Standing water can form on flat and low-sloped roofs. It erodes the material over time and can lead to leaks. The resulting water damage can create a lot of problems with your commercial property. It’s crucial to recognize early signs so you contact a roofing contractor in time. Below is a helpful guide you can use.

How to Tell If Your Roof Is Leaking

1. Mold Growth

Mold requires moisture to grow. You may have a leak if it’s forming on crevices between roofing flashing, and worse, inside your attic. Spores spread quickly through HVAC systems and can cause sneezing, stuffy nose, and other flu-like symptoms. 

Mold only requires a small drip. Check insulation and materials around the spores for dampness. A roofing contractor can then pinpoint the exact spot and patch it before the mold colony grows.

2. Cracked Collars & Vents

Ventilation pipes, chimneys, and other exhaust points all have a protective collar or flange at the base to prevent leaks. Rust is another early system of water damage. These materials can erode and break from stress and water exposure. Rain will eventually wear down the roofing material beneath and cause a leak.

Press the seam around the vent. Water may be getting in if it’s loose or peeling. The same goes for roof hatches, skylights, and any other breaks in the roofing. Flat roofs require a special water-resistant seal to keep moisture out. Reseal yours every five years. If you suspect leaks and are overdue, schedule an inspection.

3. Rings of Dirt

Standing water will form around a small leak after heavy rain. When it dries, there will be small circles of dirt and debris left behind. They’ll form concentric circles around the hole, getting larger as they move away.

Look for this symptom around your drains as well. It means they’re clogged and should be cleaned. Regularly clearing debris from your flat roof, as well as cleaning the drain, will ensure rainwater can’t pool and wear down the seal.

Contact Four Seasons Roofing and Siding if you’re looking for a roofing contractor in the Greater Philadelphia area. These professionals have over 20 years of roofing experience and specialize in flat and low-sloped roofing. They handle roof installation and repairs for residential clients throughout the area, which you can learn about on their website. Call (215) 743-3319 to schedule an inspection.