It's important that you have a new roof installed at your commercial facility when necessary. Neglecting to install a new roof could create a lot of issues for your company.

Leaks in an old roof could damage your equipment or inventory. Also, an old, sagging roof may create a safety hazard and a poor image for your company.

The following are five signs to look out for so that you know when it's time to install a new commercial roof on your facility:

The covering on the roof is starting to blister.

A roof covering can begin to blister over time because of moisture or ventilation issues. This is an especially common problem in asphalt shingle roofs. 

Blistering is unsightly and can lead to water damage because water can seep in underneath shingles that are coming up.

Blistering can also expose the asphalt in shingles to the sun. The UV rays from the sun can prematurely age shingles and lead to discoloration over time. 

The roof was initially installed more than 20 years ago.

The lifespan of a commercial roof will depend on what material the roof is made from. On average, you can expect a flat roof membrane to last around 20 years

Look into the typical lifespan of the roofing material with which your roof was constructed. Remember that the lifespan of a roof could be shorter in areas with a severe climate or in situations where proper roof maintenance hasn't been practiced through the years. 

There are depressions and sagging developing on the roof.

Sagging and the development of depressions in the surface of a roof are clear signs that it's time for a new installation. These signs indicate structural issues that could lead to safety hazards.

The roof is starting to look torn with alligator cracks.

Flat roofs that are commonly used in commercial facility construction are often prone to developing alligator cracks after years of exposure to harsh UV rays from the sun that dry out the roof surface. Alligator cracks can also be caused by freeze-thaw damage in areas with a cold climate.

Alligator cracks will only get larger as time goes on, so they are a sign that a roof is going to need to be replaced in the near future. 

There is pooling water that is starting to gather on the roof.

Pooling water is an indication that there are some depressions developing in the roof surface and that there are possibly some ventilation issues in an aging roof. 

Pooling water can lead to the development of leaks in a roof that will inevitably cause water damage on a facility's interior down the road. 

Contact a company like Mulligan Roofing for more information and assistance.