BITUMEN ROLL SHEET

BITUMEN ROLL SHEET

We are Manufacturer of Bitumen roll sheet-bitumen membrane roof sheet

We Keeping you covered to meet the diverse requirements of the roofing and waterproofing industries, consistent bitumen quality and effective logistics are vital factors.

The vast majority of the world’s bitumen supply – around 85 percent – is used in road applications. But bitumen’s properties also make it ideal for use in a wide range of applications. For example, bitumen is used to protect against moisture, sound, electricity and fire in materials such as pond linings, sound dampening panels, high-voltage electrical cables and wind barriers for buildings. In fact, after roads, the segment that uses the most bitumen each year – around 10 percent – is the roofing industry.

Bitumen roofing products can be applied using cold, soft or hot techniques. Cold and soft applied products dominate the marketplace. In Europe, soft-applied products, such as polymer modified bitumen membranes, are widely used in the low slope or flat roofing segment of the market.

The roofing industry spans a wide range of products that need to meet various requirements, and just as in the road industry, bitumen plays an important role in shaping the characteristics of the end product in diverse applications.

A bitumen roofing membrane usually contains limestone filler and a very high proportion of bitumen – around 65-70 percent. Low-temperature flexibility, heat resistance, the ability to withstand ageing and fire retardancy can all be affected by bitumen choice. Moreover, it represents the main mechanical characteristic of the membrane, making it a key factor in the processability of the end product.

As the roof is the most exposed part of a building, it must be able to withstand tough conditions, from rain, wind, snow and ice, to heat and sunshine on summer days. To achieve greater durability, polymers are often added to bitumen roofing membranes.

The advantage is that the polymer modification increases the bitumen’s elasticity at both low and high temperatures and results in increased joint strength. Polymer modification also makes it possible to use softer bitumen and therefore improve the ageing resistance while still maintaining good low temperature properties.

Teaming up for success

Given the significant influence that bitumen has on the qualities of the end product, it is essential to have a high quality, stable bitumen supply to achieve product consistency. Our aim is to always work with a partner that is trying to achieve a stable quality. Bitumen is an important part in our product .If we have bitumen that is stable from the start, we don’t have to alter the polymer modification recipe, and our clients feel they are always getting the same quality. 

Material of making roll sheet polymers:

  1. Bitumen 60/70
  2. Polyester
  3. Tissue
  4. Aluminium 14~16 micron.
  5. Plastic of back side.
  6. Talcum powder
  7. APP
  8. Gunny
  9. Roll sheet with blown bitumen (mazut).

By heating mazut the hydrocarbon will vapor and remain is something like bitumen since softening point is between 60~70.

Material of making bitumen roll sheet by blown bitumen(Mazut):

  1. Blown bitumen
  2. Polyester
  3. Tissue
  4. Aluminium liner 14~16 micron
  5. Plastic sheet of back side.
  6. Talcum powder

Part list of bitumen membrane roll machine is consist of :

  1. Mixer of making primer
  2. Elevator
  3. Bitumen pump
  4. Water pump
  5. Conveyer
  6. Oil boiler
  7. Air conditioning system.
  8. Reactor of converting bitumen to blown bitumen

Machinery of producing bitumen membrane sheet is made below items:

  1. Simple
  2. Dual layer
  3. Single layer
  4. Aluminum coated

Input of the machine is tissue, polyester and aluminum sheet and primer material (made by mixing) or blown asphalt. During the process of the raw material will convert to bitumen roll sheet and the finish product is 10 meters of membrane sheet.

Specification of the production line:

The main specification of the machine is simplified of work and it is important items that reduce failure of machine since complicated production line has too much failure during production and every time needed spare part.

  • Dimention: L:35 meter, W: 1.6meter and maximum height are 5meter.
  • It is made from the nut and screw and easy to install and dismantle. So, replace of spare parts are too easy.
  • Motors and gearboxes also bearings and other parts of the machine is high quality and output.
  • Rollers of transferring the bitumen roll sheets are industrial seamless pipe. It is well polished and adjusted with double flange to take the high pressure on.
  • Length of cooling water is 11meter to cool down the membrane sheet at the pool.
  • The capacity of the elevator is 30 meters and while it is getting full production line will not stop.
  • Procedure of rolling and cutting is automatic.
  • Polymer pad is dual layer and it is preventing from quick cooling. It is possible to connect to boiler too.

Procedure of producing bitumen roof sheet

Depend on type of the bitumen sheet (single or twin later) tissue and polyester distributing to bitumen pads. Then it smears with blown bitumen. Thickness of the roll sheet distinguished by output nuzzles and in the upper level of bitumen pad allocated. After that aluminium layer will smear to the material and then stick and transfer to water pool/after passing the waterfall during the rolling will become cool and eliminate on the back side, then come to an elevator. The elevator is supporting to reserve the roll sheet in length and by fin fan blowing to make the roll sheet keep dry.

All procedure is automatic.

Sealing of building material till 40 years before being traditional with asphalt and gunny and bitumen, but after the creation of roll sheet step by step replaced two old types. Today’s most of the building starting from the foundation and isolation to services and roofs preparing by the bitumen roll sheet.

All isolation is supposed to prevent leak of water. It is a powerful product that by heating of back side sticking to the surface. Shelf time of roll sheet is 10 years.