 Show windows and wind resistance I'm trying to find out how much wind my windows can take before they break. It's double paned...I didnt board up and Hurricane Rita is close by and wanna know the chances if I come back to a big mess or not... Join Date: Dec 2004 Location: USA Posts: 29,226 It's hard to say. Some high quality double pane glass are rated to withstand winds of 180 mph. Whether your glass meets those standards is anyone's guess. Whether the glass is glazed into a wood frame, or vinyl frame or aluminum frame also weigh in how strong it will be. And even if it can withstand the wind, it won't be able to withstand a flying object that is propelled by the wind. If you're house isn't within 75 miles of the eye, they'll probably be ok. which one is the best? mine are metal framed, i dunno if it's aluminum. i just know when they went in i only noticed the sticker about the energy rating thingy. Join Date: Dec 1999 Location: South Dakota Posts: 3,140 Received 0 Votes on 0 Posts Wind Resistance There are alot of variables here. But there are both vinyl and wood windows which can easily take a 130 mph flat wind. Even some up to 150 mph. There are even some that will not crack with flying objects. Sky scrapers are using these. Very expensive. This is my suggestion. By the time you read this, Rita will have arrived. So you let us know how your windows survived. Good Luck Join Date: Dec 2004 Location: USA Posts: 29,226 My guess would be that aluminum or steel framed windows would be best, since those materials are more rigid than vinyl. Join Date: Dec 1999 Location: South Dakota Posts: 3,140 Received 0 Votes on 0 Posts Wind Resistance That is exactly why vinyl and wood are so good. They have give in them. There is room for contraction and expansion and some twisting and give to the windows, which keep the panes from exploding. Rigidity is not a good thing in high winds. well, rita came and went and my house survived. wind blew my gate way too open and i had to replace some boards but that's it. windows took a beating and scared the sh!t out of me but came through fine. luckily we weren't in the direct path so it wasn't as bad as it could have been. Join Date: Dec 1999 Location: South Dakota Posts: 3,140 Received 0 Votes on 0 Posts Windows & Wind Congratulations. Good for you. That was a good storm. Glad you only had minimal damage. Finding a glass that can withstand 200 mile-per-hour (mph) winds is one thing, but somehow finding the kind that can also withstand the wind-borne debris that accompanies such a powerful storm is another matter entirely, say several experts. The topic is a timely one now, given the swath of destruction left in the Philippines last week by Typhoon Haiyan. The powerful storm, which brought sustained winds of just under 200 mph and gusts as high as 235 mph, devastated the South Pacific Island nation, leaving thousands dead and millions more without food and shelter. Rick De Le Guardia, president and founder of DLG Engineering, says laminated glass might have helped, but not even that could have withstood the fury of the many projectiles filling the air during a storm such as Haiyan. “The answer is yes – glass can sustain the uniform pressures associated with wind speeds of 200 miles per hour,” De La Guardia says. “But the real question is ‘Can glass sustain the impact forces of wind-borne debris associated with a wind speed of 200 mph and the subsequent continued loading after impact?’ “The answer to that is probably not, at least not in a cost-effective manner.” Bob Ziders, an engineer with the National Certified Testing Laboratories, echoed similar thoughts. “Glass can stand [200 mph. winds],” he says. “It’s the debris that causes it to break and that’s the problem.” There are glazing products available that have been built to withstand such extreme winds. The new hospital being constructed in Joplin, Mo., will feature windows that can withstand up to 250-mph winds. De La Guardia is quick, however, to point out the big distinction between wind pressure and wind speed. The pressure, which is the actual load imposed on a product by the wind, is a function of wind speed among numerous other factors. “It is the pressure imposed on the glass,” De La Guardia says, “that is critical and not the wind speed.” De La Guardia says that glass is not designed to support wind speed, but rather wind pressure, which is defined as pounds per square foot of pressure or force applied to the surface of the glass as it relates to the wind speed. Other factors that determine varying levels of wind pressures include height above grade, pitch of roof, proximity to building corners, surrounding terrain, etc. Factors that affect the strength of the glass include the lite’s overall size, support conditions and load duration among others, says De La Guardia. It’s for that reason that he says it’s misleading at best for any manufacturer to boast of having a product that can sustain high winds in tornados or more powerful storms such as Haiyan unless they provide the “pressure” associated with that particular wind speed and the glass parameters. At worst, he says, it can lead people into a potentially fatal false sense of security. “For example,” De La Guardia says, “yes, a piece of glass one-foot long by one-foot wide located on the ground floor of a one-story building may be able to support the pressures associated with the wind speeds of 200 mph, but perhaps not if that same glass specimen is installed on the 20th floor, which would be subject to much-higher pressures under the same 200 mph wind.” De La Guardia also notes that a glass specimen of two feet long by two feet wide located on the same ground floor of the same one-story building would not be able to sustain the pressure associated with the same 200 mph winds due to its increased size. The point, however, is moot if the glass isn’t protected from the debris strewn through the air by destructive winds of that nature. “That’s the killer,” Ziders says. This article is from USGNN™, the daily e-newsletter that covers the latest glass industry news. Click HERE to sign up—there is no charge. Interested in a deeper dive? Free subscriptions to USGlass magazine in print or digital format are available. Subscribe at no charge Sign up today. How much wind pressure can a window take?A basic residential window may have a design pressure of 15 pounds per square feet. That means, under most conditions, the window can be expected to withstand up to 15 pounds of pressure for every square foot of its surface before it breaks.
Can double pane windows withstand a hurricane?Double pane windows include two pieces of glass with an air gap in between. Advantages include better insulation, noise reduction, and UV control. However, double pane windows are not designed to withstand windborne debris and should be protected just like single pane glass when a hurricane is threatening.
Can strong winds break glass?Windstorms exceeding 100 miles per hour greatly increase the damage your car may experience. At this speed, the wind is strong enough to hurl larger objects toward your vehicle, dent the side panels or shatter glass.
How do I stop my windows from breaking in high winds?Here are some dos and don'ts of minimizing the storm's impact on your windows.. Do Use Sturdy Storm Shutters. ... . Don't Tape the Windows. ... . Do Use Thick Plywood If You Don't Have Shutters. ... . Don't Leave Windows Open. ... . Do Clean up Yard Before the Storm. ... . Do Use Impact-Resistant Window Film.. |
How much wind can double pane windows withstand
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