My New Roof Is Wavy

Having wet or poorly placed felt paper under your shingles can cause your roof to be wavy.

My new roof is wavy. Damaged decking could also cause a wavy look to shingles. Cracked or damaged rafters or trusses. Poor framing practice is one of the more common reasons for roof waviness. If you ve recently gotten a new roof and it got all wavy on you then here are the possibilities.

If the felt paper was bubbly or wet when it was applied then it will cause the roof to look wavy. Applying a temporary adhesive will do the trick. This is a bad move a roofing company should not lay new roofing shingles over shingles that are wavy. A new roof that is of a heavier material if the original roof was wood shingles a light weight material and it was replaced with concrete tile a heavy material then the roof may sag or be wavy because it was not structurally designed to carry the heavier load weight.

Why does this roof look wavey. The problem is you had a contractor do it and not a roofer. Multilayer roofs it is always better to tear off your old roof and install a new one. Inspect the plywood from the attic and look for cracks sagging or rotting.

When referring to asphalt shingles felt paper is what is typically used in this application. This type of roof wave is usually only seen after a new installation. It is not uncommon for a new roof to look a bit wavy until this permanent seal is created. A new roof will be required after stripping both layers of shingles to achieve a quality flat look.

When some of the crowns are up and some are down then the roof has a wavy look but it is still structurally sound. The carpenter may have failed to put all of the crowns up on site framed roofs. Good call on the pipe river. What happens here is that a contractor laid out your new shingles directly on top of your old ones creating an unnatural waviness that just isn t going to go away.

This is normally not a problem unless you experience windy conditions that can catch the shingles. There was an issue with the felt paper before the shingles of a roof are put down felt paper is laid down first. If the material was damp if the day was humid or the paper bubbled a bit if could produce a wavy appearance on your new roof. When someone walks on the roof the panels deform and have no internal strength to return to their old level which is why the roof looks wavy after the roofers finished.

The following are some of the more common causes for a wavy roof. If you have recently had a roof installed and it has started to look wavy there are the possibilities. Underlayment is what we call the product placed between the decking and and the shingles. It could be any number of reasons discussed above but it doesn t look overly wavy imo.

The shingles were laid over an old layer of roofing.