Drywall, also known as "plasterboard," "wallboard," or "gypsum board," is a panel widely used in the interior walls, ceilings, and partitions of buildings. It is primarily composed of a gypsum core and specialized facing paper.
The following is a comprehensive introduction to drywall:
Rapid Construction (Dry Construction): Compared to traditional plastered walls, drywall installation is fast, requires no drying time, and significantly shortens the project timeline.
Light Weight: Reduces the load on the building structure.
Good Fire Resistance: The gypsum core contains crystalline water, which is released upon exposure to fire, effectively delaying temperature rise and providing a certain fire resistance rating.
Smooth Surface: Easy to apply joint compound and decorate with paint, wallpaper, etc.
Offers Certain Sound Insulation and Thermal Insulation Properties.
High Malleability: Can be cut, carved, and used to create curved walls and arched ceilings.
Based on function and characteristics, the main types of drywall include:
Type | Characteristics | Primary Applications |
|---|---|---|
Regular Drywall | Gray face paper, cost-effective, the most widely used base material. | Base layer for interior partitions and ceilings (not suitable for damp environments). |
Moisture-Resistant Drywall | Green face paper, gypsum core and paper are waterproof-treated, offering good moisture resistance. | Areas with higher humidity like kitchens, bathrooms (as a base for tiles). |
Fire-Resistant Drywall | Red or pink face paper, the core is reinforced with materials like glass fibers for a high fire resistance rating. | Locations requiring fire resistance, such as passageways, pipe shafts, and encasing load-bearing walls. |
Moisture & Fire-Resistant Drywall | Possesses both moisture-resistant and fire-resistant properties. | Spaces requiring both moisture and fire resistance. |
Decorative Gypsum Moldings / Rosettes | Pre-made into various patterns, installed by direct adhesion. | Decoration around ceilings, light coves to enhance aesthetics. |
Install Light Gauge Steel Stud Framework: Install track channels (top and bottom), vertical studs, and horizontal bridging channels according to layout lines on the floor to form the wall frame.
Install Boards: Fix drywall panels to the studs using drywall screws. Typically, double layers are installed with staggered joints to increase strength and flatness.
Treat Joints: Fill joints between panels with joint compound, then embed joint tape (paper or fiberglass mesh) to prevent future cracking.
Surface Finishing: Apply joint compound over the entire wall surface (usually 2-3 coats), sand smooth, and then proceed with final decoration like painting or wallpapering.
Check Appearance: The surface should be flat, without damage, cracks, or stains. The paper should be firmly bonded to the gypsum core, without bubbling.
Assess Weight: For panels of the same specification, high-quality drywall has uniform density, feels solid, and is not excessively light.
Check Markings: Choose well-known brands. Pay attention to information on the packaging like manufacturer, trademark, quality grade, and production date.
Select Type Based on Usage Environment: Never use regular drywall in damp areas, as it can absorb moisture, deform, and lose strength.
Advantages:
High construction efficiency, dry construction methods.
Relatively low cost.
Good fire resistance, sound insulation, and thermal insulation properties.
Good decorative effect, smooth surface.
Disadvantages:
Limited moisture resistance (regular type), can be damaged by prolonged water exposure.
Lower hardness, less impact-resistant than brick walls; hanging heavy objects requires special treatment (e.g., fastening to studs or using specific anchors).
Improper joint treatment can lead to cracking; requires skilled workmanship.
We hope this introduction to drywall is helpful! If you have more specific questions, such as about a particular brand, construction details, or special types of drywall, feel free to ask.
