Top Differences: Re-Roofing vs. Roof Replacement

One of the biggest investments for any building owner is roofing. Keeping this in perfect shape is a number one concern. If your roof isn’t in good condition, don’t put off improvement options. And note that maintenance is not only needed in rainy places but even in dryer areas like Tucson

But, the big question when upgrading your roofing system comes down to whether to choose reroofing or roof replacement.

What’s the difference?

Understanding the difference will help you determine the best option to go with.


This simply refers to layering one set of shingles over a set of existing shingles. It can only be done once, so if you already have two layers of roofing in place, reroofing is not an option.  Reroofing is quicker and less expensive than a full roof replacement.

Other factors that can rule out reroofing are;

  • Your roof material
  • The pitch of your roof
  • Major water damages
  • Soggy shingles or missing shingles

Costs of re-roofing vary based on material, the slope, roof accessibility, labor, and where you live.

Finally, a reroof doesn’t last as long as a roof replacement. In case you’re unsure about reroofing, you may want to contact your commercial roofing contractor if it’s the best option. Your contractor will also ensure that your reroofing project complies with roof installation codes, which will provide you with the most satisfaction and peace of mind.


A roof replacement involves tearing off everything on the roof down to the deck, then putting on new felt paper and shingles. A roof replacement will address all your roofing problems rather than simply covering up any damage as with reroofing. It can be done even when reroofing is not an option.

Although commercial roof replacement can be costly, it will save you money in the long run. This is because it allows you to identify early signs of sagging and rot caused by water damage to the deck.

Getting a roof replacement is always the safer and longer-lasting option. But, making the choice between re-roofing or roof replacement is entirely up to you. Hopefully knowing these differences will help you out.