Wind forces on roof tiles laid over a low permeability underlay can be separated into two principal mechanisms.
Wind roof tiles.
If a tile is broken debris from a single tile can impact other tiles on the roof which can lead to a progres sive cascading failure.
Roof tiles are used widely in the southwest because they are a more energy efficient roofing option than asphalt or other roofing materials.
Although the most commonly recognized tile roof shingles are the wave shaped spanish tile roofing tiles are available in a wide variety of styles and colors.
The forces due to the airflow over the steps formed by the tile courses referred to.
Roofs are very susceptible to wind damage in part because high winds do not hit roofs uniformly.
As with lifting curling can loosen nails and break seals.
Concrete and clay tile roofing resists hurricane force winds.
Frsa tri alliance florida high wind tile installation manual revised 5th edition 2014 tri alliance has partnered with the florida roofing sheet metal air conditioning contractors association inc.
The roof has two water barriers.
Each has different wind resistance characteristics.
Natural air ventilation under the tile created by its high porosity and installation techniques used help to relieve wind stress.
The sheathing is the fastened to the rafters it acts like a top layer of the roofing.
Tile roofing for high wind regions key issues missiles.
Frsa for nearly two decades on developing installation manuals that represent proper installation practices industry standards and the latest.
Tile roofs are very vulnerable to breakage from windborne debris missiles.
Tiles can curl in the wind when they are hit from the side.
In regions prone to tornadoes hurricanes or extreme winds roof tile provides one of the best defenses against wind related property damage.
If wind speeds are very high even new secure shingles can tear away.
Even if that doesn t happen curled tiles will no longer keep water and debris from getting to your roof.
The sheathing and the other part with shingles and tiles.
Other wind damage to a roof includes damage caused by falling objects and debris such as tree branches and downed powerlines.
When roofing materials are damaged by winds the edges or loose spots have wind get underneath them and push up the shingles or other material which then gives the wind more ability to grab on to them and push them up and off the roof creating a sort of chain effect as the roofing materials peel off.
Luckily curled tiles are relatively easy to spot.
High winds can lift roofing material away or damage it with debris blown from elsewhere.
When the wind pressures the roof it lifts the sheathing off the roofs structure and frame.