Roof Missing Granules

A large pile of granules at the end of your downspout.

Roof missing granules.

The first thing is to increase the roof pitch. Moss holds moisture against the roof surface and overtime in freezing climates can cause damage to the granules on the top of the shingles. Moss can be brushed off but it won t prevent it from growing again. A new roof is a pricey proposition.

As your roof ages it s completely normal to lose some granular textures. Severe weather such as heavy rain hail or strong winds can also knock your granules loose. The granules are what keep the roof weather proofed and without them your shingles are no match for the elements. You may need to contact a professional roofing contractor.

Granule loss which is uniform across the roof is usually a result of normal weathering. This thermal expansion and contraction can lead to granule loss and cracking over time. With older roofs even marble size hail may loosen granules. These simple repairs can keep your existing roof sound for years to come.

Indentations in the shingle where granules are missing. A distinct pattern of small round shaped divots on the edges of the shingles. 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. It s easy to camouflage.

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. Take care not to damage the shingle surface. Check the gutter for an accumulation of colored granules that have washed down the roof from the shingles. Prolonged exposure to hail can also loosen granules.

A small amount is normal especially on new shingles. 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 a good idea to climb up on your roof and carefully inspect your shingles for missing granules. As your roof ages and endures a series of weather events it will naturally begin to lose granules.

Roofs where most granules have disappeared are usually old enough to need some type of roof repair. Roof box vent with hail damage. Missing granules granules can become loose and fall off for a number of reasons. Over time the bond between the granules and asphalt deteriorates and granules will be loosened and carried away by runoff.

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. This makes the shingle more acceptable to uv damage which leads to brittleness cracking. Our advice is to go outside and take a look at the shingles on your roof.