How To Repair And Maintain Hardie Plank Siding

Keep Your Prescott Home Looking Good With These Repair And Maintenance Tips

House with Hardie plank siding

You can find out the common problems Hardie plank siding has. You can also learn how to repair Hardie plank siding and more. There’s a video on it too!

Read all about it in the post below-

What Is Happening?!

“The sides of our house are falling apart!”

Jamie walks around to the side of the house where Karen is. “You’re right! It’s lifting up in this area over here and there’s a crack right there.”

Karen huffs angrily. “Looks like we need to hire someone to come fix our Hardie board siding.” Jamie looks at her curiously. “I thought it was fiber cement siding.” Turns out, they’re the same thing.

“Well, either way we still need to fix it or have someone fix it,” Jamie says. He gets out his phone, goes to Google and types in ‘how to repair Hardie plank siding’.

Here is what he finds (watch the video and read about it)-

History of Hardie Plank Siding

“Oooo I love history!”

Founded in Australia, the James Hardie Company has spent over a century engineering and manufacturing building products that last. 

Since the 1980s builders have been able to use Hardie plank and other products to help homeowners enjoy the beauty of their home. The James Hardie Company created its original siding planks to look like wood products that had been in use for decades, but with lower maintenance.

The cement material used in the planks stands up to water in wet climates, as well as dry, hot, or cold environments.

Common Problems With Hardie Plank Siding

“Looks like there are 4 problems Hardie plank siding can have.”

Problems with Hardie plank siding

It all starts with the installation. If someone installs the fiber cement siding incorrectly then all kinds of problems can happen. The most common one is that it’ll drop a few inches. It may even fall off altogether!

“It looks like some of it may be on the way to doing just that,” Karen points out.

Fiber cement siding can also shrink, crack, or lift off the house. These usually happen because of incorrect installation or weather and age.

“Ok, so how do we fix it?” Karen asks. Jamie scrolls down to find out.

Fixing Hardie Plank Siding

“Looks like they have ways to repair all these Hardie plank siding problems.”

Cracked Hardie plank siding

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.

“And it may take time to see it appear, so you won’t know right away,” Jamie reads.

Hardie plank siding that has separated due to shrinking

When siding shrinks it causes a gap to form between the planks. The best way to fix these gaps is to clean the joint and then patch it with caulk. This way water and other elements can’t go past the patch, between or behind the planks, and cause further damage.

“This can happen again after caulking. If it does, repeat the process, clean the joint, and add more caulk to the gap,” Karen reads.

Hardie plank siding that has started lifting

Siding planks commonly lift off of a home if they have been installed incorrectly. This happens when someone uses countersunk screws or when a nail used to hold the plank down was not driven into a stud.

Other times intense wind or weather can cause the exterior siding to come loose.

The best way to repair this is by first pre-drilling a hole with the appropriate size masonry drill bit. Then, drive a ring shank nail through the siding and preferably into a stud behind it. This ensures the siding is securely anchored to the home and will not be damaged further.

“Looks like we know how to repair Hardie plank siding now,” Jamie says happily. “Ok, but how about maintaining it so it lasts longer?” Karen asks.

Proper Hardie Plank Siding Maintenance

  • Clean dirt and other debris off the outside of your house with a garden hose once or twice a year. You can use a soft cloth or a brush to clean the planks in the direction they run.
  • Trim trees and other plants away from your home. This is so they don’t prematurely wear areas of your siding material down.
  • Install gutters (if you don’t have them already) to route water away from your siding. Keep them clear so water doesn’t build up in certain areas and cause damage.
  • Repaint your Hardie plank siding every 8-10 years to protect it too.

More Resources For You

“Aaannndd now we know how to care for and fix our fiber cement siding!” Jamie says happily. “Well, I don’t think we’ve done enough yet. While we’re on the subject, let’s find out more,” Karen says.