One of the most expensive home repairs is installing a new roof. Determining whether your home needs a new roof or roof repair can be confusing. There are several determining factors which can guide homeowners. Consulting with a roofing contractor can also help you determine if your roof needs to be repaired or a complete roof replacement.
The Age of the Roof
Most asphalt shingled roofs last about 15-20 years. Nowadays, there are new types of GAF/ELK asphalt roof shingles which will last longer (if maintained well). If your roof has numerous leaks, several damaged areas and is close to 15 years old, then you will likely need to replace it.
More Than One Roof Layer
If your roof is leaking and already has two layers, you will need a complete new roof (In some northern states roofs may have multiple layers, but in Florida you can only have a two layers of shingles on your roof). Roofers refer to this as a complete tear-off. All the layers are torn off and new wood roof framing is installed where rotted wood is located.
Other Signs That an Older Roof May Need Replacement:
Missing or Torn Shingles
Torn, damaged or missing shingles are often a sign of other roof problems. Peeling shingles could be caused by poor roof ventilation. Poor roof ventilation results in warm air escaping through the roof. The warm air can lead to moisture under the shingles and cause them to peel. Mold growth or black spots are also a sign of a moisture problem. Before considering a new roof, make sure that you have enough intake and outtake roof and attic vents.
Condition of Interior Walls
The condition of the interior walls that touch the roof can give many clues about what is going on up on top of the roof. If you notice a significant loss of paint and heavy moisture marks on your walls (and ceilings), then there could be some serious leaks originating on the roof.
Extreme Weather Conditions
Tornadoes and hurricanes can cause roof damage that cannot be repaired. Structural damage to the roof cannot always be seen. A professional roofer (with experience in repairing and replacing weather damaged roofs) can help determine if you need a new roof.