Have you ever looked up when pulling into the driveway and seen random bumps on your roof? On the other hand, what about long raised sections systematically lifting up all over your roof? If so, you could have a major problem!
What causes bumps on your roof?
Lets start with the small random bumps on your roof. Multiple things could cause these small raised sections. Most commonly know as nail pops, these areas are caused by either a roofing nail not being driven all of the way in or one that gets driven in side ways and will hold the shingle up just slightly.
On the other hand what about the long raised up sections that seem to be showing up systematically on your roof? This is a easy problem to diagnose, but not very easy to fix. The fix on this is something that can be very intrusive. However, we will dive into that later. These long raised up sections are from improperly nailed roof decking. If your home has plywood decking below your shingles and the plywood was not nailed properly. In time the decking will start to warp and curl on the ends causing these raised sections.
How to fix bumps on your roof
Small areas otherwise known as nail pops can be easily fixed by a homeowner if they can safely do so. In most cases, a simple hammer on the nail will take care of the problem. However, if your shingles are sealed to the point where you cannot safely pull them apart without tearing them then you may need the help of a professional to take care of the problem.
If you are fortunate to still be under your roof warranty this is something that will be covered under labor warranties. If not depending on how many nail pops you have on your home you may have to shell out a few hundred dollars to have a company come in and fix the problem.
What if you are one of the unlucky ones that has the problem of buckling plywood? This is most likely something you will have to consult a professional contractor on. It can be a possible easy fix, but you would have to go to every raised section and drive screws into the decking to try to pull it straight back to the rafters. However, if you put the screws through the shingles then you will have the perfect storm for leaks all over your roof. Even if you put the screws through the lower layer of shingles, you could great the opportunity for a leak.
The only way to properly fix this is during the full replacement of the roof. At that time, a contractor can address the raised decking and if needed replace any decking that has warped beyond repair.
Regardless of small bumps or larger raised ridges along your roofline, if you have a steeper pitched roof you should contact a professional contractor. It is much safer and can take care of the problem without having to leave the comfort of flat ground. Yes, it may cost you a few dollars but at least you know the work will be done right and done the first time.