Because water runs down these valleys on a regular basis it is a common place for erosion of.
Granular loss roof.
Severe weather such as heavy rain hail or strong winds can also knock your granules loose.
As your roof ages it s completely normal to lose some granular textures.
Photos and text guide diagnosis of asphalt roof failures causes effects of loss of protective mineral granules from roof shingles description of different causes of roof shingle granule loss.
These valley form a v and may have overlapping shingles.
What causes granular loss.
Though age is the most common cause of granule loss there are several other factors that can contribute to the premature loss of this protective coating.
Causes effects of loss of protective mineral granules from roof shingles asphalt roof shingle defects.
Roof valleys are particularly vulnerable to granular loss.
However other things can cause this too such as tremendous rains hail branches strong wind storms and exceptionally intense hot and sunny days.
Granule loss is the leading instigator of roof replacements as it s the heaviest and most prevalent symptom of a very aged roof.
Roof valleys are usually located where the main part of the house meets the garage roof or an addition to the home.
Granule loss is the leading instigator of roof replacements as it s the heaviest and most prevalent symptom of a very aged roof.
However other things can cause this too such as tremendous rains hail branches strong wind storms and exceptionally intense hot and sunny days.