So the only reason that you would want to repair your metal roof is because it has not been installed correctly and there is a chance that a decent roof repair will work – and save you the cost of a new roof.
There are some poorly installed roofs that will not respond to a roof repair.
The roof in the picture above that has been repaired (unsuccessfully) and it was a complete waste of time and money. This roof is not a candidate for a metal roof repair. It should have been replaced by a more suitable roof and the pitch also increased.
Sometimes, roofers ask too much of a complicated roof.
In the example below, multiple skylights, vents and roof equipment make a decent roof design a real challenge. And this roofer has neglected all the fundamentals of roof design and come up with a roof that is bound to leak.
This metal roof looks like a candidate for a roof replacement rather that a roof repair….. because it would be just about impossible to guarantee the longevity of a roof repair on this poor roof.
The most common faults on metal roofs that can be remedied by decent roof repairs are:
Corrugated roofs are almost foolproof when installed on a pitch greater than 10 degrees and nothing much can go wrong. Except if there are end laps.
Some roofers do not know to lay a roof with end laps and there is a slim chance that it will leak. But on steep corrugated roofs, even a faulty end lap will not have a chance to leak.
Flat roofs have much less tolerance to poor workmanship during the installation phase and tend to be prone to more leaks.
There are a lot of resources on this website if you want to do a bit of research.
You will have a better idea after you have explored a bit.
When you are getting serious about getting a professional opinion about the ‘fixability’ of your metal roof, it is best to book an obligation FREE inspection.