A rotting roof is caused by a variety of issues, whether it’s the high humidity levels in your attic, ventilation problems, or a leak in the roofing. Wet, covered wood is the perfect habitat for fungi to thrive, weakening the roof and causing structural damage to your home. Fortunately, there are signs to look for to avoid roof rot. If you notice any of the following, contact a roofer to discuss the next steps. 

How to Tell If Your Roof Is Rotting

1. Sagging 

The roof deck is what your shingles are attached to. Made from wood, the deck sits atop the frame and provides stability to the entire roofing system. 

Examine your roof from the street to see if it follows a straight line or if it dips. If it’s sunken or buckling, your roof’s integrity is likely compromised. In addition, when you’re in the attic, look for parts of the roof deck that are bowed in. To prevent the roof from caving in once more water collects, contact a professional immediately. 

2. Mold, Moss, & Algae

If there is standing water on your roof, an inspector may notice the presence of mold, moss, and algae. These green substances push shingles apart and leave a gap for water to leak through. If left unaddressed, standing water can infiltrate deep down into your roof, where it can rot the decking and frame. 

The presence of mold inside of your attic can also indicate a rotting roof. The insulation may look flat instead of fluffy, and there may be large black spots or wood rot on the walls. A strong mildew smell is a crucial indicator that there is persistent moisture in the air that is causing the rot. 

3. Damaged Shingles

One or two damaged shingles can easily be replaced by a roofer. However, if you notice that most of your shingles are cracked, chipped, curled, or otherwise damaged, your roof is weakened and is likely rotting. This is especially true if your roof is nearing the end of its lifespan.

Most asphalt roofs last about 20 years with the right maintenance, so it may be time for a replacement if it is nearing this point. 

It’s important to schedule yearly inspections with a professional roofer to detect the signs of roof rot early on. The team at David Perry Construction in Lincoln, AL, can inspect and diagnose problems with your roof to develop the best solution, whether you need an entire replacement or a few shingles repaired. Visit the website for a complete list of services, or get started with your free estimate by calling (205) 763-0815.