How are Impact Windows Tested to Withstand Hurricane Categories?

For those of you who remember Hurricane Irma in 2017, it was the strongest storm to ever hit the Atlantic coast. Irma left over 100 people dead in her wake and a damage trail that exceeded $77 billion as it traveled through the Caribbean and into the US. So, the question arises, what is the potential extent of the damage that you can anticipate from a hurricane?

Damage Potential to expect

NOAA and meteorologists use the Saffir-Simpson Scale to measure a hurricane’s wind speed.  It is also an accurate way to determine the potential amount or extent of the damage that you can reasonably expect. The breakdown by category is as follows:

Tropical depressions and storms:

  • bending and shaking of bushes, telephone poles, trees, and other objects
  • falling debris, powerline damage results in potential outages
  • rains and the potential for flooding
  • winds speeds ranging from 39 to 119 mph (34 to 64 knots)

Category 1:

  • heavy rains and flooding
  • roof gutters, shingles, tiles damaged, trees breaking and snapping
  • wind speeds ranging from 74 to 95 mph (64 to 82 knots)

Category 2:

  • many trees breaking or getting uprooted
  • major roof damage, power outages that can last as long as several weeks
  • wind speeds ranging from 96 to 110 mph (83 to 95 knots)

Category 3:

  • decks, roofs, siding, and other outdoor buildings or fixtures completely removed
  • flying debris, trees lifted into the air, and other damage to the environment
  • loss of clean water services and power outages
  • significant flooding
  • wind speeds ranging from 111 to 129 mph (96 to 112 knots)

Category 4:

  • collapsed roofs and walls as well as other severe structural damages
  • flying debris can be deadly, heavy rains and destructive flooding
  • loss of clean water, power outages, and more lasting several weeks or even months
  • wind speeds ranging from 130 to 156 mph (113 to 136 knots)

Category 5:

  • homes destroyed, loss of power and water services for months
  • storm area is generally uninhabitable
  • wind speeds over 157 mph (137 knots)

Impact windows and doors can withstand the strong surge of the hurricane winds, barring Category 5 hurricanes, in some cases. One of the tests includes the missile impact test which includes trees or wooden boards launched at a speed of 50 feet/second to the middle of the impact window. When the window can withstand it, another one is shot at corners. To qualify for the impact window testing standards, the window glass should be able to withstand the force at the corner and middle.

All of the impact windows and doors are put to test before they are marketed and sold. They have a pressure rating of DP100 and water penetration mark up till 15 PSF. From flying debris to high-velocity winds, V & V Windows products range from a wide selection that can potentially withstand all of it.

With a full range of windows and doors available at our showroom, you can get the best prices as we are manufacturers and direct sellers. This cuts down the middleman profits and helps you get the best prices and quality products that V & V Windows has to offer.