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Plasterboard, also known as drywall or gypsum board, is a construction material used for creating interior walls and ceilings. It is made of gypsum plaster that is pressed between two thick sheets of paper or fiberglass matting.
The gypsum core gives plasterboard its strength, durability, and fire resistance. The paper or fiberglass matting provides a smooth surface that can be painted or wallpapered.
Plasterboard is available in various sizes and thicknesses, making it versatile for different types of constructions. It is easy to cut and install, making it a popular choice for DIY enthusiasts and professional builders alike.
Some of the advantages of plasterboard include its affordability, ease of installation, fire resistance, and acoustic insulation. However, it may not be suitable for areas with high moisture levels or humidity, as it can absorb water and become damaged.
1. Fire resistance
Since gypsum itself is a fire resistant material, gypsum plasterboard can also be fire resistant for up to four hours. The reason behind this is the presence of water in gypsum offerings. When water comes in contact with fire, it starts evaporating. It helps the board to form a protective layer which helps to prevent the fire from spreading over a period of time.
2. Non-combustible
When a gypsum board comes in contact with fire, it starts the process called calcination. Calcination is the process by which the board dehydrates, helping it to form an additional layer. It makes the wall non-combustible for several hours and always remains at room temperature.
3.Damp Proof / Waterproof Gypsum Board
The green appearance is mainly made of building gypsum with an appropriate amount of fiber reinforcing agent and waterproof additives.
Suitable for wet and semi exposed areas, with a tileable surface.
Scope of application: kitchen, bathroom, laundry, garage, bathroom, laundry, humid environment, etc.
4. Acoustic properties
Gypsum board has an inherent degree of acoustic insulation. These are more effective compared to conventional walls of the same thickness. This is because they contain sound interruptions and reduce reverberation.
For example, a plasterboard of around 60 mm is as effective as an 85 mm masonry wall in terms of sound insulation. Users can also choose to use acoustic gypsum board to further improve performance.
5. Thermal performance
Gypsum boards contain water of crystallization. They also contain cavities that allow the user to achieve the right balance between humidity and temperature. If you add fiberglass, it will further prevent fire as the fiberglass helps maintain the integrity of the board. The additional insulation acts as a vapor barrier and helps control humidity in the room.
| Item | Standard Value | Test Value | ||||
| Density (kg/m²) | — | Thickness | Regular | Fire Resistant | Water Resistant | |
| ≯ 9.5kg/m² | 9.5mm | 7.5 | 7.5 | 7.5 | ||
| ≯ 12.0kg/m² | 12mm | 9.5 | 9.5 | 11.5 | ||
| Flexural Strength(N) | Parallel | ≮ 360 | 9.5mm | 560 | ||
| ≮ 500 | 12mm | 700 | ||||
| Cross | ≮ 140 | 9.5mm | 180 | |||
| ≮ 160 | 12mm | 240 | ||||
| Surface Paper Sticking theCore Material | Unexposed | Unexposed | ||||
| Stability with Fire (Min) | Fire Resistant | ≮ 20 | / | / | ＞20 | / |
| Water Absorption (%) | Water Resistant | ≮ 10 | 9.5mm | / | / | 6.8 |
| 12mm | / | / | 4.2 | |||
| Radioactivity | Internal | IRa≤1.0 | ＜1.0 | |||
| External | Ir≤1.3 | ＜1.0 | ||||
| Note | Executive Standard : GB/T 9775-2008 | |||||
Common specifications: 9mm,9.5mm,12mm
Ordinary gypsum board sound insulation wall composed of double-layer separation type and hollow strip board has the same effect asthe brick wall of 24cm
Ordinary gypsum board has a wide range of applications
Used for hotel, restaurant, shopping mall, office, theater, studio, cinema and school and other buildings partition wall application, ceiling application.
