This could indicate that the shingle seal was broken and the shingle was flapping in the wind rubbing against the shingle above it.
Roof shingles flapping in wind.
You put a little tab of tar.
You put a nail in the shingle tab.
Not only must nails be properly placed and spaced improper nailing itself such as driving a nail through the shingle leaving a nail sticking up to cut a shingle above or using a roofing stapler improperly leaving cocked staples or shingle cutting staples will all encourage shingles to fly away with the wind.
There are different variations.
To be effective against the elements shingles must be sealed to each other as one water tight roof deck.
If a shingle comes unsealed and starts flapping in the wind you may see horizontal creases on it indicating is has been unsealed and damaged by flexing.
Insurers are trying to limit liability for all types of roof claims for wind or hail or anything other than fire.
Shingles are considered wind damaged when they are torn creased or detached from the roof most commonly wind damage occurs when three tab shingles are creased by repeated lifting or flapping.
Thin horizontal lines where granules have been worn off about 1 2 inches beneath the shingle above.
Kung fu maintenance shows the preventative repair of a bunch of loose asphalt roof shingles blowing up in the wind.
You should also look for other signs of aging such as warping.
It does not happen to all the shingles.
New shingles that have not an opportunity to seal will flap in a hard wind even if they are correctly nailed.
Shingles that buckle slightly during the packaging and storage process or buckle during the delivery loading process are prone to wind uplift.
A wood shake or shingle endorsement is a written document attached to an insurance policy that excludes or restricts coverage of wooden shingle or shake roofs.
And then you nail the shingle down then you bring the tab back over so it s completely closed.
Unsealed shingles without physical mat damage are not considered wind damaged.