This results from an adhesion failure in the roof and the bubble can fill up with trapped air or water.
Signs flat roof needs replacing.
Extensive pooling of water.
If you find torn places in the moisture barrier and you have leakages coming into your home through the ceiling it is a sign that you need to replace the roof.
Similar to other materials flat roofs with asphalt expand and contract with changes in temperature and weather.
With time the roofing materials lose their elasticity causing cracks and bubbles on the roof s surface.
If you think you might need a new roof the first place to check isn t your home exterior it s your attic.
Adhesion failure bubbling and blistering.
If caught early enough this problem may be repairable.
Here are some signs that your flat roof should be replaced.
7 signs you need a new roof start inside.
If you have a tar and rock covered roof and the wind has blown off the tar paper and exposed the undercoat of the roofing you should also probably replace your roof.
It means that that roof has been damaged beyond the point of no return.
The largest issue with flat roofs is pooling.
Call a roofer for replacement.
The first sign that the flat roof needs replacement is when it is aging and nearing the end of the warranty period.
Keep an eye on your rooftop to make sure its in ship shape especially after heavy storms.