Noticing Long Bumps Or Ridges On Your Roofing?

20 January 2022
 Categories: , Blog


If you own a house that has developed noticeable long bumps or ridges on the roofing, it's important that you act quickly in order to prevent any further damage from occurring. Typically, ridges form on roofing due to moisture from inside the house getting into the roofing materials. Here's what you need to know to solve the problem and what can be done to prevent it from happening again in the future. 

Damage from Moisture Getting Into The Roofing Materials

Moisture from inside your home can get into the roofing materials and cause long bumps or ridges to form if the roofing was not installed properly. The ridges have formed because the roofing felt underneath the shingles has expanded when it got damp. This expansion pushed up on your roofing shingles and caused noticeable ridges or bumps on the roof. The felt did not flatten as it dried so it will always be warped.

Also, the moisture that has caused the felt to expand will eventually cause rot in the roof decking, which can seriously impact the structural integrity of your roof. Rotting decking can develop fungal growth which will continually eat away at the decking until the fungal growth is destroyed. Should your roofing materials have signs of rot, the best thing you can do is to hire a roofing contractor to replace the entire roof, including all of the underlying structures. 

Moisture From The Inside Of The Home

When people think of leaky roofing, they think of rain and snow. However, as you just learned, moisture from the inside of the home can also compromise the integrity of the roofing. This can happen if the roof panels weren't sealed properly when they were installed. The only way to tell for certain that this is the cause of your ridges is to hire a roofing contractor to inspect the roof to try to ascertain where moisture leaked into the felt. 

Moisture from showering and cooking tends to rise into the attic where it can accumulate, particularly if there is inadequate ventilation. Therefore, ask your roofing contractor to also inspect the attic ventilation to see if it's sufficient enough to clear out moisture from the attic to prevent this type of thing from happening again in the future. More than likely, if your roofing has felt and decking that has been compromised from moisture, your roofing contractor will recommend a complete overhaul of your roofing and attic ventilation at the same time. Contact a company like P & G Renovations Roofing for more information.