost?

The Cost. Hardie board siding runs about $0.70 to $5.25 per square foot. This could lead to a total cost of anywhere from $4,700 to $13,300. Considering this, how much does a 4x8 sheet of Hardie board weigh? Additionally, does Hardie board increase value of home?

Is Hardie board siding worth the money?

The answer is yes. The Hardie board siding cost may seem high at first, but this product saves you money over time and pays for itself in the end by: For many people, the beauty and convenience that Hardie siding brings alone are worth the price.

How to repair Hardy board?

Things You'll Need

  • Safety glasses
  • Work gloves
  • Dust mask
  • Angle grinder with carbide or diamond blade
  • Replacement piece of HardieBacker board
  • Hammer
  • Nails
  • Pry bar
  • Floor scraper
  • Thinset mortar

More items...

How to install Hardie board?

Hardie boards should be at least 6″ above the grade level of the house. There should also be a 1″ -2″ gap between horizontal surfaces like steps, decks, or adjacent roofs. Use an overlap gauge for support if you are working alone. Install the siding boards and butt the courses tightly together.

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How do you fix a broken Hardie plank?

Use Putty and Paint You'll need to remove loose pieces of cement from inside the crack with tweezers followed by filling it completely with a quality putty. Once the putty has dried, sand it down until it is level with the surface of the plank and then paint over it using a brush or roller.

Can Hardie board be patched?

Dents, chips, cracks and other minor surface damage in Hardie® siding and trim products can be filled with cementitious patching compound.

How do you replace one piece of fiber cement siding?

8:3314:21How to repair and replace damaged siding: Hardie board, Masonite or ...YouTubeStart of suggested clipEnd of suggested clipAnd along the bottom. Kind of like glue i want a good squeeze. Out. Here along this edge over here.MoreAnd along the bottom. Kind of like glue i want a good squeeze. Out. Here along this edge over here. Get a nice big caulk. Right there. And then my piece is ready to go again i just do the same process

Can you patch cement board 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.

How do you replace damaged Hardie board 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.

How do you fix fiber cement board?

4:498:25Fabricating and installing fiber cement boards - YouTubeYouTubeStart of suggested clipEnd of suggested clipTo reinforce the seams it's important to use alkali resistant tape and because backer boards don'tMoreTo reinforce the seams it's important to use alkali resistant tape and because backer boards don't have a tapered edge I hold off installing the tape until each seam is about to be covered with tile

Can you repair Hardie plank siding?

Though it is a tough wearing product, the surface of the siding can sometimes be damaged during installation, by unusual wear or by impact. The James Hardie company, makers of HardiePlank, recommends the use of a cement patch product made of an acrylic mortar compound for patching their siding products.

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.

How much does it cost to replace one piece of siding?

Less obvious damages may include loose siding, water damage or warping. Repairing physical damage—holes and cracks, as well as loose siding—costs between $100 and $150 and small leaks will be under $200 to patch....Types of Repair.Type of RepairCostLeaks$100 to $200Cracks$50 to $150Holes$50 to $1005 more rows•Feb 17, 2022

Why does fiber cement siding crack?

Fiber cement planks are floppy until secured on the wall and holding only in the middle or transporting over a shoulder will cause a dramatic sag at both ends. The stress can cause a crack at the center of a board.

How do you fix cement board cladding?

3:397:58James Hardie HardiePlank® cladding installation video - YouTubeYouTubeStart of suggested clipEnd of suggested clipPut your first two marks in here fix. It and then put your fixing nails in all the way down at everyMorePut your first two marks in here fix. It and then put your fixing nails in all the way down at every 400 millimetres.

What kind of caulk do you use on Hardie board siding?

Manufacturers' Caulk and Sealant Recommendation Sheet S-100B Caulks and Sealants: James Hardie recommends the use of caulks and sealants that remain permanently flexible.

How do you repair cement board joints?

1:586:34How to tape Cement Board Joints - YouTubeYouTubeStart of suggested clipEnd of suggested clipOut. The videos that I seen they always use the mesh tape that has the adhesive on one side andMoreOut. The videos that I seen they always use the mesh tape that has the adhesive on one side and since that's all they could find that's what I decided to use.

How do you fix a hole in a Hardiflex?

0:312:23How to Repair Drywall - How to Fix a Hole in the Wall - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing drywall screws I supported the wood with a screw on the top and the bottom now insert the newMoreUsing drywall screws I supported the wood with a screw on the top and the bottom now insert the new section and secure it with a couple of screws in our case I added a third screw to the stud.

Does caulking Hardie board void the warranty?

These such areas are called “field butt joints.” In the case of James Hardie's Color Plus siding, which has a pro-rated 15-year warranty, using caulk at field butt joints will flat out void your warranty!

How do you repair broken cement siding?

2:0910:22How To Replace Damaged Siding | THE HANDYMAN - YouTubeYouTubeStart of suggested clipEnd of suggested clipTake your hammer little rapey from behind your pry bar. You can pry both of them at the same time.MoreTake your hammer little rapey from behind your pry bar. You can pry both of them at the same time. And you don't run out of angle.

How do I repair a cement board?

Cut out the area where the cement board has suffered damage. Attach the appropriate blade to the angle grinder. Push the blade down so that it will cut into the board and then pull the trigger. Hold the grinder with both hands and cut down into the board.

What is a hardie backer?

HardieBacker is a cement board available for use with ceramic tile installations and is a very durable underlayment. However, accidents can happen and if for some reason your Hardie board has suffered damage you need to repair the offending section to ensure the structural stability of the overall tile installation.

How long does it take to dry before installing tile?

Let the repair dry for a minimum of 24 hours before installing tile on top of it.

What Kind of Paint Can I Use on a Hardie Board?

Hardie boards are usually long-lasting and will not need fresh paint for an extended period. But for maintenance reasons, the right choice of paint and the proper application will go a long way to keep the paint fresh for almost up to twenty years.

HOW TO FIX PEELING PAINT?

As mentioned before, there could be several reasons why you're facing problems regarding the paint peeling off your exterior.

How To Repair Peeling Paint on Hardie Board? (A Step-By-Step Guide)

Since we have already discussed in length the causes of paint peeling on Hardie boards, let us take some time to devote this next bit entirely to solving this problem.

The Best Paints for Hardie Boards

Now that you know how to fix peeling paint on Hardie boards let’s get down to two of the best products to use on Hardie boards or fiber cement sidings.

Why does my siding rot?

Water from rain or sprinklers can damage hardboard and wood siding over time , causing it to rot or deteriorate. This usually occurs on the bottom rows of siding near the ground, or on siding that adjoins a roof or chimney.

What is fiber cement siding?

Fiber cement is usually blind-nailed, which means the nails go in the top edge of each piece, so the next row above it covers the fasteners. When it’s painted the new siding looks as good as the old, it just lasts a lot longer.

Can you replace lap siding?

Replacement is the only option for rotted, hardboard lap siding. However, you don’t have to replace it all, just the damaged pieces, which are usually near the ground or adjacent roofing. First, pry the damaged pieces off the wall using a crowbar.

Can you pull down the bottom of a siding board?

As the bottom of each board comes out, you can pull down on one end of it and free it from the nails going through it and the row above. Occasionally there will be nails left behind under the last good row of old siding, which have to be cut or removed so the new siding can go in.

Step 1

Brush away any chipped paint, small loose pieces of siding or anything else that mars the plane of the siding.

Step 2

Sand over the damaged area lightly but thoroughly with a medium-grit sandpaper to smooth any jagged edges and create an easy grip surface for the patch product.

Step 3

Apply the patch product to the damaged area with the flexible putty knife to fill in any indentations or holes.

Step 4

Hold the knife roughly perpendicular to the siding patch to finish the surface of the patch, and taper out the edges of the mortar patch blending it into the surrounding siding.

Step 5

Allow the patch material to dry thoroughly according to the recommendations on the product label.

Step 6

Sand the dried patch material lightly with a fine-grit sandpaper to smooth out the surface and blend the edges of the patch with the surrounding siding. Feel along the patch to identify any bumps that need to be smoothed out with further sanding.

Step 7

Wipe or brush away any of the sanding grit with a clean, dry, lint-free rag or a clean and dry brush, leaving a smooth surface.

How to make cementitious patching compound?

Mix the latex-modified cementitious patching compound in a small bucket, according to the manufacturer's instructions. Blend the compound until its consistency is stiff enough to hold on the tip of a putty knife.

How long does it take for a sanding compound to cure?

Wait three hours for the compound to cure. Keep the surface of the compound moist by spraying it with a mist of water if it begins to dry. Allow the repaired area to sit for 24 hours.

Is fiber cement siding good for a home?

Fiber-cement siding is an attractive alternative for homeowners who want the look of wood siding with the rot resistance, fire resistance and durability of cement. Fiber-cement siding is low-cost for its rated lifespan and is easy to maintain when compared with other siding choices.

Can fiber cement cracks be repaired?

No matter how durable fiber-cement siding is, though, cracks can still occur. Small cracks can be repaired with a special patching compound before they cause breaks, saving you the work of removing and replacing a damaged panel. Adding a fresh coat of paint over the patched area will blend the repair into the surrounding siding.

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