What are the different types of roof tiles?

Roof tiles are classified according to their profiles.
There is a wide range of roof tiles, in different colours, sizes and shapes. Roof tiles can be classified according to their profiles :

• Hollow tile :
  Tile with curved drainage part. This type of tile is suitable for roof pitches down to 25°.
• Hollow interlocking tile :
  Tile with curved drainage part and a head interlocking . This type of tile gives an undulating effect to the roof and is suitable for low and high-pitched roofs. Minimum pitch (with underroof) between 22° and 25°, depending on the type of tile.
• Slightly curved interlocking tile :
  Tile with flat interlockings and flat drainage part. The tile has a nosing, which gives a slightly undulating effect to the roof. This type of tile is suitable for low and high-pitched roofs. Minimum pitch between 20° and 25° (with underroof), depending on the type of tile.
• Flat tile with interlockings :
  The drainage part has a central ridge, which creates a major mechanical resistance. The shape of the tile gives a slightly undulating effect to the roof. This type of tile is suitable for roof pitches down to 25° (with underroof).
• Flat interlocking tile :
  Flat tile with interlockings and flat drainage part. These tiles make the roof look flat. This type of tile is suitable for roofs with a minimum pitch in between 24° and 35° (with underroof), depending on the type of tile.
• Plain tile :
  Plain tiles are small flat tiles that are laid in broken bond. Because of the heavy overlapping, only 1/3 of each tile is visible. These tiles make the roof look flat. This type of tile is only suitable for roofs with a minimum pitch of 35° (with underroof).

© 2008 by Wienerberger Ltd and you can read more from them by simply clicking here……….

Funny poems

‘If at first you don’t succeed’,
Said Robert the Bruce the King.
If at first you don’t succeed,
Then you shouldn’t try skydiving.

*****************************************************

A tutu’s
A skirt
For girls who do twirls

A toucan’s
A bird
Who shouts about stout

The can can’s
A dance
All frills and cheap thrills

A tin can
Contains
Baked beans or sardines

And Tintin’s
Plainly
A defective detective.

Cartoon of the Day

QUOTES of the Day

• It is a profitable thing, if one is wise, to seem foolish.
  Aeschylus
  Greek tragic dramatist (525 BC – 456 BC)
• It takes only one drink to get me drunk. The trouble is, I can’t remember if it’s the thirteenth or the fourteenth.
  George Burns US actor & comedian (1896 – 1996)
• All existing business models are wrong. Find a new one.
  Hugh Macleod, in his book How To Be Creative
• In times like these, it helps to recall that there have always been times like these.
  Paul Harvey
• Wine makes a man more pleased with himself; I do not say that it makes him more pleasing to others.
  Samuel Johnson
  English author, critic, & lexicographer (1709 – 1784)