How Long Does Signage Last?

Posted November 4, 2021

Local weather patterns have a damaging effect on the lifespans of exterior signs. Naturally, outdoor signs are constantly exposed to changes in temperature as well as to the various levels of precipitation, whether it is rain, sleet, snow, or hail.

Outdoor signs that are constantly exposed to severe shifts in weather are at risk for increased damage over time, which can reduce its functional lifespan. Fortunately, an exterior business sign can be protected, and serve its purpose for many years to come.


Wood signs that are properly and routinely maintained can serve their purpose for up to a decade. However, in adverse weather conditions, outdoor wooden signs are known to degrade quickly. Roof runoff and sprinklers also decrease the lifespan of an exterior wood sign.

Extend the lifespan of wooden signs by sealing the wood with laminate. Or, apply more than one coat of water repellant. After heavy rain or snowfall, inspect the sign for mildew and mold growth. Clean the sign immediately if either appear.


Digitally printed banners are known to endure for two to three years. Wind, however, strains the banners, potentially ripping them apart. Unsecured banners can fly away. Vinyl banners perform for three or more years while surviving harsh wind and rain. 

Protect banners from wind exposure by installing them against a solid surface. Bungee cords are recommended for tying banners since they offer elasticity and stretch during high winds. Tighten the lines regularly to produce higher tensions, which reduce the chances of ripping.


Outdoor painted PVC (plastic)signs perform for five to seven years on average. The frequency and quality of maintenance, the sign’s thickness and installation method affect its lifespan. The application of UV coatings can help to extend the lifespan of plastic business signs.


Aluminum business signs are popular, since the materials do not rust. Plus, aluminum is lightweight and can be uniquely shaped to suit any design. A business owner can successfully use an outdoor aluminum sign for seven to 10 years before it starts to degrade.

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