Roofs where most granules have disappeared are usually old enough to need some type of roof repair.
Roof missing granules.
These simple repairs can keep your existing roof sound for years to come.
The bond holding the embedded granules gradually begins to degrade and releases the granules.
Moss holds moisture against the roof surface and overtime in freezing climates can cause damage to the granules on the top of the shingles.
As your roof ages it s completely normal to lose some granular textures.
However if you notice a lot of granules in your downspouts or gutters after a hail storm you could have hail damage on your asphalt shingles.
It s a good idea to climb up on your roof and carefully inspect your shingles for missing granules.
Roof granule loss due to normal aging occurs over the life of an asphalt shingle roof as weather and sun exposure cause the roof shingle to lose its flexibility as the roof is exposed to changing temperatures etc.
Then gather some into a small cup and sprinkle them over the sealant to mask the repair.
Steeper roofs shed water faster and the same asphalt shingle on a low slope roof wears out faster than on a steep roof.
It s easy to camouflage.
A new roof is a pricey proposition.
The granules are what keep the roof weather proofed and without them your shingles are no match for the elements.
There are quite a few things you can do to extend the life of asphalt shingles.
Severe weather such as heavy rain hail or strong winds can also knock your granules loose.
A small amount is normal especially on new shingles.
This thermal expansion and contraction can lead to granule loss and cracking over time.
Check the gutter for an accumulation of colored granules that have washed down the roof from the shingles.
Granule loss which is uniform across the roof is usually a result of normal weathering.
This makes the shingle more acceptable to uv damage which leads to brittleness cracking.
Over time the bond between the granules and asphalt deteriorates and granules will be loosened and carried away by runoff.
Moss can be brushed off but it won t prevent it from growing again.
Our advice is to go outside and take a look at the shingles on your roof.
Missing granules granules can become loose and fall off for a number of reasons.
Roof box vent with hail damage.
Take care not to damage the shingle surface.
As your roof ages and endures a series of weather events it will naturally begin to lose granules.
A large pile of granules at the end of your downspout.
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.
You may need to contact a professional roofing contractor.
With older roofs even marble size hail may loosen granules.
A distinct pattern of small round shaped divots on the edges of the shingles.