GlassWool & RockWool

Building Insulation using Material :

A. Glasswool

B. Rockwool 

In today's advanced construction world, materials used for insulation tend to be needed in buildings for acoustics, heat insulation, etc. It forms part of the increased comfort in the exterior, interior, and decoration.

 

A. Glasswool

Glass wool is one of the insulating materials that can be used for various applications at home, be it part of the roof, ceiling, or walls.

Glasswool is a fine glass fiber interwoven in a wool mass, used in filters and as insulation.

 

Prices and kinds of Glasswool size

Our Fiberglass Glasswool is available in a variety of Density (D), length (L), and thickness (T).

Glasswool 

Type

Density

 (kg/m3)

Size

(Length x Width x Thickness)

Price in Indonesian Rupiah
IB1625  16  30 m x 1,2 m x 2,5 cm  IDR 560,000 / roll
IB1650  16  15 m x 1,2 m x 5 cm IDR 560,000  / roll
IB 2425  24  30 m x 1,2 m x 2,5 cm IDR 896,000 / roll
IB 2450  24  15 m x 1,2 m x 5 cm IDR 896,000 / roll
IB 3225  32  30 m x 1,2 m x 2,5 cm IDR 1,118,000 / roll
IB 3250  32  15 m x 1,2 m x 5 cm IDR 1,118,000 / roll
IB 4825  48  2,3 m x 1,2 m x 2,5 cm IDR 235,000 / board
IB 4850  48  2,3 m x 1,2 m x 5 cm IDR 466,000 / board

 

What is Glasswool ? 

 Glass wool is an insulating material made of melted glass as a raw material. Manufactured from borosilicate glass with significant admixtures such as silica sand, recycled glass and bonding agents.

 According to 'Haimei Zhang' (Editor of Building materials in civil engineering), 'Glass wool is a fibrous material made from melted glass or cullet as raw material. This material is available in two categories: loose wool and prime wool.

 Loose glasswool is used to make asphalt bonded glass blankets and glass wool boards. In addition, this material is also used to retain heat in the construction sector which can protect the exterior of buildings and pipelines

 

The making of Glasswool process

Glasswool is made from a thick layer of glass fiber which is oven-processed at 200°C to bind the strands of yarn together and thereby reduce sheet thickness.

In addition, the material is melted to 1100°C in an electric furnace and then conditioned in a gas fired furnace. It is a furnace product made of molten glass. From this melted glass, fibers are spun. The next process is to spin the fused glass fibers at a high speed similar to the methodology used in candy production. In the spinning process, a binding agent is mixed into it.

No CFC or HCFC ingredients are developed in the production process. The fiber is collected in the form of woven mats in a collection chamber and then transferred to an oven where it is processed under controlled conditions to the desired thickness and density.

Glasswool material is custom made in rolls or slabs. Likewise, it is also used as a component that is sprayed or applied to surfaces to be isolated. Glasswool is a versatile material used for wall, roof and floor insulation. During installation, the glass fiber must be kept dry at all times as increased moisture content can cause a significant increase in thermal conductivity thereby impairing the quality of the glasswool.

Characteristics of glasswool material

Glasswool material has special characteristics as a building material, which are as follows :

  • Heat Resistant.
  • Has excellent tensile strength.
  • Used as hollow wall and drywall insulation.
  • In addition, it is also used for roof insulation in auditoriums and suspended ceilings.
  • Prevent heat loss, especially in HVAC ducting systems.
  • Is an excellent sound insulator and is used as an acoustic barrier in partitions preventing the transmission of sound.
  • Consists of 80% recycled materials.
  • Lightweight and easy to install.
  • Does not promote the growth of fungus or flea infestation.
  • No health hazard.
  • Non-corrosive to metal.

 

Glasswool in building application 

 

 

Glass wool applications are used for structural insulation, pipe insulation, filtration and soundproofing. This material is manufactured to protect interior products and is applied in various areas of the building. In addition, Glass wool is the most common source of insulation in the ceilings of residential buildings, and also has the following applications :

01. Filling Wall Cavities and Drywall Insulation

This material was developed for insulation in steel frame structures, timber frame buildings and drywall systems. Glasswool is made using high quality glass wool and the glass mesh is faced on one side for ease of handling, and increased rigidity.

Drywall Application:
Steel frame building, timber frame structure drywall. Designed for use in hollow walls but can be effectively used over ceilings or ceilings, in conjunction with rooflines, or in masonry wall cavities.

Application of Glass wool as external protection:
HVAC and air conditioning system insulation namely : Duct wrap is a thermal insulation blanket specially designed to wrap around air conditioning ducts. External wrap around metal air conditioning ducts: Rectangular and circular heating, ventilation and air conditioning systems.

02. Pipe Insulation

This insulation is a preformed, rigid, resin bonded glass wool section of 1 meter long. The single longitudinal slit allows the open section to surround the pipe and close after placement. Standard finish options with canvas, plain and reinforced foil.

03. More Than Purlin Insulation in Commercial Buildings

Factory board is a rigid board made of non-combustible glass wool insulation. This material is generally used as a multi-purpose wall cladding and purlin roof insulation. This material is available in thicknesses of 25, 40 or 50mm.

04. Ceiling/Hunged Ceiling

Ceiling tiles are manufactured from non-combustible inorganic glass wool and bonded with an inert thermoset resin binder. Facing decorative vinyl for a long lasting result.

Application of Glass wool as Suspended Ceilings:
Ceiling suspended : Domestic Building Ceiling, Commercial, Industrial Ceiling suspended in commercial buildings such as cinemas, home theaters, recording studios.

05. Industrial Roof Insulation

Glasswool has been made from a high quality, non-flammable flexible material. Glass wool insulation with an inert binder makes this product light, safe and tough. The application is facing one side with a reinforced foil or white metalized foil. This material is applied on both sides upon request.

06. High Temperature Insulation

Glasswool is made from non-combustible glass wool, bonded with an inert thermosetting resin to form a tough and tough product. This material is odorless, inert and fully compatible with all standard building materials.

Glasswool as Thermal and Acoustic Control:
A wide variety of glass wool batts and blankets are made for thermal and acoustical control use in commercial buildings. Industrial thermal insulation for applications up to 450 . Heat conservation and control in boilers, tanks, ductwork, ovens, etc. Acoustic correction in compressor housing and engine room.

07. High Performance and Sound Proofing

The panels on the ceiling or ceiling are made of non-combustible inorganic glass wool and glued with an inert thermoset resin binder. Floor, surface with black non-woven glass grid for absorption of reverberating sound.

It is not only used in commercial buildings such as cinemas where high soundproofing performance is required, but also used in other areas where optimal sound absorption is required. Inserted in the wall/ceiling as a glass wool board, which in turn can be a home theater insulation.

Conclsion

In conclusion, glass wool is an insulating material that has varied applications in homes as part of roofs, ceilings, drywalls, home theaters, etc. This material is widely used for its great benefits in insulation, fire safety and ease of installation.

 

B. Rockwool

Rockwool is made of rock, generally a combination of basalt, limestone, and coal, which is heated to a temperature of 1,600 degrees Celsius so that it melts into lava, in this melting state, the rock is centrifuged to form fibers. After cooling, this collection of fibers is cut to the size that suits your needs. 

 

The use of Rockwool is almost the same as Glasswool, only Rockwool has a higher density than Glasswool, the lowest Rockwool density starts from 60 kg/m3

Price and kind of Rockwool Size

 

 Rockwool 

Type 

Density

 (kg/m3)

Size

(Length x Width x Thickness)

Price in Indonesian Rupiah
B650  60  1,2 m x 0,6 m  x 5 cm  Rp 140.000 /Board
B850  80  1,2 m x 0,6 m x 5 cm  Rp 152.000 / Board
B1050  100  1,2 m x 0,6 m x 5 cm  Rp 168.000 / Board
WM 850  80  5 m x 0,6 m x 5 cm  Rp 690.000 / roll
WM 1050  100  5 m x 0,6 m x 5 cm  Rp 760.000 / roll


The uses of Rockwool.

The use of Rockwool is almost the same as Glasswool for heat insulation of building walls, refrigerator heat / cold insulation and roof heat insulation, often rockwool is also used as a hydroponic planting medium that is able to absorb a lot of liquid fertilizer as well as air that helps root growth in nutrient absorption, starting from from the nursery stage to the production phase. The advantages of using rockwool as a planting medium are::

  • Environmentally friendly
  • Does not contain disease-causing pathogens
  • Capable of holding water up to 14 times the capacity of soil
  • Can minimize the use of disinfectants
  • Can optimize the role of fertilizer.