A bruise feels soft when it is pressed on due to the internal fracturing of the mat.
Hail bruising roof shingle.
Hail resistant is not hail proof.
Bruising occurs when a hailstone s impact disperses the roof s granules.
Functional hail damage to asphalt shingle roofs is characterized by a concentrated loss of granules usually somewhat circular in shape and accompanied by a fracture in the shingle mat or a bruise in the shingle mat.
Hail damage can also be affected by the number of shingle layers on a roof.
Bruising will feel like indentations on your roof s surface.
They are not always visible but should be addressed upon discovery as failure to do so can cause holes to eventually form in your shingles leaving your roof vulnerable to nature s elements.
Missing granules aren t the only indication of hail damage to shingles.
It s important to remember that no roof is 100 immune to the damaging effects of an intense storm or some other catastrophic event.
How are bruises repaired.
Marshall and herzog 1999 more specifically defined functional hail caused damage to asphalt shingles as punctures tears or fractures bruises in the shingle mats figure 1.
Through research and testing ibhs was able to manufacture hailstones that replicated the properties of hail produced naturally.
Shingle bruises are an indentation with fracture in the mat that feels soft like that of an apple bruise.
Look for areas on the shingle that have exposed black substrate.
In other words the hail has placed enough pressure on the shingles that the fibers within the mat have loosened and have started to come apart.
Shingles labeled as impact resistant were purchased and put through a series of in lab tests that simulated the effects of hail impacts.
The bruise is a damaged portion of the roof in which the base or shingle mat is squashed.
Shingle bruising is not outwardly noticeable and you may be tempted to ignore the issue.
As you re inspecting your roof you may find splitting or cracking.
Identify the types of damage caused by hail.
As hail hits it may leave a circular crack in a shingle.
These shingles can split right down the middle when hail hits.
Check for missing pieces in the asphalt of the roof.
Gutters are also susceptible to hail damage.
The 3 major signs of hail damage include bruising cracking and granules missing from asphalt.
Because seamless gutters are frequently feature aluminum or copper construction the signs of hail damage include telltale denting.
Hail is a powerful force of nature that can even damage roofs made with concrete tiles if the stones are large enough and wind speeds are high.
The most effective way to minimize hail damage is to choose durable hail resistant roofing materials.
Second layer shingles are more susceptible to damage than first layer shingles because the surface directly underlying the shingle is less supportive than dense wood.
