Add in the every 8 foot ripple and yep that would be the sheathing seam buckling.
Ripple in roof.
It s a lot more expensive of course to take the old shingles down prior to installing the new yet executing so will certainly surely assistance reduce the possibilities of something adore this happening.
Ripples or waves on the roof surface are a sure sign that the shingles or decking has probably buckled.
First of all all agree that theinstallation of a roof with ripples bumps is defective.
Ripples can also expose the wooden portions of the roof to moisture that could lead to deterioration as well as rotting.
This will shorten roof s life.
A photo and year make of rv would be helpful.
If the shingles are lifted too much preventing them for sealing or creating a space for wind to blow beneath you risk wind driven rain and or shingle uplift.
If your roof has ripples you should be concerned.
Rippled shingles can quickly over time lead to a leaking roof.
Roofs buckle because either the roofing underlayment has wrinkled or the wood deck itself has shifted for some reason.
Yep something is wrong.
Usually a ripple is the glue not holding the rubber down.
Occasionally the buckling is caused by poor workmanship wrong materials or possibly by a problem with the structure itself.
Cause could be age or water slowly getting between roof and rubber or excessive heat desert cooking it or original gule job was thin there ect ect.
Thanks rick and bradley that picture and that side of the roof appear to be a bit of an illusion compared to other roof pictures of the house i have.
The ripple itself might not be an issue but a leak causing it would.
Follow the shingle line and it is a vertical ripple not angled as i thought.