Always install flashing around a chimney and other valleys where two roof planes meet as these areas are more prone to leaks if not protected.
New roof shingles not laying flat.
Causes of a wavy roof.
The shingles on your roof serve a dual purpose.
Shingles not sealing most asphalt shingles have an adhesive strip.
There are different types and styles of roof shingles that are either flattened or curved when facing against the roof.
Sometimes this problem is more apparent on north facing roof slopes that don t heat up sufficiently for the shingles to seal until summer.
Install new flashing metal flashing is often called drip edge along the bottom of the roof near your gutters.
Before new shingles seal down they can look a little lumpy and uneven but once the roof gets hot enough they should soften flatten and form a permanent seal.
Looks like the top bundle on the bottom pallet.
This is common as suppliers sometimes stack pallets of shingles too high and for various reasons such as overstock lack of storage area etc.
Known in the trade as vertical racking or staggering this how to lay shingles method enables the roofer to install a single column of shingles all the way to the peak without the wasted back and forth motion necessary to fill several rows of stair steps.
Nail the drip edge in place using your hammer and roofing nails.
Most felt paper will not lay tabletop flat in cold weather.
Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.
They give the roof a finished look while forming a protective seal.
The company installed those frozen shingles and the end result was a uneven not flat looking roof.
Continue adding panels until the roof is covered.
Check the roof by applying pressure to areas of the roof.
I am asking the company to re do my roof because i have also research with the manufacture of the shingles and in order not to void the lifetime warranty the roofers has to follow up with their storage and stocking recommendations if not install right away after delivery.
Lumpy bumpy or curling shingles that do not.
In most cases new asphalt shingles are installed by overlapping one from another or by interlocking this creates a barrier against different forces of the weather most notable rain snow.
Why are new roof shingles not flat.
Roof shingles are not lying flat.
Metal roofing is also available in the form of shingles.
You may need to cut panels to fit angles using a circular saw with a metal saw blade.
If it is the felt come spring it will look better but will never be completely flat.
Many pros shingle in a vertical line up the roof because it s much faster.
Screw the new panel in place as described.
And its not so much warm weather that is needed as plenty of sunshine will do the trick.
You should be able to see the difference.
It is not uncommon for a new roof to look a bit wavy until this permanent seal is created.