When do I need to replace my commercial roof?
Published On:  May 3, 2022
Camco Roofing Ltd. - Commercial Roofing, Flat Roofing, Roof Leaks, Roof Maintenance, Roof Installation

Commercial roofs are very durable and long lasting.   Commercial roofs typically last between 20-30 years before they need to be replaced.  Commercial roofs do require long term maintenance to achieve their maximum lifespan, however.

While repair is often the best option during regular roof maintenance, there are several signs that start to occur as your roof ages that indicate that replacement, rather than repair, is the better option.

Below are 5 major signs that indicate you may be better off replacing your commercial or flat roof rather than repair it:

    1. Your roof is old

If your commercial roof is over 25 years old and showing signs of wear and tear or damage, it may be time for roof replacement. The kind of commercial roof that you have installed will determine its maximum lifespan.    If you have performed regular roof maintenance and repair, it will maximize the lifespan of your commercial roof.  Nevertheless, once your roof is over 25 years of age and showing signs of damage or failure it might be a good time to replace the roof.

2. Low Spots and water pooling

Are there low spots on your commercial roof?   Do you have a lot of water pooling?

Depending on severity and cause, these issues may be able to be repaired.   However, in severe cases it can point to roof failure and necessitate roof replacement.

    1. Damage from the elements

Are there signs of hail or wind damage to the roof? Depending on severity, some damage can be repaired.   If there is extensive damage to the roof membrane, its possible roof replacement might be necessary.

4. Damaged flashing

Flashing diverts water away from penetrations in the roof such as chimneys, skylights, vents, etc.  If the flashing gets damaged, water can begin to damage the roof.  If leaks from damaged flashing are not caught in time, roof replacement may become necessary.

Regular roof maintenance can catch these problems early so that the roof flashing can be repaired rather than requiring an expensive roof replacement.

5. Holes or tears in the roof membrane

If there are a lot of holes or large tears in the roof membrane, it may be less costly to replace the roof rather than repair it.

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