> Rotten Decking
If your home has a roof leak that you see inside, your roof decking is already being damaged. As shingles are installed, the nails penetrate the wood. If water is added to that mix, the decking can deteriorate from the inside out. This leads to weak spots that can literally collapse as you step on them, causing a risk of falling, even death. Trained roofers know how to walk on a roof, testing their steps before they take them to ensure that the roof can handle the weight they are about to place on it.