Ripple In Roof

Yep something is wrong.

Ripple in roof.

Ripples or waves on the roof surface are a sure sign that the shingles or decking has probably buckled. Are there any other negative impacts. First of all all agree that theinstallation of a roof with ripples bumps is defective. This could be a sign of a bigger problem in the future.

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. Roofs buckle because either the roofing underlayment has wrinkled or the wood deck itself has shifted for some reason. Usually a ripple is the glue not holding the rubber down. Follow the shingle line and it is a vertical ripple not angled as i thought.

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. Ripples can also expose the wooden portions of the roof to moisture that could lead to deterioration as well as rotting. Rippled shingles can quickly over time lead to a leaking roof. Add in the every 8 foot ripple and yep that would be the sheathing seam buckling.

Occasionally the buckling is caused by poor workmanship wrong materials or possibly by a problem with the structure itself. The imperfections this creates in your roof are just magnified as soon as you place yet another layer on top of that along with the predictable result being that you grab ripples and ridges. 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.

A photo and year make of rv would be helpful.