Roof damage comes in all forms. Know what to look for.
Check your attic after severe weather. A leak could mean some shingles are damaged, the underlayment — a protective barrier between your shingles and the plywood of your roof — has failed, or flashing — the material that seals joints on your roof — has deteriorated.
Whether you have leaks from outside the house or moisture trapped inside it can cause stains and possibly mold or mildew.
If your house has poor ventilation this may cause moisture to get trapped, which may cause exterior paint to peel and blister.
Poor ventilation and moisture can also cause decay of sheathing, which is also called decking. Decking is the layer of plywood that forms the foundation of your roof. Your sheathing may be damaged if you notice a sagging ceiling, broken gutters, leaks or missing patches of shingles.
Although dark stains may look like dirt, it most likely is moss, lichen or blue-green algae. This may not require a new roof, but you will need to replace your shingles. Ask us about StainGuard® and StainGuard Plus® which are available with GAF shingles.
If you notice your shingles are curled, become cracked or are falling off, this means your shingles have reached the end of their lifecycle and it is time for a new roof.