Roof Missing Granules

Missing granules granules can become loose and fall off for a number of reasons.

Roof missing granules.

A new roof is a pricey proposition. There are quite a few things you can do to extend the life of asphalt shingles. A large pile of granules at the end of your downspout. 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.

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. Moss can be brushed off but it won t prevent it from growing again. Granule loss which is uniform across the roof is usually a result of normal weathering.

As your roof ages it s completely normal to lose some granular textures. The bond holding the embedded granules gradually begins to degrade and releases the granules. It s easy to camouflage. Our advice is to go outside and take a look at the shingles on your roof.

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. Roof box vent with hail damage. The granules are what keep the roof weather proofed and without them your shingles are no match for the elements. A distinct pattern of small round shaped divots on the edges of the shingles.

Severe weather such as heavy rain hail or strong winds can also knock your granules loose. Roofs where most granules have disappeared are usually old enough to need some type of roof repair. A small amount is normal especially on new shingles. Over time the bond between the granules and asphalt deteriorates and granules will be loosened and carried away by runoff.

You may need to contact a professional roofing contractor. Prolonged exposure to hail can also loosen granules. Steeper roofs shed water faster and the same asphalt shingle on a low slope roof wears out faster than on a steep roof. The first thing is to increase the roof pitch.

Then gather some into a small cup and sprinkle them over the sealant to mask the repair. 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. Indentations in the shingle where granules are missing. This makes the shingle more acceptable to uv damage which leads to brittleness cracking.

With older roofs even marble size hail may loosen granules. As your roof ages and endures a series of weather events it will naturally begin to lose granules. This thermal expansion and contraction can lead to granule loss and cracking over time.