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Plasterboard the Versatile Sheet Material


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Plasterboard

Standard plasterboard is a sheet material made up of aerated gypsum plaster sandwiched between layers of thick paper liner. Commonly used in the home to cover stud partitions, form ceilings, and for dry lining walls. It is suitable for most applications where normal fire, structural and acoustic levels are specified. When fixed, it is ready for decoration or plaster finish.

It is produced in standard stock sizes, and is relatively cheap to buy compared to other sheet materials. Within the DIY market two sizes are generally used, 2400mm x 1200mm and 1800mm x 900mm, with thicknesses of 9.5mm and 12.7mm, though many other sizes are also available.

Despite the fact that plasterboard provides a totally smooth finish, the joint between the boards are difficult to hide. To overcome this problem the boards would normally be finished with a layer of plaster skim 2 to 3mm thick.

However, in more recent years due mainly to the introduction of the tapered edged plasterboard, it is possibleto apply a finish such as vinyl wall coverings or paint without the need to plaster.
Tapered edged plasterboard is as the name suggests, standard plasterboard with its vertical edges tapered so that the thickness at the edges are reduced. The principle being that when the two adjoining boards meet the tapered portions create an indentation. The joint is then taped, and the depression filled with a thin layer of plasterboard joint filler which is applied with a wide scraper. When dry, the filler is lightly sanded down so that the surface of the filler finishes flush with the face of the boards producing a smooth flat finish hiding the joint.

 

 


 

In addition to different sheet sizes, there are also different types of plasterboard depending on any particular requirement.

Standard Plasterboard

This is generally used for dry lining walls and ceilings.

Vapour Check Plasterboard

Where the combination of a vapour barrier, reflective thermal insulation, wall and ceiling lining is required, vapour barrier plasterboard meets this requirement all in one. This is achieved by a metalized polyester film on the reverse of the board, which prevents warm moist air condensating on or inside structural wall materials, as well as reflective insulation.

Thermal Insulation Board

Thermal Insulation Board is the standard plasterboard, with an additional layer of insulating material such as Polyfoam Linerboard (extruded polystyrene) is bonded onto the rear face.

Acoustic Plasterboard

Acoustic Plasterboard has a higher density core, and is designed for use on walls and partition where a greater level of sound insulation is needed.

Fire Resistant Plasterboard

Fire resistant plasterboard has glass fibre and other additives in the core, and used in partitions, wall lining and ceiling systems to give increased fire protection. It is also used to clad structural steel.

Water Resistance Plasterboard

Water resistance plasterboard has water repellent additives in the core and paper liners. Suitable as a base for tiling wet use areas. Also used for external soffits in sheltered positions.

Impact Plasterboard

Impact plasterboard has a high dense core, with glass fibre and other additives which is designed to resist impacts and knocks.

 


 

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