Water-repellent insulating boards: characteristic pros and cons. Hydrophobized gypsum board (667x500x100) Knauf

It is necessary to insulate a house strictly following the building codes in order to be able to save on heating. Effective insulation not only must maintain a certain temperature regime, but at the same time be environmentally friendly, as well as non-hygroscopic and non-flammable.

Market modern materials for insulation is extensive and diverse, so, as a rule, there are no problems with the choice.
One thing is important, the coefficient of thermal conductivity of the material. It is needed to correctly determine the thickness of the effective layer of insulation and choose from the available insulation of a specific thickness. It should also not be forgotten that in addition to the usual materials, hydrophobic insulation boards are also produced.

Hydrophobization - what is it for

Many of the building materials of mineral origin are porous, which explains their high moisture absorption (up to 40%). And when moistened, the material significantly loses its heat-shielding qualities. Cyclically moistening and drying, chemical action of salts and alkalis dissolved in water destroys their structure and reduces durability. The main source of moisture is condensation, which is released on internal surfaces. Thermal insulation material moistens, which increases its thermal conductivity.

One of the simplest and most economical, but reliable ways to significantly improve the quality and durability of mineral wool insulation is to impregnate it with special water-repelling modifiers, water-repellent compounds. Water repellents color and appearance the material does not change, it is environmentally friendly, and the material modified in this way becomes waterproof, waterproof, significantly reduces water absorption.

The fibers are glued together with a binder, usually synthetic resin. Its fixation on the fibers is ensured by subsequent heat treatment and pre-pressing. The hydrophobic mineral wool board practically does not absorb moisture - it remains on the surface. Absorbs water only when pressed. With the disappearance of the pressure, moisture begins to evaporate, the hydrophobized thermal insulation boards become dry again and restore their original thermal insulation characteristics. They are mainly produced in three modifications:

  • lungs;
  • tough;
  • special rigidity.

Lightweight hydrophobic insulation boards

Plates of this type are suitable for any structures where the insulation will not experience stress. They, for example, can be used for insulation pitched roofs... Usually one side is springy, so that the material can be securely fixed. This is a great opportunity to turn an attic space into a living space. Moreover, if this is a roof made of a metal profiling sheet, the insulation excludes the possibility of condensation on its surface in cold weather and overheating of the room in summer.

Typical structures of the roof, attic or attic of private houses can be safely attributed to the frame.

Indeed, the supporting element of the structure is a frame made of wood or metal, consisting of rafters, purlins (lag) and lathing. Therefore, no external load on thermal insulation layer will not have any impact.

If the height of the rafters at the same time turns out to be insufficient for laying a layer of thermal insulation of the required thickness and on the air gap, perform a two-layer insulation - by stuffing another, additional frame along the rafters.

Rigid: strength and loads

The high rigidity of such slabs and the ability to maintain shape under load make it possible to use them as loaded thermal insulation. The structure is combined: the outer layer, located on top, is rigid, it is marked, and the inner (lower) layer is lighter. Such a device reduces weight and simplifies installation and, moreover, avoids a two-layer thermal insulation device.

The compressive strength of the slabs and especially the ability of the material to overcome point loads is extremely important when constructing flat roofs, since it does not allow violations of the layers of hydro and thermal insulation during installation and operation. Point loads among all those experienced by the roof are considered the most dangerous, since they arise even during behavior installation works.

With insufficient strength of the thermal insulation plates, they are deformed, and in these places the risk of losing the integrity of the waterproofing layer increases sharply.

In addition, places are formed in which intense heat loss, the so-called "". What is it fraught with? Possible local melting of snow in winter time leads to the accumulation of moisture in these areas.

Today, the share of using rigid hydrophobized basalt wool slabs for thermal insulation of flat roofs is more than 75%.

- non-combustible, which increases the fire safety of the roof structure. Moreover, modern roofing fusions can be installed using gas burner, directly on the surface of the heat-insulating layer, and this undoubtedly contributes to a significant simplification of the technological process.

Fibers of basalt wool insulation with a melting temperature of about 1000 ° C, of \u200b\u200bcourse, are not afraid of a burner flame, the temperature of which is only about 600 ° C.

Two-layer hard layers eliminate the possibility of damage to the soft bottom layer. The seams are laid "in a run-up" way - and this is an opportunity to save heat as much as possible and ensure the optimal strength of the insulating layer.

Porous materials of mineral origin are characterized by high moisture absorption, which negatively affects their thermal insulation properties. To increase the durability of mineral wool insulation, it is impregnated with special modifiers and water-repellent compounds. This environmentally friendly treatment makes the material waterproof.

The fibers in hydrophobized mineral wool slabs are bonded with synthetic resin binder, followed by heat treatment and pressing. The resulting mineral wool does not absorb moisture, it remains on the surface.

Varieties of hydrophobized plates:

  • lungs;
  • tough;
  • high rigidity.

Lightweight hydrophobized mineral wool board is non-combustible and suitable for a wide range of applications. It is used for structures that do not experience significant loads (for pitched roof). With the help of such material, they effectively insulate attic spaces... The material gives the profile sheet roof additional advantages, insulating it and preventing condensation in winter and overheating in summer.

Rigid, non-flammable, hydrophobic mineral wool slabs, due to their rigidity, retain their shape under load. They can be used as load-bearing thermal insulation. The material has complex structureconsisting of a hard outer layer and a lighter inner layer. Thanks to this design, the total weight of the boards is reduced and the installation process is simplified.

Strength and thermal insulation propertiespossessed by hydrophobized mineral wool boards, highly appreciated when device flat roofs... The rigidity of the material allows you to level the point loads on the roof during installation and operation.

Experts of the TeploStroy company in Moscow will advise mineral wool slabs with hydrophobic treatment, depending on the planned operating conditions. You can get a preliminary consultation by calling us by phone.

Slab specifications

Specifications unit of measurement Index
Density kg / m3 150
Length mm 1000
Width mm 500
Thickness mm 50-100
Compressive strength at 10% deformation kPa, not less 45
Peel strength of layers kPa, not less 7,5
Thermal conductivity
At a temperature of 10 C W / (m.K), 0,034
At a temperature of 25 C 0,038
Under operating conditions A 0,043
Under operating conditions B 0,045
Water absorption by volume %, no more 1,0
Moisture by mass 0,5
Organic matter content, by weight 4,0
Flammability group NG

Prices for hydrophobic boards

Name Dimensions (mm) Cost (rub / m 3)
Non-flammable hydrophobized rock wool slabs
Min plate P-75 1000*500*50-100 2200,00
Min plate P-125 1000*500*50-100 2230,00
PM-40 1000*500*50-100,120,150 1400,00
PP-60 1000*500*40-100,120,140,150 1650,00
PP-80 1000*500*50-100,120,150 2150,00
RV basis 1000*500*50-100,120,150 3900,00
PZh-100 1000*500*40-100,120,140 2800,00
PZh-160 1000*500*40-100,120,140 4450,00
PPZh-200 1000*500*40-100,120,140 4700,00

Tongue slabs (PGP) VOLMA from 160 rubles

Description VOLMA Tongue plates (PGP)

The VOLMA tongue-and-groove solid slab is rectangular parallelepiped, with grooves and ridges on the supporting and mating surfaces.

According to TU 5742-003-05287561-2003 Plates are made of gypsum binder with the addition of plasticizing and hydrophobic additives using injection technology and are intended for the installation of partitions in buildings and premises for various purposes with dry and normal humidity conditions according to SNiP II-3-79 *.

Made from environmentally friendly natural material, are non-flammable, do not contain toxic substances, are odorless, have high soundproofing ability and high vapor and gas permeability.

The ideal surface and the accuracy of the geometrical dimensions of the tongue-and-groove plates make it possible not to carry out plastering works... The very process of assembling a wall from such a slab is similar to the principle children's designer LEGO, where the products are fastened together by engaging the groove and the ridge. For fixing the boards, the gypsum glue "VOLMA-MONTAZH" or "VOLMA-MONTAZH FROST" is used at low temperatures.

The use of the VOLMA tongue-and-groove partition plate in construction is real opportunity reducing the cost of housing by saving on labor force and building materials, as well as - reduction of construction time.

Advantages of using VOLMA full-bodied tongue-and-groove plates in the construction of partitions:

  • Easy to install high performance partition walls without special equipment: one person performs from 20 to 30 square meters per shift
  • Saving useful space due to a thinner, but stronger partition.
  • The ability to erect both single, 80 or 100 mm thick, and double dividing walls.
  • Door and window openings up to 900 mm can be mounted without embedded (lintels).
  • No plastering is required (no wet processes), the partition immediately after erection is ready for tiling, wallpapering, and for painting (painting), only finishing puttying is required.

Produced on European equipment installed in 2004-2006.

Description

Knauf gypsum hydrophobized tongue-and-groove slabs are a widespread building material and are in great demand among consumers, both in European countries and the CIS countries. Knauf board is made on the basis of binder gypsum by casting and subsequent molding. Manufacturers add special additives to the gypsum composition that increase the moisture resistance of the boards. The knauf slab means high speed and ease of installation, quality and reliability. Our online store invites you to buy knauf tongue-and-groove plates by great price and in a large assortment.

Knauf-gypsum board is made of gypsum binder according to the casting technology with the addition of special additives to the molding mass that reduce water absorption.

These are rectangular plaster monolithic slabs with tongue-and-groove joint. Used in the construction of walls and partitions. The products are characterized by high dimensional accuracy and smooth surface.

Products have a certificate of conformity "GOST R", expert opinion.

For cheap, I understand everything, no one will sell them cheaply, except for the presented company and its managers.

Details of the product

Benefits

Piece-by-piece assembly of non-bearing partitions in buildings for various purposes and inner lining external walls of buildings, the resulting surface is intended for further painting, wallpapering, cladding ceramic tiles or decorative plastering;

In rooms with normal humidity.

  • Dimensions (mm) 667 x 500 x 80
  • Weight (kg) 28
  • Number of slabs in 1 m2 3 pcs.
  • Number of panels on a pallet (pcs / m2) 30 | 10
  • Compressive strength, MPa 5
  • Flexural strength, MPa 2.5
  • Flammability NG
  • Density (kg / m3) 1200
  • Thermal conductivity coefficient, W / (mS) 0.3
  • Vacation humidity no more than 10%

Knauf tongue-and-groove plates

Knauf tongue-and-groove slabs are simple hydrophobic building construction, which are widespread among modern consumers of this kind of functional structures. Gypsum slab hydrophobizir has long earned a reliable reputation, both in the domestic industry and in highly developed european countries with significantly more significant requirements for the quality of any building resources. Knauf tongue-and-groove plates can be bought in our online store at a price very affordable even for an ordinary consumer.

Knauf gypsum board

Knauf gypsum slab is a kind of structural building structure, which is made by using a binder - gypsum - by casting it with subsequent molding. Knauf gypsum board - includes special additives developed by experts, the action of which is aimed at ensuring that the tongue-and-groove gypsum board has a very high degree moisture resistance.

Buy knauf tongue and groove plates

To buy a knauf tongue-and-groove plate means to acquire reliability, quality of construction and ease of installation at the same time. In our online store tongue-and-groove plate Knauf the optimal price among the designs - analogues. Also "Lux - Stroy" presents knauf tongue-and-groove slabs for users with our resource in a wide range, so that each consumer can easily choose the knauf tongue-and-groove model that suits him.

Knauf stove

So, Kanuf tongue-and-groove plates are building structures made of gypsum, which are made with the use of an astringent substance and using a special complex molding technology, in the production process of which characteristic specific additives are used, the action of which is aimed at a gradual decrease in the process of water absorption of the knauf plate.

Consider what technical characteristics and functional features have tongue-and-groove plates buy Moscow:

  1. tongue-and-groove slab knauf - durable and robust design;
  2. knauf tongue-and-groove slabs the price is quite affordable for an ordinary consumer of building materials;
  3. you can buy knauf tongue-and-groove slabs in Moscow on our website of the Lux-Stroy online store;
  4. knauf tongue and groove slabs price very stable building block;
  5. the knauf tongue-and-groove plate is universal tool for any repair.

This product is presented in a wide range on the website of our online store called "Lux - Story". We offer building materials and tools for everyone to the maximum affordable prices... At the same time, the quality of the products we offer does not suffer. On the contrary, we work only with reliable suppliers of all the necessary resources proven over the years.

Making an order is very simple: you just need to fill out the appropriate form on the hiring site, and the manager will contact you to discuss the details of the transaction. For a small surcharge, we will deliver the goods to any point in Moscow and even the region - so you buy high-quality building materials without leaving your own apartment.

For regular customers a flexible system of discounts and bonuses operates. The terms of cooperation offered by our company "Lux - Stroy" are optimal for any modern consumer. Who is used to making all the necessary purchases using the services of online stores. The site interface is comfortable and understandable even for inexperienced web users. "Lux - Stroy": your reliable assistant in repair and construction.