Hailstones are clumps of layered ice that form when falling raindrops are carried skyward by thunderstorm updrafts. As they are carried upward, they reach extremely cold areas of the atmosphere (generally -10° C to -25° C) and, in the process, collide with other freezing raindrops. Eventually, a hailstone is formed, and it becomes too heavy for the updraft to sustain its high altitude. Gravity then takes over, and the hailstone falls back to the Earth, potentially damaging whatever lies below.
冰雹的大小及其造成的破坏通常取决于携带它们的上升气流的强度和大小。通常，冰雹很小。但是，在激烈的雷暴期间，它们可以成为庞然大物。
Marble-sized hailstones typically fall to the Earth at around 20 mph, while baseball-sized hailstones can reach speeds of more than 100 mph. The amount of damage they cause can also be determined by their shape; while those that take on a smooth form can be damaging, it’s jagged hailstones that are the most destructive.
While hailstorms are most commonly associated with “Hail Alley,” the area consisting of Nebraska, Colorado, and Wyoming, hail can happen just about anywhere. In fact, it may surprise you to know that some of the most severe hail damage has happened outside these states. Here’s a look at 2017 hail damage estimates as reported by analytics firmVerisk, which provides data for insurance companies.
在确定冰雹可能罢工的位置可能是一个移动的目标时，确定何时发生的目标要容易一些。冰雹活动成熟的天气状况发生在春末，夏季和初秋的月份。因此，五月到9月是冰雹的“黄金时间”。
Following a hailstorm, there are often some obvious ground-level signs of damage, such as broken or damaged windows, siding, or doors, which may indicate roof damage as well.
这里有其他11个厕所k for which could indicate that your roof may have taken
a hit.
检查是否有损坏，例如凹痕，裂缝，油漆芯片或孔。
冰雹的影响可以从车道表面清除污垢和藻类，留下“干净”车道的飞溅痕迹。
检查金属和玻璃纤维窗户网格是否有眼泪。
Hail, especially the jagged variety, can tear through the leaves of bushes and shrubs.
Check for cracked or broken light fixtures in the yard or on your home.
These outdoor items, left uncovered, can sustain dings and dents.
Vinyl fencing and decking material may have holes or cracks due to hail, while wood fencing and decking may display new scrapes and splintered wood.
在壁板和门上寻找凹痕，叮叮，油漆片和磨损。
Shingles, tree branches, and other debris in your yard or pool means you experienced heavy wind that may have compromised your roof.
冰雹损坏的屋顶通常会使水渗入房屋和车库，从而在天花板和潜在的霉菌或霉菌生长上变色。
Leaks caused by hail damage can cause water to become trapped between drywall and paint during the storm, leading to bubbling paint.
众所周知，冰雹会破裂或完全分裂这些类型的屋顶
On soft roofing materials, such as PVC or weathered roof patch compounds, look for punctures or puncture marks
Missing shingles may seem like a dead giveaway for hail damage, but this could simply indicate heavy winds. There are, however, signs of damage.
金属屋顶is less likely to sustain damage during a hailstorm, however an extreme hail event may cause dents and dings. This damage is typically cosmetic in nature.
Not all roofing is created equally, and it has long been common knowledge that certain materials withstand wind and hail better than others. However, there was not a defining standard. That all changed in 1996, when the Underwriters’ Laboratory (UL) created a national standard for roof impact resistance by rating roofing materials based on their resistance to impact testing with steel balls simulating 90 mph hailstones of different sizes. This resulted in the Class 1 – 4 scale, with Class 1 being most susceptible to damage and Class 4 being the toughest.
州农场保险公司缓解协调员杰克·斯坦顿（Jack Stanton）告诉《保险杂志》，“每年，成千上万的房主都会失去屋顶和风能破坏。”“我们现在知道，4级材料为房主提供了一些最佳的长期屋顶保护。”
In fact, the Class 4 rating gives many property insurance companies so much confidence that they often offer a premium discount on homeowner insurance just for installing a UL Class 4-rated roof! Metal roofing is UL Class 4-rated.
Shingles aren’t expected to last more than 20 years, while a metal roof can
last50-60 years.
金属屋顶提供美感和勇敢。看看我们可视化器工具查看
what a metal roof would look like on your home.
金属屋顶reflectsmuch of the sun’s heat and energy, which results in lower energy bills.
金属屋面包含大量的可回收材料。另外，当它的服务寿命结束时，它可以再次回收！
与某些屋顶材料不同，金属不可燃烧。即使与其他屋顶材料相比，它不太可能被闪电击中，但即使是这样，它也不会引起火灾。
Because metal roofing has Class 4 hail resistance, many insurance providers offer discounts for installing it.
If you’re tired of replacing shingles and are ready to fight back against hail, you can count on McElroy Metal. We’ve been at this for more than 57 years, and we have dozens of superior UL Class 4-rated steel profiles that look as good as they perform.
为了确保您的屋顶由一家知名的公司正确安装，我们拥有一个由分销商和承包商组成的国家网络。您可以在我们的网站上找到附近的一个。
想了解有关金属屋面的更多信息吗？确保下载我们的住宅金属屋顶指南。
无论您是建造新房屋还是计划翻新，金属屋顶都可以节省长期的成本和舒适性。探索您的选择并找到满足您美学和预算需求的产品，contact a McElroy Metal distributor or contractorin your area today.
