What are overlapping tiles called?
imbrex
The imbrex and tegula (plural imbrices and tegulae) were overlapping roof tiles used in ancient Greek and Roman architecture as a waterproof and durable roof covering.
What is a tile Headlap?
The term ‘double lap’ is applied to the way that the plain tiles are laid on the roof to create an effective barrier to water. This means that at any point of the roof there is at least a double layer of tiles, hence the term ‘double lap’ – at the headlap there are actually three layers of tiles (see below).
What is single and double lap roof tiling?
The key difference between single camber and double camber clay tiles is their shape. Single camber tiles are curved in one direction – on the long edge. Double camber tiles are curved in two directions from top to bottom (like single camber tiles), and also from left to right.
Do you need to nail roof tiles?
It is not necessary to nail every single tile to the battens. Every tile of the two rows at the eaves, those up the verges, and along the two rows of the ridge should be nailed, but beyond that it is only necessary to nail every fifth tile horizontally and every third tile as you move up the roof.
What is double lap roof tiling?
Double lap tiling is the traditional covering for pitched roofs, mainly using plain tiles. Each tile has at least two nibs on the underside of its head so it can be hung on support battons that are nailed over the rafters. Generally, unless the roof exposure is high, only every fourth course of tiles is nailed.
Why are roof tiles curved?
Tile roofing, unlike asphalt shingles, does not lie flat. These tiles are curved and layer over each other to create clear groves that direct water. A tile roof should ideally last longer than the structure itself.
How much does it cost to tile a roof?
Roof Tiling Cost per m2 On the average, roof tiling cost around $80 to $120 per square metre. Rates for roof tilers are higher because it’s more risky and labour-intensive. Keep in mind that roof tiling labour costs also depend on your location.
What’s the minimum pitch for a tiled roof?
What is the Minimum Roof Pitch for Plain Roof Tiles? In most instances, 35° will be the minimum pitch for plain concrete tiles, which is another reason why the material is the preferred choice for those who use them regularly.
How much should roof tile overlap?
This is normally specified with the tile manufacturer and it’s advisable to check how much they say a roof tile should overlap, normally on a smooth faced tile the overlap is 75mm (3″) and on granular or sandfaced tiles its 100mm (4″) however if the roof is shallow pitched, is facing a windy direction or will be prone …
What is single lap roof tiling?
Single lap tiling Most single lap tiles have a tongue-and-groove joint along the side edges to form a series of interlocking joints. There is a reduction in weight of the overall roof covering compared to double lap tiling, but the batton size will be larger.
What are the disadvantages of tile roofs?
The Cons of Tile Roofing
- Tile is a heavy material – Because of how heavy a tile roof can be, it’s important for your home to have the proper structural reinforcement to safely support it.
- Tile roofing can be expensive – Clay or concrete roof tiles can cost twice as much as asphalt shingles.
Which tile is best for roof?
Here are the main roofing tiles.
- Metal Tiles. Metal tiles are similar to metal roofs in that they share most of the advantages.
- Copper Tiles. Copper roofs are known to last for more than a century before they need to be replaced.
- Stone Tiles.
- Ceramic Tiles.
- Polymer-Sand Tiles.
- Composite Tiles.
- Bituminous Tiles.
- Concrete Tiles.
What’s the difference between single lap and double lap tiles?
Double lap and single lap tiling Traditional plain tiles Traditional double lap plain tiles are one of the oldest forms of roof covering in the UK. The term ‘double lap’ is applied to the way that the plain tiles are laid on the roof to create an effective barrier to water. Plain tiles, like slates, are uniform in shape and have no
What kind of slate to use for double lap roof?
Natural slate, being thin, flat rectangles of stone, are only weather resistant when laid with a double lap giving the traditional half bond appearance. Fibre cement slates and some resin slates are also laid in the same way.
What’s the minimum pitch for single lap tiles?
Single lap tiles should be mechanically fixed with either a clip or nail. Typical single lap tiles include: Roll type tile. Minimum pitch: 30-degrees. Head lap: 75 mm. Side lap: 30 mm. Gauge: 343 mm. Linear coverage: 300 mm.
How many layers of tiles are in a headlap?
means that at any point of the roof there is at least a double layer of tiles, hence the term ‘double lap’ – at the headlap there are actually three layers of tiles