If the sheathing is properly gapped then the gaps can close causing the shingles spanning the gap to buckle.
Roof shingles curling up edges.
Curling roof shingles as shown here will show a curling under at the edges of the shingle tab first at the lower edge and sometimes also at the two sides of the shingle tab.
The page top photograph of curled roof shingles shows a worn out roof that needs replacement as soon as possible.
Curling is the most common of problems with roof shingles.
A curling shingle usually indicates a problem with the shingle itself or the way the shingle was installed.
It should come in through the soffit and and rise out of vents at the ridge of a roof.
Poor attic ventilation roofs get hotter and have excessive moisture rising up under the sheathing when there is inadequate air flow.
Simply put your roof just might be too old.
The shingles on your roof serve a dual purpose.
Click to enlarge any image.
The most common cause appears to be movement in the roof sheathing with changes in moisture levels.
If you have an asphalt roof that was done more than 12 15 years ago and the shingles are curling it s probably time to get it re roofed.
Access the roof and.
Old age one of the most common causes of curling shingles is age.
Curling shingles will expose the roof underneath which could cause further damage to your house.
It s important to have proper ventilation which regulates the intake and outtake of air in your attic and keeps your shingles at an ideal temperature therefore lessening the chance of curling.
Additional heat on the bottom side of shingles can cause them to wear prematurely fade and curl.
When you notice shingles on your home with edges curling up or down it s a sure sign that the roof is near the end of its useful life.
Lumpy bumpy or curling shingles that do not lie flat can be problematic but.
Additional heat on the bottom side of shingles can cause them to wear prematurely fade and curl.
Three reasons for premature curl are.
Place an extension ladder against the edge of the roof and extend the upper portion so the uppermost rung is at least 30 inches above the edge of the roof.
Put on work gloves.
If you can t afford to replace the roof just yet monitor the area for signs of a leak before calling for roofing estimates or installing a new roof yourself.
They give the roof a finished look while forming a protective seal.
The overheating speeds up normal deterioration of the shingles.
