Bumps and dips in the roof surface can interfere with the proper drainage of water off the roof and prevent the shingles from sealing properly.
The shingles on my roof dry out unevenly.
This uneven surface may also reduce your curb.
Should you decide to go with the old roof and do end up removing any of the old shingles make sure that you apply a layer of 30 pound roofing felt before you begin laying any new shingles.
This keeps the solution from drying out immediately after application.
Osb roof sheathing gets rained on all the time up here and roofs are the first cover to go on a framed structure.
Soak the shingles with water.
The company installed those frozen shingles and the end result was a uneven not flat looking 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.
Worn or deteriorated roof covering materials occasionally loosen from their fasteners and lift away from the roof which creates an uneven appearance.
Exposure to wind rain and sun further deteriorates the roof coverings often resulting in shingles or roof panels that appear to be peeling off of the structure.
When you see runoff stop.
In cases where the damage is extensive removing the old roofing shingles completely is advisable.
Generally plywood roof decking that has gotten wet and had the shingles applied over it if allowed to dry out will not be seriously damaged by wood rot fungus organisms.
It will be able to dry for weeks before being.
Ripples in the shingles cause the tabs to lift up allowing water to seep under the surface and soak into the wood decking.
With the shingles on it sill still breathe.
Roof shingles are not lying flat.
Bumps in the roof.
The combination of damaged and swollen decking along with moss growth can make for a new roof installation that is anything but smooth.
Ignoring an uneven roof can result in rot and mold growth in the attic.
When the air underneath circulates it will dry.
Starting from the bottom carefully wet the shingles.
They give the roof a finished look while forming a protective seal.
Bring your garden hose or water sprayer up to the roof.
Layer separation is a major reason that aging asphalt shingles develop an uneven or wavy look.
Lumpy bumpy or curling shingles that do not.
The underside will breathe.