Roofing sandwich panel dimensions. Roofing sandwich panels: Standard and custom sizes. Dimensions of roofing sandwich panels

To quickly and inexpensively complete construction work, sandwich panels are often used, the weight of 1 m2 of which is lower than the weight of a brick or concrete wall of the same area. Depending on the thermal insulation parameters, select optimal type panel and its thickness and find the tabular weight value necessary for calculating load-bearing structures.

Types of Sandwich Panels

All varieties consist of outer and inner layers, between which a heat insulator is laid. The composition of the layers determines technical specifications and properties of building materials.

OSB sandwiches

The inside and outside of the structure are covered with oriented strand boards, and the filling is most often polystyrene foam. Ready-made “sandwiches” are 4 times stronger than wooden-frame structures, so they are suitable for capital construction. With a small thickness (from 120 to 150 mm), OSB sandwiches have a thermal conductivity that is 8 times less than a brick or concrete wall. Sandwich panels made from OSB boards have dimensions of 1.25 (2.5) m x 2.5 - 7.3 m, the weight of 1 m2 of puff material ranges from 18 to 20 kg.

Sandwich panels of element-by-element assembly

The design consists of a cassette profile into which any insulation is inserted, covered with a windproof film. Corrugated sheeting and metal siding are most often chosen as cladding. The advantage of this type of sandwiches is their maintainability, the possibility of selecting insulation with a lower specific weight - if it is 40 kg/m3 (mineral wool), then the weight square meter prefabricated structure with a thickness of 200 mm does not exceed 25 kg.

Metal sandwiches

They are faced with a galvanized metal sheet (smooth or profiled) with a thickness of 0.5 mm. A decorative and protective polymer coating is applied on top, and inside– a layer of primer. Mineral wool, polystyrene foam or polyurethane foam are used as insulation. Multilayer products for walls and roofs are produced; they differ in the type of locking connection and the height of the cladding profile. The applicability of metal sandwiches is the construction of garages, hangars, and outbuildings.

Weight of wall metal sandwich panels

The information given in Table 1 shows how different the weight parameters of structures are, depending on their thickness and the insulation used.
Table 1
Dimensional and weight parameters of metal sandwiches for walls

As an example, we find the weight of a 1.2 m x 10 m wall sandwich panel, 150 mm thick, filled with mineral wool. First, calculate the surface area: 1.2 * 10 = 12 m2. The result is multiplied by the weight of a square meter: 12 * 26.3 = 315.6 kg.

Weight of metal roofing sandwich panel

Roof “sandwiches” with anti-corrosion coating and unique locks serve reliably for several decades. Table 2 allows you to compare options with different insulation by weight.

Table 2
Dimensional and weight parameters of metal sandwiches for roofing

Calculation of the weight of a roofing sandwich panel 100 mm thick with dimensions 1 m x 2 m with polyurethane foam filling: area = 1 * 2 = 2 m2; weight = 14 * 2 = 28 kg.

Knowing the estimated number of sandwiches for the walls and roof, their total mass is found - the parameters of the floors, foundation and rafter system depend on this. Conclusion: the weight of 1 m2 of sandwich panel is one of its main technical characteristics.

Sandwich panel products for walls are a universal building material that allows developers to significantly reduce financial costs for construction work and repairs, reduce the labor-intensive process, and carry out construction on time.

Sandwich panels for walls: Dimensions

The sizes of wall sandwich panels have different dimensions. They are produced in lengths up to 14 m. The finished width of the mounting structure is on average 102.5 cm - 100 cm, thickness from 5 cm to 25 cm.

The standard sizes of building materials produced are presented below:

Material characteristics

The demand for such a product on the market is due not only to its quality characteristics. It is lightweight, reliable, has excellent thermal and insulating properties, is resistant to aggressive influences, and is not classified as fragile materials. The moisture resistance of sandwich panels protects slopes or a building from mold and various stains.

The construction product can be three-layer or two-layer. It consists of external facing sheets and a filler made of heat-insulating material.

Gained the most popularity sandwich panels based on cassette profile. The use of cassette sandwich panels reduces the cost of the building frame and reduces the cost of construction by 30-40%.

Basalt fiber, glass wool, polyurethane foam, and expanded polystyrene are used as insulation. Panels can be covered various materials, depending on their purpose. It can be ceramics, plasterboard, fiberboard, chipboard, aluminum or steel. In most cases, steel coated with plastisol, pural and polyester is used.

Video review: Wall sandwich panels

Video review: Ventall sandwich panels, wall sandwich panels

The outer layer gives the structure rigidity and an aesthetic appearance. Characteristics of the outer layer:

• Material: cold active hot-dip galvanized steel (0.5 mm).
• Decorative layer: polyester (0.25 mm).
• The color range is selected according to the RAL scale.

The inner layer, in addition to heat and sound insulation, provides fire safety sandwich panels:

• Mineral wool.
• Foam plastic.

Sandwich panels are widely used not only as an enclosing element for walls, they are used for the reconstruction of old buildings or are used as finishing material.

Additional features:

1. Installation is carried out to brick or concrete walls buildings.
2. If sandwich panels are used for slopes, fastening can be carried out immediately after installing the window. Such work does not take much time and is much easier because it does not require finishing with plaster.
3. To impart fire resistance, manufacturers use ultraviolet stabilizers.
4. Does not need painting.
5. Not required additional insulation and beautification.
6. During work, a minimal percentage of waste is present.
7. Trusted brands are manufactured only using innovative equipment.

Average prices

The price of sandwich panels directly depends on several parameters:

1. Region of production.
2. Qualitative characteristics.
3. Scope of application.
4. Material used for manufacturing.
5. Single-layer or multi-layer.
6. Protective coating.

The cost of a building product is also affected by the thickness of the structure. The larger it is, the correspondingly it can withstand maximum loads. At the same time, other quality indicators improve several times. Such as hygroscopicity, sound insulation, etc.

Material	Thickness: 60 mm	Thickness: 80 mm	Thickness: 100 mm	Thickness: 120 mm	Thickness: 150 mm	Thickness: 200 mm
Pol/Pol + protective film	1160 rub. sq. m	1300 rub. sq. m	1430 rub. sq. m	1600 rub. sq. m	1720 rub. sq. m	1780 rub. sq. m
Pol/Zn + protective film	1130 rub. sq. m	1270 rub. sq. m	1400 rub. sq. m	1570 rub. sq. m	1680 rub. sq. m	1750 rub. sq. m
Znl/Zn + protective film	1100 rub. sq. m	1240 rub. sq. m	1330 rub. sq. m	1540 rub. sq. m	1650 rub. sq. m	1720 rub. sq. m
Pol/Paper	950 rub. sq. m	1100 rub. sq. m	1230 rub. sq. m	1400 rub. sq. m	1500 rub. sq. m	1570 rub. sq. m
Zn/Paper	920 rub. sq. m	1080 rub. sq. m	1200 rub. sq. m	1360 rub. sq. m	1480 rub. sq. m	1540 rub. sq. m
Paper/Paper	750 rub. sq. m	890 rub. sq. m	1000 rub. sq. m	1190 rub. sq. m	1300 rub. sq. m	1370 rub. sq. m

It should be noted that today, the potential production volume of sandwich panels in Russia fully corresponds to consumer demand. Many companies have appreciated this product, including the convenient sizes of wall sandwich panels and their cost. Therefore, an annual increase in production by 20 - 25% is envisaged.

Today we will talk about a building material that was recently considered purely for walls. Currently, manufacturers offer a variety of it that covers the roofs of buildings and structures. This is a sandwich panel roof. In the article we will examine issues related to the structure and composition of the material, its classification, as well as installation technology on rafter system roofs, taking into account some of the nuances of construction operations. Once you understand the information received, you will, as they say, be on the same wavelength as the craftsmen who were entrusted with covering the roof with sandwich panels.

Roof made of sandwich panels Source forza.uz

What are sandwich panels

This is a three-layer material formed by metal sheets, between which insulation is laid. Either polystyrene foam, polyurethane foam or basalt wool are used as thermal insulation here. The first two options are preferable due to their higher technical and operational characteristics.

As metal cladding use galvanized steel sheet, coated on top with either paint or a polymer layer. This primarily increases protective qualities steel sheet, prolonging its difficult operation on the roof. Secondly, there is a huge variety color design, which makes it possible for architects and designers to solve some design problems.

Moreover, all layers are glued together with a special compound - two-component polyurethane glue, which gives the three-layer structure special strength. It must be added that steel sheets are not necessarily a flat surface. Today, manufacturers mainly offer roofing sandwich panels for roofs with a profiled shape in the form of corrugated sheets. That is, with a trapezoidal or wavy shape.

Three-layer sandwich panel structure Source pedkolledj.ru

Advantages of sandwich panels

The first advantage in the list of positive characteristics of this building material is a complete roof set in terms of insulation and waterproofing. That is, by installing the panels on the roof, you solve the whole problem at once. Insulation is understandable, but waterproofing problems are solved bottom sheet galvanized sheet.

And others advantages:

long-term exploitation with proper installation;

small specific weight, and this reduces the load on the rafter system;

calmly withstands quite serious loads;

minimum deformation;

high sound and heat insulation characteristics;

high fire resistance;

elevated aesthetic quality;

rapidity roof assemblies;

the material is practically not susceptible climatic features of the region.

Let's add to this list that minimum slope roofs made of sandwich panels – 5 0 . But with one condition, that the panels will be selected taking into account the length of the house run. With a slope of more than 10 0, it is allowed to mount panels of various lengths, strictly joining them using a special technology.

And one more positive side. Sandwich panels are a universal material, so today they are used to cover roofs, regardless of the purpose of the building itself. Even for residential buildings.

High aesthetics of sandwich panel roofs Source st-taseevo.ru

On our website you can find contacts of construction companies that offer the service of designing and carrying out roofing work, finishing and insulating houses. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.

Characteristics and dimensions

Let's start with the fact that this roofing material produced by many manufacturers technical specifications. Although there is GOST number 32603-2012. True, the standard is intended for panels with insulation made of mineral wool.

So this document says that roofing sandwich panels, designated in the markings by the letter “K”, should be produced with exact dimensions:

thickness 50-300 mm;

width– strictly 1000 mm;

length from 2000 to 14000 mm.

Many manufacturers strictly adhere to these requirements. But they offer longer panels if you order them. At the same time, instead of mineral wool, higher-quality insulation materials are used in terms of both strength and reduced thermal conductivity. This is polystyrene or polyurethane.

As for metal sheets, as mentioned above, this is a flat surface, trapezoidal, wavy and knurled. The latter are grooves either in the upper or lower wave, which act as stiffeners. Rolled panels are considered more durable elements roofing. By the way, rolling is done both on the lower steel sheet and on the upper one.

Standard sizes of sandwich panels Source postroika.biz

On our website you can get acquainted with the most popular house projects, for the finishing of which sandwich panels and a ventilated facade were used - from construction companies represented at the exhibition of houses "Low-Rise Country".

And a few words about characteristics:

thermal conductivity depends on the type of thermal insulation material used: mineral wool 0.034-0.044 W/m K (depending on density), polystyrene foam - 0.03-0.04 W/m K, polyurethane foam - 0.019-0.025 W/m K;

density– 40-50 kg/m2;

service life– 50 years old.

Installation technology

Let's start with the fact that a roof made of sandwich panels is, first of all, a quick and fairly simple installation. But, as with all construction operations, careful preparation is required.

Preparatory stage

It includes:

accuracy check planes of the roof purlin, no differences;

strict perpendicularity between support posts and crossbars;

check inclination angle stingrays;

if additional waterproofing, then they carry it out too.

Installation features

As already mentioned, installation is a simple process. But there are quite a lot of nuances on which the quality of the final result depends.

Let's start with the fact that a metal rafter system is laid under the sandwich roof panels. These are either standard steel profiles, or load-bearing elements made of galvanized sheets that imitate standard profiles. If the first option is used, then holes for fasteners will have to be made in the profiles in advance. If the second option is used, then galvanized elements of small thickness can be easily drilled roofing screws for metal, which are used for fastening roofing.

Sandwich panels are lifted onto the roof by a crane Source roofs.club

And one more point related to the processing of the material. Often panels have to be cut to length or width. A grinder cannot be used. The rotation speed of the cutting disc of a power tool is enormous. A zone of elevated temperature is formed on the cut surface, which burns the zinc and polymer layer, exposing the metal. It is at the cut points that the panels begin to corrode, which reduces their service life.

So, installation operations algorithm:

Necessary prevent contact sandwich panels with supporting structures. Therefore, the latter, or rather, their contact surfaces, are covered with sealing self-adhesive tape.

Crane panels are raised on the roof, where they are laid, starting from any side of the roof structure.

Adjacent panels are connected using a locking connection, which ensures complete tightness of the joint. Some manufacturers recommend additional use for sealing silicone sealant, which is applied to the surface of the lock.

All panels are attached to the supports with special self-tapping screws, which have two threads: the lower one for fastening to the support, the upper one for holding the upper steel sheet. The self-tapping screws are equipped with gaskets made of neoprene rubber, which, under the influence of natural loads, does not change its qualities and properties throughout its operation.

Self-tapping screws for fastening sandwich panels to supports and to each other Source krepezhinfo.ru

It is very important to tighten the screws correctly. Firstly, they are screwed into the upper wave of the sandwich panels. Secondly, you cannot overtighten them; this will compress the gasket, which means it will open the mounting hole slightly for moisture to penetrate. By the way, you also can’t underdo it for the same reason. Thirdly, the fasteners must be screwed in exactly perpendicular to the plane of the roofing.

Since the locking connection is practically an overlap, adjacent panels to be joined must be fastened together using the top galvanized steel sheets. For this, short metal screws are used.

Video description

Watch the video that shows how to properly cover a roof with sandwich panels:

Installation with transverse joints

If the length of the slope is large enough and this parameter cannot be covered with one panel, then laying the material with transverse joints is used. Here they use very interesting technology, which is based on the process of forming an overlap of two adjacent panels. This is done like this:

the bottom steel sheet is cut off on the overlap length of the panel that will be laid as the top element;

at the same distance the insulation is also cut off;

all that remains is top sheet;

trimmed this way the panel is laid on the adjacent one, covering part of the bottom panel with the remaining steel protrusion;

two joined panels attached to supports, and the overlap is done using small self-tapping screws with the obligatory coating of the overlap plane with sealant.

Please note that if the slope angle is 5-10 0, then the overlap should be within 300 mm, if the angle is above 10 0, then the overlap length is 200 mm. Look at the photo below, which shows how sandwich panels are laid using this technology, and in what order they should be installed on the roof.

Connection of sandwich panels along the length of the slope Source www.mpcomm.ru

In principle, at this point we can consider that the sandwich roof is ready. All that remains is to install the additional elements. This is primarily a hobby. Between the upper edges of the laid panels are laid thermal insulation material, and close on top metal element, painted in the color of the sandwich panels. If there is an abutment of the roof to a protruding wall, then this joint is covered with a so-called flashing. This is an angular type profile, one shelf of which is attached to a vertical surface, the other to the surface of the panel, thereby closing the joint.

Roof ridge made of sandwich panels Source rsp.spb.ru

Video description

The following video is about the types and characteristics of sandwich panels:

Conclusion on the topic

Today, sandwich panels for roofing are one of the most popular materials of the new generation, especially in industrial construction. Simplicity of installation does not mean that this process can be carried out by illiterate and inexperienced craftsmen. It won't be too difficult to ruin the panels. Therefore, it is very important to strictly follow the instructions provided by the manufacturers.

Sandwich panel is a building material, the outer sides of which consist of hard material, most often metal, and the inner one is made of insulation. They got their name due to the fact that the layers resemble a sandwich (English sandwich ["sænwɪʤ]) - the same materials on the outside and one more on the inside. Sandwich panels were first used in 1930 in America during the construction of a residential building. Later, a mass production production of panels. Russian Federation This building material began to be produced in 1974, and it quickly occupied its niche in the construction market.

Sandwich panels are often used in construction Source tiu.ru

Main Features

Sandwich panels are mainly used for the construction of low-rise buildings for commercial, industrial or other purposes. Because of the "official" appearance rarely used in the construction of residential buildings. Most often this finishing material is intended for walls. Installation is carried out by attaching to metal frame self-tapping screws.

One of the areas of application of sandwich panels is construction industrial buildings Source 2gis.ru

There are several types of panels.

External wall sandwich panels. Made from metal sheets and insulation. They are mainly used for the construction of partitions, cladding the walls of a building, and for insulation purposes.

Roof panels. Used to cover roofs. Long-term use. They are made of fireproof materials, retain heat for a long time and isolate loud street sounds. Fastening is carried out according to unique technology, protecting against deformation in the warm season.

Three-layer panels. Convenient to use. Installation of such plates occurs quickly, without any difficulties. No need to strengthen load-bearing structures buildings. Manufactured from galvanized steel, coating possible polymer compounds. Currently, this type of sandwich panels is used most often. This is the most modern building material. Moreover, the use of three-layer panels significantly reduces financial costs.

Corner sandwich panels. Used to create a complete image of a building. Can be semicircular or angular. Made from heat-resistant, fireproof material.

Corner panels reduce labor costs during the construction and finishing of buildings Source kingspan.com

The panels are varied in color scheme, which is defined by international color standards. The color must be chosen in accordance with climatic conditions. It is necessary to take into account the light reflection and light absorption properties of the material. The service life of the building directly depends on this.

insulation and exterior finishing of turnkey houses. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.

Types of insulation for exterior sandwich wall panels

First of all, external wall panels are usually distinguished by the internal composition of the insulation:

Polyurethane foam. The material is practically not subject to corrosion and deformation. Resistant to heat and mechanical stress. It is a clean environmental product. Quite durable. The cost of such panels is quite high. However, the material is not safe in case of fire.

Expanded polystyrene. Has high heat and sound insulation. Not exposed to thermal influences. Environmentally friendly and lightweight material. Retains its shape during prolonged contact with water. An advantage is the possibility of installing the panels in the cold season. The main disadvantage of the filler was such characteristics as fire hazard, color change when exposed to sun rays, changes shape at temperatures above 1000⁰C, causing various allergic reactions.

Source proroofer.ru

Polyisocyanurate foam filler. The leading material among sandwich panels. Environmentally friendly, not subject to corrosion and deformation. Has minimal thermal conductivity and elasticity. Durable, fire resistant and durable. Among the disadvantages of the building material, one can highlight only its high cost.

Mineral wool filler. The advantages of insulation are non-flammability, good sound insulation. The material is environmentally friendly. Does not undergo deformation when exposed to heat. When in contact with metal, the possibility of corrosion is reduced to zero. It is easy to use and install. Panels filled with mineral wool also have a number of negative characteristics. First of all, it is harmful. When installing such sandwich panels, you must use a respirator. Over time, the material loses its heat-insulating properties. Working with the panels is only possible in good weather, since mineral wool is a non-moisture resistant material. If it comes into contact with water, the panel may delaminate. A fairly large weight requires additional strengthening of the supporting structures.

Mineral wool environmentally friendly material, but over time it loses its properties Source s-paneli.ru

Fiberglass insulation. The composition of the filler is similar to mineral wool, but differs significantly in properties. Advantages of this material are non-flammable, sufficiently high heat and sound insulation. The product is light, elastic, durable and environmentally friendly. The disadvantages include high absorption of liquids, inability to use high temperatures, deformation due to sudden temperature changes. When hitting respiratory organs may cause severe allergic reactions.

Fillers combined type . The filler contains a mixture of various building materials. Basically, these are mineral wool and polystyrene foam.

The properties of mineral wool and durability will be supported by polystyrene foam in panels with combined insulation Source samara-paneli.ru

Types of external cladding of sandwich panels

Just like the internal filler of sandwich panels, their outer layers are made of various materials.

Paper. Aluminum foil or polyethylene becomes an addition to paper. You can find panels in which the paper is impregnated with bitumen. Panels with such cladding have a relatively low price and are economical to use.

Metal. Mostly thin stainless or galvanized steel is used. Metal cover aluminum foil, cloth or paper. This serves protective function top layers of the panel.

PVC. There is a layer of insulation between the PVC sheets. Such panels are used for the construction of partitions, finishing of door and window openings.

Drywall, fiberboard, plywood. The product is sheathed on both sides different materials. Used in the construction of office partitions. Convenient to hide wiring if necessary.

This is what they look like office premises, in the arrangement of which sandwich panels will be used Source stroi-innovatsii.ru

Polymer coating

Sandwich panels also differ in the type of polymer coating. Let's look at a few main types.

Pural. The material is resistant to sudden temperature changes and does not react when exposed to ultraviolet rays. Mainly used for external cladding structures.

PE (polyester).

Polydifluorionad. The coating is resistant to aggressive chemical compositions, changes in air temperature and external mechanical influences.

Plastisol. Panels with such a coating are used not only for exterior finishing buildings, but also for the interior.

Panels coated with plastisol can be used both indoors and outdoors Source usider.it

Panel sizes

The width of sandwich wall panels can be different. This depends on the material from which the product is made. Width varies from 100 to 103 cm. Thickness from 5 to 25 cm. Length finished product can reach 14 meters.

Video description

Details about wall panels in the video:

Cost of sandwich panels in Moscow

The cost of the product depends on the dimensions of the sandwich wall panels: width, thickness. The choice of color also affects the cost. Prices may vary from store to store. Depending on the characteristics of the panels, prices range from 750 to 1780 rubles per m 2 *.

*the given prices are relevant for the city of Moscow

On our website you can find contacts of construction companies that offer turnkey construction and insulation services for houses. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.

Conclusion

Although sandwich panels are rarely used for construction and insulation of houses, they remain an effective solution for outbuildings. In any case, installation should be carried out by professionals, because the use of any building material has its pitfalls, which become known only through experience.

The design of wall and roof sandwich panels consists of:

• two profiled galvanized metal sheets 0.5 mm thick with polymer coating"Polyester". For the production of linings, only rolled hot-dip galvanized steel from the Russian metallurgical plants NLMK and Severstal are used;
• one layer of high-quality insulation, at the customer’s choice, either mineral basalt wool (density 100-140 kg/m3) or expanded polystyrene (density 13-25 kg/m3).
• High-quality special adhesive produced by DOW is used for a strong adhesive connection. Wall and roof sandwich panels "StalProfilGroup" are produced in accordance with technical requirements TU 5284-001-18201124-2016.

Sandwich panel sizes

Wall sandwich panels are produced in working width 1190 mm, and at the individual request of the client and in width 1000 mm. The total (before installation) width of the sandwich panels, including Z-Lock locks, is 1206 mm. The length of Wall and Roof sandwich panels is determined by the Customer and can be any in the range from 1.5 meters to 14 meters. The thickness of wall and roof sandwich panels corresponds to the thickness of the insulation - Mineral Wool or Expanded Polystyrene.

Deviations from the nominal dimensions of the panels must correspond to those indicated in the table.

Profiling

In the production of wall sandwich panels, the following types of profiling are used:

Micro RIB

Without profiling, with smooth sheet on both sides. Also, together with profiling 11 RIB and Mikro RIB, you can use a Smooth sheet as the inner surface.

Roofing sandwich panels are available in a working width of 1000 mm. The total (before installation) width of roofing sandwich panels, including R-Lock locks, is 1085 mm. To produce roofing sandwich panels, one type of profiling with five trapezoidal stiffeners is used.

Wall panel weight

The specific gravity of sandwich panels is important indicator, which determines both the installation possibilities of the panels and the load on the supporting frame.

Data on the specific gravity of wall sandwiches with mineral wool insulation with a density of 110 kg/m³ panels are given in the table.

Panel thickness [mm]	Width [mm]	Panel length [mm]	Specific gravity of sandwich panel [kg/m²]
			0,5	0,6	0,7
50	1190	1500 - 14000	14,61	16,26	17,93
80			17,91	19,56	21,23
100			20,11	21,76	23,43
120			22,30	23,96	25,62
150			25,61	27,26	28,93
180			28,31	30,44	32,13
200			31,11	32,76	34,43

Specific Gravity Data for wall panels with insulation Expanded polystyrene “KNAUF” with a density of 25 kg/m³.

Panel thickness [mm]	Width [mm]	Panel length [mm]	Specific gravity of sandwich panel [kg/m²]
			0,5	0,6	0,7
50	1190	1500 - 14000	10,36	12,01	13,68
80			11,11	12,76	14,43
100			11,61	13,26	14,93
120			12,11	13,76	15,43
150			12,86	14,51	16,18
170			13,30	15,01	16,68
200			14,11	15,76	17,43

Data Specific Gravity roofing panels with mineral wool insulation with a density of 130 kg/m³ and metal sheets with a thickness of 0.6 and 0.7 mm.

Data on the Specific Gravity of roofing panels panels with polystyrene foam insulation with a density of 25 kg/m³ and metal sheets with a thickness of 0.6 and 0.7 mm.

Thermal insulation properties

Taking into account the calculated average thermal conductivity coefficient of mineral wool and expanded polystyrene, the values ​​of the heat transfer resistance of sandwich panels depending on their type are given below. When calculating, the thermal conductivity coefficient for mineral wool with density was taken:

110 kg/m3 - λs = 0.045 W/m °C

for expanded polystyrene density:

25 kg/m³ - λs = 0.04 W/m °C

Load capacity

Load capacity wall sandwich panels with a uniformly distributed load (loading pattern - continuous two-span beam), kg/m².

Span length L [mm]
	50	80	100	120	150	180	200
1,0	191	316	397	398	597	717	798
1,5	128	210	262	317	398	478	530
2,0	95	156	195	238	296	356	396
2,5	86	122	156	189	235	283	317
3,0	61	101	129	157	197	236	262
3,5	52	87	110	133	165	201	225
4,0	47	75	96	116	146	177	197
4,5	40	66	84	102	128	156	172
5,0	35	60	76	91	115	140	156
5,5	31	53	69	88	102	119	140
6,0	27	44	58	70	88	100	119
6,5	21	38	47	59	73	90	100

Load-bearing capacity of roofing panels under a uniformly distributed load (loading pattern - single-span beam), kg/m².

Span length L [mm]	Standard panel thickness [mm]
	50	80	100	120	150	180	200
1,0	242	460	610	759	977	1194	1341
1,5	151	297	393	490	631	780	874
2,0	106	211	285	358	460	570	641
2,5	65	160	220	275	360	445	501
3,0	33	105	160	211	291	362	410
3,5	15	69	110	155	221	294	340
4,0	-	40	72	105	155	206	241
4,5	-	20	48	70	107	146	170
5,0	-	-	27	44	72	102	121
5,5	-	-	-	27	50	71	89
6,0	-	-	-	-	31	50	69
6,5	-	-	-	-	18	31	42

Load-bearing capacity of roofing panels under a uniformly distributed load (loading pattern - continuous two-span beam), kg/m².

Span length L [mm]	Standard panel thickness [mm]
	50	80	100	120	150	180	200
1,0	170	344	460	579	753	927	1040
1,5	103	219	295	370	484	600	675
2,0	70	153	210	268	350	435	491
2,5	51	117	160	203	271	337	381
3,0	36	91	127	160	220	272	310
3,5	27	73	102	132	181	225	256
4,0	18	55	84	110	151	190	218
4,5	-	31	54	73	106	140	158
5,0	-	17	33	49	72	98	113
5,5	-	-	19	30	50	70	81
6,0	-	-	-	18	31	47	56
6,5	-	-	-	-	18	31	40