Roof Decking: When to Replace and How to Spot the Signs

Image of commercial flat roof decking built by Canuck Roofing.

Alright, folks, let’s talk about something that doesn’t always get the attention it deserves but plays a crucial role in keeping our roofs strong and sturdy: the decking. You see, your roof decking is like the backbone of your roof, supporting everything above it. Over time, though, it can wear down and compromise the integrity of your entire roof. In this guide, we’ll break it down for you, sharing when it’s time to replace your roof decking and how to spot the signs. So grab your hard hat, let’s dive in!

1. Regular Maintenance and Inspections

First things first, if you want to stay ahead of any potential roof decking issues, regular maintenance and inspections are key. It’s like giving your roof a check-up, just like you’d do with your truck or machinery. Get up there and take a good look around, paying attention to any sagging or signs of water damage. Keep an eye out for loose or deteriorating decking material too.

2. Age of the Roof

Now, let’s talk about the age factor. Roof decking doesn’t last forever, just like the tread on your work boots. Over time, it can start to wear out, especially if it’s exposed to harsh weather conditions or poor ventilation. As a rule of thumb, if your roof decking is over 20-30 years old, it’s likely time to start considering a replacement. Don’t ignore the signs just because you’re trying to squeeze a few more years out of it.

3. Roof Leaks and Water Damage

When it comes to spotting the signs of worn-out decking, keep a close eye on any roof leaks or water damage inside your home or building. You know, those pesky drips that keep interrupting your work or making a mess of your drywall. If you’re experiencing frequent leaks or notice stains on your ceiling or walls, it’s a clear indication that your roof decking is compromised. Don’t wait for the problem to escalate; take action before it becomes a bigger headache.

4. Visible Sagging or Bouncing

Alright, let’s put those observational skills to the test. Get up on the roof, my friends, and pay attention to any visible sagging or bouncing. If your roof feels spongy or gives a little too much under your weight, that’s a sign that the decking is weakened and needs attention. Remember, we want a solid foundation up there, not a trampoline.

5. Rot and Decay

You know how wood gets after a while, right? It starts to rot and decay. Your roof decking is no different. If you spot signs of rot, decay, or even mold on the decking boards, it’s time to get serious about a replacement. Don’t try to patch it up with some quick fixes or duct tape. Your roof needs a solid foundation to withstand the elements and keep you dry.

6. Professional Roof Inspection

When in doubt, call in the professionals at Canuck Roofing. Look, we know you’re handy and can tackle many tasks yourself, but when it comes to your roof, it’s better to be safe than sorry. Our qualified roofers can provide a professional roof inspection and give you a clear assessment of your decking’s condition. They’ll climb up there, take a good look around, and provide expert advice on whether a replacement is necessary.


So, my hardworking friends, that’s the lowdown on roof decking replacement and how to know when it’s time. Remember, regular maintenance, keeping an eye out for leaks and water damage, checking for sagging or bouncing, and spotting signs of rot or decay are all crucial in determining the health of your decking. If you have any questions or need help with your roofing in Burnaby, give us a call! We’re always happy to help.