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.
Hail bruising roof shingle.
Bruising will feel like indentations on your roof s surface.
If you have wooden shingles be on the lookout for splitting.
Hail resistant is not hail proof.
Gutters are also susceptible to hail damage.
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.
Because seamless gutters are frequently feature aluminum or copper construction the signs of hail damage include telltale denting.
How are bruises repaired.
Look for areas on the shingle that have exposed black substrate.
Bruising occurs when a hailstone s impact disperses the roof s granules.
Shingles labeled as impact resistant were purchased and put through a series of in lab tests that simulated the effects of hail impacts.
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.
As you re inspecting your roof you may find splitting or cracking.
A bruise feels soft when it is pressed on due to the internal fracturing of the mat.
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.
Through research and testing ibhs was able to manufacture hailstones that replicated the properties of hail produced naturally.
Hail damage can either be functional or cosmetic in nature.
Hail damage can also be affected by the number of shingle layers on a roof.
It s important to remember that no roof is 100 immune to the damaging effects of an intense storm or some other catastrophic event.
The bruise is a damaged portion of the roof in which the base or shingle mat is squashed.
Identify the types of damage caused by hail.
The 3 major signs of hail damage include bruising cracking and granules missing from asphalt.
The most effective way to minimize hail damage is to choose durable hail resistant roofing materials.
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.
Missing granules aren t the only indication of hail damage to shingles.
Here are the top hail resistant roofing options available for modern homes.
Shingle bruising is not outwardly noticeable and you may be tempted to ignore the issue.
Check for missing pieces in the asphalt of the roof.
Shingle bruises are an indentation with fracture in the mat that feels soft like that of an apple bruise.
