When a homes foundation shifts is not level or damaged then the foundation issues may be reflected by a sagging bowed or wavy roof.
Is a wavy roof bad.
The waviness generally does not cause a roof to leak but it may be architecturally unsightly or occasionally can indicate a problem.
It immediately detracts from the appeal and look of a home.
Quality of the.
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.
And most of them are bad news unfortunately.
The most likely reason an older roof would start to look wavy is that the decking has been damaged.
This is normally not a problem unless you experience windy conditions that can catch the shingles.
While a wavy roof is aesthetically unpleasing does it affect the performance of the roof.
A new roof will be required after stripping both layers of shingles to achieve a quality flat look.
Check foundation for these 5 things.
This is why working with trusted professionals is so important and why the lowest quote doesn t always mean the best.
Shingles not sealing most asphalt shingles have an adhesive strip.
Inspect the plywood from the attic and look for cracks sagging or rotting.
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.
Foundation problems with the house two or more roofs.
A wavy roof is an unsightly thing.
When heated by the sun the strip will cause the shingles to lay down and bond together.
To determine if a wavy roof is more than just an eye sore you must determine the reason for the wave.
Roofs may become wavy over time or they may have been built that way to start with.
It is not uncommon for a new roof to look a bit wavy until this permanent seal is created.
Damaged decking could also cause a wavy look to shingles.
Wavy or sagging roofs can be a warning sign that there are foundation problems with a house however there are a number of other reasons for a roof to sag or be wavy as well.
This is a bad move a roofing company should not lay new roofing shingles over shingles that are wavy.
Most that become wavy do so over time.
Roofing isn t complex really but it is exceptionally precise.