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CLT – Solid timber elements

The solid timber elements CLT from Stora Enso are ideal for building and realizing with the power of innovation. Precious materials, versatile in use, which allow an environmentally friendly production and very simple installation techniques. A loyalty guarantee to your projects matching the highest construction requirements.

The CLT is made by overlapping and gluing together single layers of boards in crossed layers. This special technique allows to optimize the physical characteristics of the material for construction purposes and to obtain a better components seal. The absence of joints gives to the product the most advantageous quality in terms of airtightness, heat transfer, vapor diffusion, soundproofing and fire resistance. The bonding is done by means of ecological binders, free of formaldehyde. The shape stability is guaranteed by the crossed structure of the longitudinal and horizontal layers, which allows to minimize the swelling and shrinkage phenomena.
CLT elements are mainly used for walls, floors, roofs and, depending on the purpose of use, they are made in visible or non-visible quality. In both cases the surfaces are smoothed

Thanks to their large dimensions (up to 2.95 m × 16 m) the elements allow a quick installation and reduce the number of joints. Every single piece is finished in our laboratory ready for assembly and then loaded to be picked up and used immediately. We make lights for doors and windows, we realize various millings and holes for the passage of the installation pipelines. All the raw elements are free of staples and nails.

CLT is the ideal building material..
The absolute flexibility of use, the excellent versatility with the other construction materials and the exceptional load capacity allow to use it both in the residential, single-family, two-family, condominium, and in the industrial, artisanal and infrastructural sectors. The CLT is also ideal for bridges, carports, small buildings, composite timber floors and many other sectors.

We make your project alive: whether it the house of your dreams, a bridge or the construction of a futuristic industrial structures, the solid timber elements CLT translate your visions into reality.


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GLULAM

Exceptional characteristics of eco-sustainability and cost efficiency combined with architectural merit. Laminated wood has extraordinary mechanical properties and for this reason more and more often it is preferred to traditional building materials. An excellent ratio between weight and load-bearing capacity makes it particularly suitable for the construction of structures with large spans and makes it one of the most suitable materials in the seismic area.

Perfect reaction in case of fire: the carbonized layer prevents the temperature rising in the deeper layers of the section. The rate of carbonization is constant and can be assumed as a known value. The flow rate of a structural element, for a given fire resistance request, is therefore easily calculable. The absence of thermal expansion also prevents the collapse of the deforming structure.

GLULAM is also a material with a high resistance in chemically aggressive atmospheres and has extraordinary characteristics that can respond to special needs.

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INSULATING PANELS IN TIMBER FIBER

Insulating panels made of spruce or pine.
The raw material is made up of sawmill residues and weak woods.
The wood is crushed and then decomposed into fine wood fibers by thermal and mechanical processes. The intertwining and felting undergone during pressing give the panel its typical stability. The natural resins of wood are released by decomposition with the addition of alum and after drying, they give the panel the necessary stability without having to add other binders.
To make them resistant to moisture, some hydrophobic substances (latex, wax and a bitumen substitute based on natural resin) are added, depending on the use for which they are intended, while the water process required for the pressing can be carried out inside the factory circuit.

Usage of insulating panels in wood fiber

The wood fiber panels are proposed in various thicknesses according to the applications in the internal or external section of the building:

– Hydrophobic insulating panels used as an under roof replace the planking and the protective substrate. Advantages: open to diffusion, possibility of full insulation between the supporting beams, additional insulating action, quick installation.
– Panels for constant insulation above the supporting beams.
– Insulation panels to be used between the roof beams, in the uprights and ceilings with timber beams as well as for suspended facades and intermediate walls.
– Insulating panels for façades as part of a thermal insulation compound system.
– Finished elements for dry floors, for underfloor application and for soundproofing subflooring.
– Special insulating panels for partition walls and light soundproofing.

Characteristics and properties of insulating panels in wood fiber

he wood fiber panel is permeable to water vapor and allows a type of open diffusion construction (μ = 5). The thermal insulation effect is good (λ = 0.04 W / mK) and compared to other insulating materials, it results in a greater heat storage capacity and appreciable soundproofing properties. The heat storage capacity of the panels is especially important at the attic level as it allows to obtain a good phase displacement as well as damping of the thermal peaks. In the sections at high risk of humidity, hydrophobic panels are preferably provided with the addition of natural resin. Flammability class 2, flammable normally.

Considerations on the ecological and sanitary aspect of insulating panels in wood fiber

Raw materials are inexhaustible and therefore available for practically unlimited use. Energy consumption during production is relatively high. Environmental pollution due to the dirty water discharged during production is reduced to a minimum through circulation in closed circuits. The remains of wood fiber insulating panels can be processed to produce new insulating materials or designated for composting.
This insulating material is substantially in compliance with the requirements for an ecological product and is therefore a valid alternative.

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ROCK WOOL

Rock wool production

nsulating materials composed of glass and rock wool are very similar products and are also defined by the collective term of insulating materials based on mineral fibers. This is the composition of glass wool: 65% quartz sand / old glass, 14% soda, 7% dolomite, 4% feldspar and 4% limestone. The rock wool is composed of 97% of diabase, basalt and dolomite. The rock is melted at a temperature of about 1,400 ° C and then spun into artificial mineral fibers. To obtain a certain shape stability, the fibers are mixed with the bakelite binder (phenol-formaldehyde resin) which solidifies in contact with a flow of hot air. Depending on the mechanical stability required, the percentage of binder may vary between 3% and 19% by weight for glass wool and between 1% and 4% by weight for stone wool. In relation to this, formaldehyde concentrations may occur, but after assembly they are significantly lower than the indicative value of 0.1 ppm. The binder gives the typical yellow color of the glass wool, while the rock wool owes its greenish color to the iron content. To aid melting, it is used by sodium sulphate. The insulating panels for façades are also subjected to a waterproofing treatment with hydrophobic substances based on silicone or mineral oils (maximum 1%). The oils used also bind the fiber powders.

Rock wool application

Insulating materials based on mineral fiber are proposed for all fields of application, with the exception of the walls in contact with the ground and for the isolation of the roofs with reverse structure.

– Self-locking felt (locks itself between the timber structural elements).
– Thermo-insulating felt possibly coupled with an aluminum sheet.
– Soundproofing panels (for example under floating screeds).
– Insulating panels for façades as part of a thermal insulation compound system.
As a cutting tool it is preferable to use a blade rather than a saw. If dust is released during the works, it is advisable to use a mask, a pair of glasses and protective gloves. In case of hermetic assembly, no air pollution from the environment is foreseeable.

Characteristics and properties of rock wool

Rock wool, together with glass wool, has good thermal insulation properties (λ = 0.035-0.04 W / mK), a considerable resistance to aging and an effective mould stability. This provided that it is protected against humidity because, as for all insulating materials based on mineral fibers, the thermal conductivity increases strongly already with a slight humidification.
Glass and rock wool are vapor permeable (μ = 1-2), resistant to pests and not putrescible. Flammability class 1, non-flammable. In the event of a fire starting from the temperature of about 250 ° C, the binder volatilises causing a bagging from the insulating material.

Considerations on the ecological and sanitary aspect of rock wool

Mineral raw materials are available in practically inexhaustible quantities. The environmental pollution caused by the relative production mainly concerns the consumption of energy necessary for the melting of the starting mineral substances. Powders of artificial mineral fiber are the subject of critical international discussions due to their possible carcinogenic power. On the basis of currently available scientific knowledge, however, does not seem to be any risk to human health if the fiber powders show a sufficient degree of biodegradability and therefore a short permanence within the human organism. During the processing of mineral fibers, a feeling of skin irritation can be felt due to the mechanical action of mineral fiber powders. In the event that a large quantity of dust is produced, disturbances and sensations of irritation of the respiratory tract and eyes can also be felt. During the renovations it is possible to re-use the insulating material if it is not impregnated with humidity or dirty or contaminated. Insulating materials based on mineral fibers have a high versatility of use if they are watertight to moisture and wind, a measure that is also useful for curbing the release of fine fibers.

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CORK

Cork production

Raw cork and natural granulated cork are obtained from the bark of cork oak, cultivated mainly in Portugal, Spain and north-western Africa. Today the insulating panels of this material are produced exclusively in pure expanded version, without adding other substances. The bark must be ground and the granulate obtained is cooked in special pressure tanks with water vapor at a temperature of about 370 ° C. During this process the cork expands from 20% to 30% and is bound by its own resin.

Application of cork

The cork is proposed in various ways:
– Insulation panels for trampling sound insulation.
– Loose granulated cork for thermal insulation, for example in masonry gaps.

Characteristics and properties of cork

In the case of cork, the combination of good thermal insulation properties (λ = 0.04 W / mK) with a high heat storage capacity is observed. It is able to store more heat than the mineral fiber insulation material. The panels are relatively insensitive to moisture and in case of influence they lose little of their insulating effect. The coefficient of resistance to water vapor diffusion μ for agglutinated cork panels is (μ = 8) and for granulated cork is (μ = 5). The cork has a stability of shape and a permanent elasticity. It is insensitive to insects and fungi. It is advisable to remove cork dust, especially during assembly operations. The pose does not involve any problem. This material has a normal degree of flammability (class 2) and with soluble glass becomes hardly inflammable (class 1).

Considerations on the ecological and health aspects of cork

Cork oak grows in the Mediterranean basin, particularly in Portugal. The availability of this material could also increase in the future because currently only a part of the available resources are processed while the growing areas are continuously expanding. The cultivation of cork oak is advantageous from an ecological point of view as it also favors the existence of local fauna and flora. The related local crafts sector ensures several jobs. The debarking is performed approximately every 10 years and is regulated by the regulations of the law. The rather long journeys take place mainly by lorry.
The expenditure of energy during production is very limited. The expanded and granulated cork often develop a very strong odor.

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SHEEP WOOL

Production of sheep’s wool

The worldwide availability of sheep from wool amounts to about 1.2 billion heads and the shearing, mandatory for the good health of the animal, makes from 2.5 to 5kg of wool per year. The wool thus obtained is washed with natural soaps and treated with anti-moth protective substances. Subsequently they are made insulating mats with only three mechanical working, carding for homogeneity, needling for compactness and cutting to obtain the desired measurements. All without the use of synthetic or natural binders. The best wool for construction is the largest and curled, unsuitable for textile processing and until now destined for disposal.

Application of sheep’s wool

Sheep wools are proposed in the form of insulating felt in rolls to be used to fill the interspaces, vertical and horizontal as thermal and acoustic insulation.

Wool is not a carrier-type insulation.

Mattresses that can be positioned between supporting beams and in the internal and external walls of wooden upright constructions. In masonry cavities. In traditional and ventilated roofs with various covers. The insulation material based on sheep’s wool, compatible with all construction materials, is particularly suitable for timber buildings as it adaptable and maintains the right level of humidity. It therefore works as a maintenance to the structures. The rolls can be supplied in different widths and thicknesses depending on the construction in which they are to be inserted and the cut can be operated with a simple pair of scissors or with a special cutting equipment supplied by the manufacturer.
– Note for installation: in vertical and horizontal wools with density greater than 30 kg / mc have perfect dimensional stability. It is sufficient to anchor the mat at the top for the time necessary to close the wall. Tiling is necessary for structures where a partially filled inner tube is provided.

Characteristics and properties of sheep’s wool

Good thermal insulation properties: thermal conductivity 0.0318W / mK – specific heat weighed 1.3 kJ / kgk.
Good acoustic properties: weighted sound absorption coefficient at the density of 30 kg / mc and thickness 65 mm = 1 (class A)
Coefficient of resistance to vapor passage μ = 2

The wool is impermeable to water but permeable to the steam that absorbs and cedes continuously to maintain the right degree of humidity. This ensures a stable insulating power to the mattresses: the air retained by the fibers remains dry and does not allow the heat to pass by conduction.

Recent findings have confirmed the ability of wool to absorb and neutralize harmful substances such as formaldehyde, Nox and Sox, present in homes. Using breathable materials ensures the cleaning of air from these toxic compounds.

Fire temperature 600 ° C.

The wool does not melt, does not drip, carbonizes quickly without transmitting the flame. Flammability class 2 (normal) Loi (limit oxigen index) 25.

he operating temperature is from minus 60 ° C. to over + 80 ° C. It is not affected by temperature changes and can be used safely even under metal roofing.

Considerations on the ecological and health aspect of sheep’s wool

Extensive sheep farming contributes to the conservation of landscape. In European regions sheep’s wool is a by-product of mothers’ sheep breeding and it is advisable to transform the surplus into a long-term product. It comes from a renewable source and is the only source of raw material that does not represent damage or impoverishment but a benefit. The expenditure of energy for the production of insulation materials based on sheep’s wool is relatively low. The processing is mechanical and takes place at very low temperatures. The production conditions can be considered positive. Unlike vegetable fibers, sheep wool must be treated against moths but once assembled, the material no longer creates any problems.

OTHERS

Il Centro dell’Isolante employs a team of highly qualified technicians and collaborators. It is thus able to offer high professionalism in the following sectors:

  • Green building
  • Wooden structures
  • Ventilated roofs
  • Thermal and Acoustic Insulators
  • Waterproofing
  • Restoration
  • Environment Division
  • Fire protection
  • Insulated panels
  • Polycarbonate
  • Building
  • Interior finishes
sistemi di isolamento termico a cappotto

The thermal insulation of the buildings from the outside, commonly known as “coatings”, had its first applications some decades ago and is still today one of the most effective insulation systems for both new and existing operations. From a technological point of view, the system involves the application of an insulating coating on the external part of the building walls. In this way it corrects the thermal bridges and reduces the effects induced in the structures and in the wall faces by the rapid or considerable variations of the external temperature.

Overview of external thermal insulation systems

Wall structure with EPS thermal insulation
Wall structure with gray EPS thermal insulation
SWall structure with HYDRAULIC FOOTBALL SILICON thermal insulation
Wall structure with thermal insulation in CORK
Wall structure with thermal insulation in ROCK WOOL
Wall structure with thermal insulation in ROCK WOOL panels
Wall structure with insulation in WOOD FIBER
Wall structure with thermal insulation in AEROGEL

We contribute to building a different future with external thermal insulation systems

With adequate insulation, thermal energy losses can be reduced by over 60%. These considerations concerning environmental protection, energy saving and cost reduction have led to the creation of a new regulation on energy savings aimed at drastically reducing energy consumption in buildings. The objective is the improvement of energy efficiency and, at the same time, the reduction of CO2 emissions.

Thermal comfort with every climate

The well-being of a person in an environment depends above all on the temperature. With the same degrees, comfort is determined by the surface temperature of the walls and the floor. Only thermal insulation guarantees a constant climate and a pleasant comfort, whatever the external climate.

Elimination of thermal bridges

The most delicate points, such as radiator niches, external edges and concrete lintels, are safely insulated. The higher surface temperature of the walls, under normal climatic conditions, makes it impossible to form condensation. With adequate ventilation, the danger of moisture in the walls and consequent mold formation is eliminated.

Reduction of thermal tensions

The dilatations of the construction elements caused by the thermal stresses are drastically reduced. The cracks caused by temperature (for example in mixed masonry) no longer appear and even the old cracked façades can be repaired extremely efficiently and without problems.

Improvement of heat storage capacity

The thermal storage capacity of the load-bearing masonry can best be used to optimize the regulation of the room temperature.

Thermal insulation systems

General aspects

System security

The thermal insulation systems are façade insulation systems that are applied to the external wall by gluing or by further mechanical fixing with plugs. The insulating material is directly coated with one or more layers of shaving. The thermal insulation method is a fully coordinated, tested and approved system that offers, with its special accessories (angle mesh, drip and joint profiles, as well as connection and closure profiles), a complete range of reliable and safe products.

These systems are tested and approved in compliance with the most stringent requirements of the European legislation (ETAG 004 – Regulation for the issue of an approval called BTE European Technical Approval). High quality products and system components ensure compliance with national approval requirements.
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Fire protection

The classification of the insulating material in terms of fire protection is carried out in compliance with the EN 13501-1 standard in the following classes: for thermal insulation systems (including a layer of plaster) at least the class D must be reached; for insulation materials at least class F. The national regulations must also be respected in relation to the type and height of the building. In the case of insulation class C, D or E with a thickness of more than 10 cm, it must be demonstrated that, in the event of fire, the system can not continue to burn independently. The different and specific national regulations must be respected.

High vapor permeability

The components of the thermal insulation systems guarantee the absence of moisture infiltration from the outside. The water absorption of these systems is considerably lower than the required value of 0.5 kg / m2 after 24 hours and therefore such as to prevent the moisture impregnation of the insulation. Through the recommended systems, permeable to steam, the humidity present in the building structure can evaporate without any obstacle from the upper layers of the coating.

Thermal insulation

Insulation systems reduce the need for thermal energy in the cold months while protecting from the heat in summer. It is therefore necessary to evaluate the improvement of the thermal transmission resistance of the wall determined by the insulation system in order to insert these values ​​into the technical calculations prescribed by the national energy saving standards.

System structure

Our systems are tested and approved according to the criteria and requirements of the ETAG004 European guide. Thanks to the use of components of the highest quality, the additional supplementary requirements of national and European standards are also respected.

Bonding

It is carried out with high quality adhesives (compatible with insulating materials). This guarantees an extraordinary adherence between the substrate and the insulating panel.

Insulating material

Panels for tested façades are used (polystyrene, rock wool, cork, calcium silicate hydrates or wood fiber).

Mechanical fixing

Depending on the conditions of use it may be necessary to further fix the insulating panel with expansion plugs. The type of plug depends on the characteristics of the support while the number of pieces varies according to the current regulations.

Shaving / Framework

It is carried out with high quality mortars (mostly the same product used for bonding) by inserting a glass fiber net highly resistant to pulling and alkalis.
Thin layer shaving system: thickness min. of skim coat 3 mm
Shaving systems in medium layer: thickness min. of scraper 5 mm.

Wallcovering

The external coating that must withstand the weather is made with products that are approved by standards and regulations. Depending on the desired product, a primer or a coat of final protective paint may be applied over the coating if this is of a mineral nature. It is available in a wide range of grain sizes, structures and colors.

Integrative products (system accessories)

The execution of all fittings and closures are fundamental to a lasting success of thermal insulation systems in terms of both functional, practical and aesthetic, in addition to compliance with guidelines. This prevents the stresses due to atmospheric agents (sun, wind, rain and snow) and connected to the use of the building (dynamics, structural physics) acting negatively on the duration of the façade.

Support and project consulting

For problems resolutions, a free, experienced highly competent technical advice service is always available to the designer, the applier and the owner.

sistemi a secco

THE SYSTEM IN GYPSUM FIBREBOARD FERMACELL

The qualities of FERMACELL gypsum fibreboard have been established in the dry construction sector since 1971. The particular FERMACELL production process, during which the cellulose fiber is homogenized in the gypsum, gives to this type of slabs a series of properties:

– large surface hardness
– resistance to break-in
– excellent mechanical resistance
– ability to absorb and give off moisture without deteriorating
– excellent dimensional stability.

It is also a winner for the following reasons:
– it’s fast and easy to lay
– it is in line with the regulations of bio-architecture and sustainable construction
– it has a low weight (very important data especially in renovations)
– it is able to hold considerable hung or suspended loads (including bookcases and wall kitchen cabinets, chandeliers and ceiling lights in false ceilings) through simple screws or wall plugs without additional substructures
– it responds to any soundproofing requirement with reduced thickness systems.

In acoustics, the gypsum fiber systems follow the principle of mass-spring-mass. Thanks to the presence of materials with different densities, these systems guarantee high sound insulation performances.

It can be used in any environment including bathrooms and kitchens: with a single material we can create partitions, false ceilings and light dry substrates, but able to respond simultaneously to the many needs of modern residential construction. The use of a single product, which summarizes many properties in itself, also simplifies logistics and reduces the margin of error on site.

Also noteworthy are the advantages compared to brickwork:
– extremely higher acoustic performances with lower thicknesses
– reduced weight
– higher execution speed
– absence of building assistance for plant crossings

FERMACELL greenline

To ensure the increasingly stringent requirements of healthy living environments it is essential to use building materials that have a low percentage of pollutants.

What to do, however, with the pollutants present daily in the walls of your home and its air?

Formaldehyde is certainly the best known among aldehydes in the past, this compound has frequently appeared in the newspapers for its harmful effects. Formaldehyde is, at high concentrations, a toxic substance that is often detected in internal environments and can have devastating effects on health.

Also other aldehydes and the so-called ketones, also known by the abbreviation VOCs (volatile organic compounds), can seriously affect well-being.
FERMACELL greenline works like this:
The surfaces of the plates are coated at the factory with an active substance based on keratin. The effects of FERMACELL greenline are based on an ecological principle of nature, ie the purifying power of sheep’s wool. As part of a natural process, the polluting elements and the emissions present in the ambient air are absorbed and eliminated in a lasting manner. FERMACELL greenline also works in the presence of coating layers, particularly if plasters and wall coatings that are extremely open to vapor diffusion are used. The effect of using the greenline series slabs was verified and confirmed by the independent institute Eco-Institut in Cologne.

FERMACELL

Dry substrates: for thermal and acoustic insulation

Dry substrates are a particularly convenient solution for making quickly screeds on slabs in r.c.p., in latero-cement or wood. FERMACELL slabs for foundations are the ideal solution for environments open to the public, such as administrative buildings, offices, hospitals, kindergartens, hotels, etc.

Each element consists of two FERMACELL gypsum fiber slabs glued in a staggered manner.

The result ensure a stable connection of the elements that resist high point loads on the entire surface. The dry substrates combine the advantages of FERMACELL plaster slabs with a fast and therefore economical laying technique. Assembly is very short and the drying and maturing times of traditional screeds are eliminated.

Even the weight is a strong point of these constructive solutions: the foundation FERMACELL 2 E 11, composed of elements of 150 x 50 cm thick. 20 mm, weighs only 24 kg / m2. In this way the loads and the related structural problems are greatly reduced.

The application of the FERMACELL underfloor elements takes place with an offset “running” floating laying and the elements can be supplied coupled with wood fiber panels, mineral wool or expanded polystyrene (EPS).

Also other aldehydes and the so-called ketones, also known by the abbreviation VOCs (volatile organic compounds), can seriously affect well-being.

FERMACELL greenline works like this:
The surfaces of the plates are coated at the factory with an active substance based on keratin. The effects of FERMACELL greenline are based on an ecological principle of nature, ie the purifying power of sheep’s wool. As part of a natural process, the polluting elements and the emissions present in the ambient air are absorbed and eliminated in a lasting manner. FERMACELL greenline also works in the presence of coating layers, particularly if plasters and wall coatings that are extremely open to vapor diffusion are used. The effect of using the greenline series slabs was verified and confirmed by the independent institute Eco-Institut in Cologne.

FERMACELL
Dry substrates: for thermal and acoustic insulation
Dry substrates are a particularly convenient solution for making quickly screeds on slabs in r.c.p., in latero-cement or wood. FERMACELL slabs for foundations are the ideal solution for environments open to the public, such as administrative buildings, offices, hospitals, kindergartens, hotels, etc.

Each element consists of two FERMACELL gypsum fiber slabs glued in a staggered manner.
The result ensure a stable connection of the elements that resist high point loads on the entire surface. The dry substrates combine the advantages of FERMACELL plaster slabs with a fast and therefore economical laying technique. Assembly is very short and the drying and maturing times of traditional screeds are eliminated.

Even the weight is a strong point of these constructive solutions: the foundation FERMACELL 2 E 11, composed of elements of 150 x 50 cm thick. 20 mm, weighs only 24 kg / m2. In this way the loads and the related structural problems are greatly reduced.

The application of the FERMACELL underfloor elements takes place with an offset “running” floating laying and the elements can be supplied coupled with wood fiber panels, mineral wool or expanded polystyrene (EPS).

The performance of drywall systems

The dry partitions for interiors, made with drywall systems, have numerous advantages compared to traditional solutions and allow to achieve high technical performances with reduced thicknesses and weights.
The drywall slabs of different types and thicknesses, can be considered dry plaster that covers structural metal warps configured for the realization of wall, counter-wall and false ceiling systems. These systems must respond to performance characteristics regarding static, acoustic and thermal behavior in compliance with national and European laws and regulations that involve all types of buildings, from homes to the industrial building.

The static

he drywall systems are to be considered self-supporting and are appropriately anchored to the load-bearing structures of the building such as pillars, beams, traditional masonry and floors of any type.
The metal structures are those that guarantee the self-supporting of the systems. The different types, sizes and thicknesses of the sheet metal of the profiles made available to the applicator are used according to the system to be built and the stresses that this will have to bear.
The parameters for the sizing of the systems are identified in the rules and laws in place for structural calculation (Consolidated Text of the Technical Standards for Construction – from July 2009) that relate to structural stresses related to own weight, surface thrusts, including wind and seismic ones.

Partitions: general features

The self-supporting drywall partitions consist of a metal structure with “U” guides and “C” shaped uprights of different sizes and thicknesses of sheet metal, to which many types of drywall slabs are screwed.

They can take different architectural forms (curves, inclined, broken, etc.) thanks to their “steel core” which, opportunely calculated and managed, is placed to support the screwing of the slabs on the geometric design configuration.

These partitions are able to respond to any request for design “performance”.

Counterwall: general characteristics

The drywall counterwalls are built close to pre-existing walls in order to improve the sound and / or thermo-insulation or to increase their resistance to fire.

IDepending on the characteristics required, the types are chosen and the thicknesses are optimized.

n the metal structure types they are substantially semi-walls which lend themselves to the correction of out-of-lead or to realignment of pre-existing walls. They also facilitate the creation of decorative effects with curved or broken sections and the insertion of niches of any geometric configuration.

Types

The drywall counterwalls can be made in two types:
– with slabs screwed on a metal structure
– coupled with insulating glued on masonry walls of any type.
Their function can be of simple coating or with both thermal and acoustic insulating characteristics.The drywall false ceilings consist of a metal structure with U-shaped perimeter guides and “C” profiles of different sizes suspended from floors or substructures by means of “pendings” of different types. Their use includes both the purely decorative use and the response to requirements for fire protection and even high sound insulation.

Innovation in dry systems for outdoor use

The PregyAquaBoard system is the innovative solution for the realization of façades and false ceilings exposed to atmospheric agents.
PregyAquaBoard is the first coated plaster slab developed by Lafarge for use in dry outdoor systems. It is able to offer a wide range of performance, technical and environmental benefits and to satisfy even the most demanding project specifications.
The value of the PregyAquaBoard solution is confirmed by the achievement of the “Technical Agrément”, the certificate of technical suitability issued by the ITC-CNR according to the UEAtc European standard.
Designed as an alternative to traditional building systems and concrete slabs, the AquaBoard slab and adhesive & shaving system is a solution with high performance and durability for the construction of external walls and claddings.

FERMACELL Powerpanel

The range of Powerpanel products is the ideal solution for all those situations where building materials are exposed to high stress (such as water, atmospheric agents or mechanical loads) whether they are interior finishes, external facades or industrial uses. Reinforced concrete slabs with glass fiber reinforcement are able to guarantee the necessary resistance. Thanks to their composition they have specific properties for special applications.

Powerpanel HD

FERMACELL HD slabs are sandwich panels reinforced with glass fiber and with a cement binder containing light inert materials. Thanks to the mineral composition of the materials these slabs are assigned to the class of building materials A1 according to DIN 4102 part 4. As a product approved from the constructive point of view, HD slabs contribute to the statics in the construction of the external walls in the timber panel type, as a support / reinforcement. At the same time, with the plaster system applied directly to the slab surface, they constitute an effective and durable protection against atmospheric agents.

The presence of granules of expanded clay and glass foam, obtained through a recycling process, guarantees a lower weight and constitutes an advantage in processing. But FERMACELL HD slabs are also characterized by their high resistance to pressure and bending, a property guaranteed by the glass fiber reinforcement resistant to alkalis, which is allowed for construction purposes.

To prevent the capillary absorption of moisture and, at the same time, maintain the permeability to water vapor, the FERMACELL HD slabs are provided at the time of the production of a so-called “volumetric water repellency” of the covering layer. The color of the slabs is cement gray, the surface on one side is smooth while on the other side it is slightly wavy.

Powerpanel H2O

The new standard in all indoor environments with high humidity.
Powerpanel H2O is a lightweight cement-bonded sandwich slab, reinforced on both sides with a highly resistant alkali-resistant glass fiber net (5 × 5 mm). The thickness of the plates is 12.5 mm.
Powerpanel H2O is made of non-combustible materials and therefore falls within the “CLASS 0” of fire reaction.

Powerpanel H2O, the answer to humidity problems, is ideal for:
– Home bathrooms and showers (especially if there is a forced ventilation)
– swimming pools, saunas, wellness centers
– toilets in public areas (schools, gyms, etc.)
– industrial kitchens, environments subject to frequent surface washout, etc.

Description of the material

Powerpanel H2O is a sandwich slab in light cement conglomerate, reinforced on both sides with a highly resistant alkali-resistant fiberglass mesh. The thickness of the plates is 12.5 mm. Powerpanel H2O does not contain flammable components and belongs to class A1 “Non-flammable building materials” according to DIN 4102. For the Italian legislation in force, the slabs, being made of incombustible materials, fall within the “CLASS 0” of reaction to fire . The 1200 mm wide sheet was designed for application on normal substructures used in dry construction partitions; the length of the standard cuts vary from 1000 to 3000 mm. The particular rough surface of the edges of Powerpanel H2O has been specially designed to ensure, with the FERMACELL joint adhesive, a solid and secure joint between the mounted panels.

FERMACELL Powerpanel TE for floors in humid environments

FERMACELL Powerpanel TE is composed of two slabs of light concrete conglomerate with sandwich structure and reinforced on both sides with alkali-resistant glass fiber mesh. The two slabs are coupled with an offset of 50 mm, so as to form the abutment necessary for gluing, screwing or crimping the various elements together.

The product, very handy, has dimensions of 1250 x 500 mm, with 25 mm of thickness (2 x 12.5 mm). A slab weighs 16 kg. On FERMACELL Powerpanel TE it is possible to apply different specific coatings for floors, such as tiles, PVC or linoleum. The slabs are also suitable for electric or water floor heating. No harmful dust is released during processing. No special security measures are required.

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Ventilated roofs – Covered with ventilated roofs

Thanks to their characteristics, the ventilated roofs allow a considerable saving on energy consumption and maintenance costs. The inner tube allows in fact the ventilation of the roof and the undermantle, it favors the disposal of moisture maintaining the healthiness of the mantle, reduces maintenance costs and increases the performance of the insulation.

The roof is a very important element in a building: it protects from atmospheric agents, isolates acoustically, protects from heat dispersion in winter and from excessive temperatures in summer, allowing correct breathability by acting as a hygroregulatory element of the underlying environments. It is also an important aesthetic element of completion of the building.In order to correctly fulfill all these functions, coverage must respond to specific characteristics that are often neglected even to the detriment of the health of the inhabitants of the structure. One of the often very underestimated requirements is ventilation.

Features of ventilated roofs

Il tetto ventilato è la più avanzata tecnica di costruzione di tetti con isolamento termico in falda. È un sistema le cui caratteristiche fondamentali (sicurezza, ventilazione, traspirazione e isolamento) garantiscono un ambiente più salubre e un maggior comfort abitativo.

Advantages of the ventilated roof

The ventilated roof is the most advanced roof construction technique with thermal insulation in stratum. It is a system whose basic characteristics (safety, ventilation, transpiration and insulation) guarantee a healthier environment and greater living comfort.

Some of the numerous technical and functional advantages of ventilation:
– expulsion of hot air during the summer before the external heat is transmitted to the rooms below;
-dampling of the water vapor that tends from the rooms below to transmigrate upwards preventing its condensation on the cold intrados of the tiles;
– distribution during the winter of the heat that rises from the housing avoiding localized melting of the snowpack;
– expulsion of possible infiltrations caused by heavy rain or by the absorption of the tiles.

The acoustic insulation is that material used to contain the parameters of noise inside and outside the building within the values of environmental acoustic comfort.

The transmission of noise depends on the density of the material with which the various elements of the building are made; a correct sound insulation is obtained by evaluating every most suitable insulation system. Acoustic materials can be divided into categories, such as: sound-absorbing, sound-insulating, anti-vibration materials.