However some areas allow multilayer roofs which can save homeowners the cost of a tear off and debris removal.
How to fix a wavy roof.
A good contractor will never just add a layer of shingles over an existing layer of shingles they ll remove your old shingles first.
A few reasons why your roof is wavy wavy or warped roofs don t happen naturally.
A layer of shingles was applied over an old layer this only happens if you worked with a bad roofing company.
If the felt paper was bubbly or wet when it was applied then it will cause the roof to look wavy.
Having wet or poorly placed felt paper under your shingles can cause your roof to be wavy.
Typically in this case the problem will resolve itself with just a little time and heat.
Hardware details of the roof expander.
This is the best case scenario for a wavy roof because typically the paper will end up flattening itself after a few weeks of summer weather.
When it comes to wavy or warped roofs it s best to call in a professional roofing contractor like aabco roofing for a thorough roofing consultation and inspection.
This type of roof wave is usually only seen after a new installation.
However the new shingles will keep to the form of the old layer.
If your roof is sagging wavy or bowing there are six important things in the attic to check from a structural standpoint.
First one end then the other of the stretching tool is bolted to the pre drilled holes in a pair of opposing rafters.
However that pronounced wave will nearly always signify one big thing.
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.
Thankfully this is the most common cause and also the easiest to fix.
As work progresses hanging the roof sag remover tool from one of the new collar ties already in place eases holding it in place for bolting.
Applying a temporary adhesive will do the trick.
Thankfully this is usually corrected with a little time and heat.
Although we generally think of our roofs as one of the major components of our home that keeps us dry we also need to think of them as a key structural component.
Multilayer roofs it is always better to tear off your old roof and install a new one.