Why Should You Choose A Tile Roof?
Roof tiles are typically made from locally available, natural roofing materials such as slate, clay or terracotta. Other more modern materials include concrete, plastic, and blends. They are normally hung in parallel rows from the framework of a roof and fixed with nails. Each row is designed to overlap the row below to cover the nails and allow rainwater to flow down. Traditionally slate was used for tiles in areas near local supply sources although it is now less common. The global clay and concrete tile roofing market has grown steadily at an estimated 3.3% annually, outgrowing most other types of roofing and encompassed 3.8 billion square meters of tiles in 2014.
Benefits Of A Tile Roof
– Clay and concrete materials used for roof tiles are resistant to rain, hail, fire, and excessive moisture. Roof tiles have a Class A fire resistant rating as a system as well as a product. They are designed to withstand extremely high winds and tested in wind speeds of up to 150 mph. Roof tiles often have a tough outer-shell for effective water shedding and a waterproof under-layer that acts as an extra shield for optimum hail resistance. Concrete and clay roof tiles have been tested to withstand the force of hailstones the size of golf balls.
– Roof tiles come in a wide variety of styles and colors to enhance the architectural roof style of any home and increase its value.
– Roof tiles conserve energy in hot and cold climates as the air that freely circulates under the loosely laid tiles keep homes cooler in summer and warmer in winter.
– Roof tiles provide homeowners with increased value as more credits are awarded on appraisal, and houses sell faster on average in comparison with houses with other roofing materials such as shingle and asphalt.
– Roof tiles have long term durability and the lowest life cycle cost of all other roofing materials. Proof of this is that tile roofs that are centuries old are still found to endure today.
– Tile roofs have been tested for seismic resistance. Research results from USC show that concrete and clay tile roofs exceed the building material load requirements when installed according to current requirements for fastening.
Shapes or ‘Profiles’ of Roof Tiles
During the years a large number of different shaped roof tiles have evolved including:
– Flat Tiles
Flat tiles are the simplest and most common type of roof tile, usually made from clay and laid in overlapping rows. A popular example is the ‘beaver-tail’ clay tile or ‘Biberschwanz’ in German, which is a common type of tile used in Southern Germany. Flat roof tiles are also made from wood, concrete, stone or plastic and some have solar cells embedded that generate energy.
Pantiles have an S-shaped profile that interlock with adjacent tiles resulting in a ridged pattern that resembles a plowed field. The Double Roman tile is an example of Pantile that dates back to the late 19th century in the US and England.
– Interlocking Roof Tiles
Interlocking roof tiles are similar to Pantiles but have top and side interlocking for improved protection from wind and rain.
– Roman Tiles
Roman tile profiles are flat in the middle with a convex curve at one end and a concave curve at the other end for improved interlocking purposes.
– Mission or Barrel Roof Tiles .
These tiles have a semi-cylindrical shape and are laid in alternating columns of concave and convex shapes. Traditionally these tiles were made by forming and shaping clay around a log or any curved surface, often using the tile maker’s own thigh. Today they are mass produced from concrete, clay, plastic or metal roofs.
– Tegula and Imbrex
Flat and curved tiles laid in an ancient Roman pattern to form rain channels on a tile roof.
Antefixes are vertical blocks used to terminate the covering tiles on a tiled roof.