Granule Loss On Roof Shingles

Granule loss indicates aging of a roof.

Granule loss on roof shingles.

Granule loss occurs when the embedded granules begin to loosen and fall off the shingle. Imagine if a quick thunderstorm flares up and cool rain drenches the roof lowering the temperature of the shingles by up to 100 degrees in seconds. Some other aging clues are curling at shingle corners lack of tab adhesion and broken off pieces as the shingles get more brittle with age. Granular loss is easily seen via visual inspection but you may not even have to get on the roof to spot the signs.

When granules come loose they often run through your gutter system with water and pile up on the ground. Make sure to check your roof shingles for. If the majority of the shingles on your roof are experiencing granule loss a roof replacement is likely not far behind. However not all granule loss is a concern.

Granule loss is common after severe weather like hailstorms. To identify granule loss simply walk the perimeter of your home and examine the area around your downspouts. 5 causes of granule loss on asphalt roof shingles 1. In fact it s not uncommon to find a few loose granules in the gutter weeks after the roof is installed.

How to diagnose granular loss. It s important to note that granule loss is a normal part of roofing wear and tear. These granules stay on the roof for most of the roof s life span. This thermal expansion and contraction can lead to granule loss and cracking over time.

The shingle is more likely to crack bend or splinter once the granules are removed. Let s look at a few causes so that you can determine if you need a roof inspection from a professional. Because granule loss is one of the signs that a roof is getting older it is used by inspectors as a gauge of roof condition and a way to estimate additional roof life. Walking on shingles causes some of the granules to fall off your roofing system.

You may find evidence of this in your gutters or sometimes in your yard. Normal shingle granule loss means that there has been no single event that has damaged the roof that the quantity of granules lost from or remaining on the shingles is typical for the chronological age of the roof and that thus the wear age of the roof it s remaining life compared with its original warranty or projected roof life is about the same as the roof s chronological age after we factor. On a blistering hot summer day the temperature of asphalt shingles can approach 160f.