A well-maintained metal roof can last for anywhere between 40 and 70 years. However, like any material, metal can break down after extended use and exposure to the elements. Therefore, you should monitor your metal roofing to ensure that it's still functioning properly. Here are a few signs that indicate it's time to get a new metal roof for your pole barn. 

3 Indications That You Need New Metal Roofing

1. Loose Panels

Metal roofing is installed in panels. These sheets sit on top of an underlayment, and the two components work together to prevent moisture from entering your home. Severe storms, frequent winds, and time can degrade your panels and weaken the screws that hold the panels in place. 

In some cases, you can replace individual panels. However, if the roof is old and the panels are degraded, it may be time to overhaul the entire structure. 

2. Rust

Rust is a major concern for any homeowner with a metal roof. This type of roofing has a galvanized layer that's been treated with zinc to prevent corrosion. Without a strong galvanized layer, moisture can affect your metal roofing and lead to rust or corrosion. 

Once the metal corrodes, water can seep into the underlayment and cause lasting damage. If you notice rust, you'll want to address the problem immediately to prevent problems. 

3. Leaking 

Any sort of leak is a cause for alarm. If water enters your pole barn, it can cause cosmetic damage or lead to mold growth, which is dangerous and expensive to remediate. Metal roofing isn't immune to leaking, so you should regularly have a professional inspect the roof and underlayment to ensure that there aren't any vulnerable spots. 

In some cases, you may not notice any rust or damage on the panels, but you'll notice other signs that point to a leak. These could include water damage spots inside of the house, wet areas, or a musty smell. A roofer can evaluate your roof and help you determine if a replacement is necessary.

If you need a new metal roof for your pole barn, contact Greenview Metal. This trusted roofer has been in business for more than 20 years. They offer metal roofing, siding, and skylights for homes, barns, and outbuildings in Trempealeau County, WI. Request a quote by calling (715) 538-1325 or see what they offer online.