HAIL DAMAGE TO ROOFING SHINGLES Roofing Storm Damage Grennville, S.C Rain, Hail, Wind,& Snow, Roof Storm Damage Greenville, SC, When quality counts
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Hail forms when frozen water drops are lifted in turbulent wind regimes during thunderstorms. The frozen drops of water increase in size and eventually fall to earth as hail having been driven by a combination of gravity and wind forces. Hail stones vary in size from pea size (1/4 inch diameter, little roof damage), through marble size (3/4 inch in diameter, threshold damage to roof materials) to golf ball size (11/2 inch in diameter, typically severe damage to roofing materials). Hail size distributions tend to be localized with some roofs damaged, while others are not. Wind direction plays an important role, as well as roof pitch. A direct impact of hail on a shingle is more damaging than that of a glancing blow.
hail impact on two different roof pitches. The home on the left would sustain more roof damage than that on the right, because of the more direct impact on the left as opposed to the less damaging, glancing, blow to the right. Wind conditions can distort damage to a home as illustrated below. The home on the left has more glancing blows to the roof from the
wind, while the windward wall comes under attack from direct hail impact. The right wall is protected and undamaged from the hail. The home on the right will more likely sustain roof damage on the windward side because of the more direct impact. Assessing hail damage is often accomplished by a roof inspection, which usually occurs several days to several months after the hail event. Determination of whether hail actually fell at a site can be made through statements and weather reports. Inspection of thin, aluminum fixtures helps verify hail impact. Below the photo shows denting on a roof vent cap indicating that hail had struck the vent at one time.
Hail damage to asphalt shingles includes severe granule loss, material removal at the edges of the shingles and penetration. New asphalt shingles are more resistant to hail impact than older shingles since the asphalt becomes more brittle with age. Warmer shingles are more compliant and more resistant to fracture from hail when compared with colder shingles. Shingles rely on a structurally sound substrate for hail damage resistance. Flexible roof sheathing allows the shingles to flex during impact causing damage, while more rigid roof sheathing supports the shingle during impact resulting in less shingle damage.
Most hail related damage is cosmetic and does not affect the useful life of roof shingles. In other cases severe wood splitting, significant granule loss, penetration of the shingle and fracture may require shingle replacement.
Make sure your attic is adequately vented as it can be the key to an energy-efficient home. In the winter, allowing a natural flow of outdoor air to ventilate the attic helps keep it cold, which reduces the potential for ice damming (snow that melts off a roof from an attic that is too warm and then refreezes at the gutters, causing an ice dam that can damage the roof).
In warmer weather, natural airflow in a well-vented attic moves superheated air out of the attic, removing moisture and protecting roof shingles.
• Don’t block the flow of air. Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents and pushing hot air to the outside. If your attic has blocked soffit vents and is not well sealed from the rest of the house, attic fans will suck cool, conditioned air up out of the house and into the attic. This will use more energy and make your air conditioner work harder, which can increase your utility bill.
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Shingles are used to cover a roof and they are a very important aspect of your roof’s maintenance system.
Shingles are often the first line of defense that your roof has against extreme weather conditions such as ice, snow, water, sleet, hail, and wind.
It is important to maintain the condition of your shingles and replace missing shingles quickly to ensure the longevity of your entire roofing system. Missing shingles can cause your roof to leak and lead to further damage. It is always best to hire a professional roofer to install the shingles as well as answer any questions that you may have regarding the best type of shingles for your roof.
· There are several types of roofing shingles that homeowners may select from. Some of the most popular choices include: asphalt shingles, fiberglass shingles, organic shingles, and wood shingles. Additionally, it is very important to reinforce shingles to ensure that they are stable and will withstand great wind pressure changes as well as fluctuations with the weather.
· Asphalt shingles are a very popular choice due to the fact that they are versatile and inexpensive. In fact, the majority of homeowners use asphalt shingles, though there are many different choices available today. There are two types of asphalt shingles; these are fiberglass and organic shingles.
· Fiberglass shingles are built upon a mat or core layer of fiberglass. This core is what makes fiberglass shingles different from organic shingles. Organic shingles are made with an organic core. The core is made from recycled fiber such as wood or paper.
Since the older homes typically have wood shingles, it is very common for these shingles to need repair. Many times, these shingles may be between twenty to forty years old. Some signs that wood shingles may need to be replaced include leaks, cracks, or other signs of damage to the shingles or if the shingles are curled or show signs of breakage. If you have damaged shingles, it is best to call a professional roofer and have them repaired immediately