Shingles on the Ground
If you ever walk out of your house to find shingles on the ground, your roof is obviously in need of repair. Shingles don't belong on the ground — they should be on your roof. Wherever the shingles you see came from is no longer protected and ought to be repaired as quickly as possible.

Bent Shingles on the Roof

After a heavy windstorm, go outside and take a look at your roof. You may have to walk across the street or to the end of your yard to get a good view. Check to see whether any shingles are bent or look different from the others. It's sometimes difficult to actually see if shingles are bent, but any that don't look uniform likely have been.
If your eyesight isn't good enough to see the shingles on your roof, take a picture with a digital camera — you can then zoom in to check for damage. Any pictures you take may also prove helpful if you have to file an insurance claim.
Bent shingles should be replaced. Even if your roof appears to still be covered by shingles, they won't properly drain water off your roof if they're bent.
Shingles Curling at the Edges
Sometimes shingles don't bend, but they begin to curl up at the edges. Curling can be caused by several issues, including improper installation, old age and heat in an attic.
If your roof looks like it's developing ripples or waves, the shingles are likely beginning to wear out and curl. You should have them replaced as soon as you can to ensure that your roof continues shedding water like it's supposed to.
Water Pooling on Your Roof
Water shouldn't pool on your roof because it may seep through cracks and into the underlying wood that supports your home's roof.
Water may pool if your roof is damaged and not funneling water properly (e.g. if your shingles are damaged), or if your roof isn't properly designed. In either case, pools of water are a sign that your roof isn't working properly. The issue needs to be identified and addressed.
A Tree Branch on Your Roof
A tree branch on your roof is never a good sign. Large tree branches can cause a significant amount of damage when they fall on homes, and even small branches may puncture and damage your shingles.
Should you ever see a tree branch on your home's roof or notice one next to your house, have a professional roofer check for damage. Even if you don't see damage from the ground, there may be minor harm that should be addressed. Neglecting to fix it could result in water damage from rain or snow that seeps below the shingles.
Leaks in Your Ceiling
Leaks in your home's ceiling are the clearest sign that your roof is badly damaged and letting water through. If you notice water damage on the inside of your house, have your roof immediately repaired before the damage becomes any worse. You'll also need to address the interior damage, but the first step is stopping water from coming in by repairing your roof.
If you notice any of these issues with your home's roof, contact the experts at Johnson Roofing Co. to schedule a free consultation and get your roof repaired.