A bad measurement improperly sized shingle or low quality roof can simply result in an uneven and wavy appearance which essentially means you got a raw deal.
New shingle roof looks wavy.
The contractor told me it s because it s winter now and the shingles are shrunk and they will flat when temperature gets quite warm.
This is why working with a trusted professional is so important.
Before new shingles seal down they can look a little lumpy and uneven but once the roof gets hot.
Causes of a wavy roof.
If any of this is found be sure to have a roofer replace any plywood with the required thickness of board that is code for where you live.
It is not uncommon for a new roof to look a bit wavy until this permanent seal is created.
When heated by the sun the strip will cause the shingles to lay down and bond together.
Sometimes you just get a bad apple.
Having wet or poorly placed felt paper under your shingles can cause your roof to be wavy.
A new roof will be required after stripping both layers of shingles to achieve a quality flat look.
New shingles are not aligned accurately.
Damaged decking could also cause a wavy look to shingles.
I will hold judgement.
Rafters if too far apart may result in the plywood sagging or if the plywood is too thin for the weight it may sag.
I m fishy about the explaination.
Applying a temporary adhesive will do the trick.
Although the underlying cause is usually excess moisture under the shingles there are several factors that add to the severity of wavy shingles including.
Quality of the roofing work in general can also cause a roof to look wavy.
These buckling shingles are usually noticed in a straight line pattern or across the roof in ripples that look like they have air bubbles stuck under them.
New shingles that are not precisely aligned can also cause a roof to look wavy.
I just have my old roof removed and new roof installed by a contractor but the new roof looks wavy.
Roofing isn t complex really but it is exceptionally precise.
Thankfully this is usually corrected with a little time and heat.
Although roofing isn t necessarily complex it is extremely precise.
Could someone give me any advice before i pay several thousand dollors.
Shingles not sealing most asphalt shingles have an adhesive strip.
Would like to see a couple of closer up pics of the vent stack.
When some of the crowns are up and some are down then the roof has a wavy look but it is still structurally sound.
When the shingles heat up they become flexible and the adhesive bonds the shingles in place.
This is normally not a problem unless you experience windy conditions that can catch the shingles.
Inspect the plywood from the attic and look for cracks sagging or rotting.
One wrong measurement improperly cut shingle or low quality materials can simply result in an uneven appearance.