When Should You Replace Your Commercial Roof?

Commercial roof repair vs. replacement is a decision you should consider carefully. A roof is a major investment, so you will want to be sure you aren’t replacing a roof that still has a lot of life left in it. You’ll also need to consider whether you want to replace it with the same type of roof, or install a new type of roof system. One of the most important factors in this decision, however, is when to replace your roof. 

You Should Replace Your Roof When …

It Reaches the End of Its Lifespan

Each type of roof has a different lifespan, and you should be aware of how long your roof’s lifespan is supposed to be. You can research roof life expectancies and find out the general estimate for your building’s roof type. Here are some life expectancies for certain general flat roof types:

  • Asphalt Roof System: 20-25 years
  • Metal Roof System: 25-35 years
  • PVC Roof System: 25-35 years
  • TPO Roof System: 20-30 years
  • EPDM Rubber Roof: 20-25 years

And here are some life expectancies for very specific roof types:

  • PVC and TPO Single-Ply Roof: 20 years; the seams will last longer than the surface material 
  • Asphalt Built-Up Roofing: 20 Years; life-span really depends on the number of plies and quality of the asphalt.
  • Standing Seam Metal Roof: 20-30 years but shorter if exposed metal edges are subject to salt-air conditions where rusting can be accelerated.
  • Modified Bitumen Rolled Roof: 20-30 years; Depending on the type of asphalt modifier used and thickness of the membrane itself.
  • EPDM Rubber Roof: 12-15 years for the seams; the membrane itself should last about 20 years

If you have one of these roof types on your building and it’s reaching the end of that listed life expectancy, you should definitely consider commercial roof replacement. Why? Because if you don’t, your roof will continue to deteriorate and the repairs will become more and more expensive.  Reroofing may be the best solution. 

Repair Costs Grow Greater Than Replacement Costs

Here’s a good rule of thumb for building systems that you can use when considering roof replacement vs. repairs: When repair costs are more than 50% of the cost of a new system, it’s time to replace that system. This is because your current commercial roofing system no longer performs in a cost-effective manner. The roofing materials may be worn down, with worn out seams, splitting or blistering membranes. As more of these problems pile up, it becomes more cost-effective to invest in a new commercial roof installation, instead of remaining loyal to the existing roof.

Your Current Roof Does Not Fit Into Your Future Building Plans

If you have future plans for your commercial building that include roof installations or tenant improvement work, you should have your roof inspected. If the roofing consultant or inspector finds that your roof is not in a condition to handle these additional installations, you should consider full or partial reroofing. Roofing projects like solar panel installation can help your building run more efficiently, but should never be installed on a failing roof system.  Know your current roof conditions and how best to prioritize those projects for your existing roof. 

Roof Replacement for Your Commercial Building

At C.I. Services, we use our roofing industry expertise to replace your flat roof, and we can provide a quality reroofing project for every commercial building you own. If you are interested in our roof replacement services, or if you have any questions about how to extend the life of your current commercial roof system, contact us today.