What type of glazing is the best in use against the wind?
What type of glazing is the best in use against the wind? I have seen mixed comments in different NCARB study material. Tempered & Laminated seem to do ok. But which one is the best? Can someone enlighten me?
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I don't think it's as much about the type of glass as it is about the thickness and the area vs frame strength.
I giant pane of glass is going to move in the wind. It should, in fact, give a bit rather than crack.
Laminated and tempered prevent injury when glass breaks, so it's required in bathrooms, jails, and beside operable doors.
Hope this helps!
Rebekka O'Melia, Registered Architect, NCARB, B. Arch, M. Ed, Step UP, Step UP ARE 5.0 Courses
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i just did a quick google search and found this website to be very helpful:
https://www.riotglass.com/laminated-vs-tempered-glass/
both laminated and tempered glass work well, but between the both of them (regarding their strength), Tempered is better than Laminated which is better than Standard Glass.
This quote was taken from that website above:
"Laminated glass is deemed strong since it can stand the force of a rock or bullet without shattering and falling off the window or door frame. Its strength can be attributed form the glass layers and the resin used as the interlayer. What’s more, the pressure and heating process adds to its strength and makes the glass up to 5 times stronger and 100 times stiffer than the standard glass.
On the other hand, tempered glass is known for its strength and resistance towards force. Throughout the manufacturing process, the glass goes through stages of heat, pressure, and even chemical treatment to make it tougher than regular glass. While considering the strength to withstand breakage, tempered glass is considered to be stronger than laminated glass."
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Kathleen Hogan
Laminated glass can laminate many layers of glass..... so it could be stronger than tempered glass from my understanding... that's what my guess
For exam purposes, I always try to refer to the Ncarb material instead of google search. Because Nacarb doesn't take the latest technology in mind, only refers to the old school building science.
but I do really appreciate your help tho. After a couple of talks with friends and coworkers, I think I will stick with laminated glass.
At the end of the day, they always ask us "what is the best" of XXXX. so we just have to take our best guess on these stupid questions. -
You really wouldn’t use either of those just to address wind concerns. Laminated glass, and tempered glass are both very expensive. If you just need something that can withstand the wind it’s going to be a stronger frame and/or slightly thicker glazing. Some coastal regions require higher wind speed rated windows. Most manufacturers have a high-quality line that is Hurricane wind rated.
If you need impact resistance, bullet proof glass or tempered glass then that’s something else entirely.
Hope this helps!Rebekka O'Melia, Registered Architect, NCARB, B. Arch, M. Ed, Step UP, Step UP ARE 5.0 Courses
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Hi Kawai, hope you have a minute?
I believe heat soaked glass is the strongest when you consider same thickness across the board, followed by heat strengthened glass and then tempered laminated glass, and then laminated, and lastly, is the annealed glass (aka normal glass).
HEAT SOAKED glass is seldom used because it is the most expensive (it is oven cooked glass).
HEAT STRENGHTENED glass is less strong than heat soaked, but it is still strong, and much cheaper than heat soaked glass. You will see it as spandrel glass in high-rises because of its ability to withstand the stress from the sun's rays and lateral pressure from wind. However, it is susceptible to breakage, but the pieces would remain in your frame rather than drop to cause injury.
TEMPERED glass is also heat strengthened, but not nearly as much as the afore mentions. It is immensely strong in the central parts but very susceptible to spontaneous breakage if disturbed at the perimeters (hence in frames), a tempered glass can spook you easily!, if its been disturbed around the perimeter before installation, it could break in the middle of the night without no one touching it. This breakage is characterized by a loud explosive sound. The pieces are harmless though, (provided it does not get in your eyes). With this short coming, lets get introduced to the tempered laminated glass;
LAMINATED TEMPERED glass: And, you guessed it! Just a sandwich made with the previous, with vinyl sheet(s) between them. This (lamination) provides the opportunity to achieve any color at all, within the color spectrum (if your pocked is deep enough) i.e. Bentley & Mercedes windshields, by simply combining colors of vinyl's for the sandwich, it (vinyl) also provides protection for the E-Coatings on the glass and most importantly, it (vinyl) keeps a firm grip on the glass, so that if/when it breaks, (unlike the previous) the splinters would not come in your eyes because it is married and will stay faithful to the vinyl. So, not a surprise you have it as windshields in your car.
With that said, your answer may lie in the contest of the question, and that's the nature of PDD! Best of luck.
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The section in Fundamentals is really helpful. Like I said before, there's lots of info about the frame, glazing thickness, area of the glazing, gaskets, and how deep the glazing rests inside the gaskets. Wind resistance doesn't have much to do with tempered glass or laminated glass per se.
Hope this helps!
Rebekka O'Melia, Registered Architect, NCARB, B. Arch, M. Ed, Step UP, Step UP ARE 5.0 Courses
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