How to Identify Quality/Original Stone Coated Roofing Tiles

The following steps will help to Identify Quality, Stone Coated Roofing Tiles.

1. Check the back of the roof tile, confirm whether

The Manufacturer's name,
Distributor's name and
ISO Number

is fully inscribed at the back of the stone coated roofing tiles. If you can't find this information, it is an indication that the stone coated roofing tile is "inferior" and it will surely fade off in short period of time.

2. Ask the distributor or supplier to provide the manufacturer's full contact.

Failure of your distributor or supplier provides the manufacturer's contact, is an indication that they are supplying you with "inferior" stone coated roofing tiles.

3. The thickness of the stone coated roofing tiles must be 0.55mm in gauge

4. The price range is an average of;

#3,200(New Zealand and Belgium),
#2,600 to #2,900(South Korea) per sqm

And for the design that comes with two color combination,

i.e. Shingle is #2900 per sqm.

N.B:- Any price far below this range is a "fake/inferior" stone coated roofing tile.

5. The manufacturer's warranty must be 50yearrs, no less.

6. Ask the distributor to provide the certificate of Origin from the manufacturer, if they can't provide that, it means they deal with "fake/inferior" stone coated roofing tile.

7. Two pieces of the stone coated roofing tile make a sqm.

The points highlighted above are the things to watch out for before purchasing any stone coated roofing tiles for your project.

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Construction Procedure of Surface Road Side Drainage-PART 1 (with picture)

Surface water ( i.e., rain water) that falls on the ground surface such as; open field, paved areas or road surface, roof tops etc are channeled to a main drain naturally or through a constructed channel which is referred to as drainage. Procedure for construction of a common drainage (trench) (1m x 1m U drainage) (reinforced). includes; I. Marking Of Alignment: The surveyor marked out the alignment for the trench to be dug. II. Digging/Excavation: The surveyor marked out the dept of the trench to be excavated with a mechanical excavating machine. For a 1m x 1m drainage, the mathematical process of obtaining the required dept is to sum together the dept of the required drain + base + blinding. For dept: A drain of dept1000 mm, base of 150 mm and blinding of 50 mm. Hence 1000mm + 150mm + 50mm = 1200mm (1.2 m) So an excavation of 1200mm (1.2m) is required from the to level of the road surface. For width:

Construction Procedure of Surface Road Side Drainage-PART 2 (with picture)

V. Next step is laying of concrete base on the blinded surface and the positioned reinforcement. A concrete base of 150 mm is to be laid or cast on the blinded floor, concrete grade C20 of ratio 1:2:4 is allowed (See concrete grading and mix ratio). A guiding panel is placed into position to guild in the laying of the concrete base in order to achieve a uniformly alignment base edge, thickness and width, also to manage concrete material while pouring. The base is cast with the U shape reinforcement bottom in between the concrete base achieving concrete cover below and above. VI. After setting and drying of the concrete base, next is to position the side wall panel form work. The floor base is marked to give the required one meter (1000 mm) internal width where the panel will be positioned. The panel wall spacing is 100mm, and wall height of 1000mm (1 meter), the panel is lubricated, clipped and prepared to accept the Concrete.

Ring / Pipe Culverts Construction procedure

Culvert is an open/close drain structure that allows water to flow below a road. It’s like a tunnel carrying a stream of water flow. A Ring/Pipe Culvert Procedure for construction of a common Ring/Pipe Culvert (road junction culvert) includes; I. Marking Of Alignment: - The surveyor marked out the alignment for the trench to be dug. II. Digging/Excavation: The surveyor marked out the dept of the culvert to be excavated with an excavating machine. For a 1m pipe culvert, the mathematical process of obtaining the required dept is to sum together the total width of the pipe + base + blinding. For dept: A pipe of width 1000 mm, base of 150 mm and blinding of 50 mm (though optional). . Hence 1000mm + 150mm + 50mm = 1200mm (1.2 m) So an excavation of 1200mm (1.2m) is required from the to level of the natural ground (sub grade level) surface. For width: A minimum of (2.5 x width) m is advisable.

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