Statewide Roofing installs quality ceramic tiles in Oklahoma. Interlocking ceramic tiles create a stunningly beautiful roof that can last for more than 100 years. But this type of roofing requires a beefy support structure. “Lightweight” tiles can weigh six pounds per square foot while heftier types weigh in at up to 18 pounds per square foot. For an easier load, try metal roofing that mimics tile, which may weigh as little as one pound per square foot.
Roof tiles are designed mainly to keep out rain and are traditionally made from locally available materials such as clay or slate. Modern materials such as concrete and plastic are also used and some clay tiles have a waterproof glaze. A large number of shapes (or “profiles”) of roof tiles have evolved including:
- Flat tiles ceramic tiles– the simplest type, which is laid in regular overlapping rows. An example of this is the clay-made “beaver-tail” tile (German Biberschwanz), common in Southern Germany. Flat roof tiles are usually made of clay but may also be made of stone, wood, plastic, concrete, or solar cells.
- Imbrex and tegula ceramic tiles, an ancient Roman pattern of curved and flat tiles that make rain channels on a roof.
- Roman tiles ceramic tiles – flat in the middle, with a concave curve at one end at a convex curve at the other, to allow interlocking.
- Pantiles ceramic tiles– with an S-shaped profile, allowing adjacent tiles to interlock. These result in a ridged pattern resembling a plowed field. An example of this is the “double Roman” tile, dating from the late 19th century in England and USA.
- Mission or barrel ceramic tiles are semi-cylindrical tiles laid in alternating columns of convex and concave tiles. Originally they were made by forming clay around a curved surface; often by a log or the maker’s thigh. Today barrel tiles are mass-produced from clay, metal, concrete or plastic.
- Interlocking ceramic tiles are similar to pantile with side and top locking to improve protection from water and wind.
- Antefixes ceramic tiles: vertical blocks which terminate the covering tiles of a tiled roof.
Roof tiles are ‘hung’ from the framework of a roof by fixing them with nails. The tiles are usually hung in parallel rows, with each row overlapping the row below it to exclude rainwater and to cover the nails that hold the row below. There are also roof tiles for special positions, particularly where the planes of the several pitches meet. They include the ridge, hip, and valley tiles. These can either be bedded and pointed in cement mortar or mechanically fixed.
Similarly to roof tiling, tiling has been used to provide a protective weather envelope to the sides of timber frame buildings. These are hung on laths nailed to wall timbers, with tiles specially molded to cover corners and jambs. Often these tiles are shaped at the exposed end to give a decorative effect. Another form of this is the so-called mathematical tile, which was hung on laths, nailed and then grouted. This form of tiling gives an imitation of brickwork and was developed to give the appearance of brick, but avoided the Brick Taxes of the 18th century.