If your roof is full of moss and algae sags or appears decrepit it sends a signal that your home hasn t been kept up.
Reasons to replace good roof.
This is because neglected roofs often breed damage on a structural level trapped moisture can rot support beams and grow mold within your ceiling and this damage has to be taken care of before a new roof can go on the house.
If the roof is in good shape a potential buyer can assume the rest of the house has been tended to with care.
It costs more to rip off old shingles and replace them than it does to just shingle over the existing layer.
Shingles buckled or curling.
A good roof enhances your home s curb appeal one factor in home value.
If you ve never had your roof replaced now might be a good time to get it examined by a professional.
A droopy sagging roof is one that surely needs replacing before further damage occurs to your home.
What s more when it comes time to replace a roof one that s been neglected will be far more expensive.
The trouble with a wind damaged roof is that the exposed spots on the roof can be difficult to detect especially if the shingles have been lifted.
How many layers of shingles are currently on your roof.
In this case a roof replacement is a better value.
However building codes prohibit you from having more than two layers of shingles on your home.