Characteristics of gypsum sheets ( gypsum fiber board ) , used in construction

Have you ever thought that the usual for interior decorating drywall has an analogue, is significantly superior to its technical characteristics, and just as easy to use?This plaster-fiber sheet, or abbreviated GVL.

This finishing material is also manufactured in the form of sheets, but, in contrast to the drywall, no sheath and fully homogeneous structure.GVL are made by compressing a mixture of plaster and the dissolved cellulose fibers (15-20%), derived primarily from waste paper.The fibers act as reinforcing elements, whereby GVL strength many times greater than the strength of drywall (plasterboard).Thus, we can talk about the environmental safety of the material and the possibility to use it for all kinds of interior decoration inside the premises.

Features and Benefits GVL

In addition to environmental friendliness, GVL have a number of other characteristics, which tips the scales in the direction of the material:

1. High toughness and strength (1250 kg / m³) GVL allowto drive nails in them and tighten the screws without dowels and can handle sheets of the same tools as wood, because it does not crumble.
2. low thermal conductivity making GVL excellent material for thermal insulation of buildings, as well as drywall, it is always warm to the touch.Soundproofing
3. GVL about 35-40 dB, depending on the thickness.
4. With the ability to withstand fire, you can use gypsum sheets for fire protection of wooden structures and utilities.
5. Lightweight GVL does not create an additional burden on the bearing elements of the building and allows the transfer sheets and the installation of structures alone.
6. Easy handling - to work with the material requires no special tools, and little waste is generated.
7. GVL flexible (bending strength of 5.5 MPa, twice higher than that of the GCR) and can be used for the construction of various complex structures: arches, niches, suspended ceiling elements.
8. Frost - According to the manufacturer, gypsum sheets can withstand up to 15 cycles of freezing and thawing prior to the appearance of cracks and deformations.Thus, GVL may be used for finishing unheated buildings, such as cottages.
9. highly hygroscopic GVL effect on the level of humidity in the room: if it is raised, the sheets absorb water, to give it to the dry air.
10. quality sheets should be thoroughly sanded and covered means of preventing chalking and excessive accumulation of moisture.

GVL excellent replacement for drywall, if the material requires additional strength and ability to withstand point loads.It is more expensive than the FCL, but this is probably inconsequential shortcoming, given the higher wear resistance.

Species Species

GVL only two - standard and moisture.

• Standard GVL optimal for most interior applications in dry areas, both residential and industrial, with normal temperature conditions.
• Waterproof Sheets (GVLV) are impregnated with a hydrophobic solution and can be used in wet areas - kitchens, bathrooms, basements and masardah.

gypsum sheets are divided into sheets with a straight edge and a seam edge.The standard size for most manufacturers 250 * 120 * 1cm, there are also small-format sheets 150 × 120h1sm.floor elements are more than 2 cm thick.

Application

Specifications GVL allow their use in a wide range of construction and finishing works.The most common application - covering of walls, ceilings, doors and windows as for the purpose of alignment and hide communications, as well as for fire protection.

gypsum sheets can be used to build interior walls, as the increased strength capable of holding the weight of the door and other external components.GVL can also be used as a substrate under the flooring to concrete and wooden beams, it is true, in this case, better to choose water-resistant sheets.It can be laid on top of any material: linoleum, laminate, parquet, tiles.Using the GVL significantly accelerates flooring compared with "wet" method, because waiting for complete drying for a few weeks, it is not necessary, as compared with OSB is often used for the same purpose, gypsum fiber board does not contain harmful resins and formaldehyde.

What to consider when choosing

Buying GVL, first you need to select the sheets from proven manufacturers.Least of all complaints are collected by GVL company KNAUF, the products of Russian producers, although cheaper, but can dust.When purchasing a water-resistant gypsum fiber board should pay attention to the labeling of each sheet or the entire package if you purchase a large amount of material, since they can not be different from the ordinary in appearance.