Roof Tiles Wind Speed

There are two types.

Roof tiles wind speed.

Ul s test method ans ul 2390 has found the wind resistance of asphalt shingles with sealed tabs to be between 60 to 150 mph. Likelihood of shutter puncture 100 120 mph bsw. Minimal risk except for long flight distances 45 m in exposure c and d. Craftsmanship is also important.

So what wind speeds do you need to be worried about. Furthermore the roofing designer or specifier sometimes assumes if there is a design wind speed requirement of 90 mph then the roof system must have a 1 90 rating which is not always true at least not for the reason they think maybe for tall buildings or if other factors exist. Recently i have received reports from some engineering firms hired by the insurance companies that have been stating in unison that wind does not affect the structural integrity of a cement tile roof. Assessment of wind borne tile impact on approved missile impact resistant products presentation given 12 11 2004 to hrac paper under peer review in wind and structures key findings re.

Roofing recommends that the advice of a suitably qualified building engineer is sort in assessing the wind classification of a particular site. Monier guide to wind classification 3 what is wind classification step 1. Some metal roofing can withstand wind speeds of more than 150 mph. Geographic wind speed region determining a wind speed classification the wind classification relates to gust.

As you may all know we have suffered several hurricanes over the past 2 years. If you want the best roof for high winds the decking under the shingles needs to be strong and sturdy and your fastners should be high quality. Consumers can check individual ul listings usually present on the product packaging to find out the wind velocity resistance of individual brands. There are currently no testing standards requiring roof tile systems to be debris impact resistant.

The cost of the roofs with a wind resistance is higher than the average one. 45 57 mph. A standing seam roof and the water shedding roofing system. Independent testing sponsored by tri alliance shows that with proper attachment clay and concrete roof tiles can sustain winds in excess of 125 miles per hour that would strip off most other roofing materials.

Alot of the homes in this area have cement tile roofs. It all depends on the quality of the chosen material and the amount of the resistance against the wind. Proper installation will only end the damage caused by high winds. Whilst the over 60 degree statement does agree with bs5534 below 60 degrees it only complies in low wind uplift situations.