When and where to use moisture resistant drywall?

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Brief description of the moisture-resistant plasterboard

These systems include, in addition to drywall sheets, all the necessary elements for the fast assembly of load-bearing frame structures, forms of any complexity, allow you to easily perform a full cycle of dry finishing technology, without the use of work associated with high humidity( plastering andetc.).The sheet of high-quality gypsum, pasted on both sides by strong cardboard, has made a real revolution in construction finishing works.

The main advantages are high environmental friendliness, low weight, easy handling. GKL systems allow builders to implement in practice the most fantastic solutions of architectural and design projects. Quality material, including gypsum plasterboard, is moisture resistant, the dimensions are standard. This allows even at the design stage to easily calculate the number of sheets, their weight, cost, etc.

With two basic sizes( 9.5 and 12.5 mm), the thickness of the sheets produced can vary from 8 to 24 mm. Standard lengths range from 2.5 to 4.8 meters, with a width of 1.2-1.3 meters. By the way, the sizes of sheets can vary at will of the customer.

Understand the appearance and choice of the GKVV

Among the GCL systems, the most known KNAUF systems are named after the company that developed them. At the heart of the unimaginable variety are simple quick-erecting frame elements and amazing properties of drywall. For example, it is possible to impart to the GCR any shape, to bend in a wet state, forming arched constructions.

Drywall is hygroscopic. And this is both its dignity and disadvantage, limiting the use of conventional GCR.For rooms with humid conditions of operation, sheets of gypsum plasterboard are moisture resistant. Undoubtedly, they require additional moisture and waterproofing. But you can safely apply drywall moisture resistant to the bathroom, while the usual GKL there will not last long.

How do I determine what types of sheets differ? Let out sheets can have standard parameters and to be designated by an abbreviation GKL, GKLV, GKLO( In - moisture and O - fireproof).With the above dimensions, simple GCR have, as a rule, one side of brown, and the other - the natural color of the paper.

Moisture resistant sheets differ in color( green paper) and properties, becausethe materials of the sheets are impregnated with hydrostatic, antifungal and impregnated compounds, which provide greater stability in operation at high humidity. These additives included in the gypsum board are moisture-resistant, its weight increases slightly. A sheet of standard size weighs two to three kilograms more than a conventional GCR.

Already imagining which side to mount a moisture-resistant plasterboard, the technical characteristics of which allow it to be used in the bathroom, toilet or kitchen, do not forget about the need to protect its exterior. For this, special water-repellent paints and primers are used. No less successful are the ceramic or polychlorovinyl tiles laid on the GKL, the moisture-proof films can be used, and so on.

Terms and Scope of Moisture-resistant Drywall

In the course of work, the question often arises as to which side to attach such drywall. Each sheet has edges, they can have different profiles. This is a constructive solution, designed to ensure the sealing of joints between sheets of different types of materials.

The edges can have a rectangular profile shape( the closure is not provided), be with a stepped contour( a tapered profile for gypsum and reinforcing filler), rounded by the shape of the edge angle( taping without tape).

When laying the sheets, the shaping part should be on the outside. As a rule, the lighter side is for the standard sheet. The same rule applies to the GKLV.In general, moisture-resistant drywall application can have the same as normal, which is unfair in the reverse order.

Only it costs, of course, more expensive and is purchased for special use, so it is hardly advisable to use a moisture-resistant material wherever the usual one is suitable. Recommended manufacturer conditions for high-quality operation of moisture-resistant GKL is the availability of good ventilation, which provides the sheet with the ability to give back the accumulated moisture.

Obviously, drywall is moisture-resistant, the characteristics of which are inherent in a number of these magnificent finishing materials, can be used in all types of interior decoration works: for ceiling surfaces, wall structures, quick-mounted internal partitions, etc.

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