Do I need a new roof? - Key Danger Signs
What roof damage looks like and how to determine if you need a roof repair or replacement.
What roof damage looks like and how to determine if you need a roof repair or replacement.
If your roof isn't very old and you spot a few loose or damaged shingles, you may be able to just replace them. But for broader or more extensive damage, it may be time for a new roof. The key is a regular roof inspection so you know what's going on up there.
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.
It may look like dirt, but dark stains on your shingles may be moss, lichen, or blue-green algae. This may not require a new roof, but if and when you do replace your shingles, ask for StainGuard and StainGuard Plus protection, which are available on many GAF shingles.
Poor ventilation may cause moisture to get trapped in your house, which may cause exterior paint to peel and blister.
Leaks from outside the house or moisture trapped inside it can cause stains and possibly mold or mildew.
Another issue with poor ventilation and moisture in your layers of roofing materials is the decay of sheathing also called decking which is the layer of plywood that forms the foundation of your roof. If you notice a sagging ceiling, broken gutters, leaks, or missing patches of shingles, your sheathing may be damaged.
When shingles reach the end of their useful life, you may notice they fall off or become cracked, brittle, or curled, which means it may be time for a new roof.