Granular Loss On Roof Shingles

Granular loss is something homeowners can be made aware of without having to climb on top of their roofs.

Granular loss on roof shingles.

This thermal expansion and contraction can lead to granule loss and cracking over time. Those are the causes of granule loss on asphalt shingle roofs which independently contribute to the damage and degrading of shingles and roofs. Over time normal weathering can cause your granules to become looser and eventually fall off. Granule loss indicates aging of a roof.

To identify granule loss simply walk the perimeter of your home and examine the area around your downspouts. They can combine and speed up the process. Granule loss is common after severe weather like hailstorms. Make sure to check your roof shingles for pitting or granule loss after a storm.

On a blistering hot summer day the temperature of asphalt shingles can approach 160f. Shingle granule loss defects occur on organic mat or fiberglass mat asphalt roof shingles and depending on the cause and extent of mineral granule loss the loosening of this protective coating can spell the end of life of an asphalt shingle roof or the demise of a mineral granule coated roll roofing roof. Granule loss is the leading instigator of roof replacements as it s the heaviest and most prevalent symptom of a very aged roof. Especially with older roofs foot traffic can cause shingle wear and granule loss.

When granules come loose they often run through your gutter system with water and pile up on the ground. 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. The shingle is more likely to crack bend or splinter once the granules are removed. Granular loss is easily seen via visual inspection but you may not even have to get on the roof to spot the signs.

Loss of mineral granules from asphalt shingle or roll roofing roofs. These bedroom doors open onto a flat roof. However other things can cause this too such as tremendous rains hail branches strong wind storms and exceptionally intense hot and sunny days. Look for damage to the shingle butts.

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. This roof leak article explains the causes effects of loss of protective mineral granules from roof shingles. This way you can have a roofingexpert assess the damage and give you repair or maintenance advice. Granule loss in a natural path of travel on the roof is usually caused by scuffing from foot traffic.

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. At high points they may be the part of the shingles showing the most wear. How to diagnose granular loss.