New Roof Has Ripples In It

You could see some unevenness in the old shingle roof.

New roof has ripples in it.

As to the extent of it you ll need a professional to come take a look but don t get your hopes up. Lumpy bumpy or curling shingles that do not. 3 yr old hip roof. One can see clearly lots of ripples bumps all over the roof but one section is much worse than the rest.

The shingles on your roof serve a dual purpose. Contractor stated it was normal because no roof is completely flat. They were about every 8 ft along the roof line on the one side of the house. I could see nothing from the attic as the insulation baffles covered the area in all.

I m concerned they over tightened the screws or the material is not correct. I found these ripples on the roof line and can not figure out what would have caused them. Ripples can also expose the wooden portions of the roof to moisture that could lead to deterioration as well as rotting. The carpenter may have failed to put all of the crowns up on site framed roofs.

They were right at the edge above the soffit area and just a couple of feet long. I had my shingle roof replaced a couple of weeks ago using 25 year shingles and 30 lb. Speaking as a talented amateur i did my first ever epdm flat roof last year 20 sq m irregular shape it had no ripples then and it has no ripples now. Anyone have any ideas or seem this before.

Those ripples bumps can be pressed down easily which suggests that there is space between the shingle and decking i e shingles are not properly supported by the decking where there are ripples. Should the roof have so many ripples. Rippled shingles can quickly over time lead to a leaking roof. If your roof has ripples you should be concerned.

Poor framing practice is one of the more common reasons for roof waviness. Possibly the deck wasn t dry and that has limited adhesion. This is a new install on a 20 year old house. When some of the crowns are up and some are down then the roof has a wavy look but it is still structurally sound.

They used peal and stick underlayment. Epdm is heavy stuff it wants to lie flat and doesn t need much encouragement with a broom to do so. They give the roof a finished look while forming a protective seal. This could be a sign of a bigger problem in the future.