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Exterior Finish Of The House

August 12, 2017 18:06

Types of sandwich panels

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Today sandwich panels is called a whole generation of modern construction materials, which are intended for civilian housing and its structure embodies the idea of ​​a sandwich.Sandwich panels allow fast and relatively cheap to build any house or outbuildings, as well as to insulate the finished house.In this article we will look at what are the different types of sandwich panels and how they differ from each other.

A stack of sandwich panels

stack of sandwich panels

Sandwich-based panels of OSB

Today sandwich panels called a special building material, which is composed of several connected to each other layers: the internal and external cladding and insulation,disposed therebetween.As the outer and inner layers of sandwich panels based on the use of OSB oriented strand board.High flexural strength and compression plate and resistance to mechanical stress and high humidity settings and appointment of the finished sandwich.The resulting product, though it seems fragile, has a very high tensile strength.

Surprisingly, such a sandwich panel may well sustain 400 pound horizontal load per m2 and vertical up to 3 tons per meter.If we compare the construction materials on the criterion of durability and reliability, these sandwich panels are second only to concrete and brick.They are characterized by a very high degree of fire used in capital construction.Construction of houses for the permanent residence of the sandwich panels based on the OSB boards currently a usual thing.

Sandwich panels on the basis of OSB

sandwich panels of OSB on the basis

The insulating material serves as a filling for a sandwich of oriented strand board.The most frequently used expanded polystyrene, which is an organic insulating material, which is produced slabs.These plates did not absorb moisture and have excellent technical characteristics that allow a high degree to provide thermal and acoustic insulation.Suffice it to note that the thermal conductivity of the expanded polystyrene 0.039 W / m2 * Kelvin.

use of mineral wool in addition to the production of polystyrene foam sandwich panels recently become widespread.In mineral wool slightly higher coefficient of thermal conductivity, which is 0,041 watts / m2 * Kelvin.But the main advantage of this material lies in its absolute non-combustibility.The disadvantage of mineral wool is a fear of water.If you get it in the insulation, it can completely lose their properties.Production of sandwich panels of OSB panels is accomplished by bonding the components on special automated lines or manually.

manufacturers produce such sandwich panels are a few standard sizes corresponding to the size of OSB boards.The width is 1.2 or 2.4 m and a length of 2.4 - 7.3 m thickness of the products from 10 to 30 cm, depending on the climatic conditions and the construction site assignment panels..Advantages of this material lie in the fact that, compared with concrete and brickwork it is very easy.For example, 1 m2 weighs 18 kg.Thermal characteristics of walls made of sandwich panels of thickness 170 - 180 mm, the same as those of the wall from bricks, having a thickness of half a meter.Use this material can be in a very wide temperature range from - 60 to + 50 degrees.Interconnected sandwich panels of various shapes can be by means of fastening screws or under the key, which has a length of 30 cm.

As a rule, use of sandwich panels in the construction of buildings and structures using frame construction technology.Of these, erecting walls interior partitions and roof.on sandwich panels plastering there is no difficulty.Other building finishing materials, too, are perfectly combined with sandwich panels so the interior and exterior surface finish, no one causes any problems.sandwich panels Processing of OSB panels is very simple.Changing the shape of the panel is possible using conventional manual electric saw, which allows you to quickly and easily cut their relevant drawings of the building.

House, which build from such panels, is perfectly straight corners and walls and get comfortable accommodation and warm.This material weighs very little, so to build a house out of it as possible, involving only a few people and without using a special lift construction equipment.The advantage is that it does not require an expensive foundation for recessed installation at home.This technology allows you to save money when building a house.

Sandwich panels

In this type of metal material in the metal sheets are used as outer layers.Most often it is smooth or profiled galvanized sheet steel, which has a thickness of 1.5 mm and covered with a decorative polymeric coating.It is protected by 10-micrometer layer of primer.Profile on the metal sheet is a wave-like or trapezoidal.The height of the waves or grooves may be quite different, depending on the profile of the panel.Most often profiled with a small wave height is used for the wall panels.Roofing materials often characterized by high edges.As the insulation between the two metal sheets placed mineral wool, polyurethane or polystyrene.Between the layers are attached by means of two-component polyurethane adhesive.

Sandwich panels of sheet metal profiled

Sandwich panel made of sheet metal profiled

Such heat insulating material such as polyurethane foam has the lowest thermal conductivity coefficient between 0.02 and 0.04 W / m C, which depends on the density and very good waterproofing properties.It has a special kind of foam that hardens when dry and firmly attached to the insulated surface.This property allows it to use the material in the production of sandwich panels.First napenivayut polyurethane foam on a single sheet of metal until it foams, swells and cures, it is covered with a second sheet of corrugated board.Connect sandwich panels with metal layers in the monolithic solid construction with a special lock that allows maximum tight panels abut one another and maintain the thermal performance.

distinguish options with open and closed type fastening Among metal sandwich panels.The best is a hidden lock.The design is such that the protruding portion facing allows to close not only the joint but also the mounting panel elements.This prevents cold air and atmospheric moisture to penetrate the joints between the panels, which eliminates thermal bridges.Panels open type fastening arranged more simple.Such attachment is a compound spike PAZ, differing only in the configuration and depth of the groove.

Fastening tongue and groove in the sandwich panels

Fastening tongue and groove in the sandwich panels

important to note that joining the site is one of the weak construction sites, since moisture can penetrate through the joints and worsen the quality of thermal insulation insulation.Multiple freeze / thaw cycles, sooner or later will lead to the destruction of not only the internal insulation layer, but also the entire sandwich in general.

Note that the metal sandwich panels are used for the construction of prefabricated and mobile buildings, which are not intended for permanent residence.Protecting designs for roofs and walls are erected precisely because of such material.metal sandwich panel used for capital construction as a house will not provide adequate comfort for the person in the process of living.However, this material can be successfully used for the construction of farm buildings, temporary structures, as well as garages and sheds different.

Thus, a material having the name of the sandwich panel is very user friendly, durable and effective not only in private construction, but also in the construction of industrial buildings and constructions.

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