Here is a great do-it-yourself roof repair for your mobile home. This is especially good for old metal roofs.
Normally for mobile home roof repairs, you want to walk the roof and check for cracking and gaps where water can get in. This should be done every year, but at the very least every other year.
Get some caulking that is made for roof repairs, and get some of the roof repair material you can spread out to re-coat the roof.
Here is a video on just that type of coating:
You also should check the interior of your home to see where the leaks are and make sure you check the roof where the water is coming in and patch that area.
Again, if you do this consistently your roof will last a very long time.
