Guest User
9/26/2004
Hi. I'm doing my science fair project on what types of roofs hold up the best against different strengths of winds. I was just wondering if you could send me any info you have on this topic.Thanks
Guest User
9/26/2004
Hi. I'm doing my science fair project on what types of roofs hold up the best against different strengths of winds. I was just wondering if you could send me any info you have on this topic.Thanks.
Guest User
9/27/2004
Tori, Good luck on your project. This is not the world's easiest topic though. The success of any roof system in a windstorm depends heavily upon proper installation and also the condition and geometry of the roof deck itself. There are many different types of metal roofing and various sytems perform differently based upon panel profile, metal thickness, fastening method, etc. There are various tests used to determine the wind and uplift resistance of roofing. Generally, the most severe ones are some tests which go up to 90 psf of uplift pressure. I hope this helps.
Guest User
9/27/2004
I am using standing seam metal roofs, asphalt shingles, and barrel tile. I just wanted to know about how high the wind speed could be for each of them before they start falling apart if they are all installed 100% properly?
Guest User
9/27/2004
Tori, This is an incredibly complex subject which has a lot to do with the exact product. Generally, though, most standing seam roofs have passed wind testing the equivalent of 200+ mph. In the recent storms in Florida, many tile roofs became dislodged and were reported often as "flying missiles" in winds of 130+ mph. Asphalt shingles tend to dramatically lose wind resistance with age. I often seen asphalt shingles in my area of the country suffer severe damage in winds of 50 - 60 mph.
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