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Polyurethane foam products for waterproofing and thermal insulation

Polyurethane foam ( PU ) is a synthetic and duroplastic, highly crosslinked and non-fusible, obtained through the mixture of Polyol and Isocyanate, two components obtained chemically from oil and sugar.

The foam resulting from the combination of these elements, is designed especially for application by projection and injection on various surfaces, creating a light layer about 1 inch thick and even repairing certain types of damage that may occur in areas where applies
Properties



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•     Waterproofing
•     Thermal and Acoustic Insulation
•     It is lightweight and resistant to light pedestrian traffic
•     Adheres very well to horizontal and vertical surfaces
•     Generates a Monolithic layer (without joints or joints)
•     Seals cracks on surfaces
•     Seal ducts
•     Resistant to chemicals and solvents
•     High durability of more than 25 years (if it is not in contact with the sun)
•     Reduces maintenance and energy costs by air conditioning
•     Useful to create incredible scenographies
•     Fast application

Application areas

In this presentation the Polyurethane serves as waterproofing and thermal insulation on concrete surfaces, brick, partition, masonry, asbestos sheet, wood and steel, so it can be applied in the following establishments for the benefit of them:

•     Hotels
•     Residences
•     Educational Teams
•     Businesses and Industries
•     Laboratories
•     Poultry, swine, fish farms, etc.
•     Ceilings of various materials
•     Ducts
•     Slabs and walls
•     Division walls
•     Refrigeration chambers
•     Body of trucks and buses
•     Heating and air conditioning ducts

Application Form

Projected polyurethane foam (spray) is made hot, using a GRACO Reactor E-XP2 high pressure projection system, capable of exerting a pressure of up to 2,700 psi, at a temperature of 70 ° C, creating a layer monolithic on the area of ​​application, so it does not present unions. In addition, it penetrates every pore of the surface so it has the ability to plug cracks. It is an effective system of thermal insulation and adopts the shape of the surface on which it is applied, with a great capacity of adhesion.

It has a range of densities that allows the customer to choose the most suitable product for use in residences, shops and various industries. At AEPSA RIVIERA we offer the application service of polyurethane foam , made by highly qualified personnel for a professional job.

Advantages of Polyurethane Foam

It acts as an excellent waterproofing and as a thermal insulator achieves a temperature difference of up to 6 ° C between the outside and the inside of an area with polyurethane foam; presents the highest "R" values ​​per inch, compared to other materials. It is also a great material for the insulation of pipes through half rods and prefabricated polyurethane plates .

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Polyurethane foam: Different types and utilities

Polyurethane foam is a material that is used for thermal and acoustic insulation (among many other functions), both in building and industry.

Before any project related to the isolation that we may want to enjoy in our home, the professionals of the sector analyze the factors to take into account for the work and it is quite likely that we advise the use of these " polyurethane foams ".

In this article we explain why we choose polyurethane foam as the best material for insulation and so that, in the future, you know the benefits you can get if we advise you to use it in your home.



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Polyurethane foam: What it is and why it is so appropriate in insulation

If we get a little technical, we can identify the polyurethane foam as the chemical reaction of two compounds, the polyol and the isocyanate . But although knowing the origin of the formation of a material is always interesting, the truth is that it does not really explain what it is.

To be more practical, we can identify this product as a foam, which is applied by spray on those surfaces where we need to act their properties. This has also caused that in many cases it is known as "projected polyurethane".

However, the way to place it depends on the type of polyurethane foam chosen, as well as the surface where it is applied and the equipment available to us.

The reason that it serves so effectively for problems related to insulation, both acoustic and thermal , is that its properties are an excellent insulator both in terms of the temperature of a home and the outside, as well as the existing noise.

In addition, its composition in the form of foam, makes it useful even where other insulations of granulated composition do not arrive and with an even simpler application.

By listing the main advantages of polyurethane foam we can find the following:

•     It allows a very versatile use , in large or small quantities, in wide or small spaces, in cavities or fissures.
•     It has a great resistance to air , which makes it an excellent source of insulation.
•     It also acts as a vapor barrier , achieving as a secondary effect to reduce humidity in the home.
•     Wherever it is applied, it also has the property of improving the stability of the infrastructure.

Types of polyurethane foams

Since polyurethane foam can be used in multiple situations, its variety has also been adapted to each specific type of need.

polyurethane foam, different types and uses Cantitec Granada Málaga Almería Jaén

Below we identify the different types of polyurethane foams existing in the insulation sector and their different characteristics:

Polyurethane foams inside and outside

Depending on whether we work in an insulation work on the interior of the house or on the exterior façade, the polyurethane foam may have to withstand different temperatures . In most cases there is no difference in the type of foam used, but for extreme cases there are alternatives.

In this way, it is possible to use polyurethane foams created to withstand temperatures ranging from -10º to 35º.

Polyurethane foams for joints and cracks

In a comprehensive insulation or waterproofing service , we can identify joints and cracks in the house that will affect the environmental comfort of the stay. To cover them, polyurethane foam can be a highly recommended option.

For example, with it we can apply it flexibly, in small or large quantities and without risk of cracking in the future, as it does with other materials.

Polyurethane foams to resist heat

One of the most striking properties offered by the injection of polyurethane foam in certain types is to be flame retardant, that is to say that it can be a resistant or retardant material of fire action .

This type of special foam is useful in those structural areas that require a specific fire resistance, such as in adjoining walls, electrical installations, cable or vents, in fire walls, emergency doors, etc.

Polyurethane foams for tiles

One of the most frequent jobs in which polyurethane foams are required is that of roof repair and insulation . In fact, in those formed by tiles, a specific typology for this material can be applied. The secret lies in its adherence, which is notably superior so that its usefulness is effective, as well as to avoid damaging the surface on which it is applied.

When to use polyurethane foam

We have already identified some frequent uses of polyurethane foam , but we did not want to miss the opportunity to specify more those situations in which its application is more than recommended. Some of them may be happening in your own home.

Thermal insulation cases

In some homes it is impossible to control the indoor heating or the air conditioning. Consequently, we try to act on the existing installation, causing greater energy and economic expenditure.

The long-term and most efficient solution is that of thermal insulation work . Among the many existing materials for this work, we can take advantage of the properties of polyurethane foam (low conductivity, greater control of thermal bridges) to obtain optimal results.

Acoustic insulation cases

This material also has very efficient properties to isolate external and internal noise , so in those homes that need this service, polyurethane foam becomes a perfect ally.

To control humidity

Its waterproof character allows a greater transpiration, being a barrier for the steam and preventing the appearance of humidity .

In those homes where they have already appeared, there will first have to solve the problem and subsequently apply the insulation with polyurethane foam to prevent future dampness.
In infrastructures or installations with risk of fire

In a home, as in residential buildings and businesses, there may be several existing elements to prevent the spread of fire, the risk of short circuit or allow evacuation of residents or professionals without risk. With polyurethane foam what we achieve is to act on the filling, sealing and joints or coatings, to achieve a completely fireproof installation.

In any case, polyurethane spray has proven to be one of the best materials for the insulation of roofs, facades, chambers and those rooms where we need a material capable of being applied to any surface, even the smallest and in a comfortable way and effective. Whenever, of course, we have the appropriate polyurethane foam and qualified professionals in their correct application.

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Polyurethane foam good for construction

Polyurethane foam
Polyurethane Foam is a synthetic and duroplastic material, highly crosslinked and non-fusible, obtained from the mixture of two components generated by chemical processes from oil and sugar: Isocyanate and Polyol.

There are two ways to obtain it: by projecting both components on a surface at the same time, or by casting (mixing both materials).

This solid, uniform and resistant structure has a cellular formula indicated for its use as an insulator, thanks to the aforementioned characteristics, as well as its rapid application, insulating capacity and its ability to eliminate thermal bridges. Polyurethane foam is also commonly used in waterproofing.



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Thermal Properties of Polyurethane Foam
Polyurethane foam has a high insulating capacity due to the low thermal conductivity of the foam gas in its closed cells, which can be located at 10 ° C = 0.022 W / m · K, according to the UNE 92202 standard, although this value rises slightly with the passage of time, until finally stabilizing. After 9 months of aging, it is considered that the value is 10 ºC = 0.028 W / m · K, in accordance with UNE 92120-1, which represents a 25% improvement with respect to the average of the other products used in thermal insulation (for example, mineral wool, extruded and expanded polystyrene foams ...).

Polyurethane foam has a great resistance against the effects of time and has a long useful life, remaining without deteriorating for more than 50 years.

The Rigid Polyurethane Foam obtained by projection is the most efficient insulating material, since it requires a minimum thickness to isolate the same as any other material. This also supposes an economic benefit since for a same degree of isolation, the Polyurethane Foam needs a smaller thickness, which implies a greater habitable surface.

Waterfront Properties of Polyurethane Foam
The CTE seeks to limit the risk of the inadequate presence of water inside buildings and their enclosures, and therefore requires certain degrees of impermeability to the facades. As stated by the CTE, continuous intermediate coatings - such as Polyurethane Foam - are one of the best alternatives to meet these waterproofing requirements.

Polyurethane foam is a continuous intermediate coating because it meets the aspects established in the DB-HS1 for these materials related to sealing, resistance to cracking, adhesion, permeability and physical and chemical stability.

With a continuous intermediate coating such as Polyurethane Foam, it is not necessary to render plaster as the material itself meets the requirements of impermeability. This circumstance also supposes another economic benefit, so much by the saving in mortar for the plastering as by the surface that is gained when this is not necessary. Being classified as intermediate continuous coating also means an absence of pathologies in the walls under extreme conditions.

Properties Against Moisture of Polyurethane Foam
The values of the Polyurethane Foam in what refers to humidity guarantee, in most cases and depending on the density, the absence of interstitial condensation, making possible the transpiration of the enclosure, which is the most beneficial effect for prevent all kinds of diseases (hygiene, health, comfort ...). And also to maintain for a long time the characteristics of the constructive solution.

Thus, Polyurethane Foam, unlike other products used, meets two very important characteristics for a material used in insulation: it is waterproof and allows perspiration, in any climate and without the need for a vapor barrier.

Properties Against the Fire of Polyurethane Foam
Polyurethane foam is an organic material, and therefore fuel, and numerous studies have shown its good fire behavior in final application of use. In a finished work, the insulating material is not visible, but behind surfaces such as walls, walls, floors and ceilings.

Therefore, the suitability of the use of Polyurethane Foam will depend to a great extent on the fire resistance values of the materials that make up these surfaces, in addition to the place where it will be projected.

In addition, there are some varieties of polyurethane foam with protection against fire, which are classified from C, s3-d0 to E, according to the UNE-EN 13501 standard.

Environmental Properties of Polyurethane Foam
The use of polyurethane foam in homes contributes to the consumption of energy in these (consumption that produces greenhouse effect) is much lower.

Thus, considering a 50-year polyurethane life cycle, a very positive balance is obtained on the greenhouse effect when using said product as a thermal insulator.

Acoustic Properties of Polyurethane Foam
The easy application of Polyurethane Foam is an advantage in this case, because the products applied by panels need a really careful application.

The Polyurethane Foam used for thermal insulation is a light and low density material, composed of closed cells (> 90%). This product, combined with other materials, is very effective to reduce the transmission of sounds and to dampen vibrations and eliminate resonances.

Basic Regulation of the Application of Polyurethane Foam
In the application of polyurethane foam it is essential to determine the thickness required for each construction solution and, for this reason, the person in charge of the work must abide by the requirements established in the following standards:

• UNE 92120-2: 98 Standard: Thermal Insulation Products for Construction. Rigid Polyurethane foam produced in situ. Part 1: Specifications for polyurethane systems before installation. Part 2: Specifications for the installed product.
• UNE 92310: 2003 Standard: Measurement and Quantification Criteria for Thermal Insulation Work in Industrial and Building Installations. Rigid polyurethane foam produced in situ by projection.
• RP 20.06: Particular regulation of the N Mark of AENOR for the Application of Rigid Polyurethane Foam in situ.

Process of Measuring the Thickness of Polyurethane Foam
To measure the thickness, the operator will have a graded punch or a similar tool whose diameter does not exceed 2 mm. During this process, Standard UNE 92120-2 indicates that ten points must be taken within the surface, five of high thickness and another five apparently of low thickness.

After this process, the result of the calculation of the thickness will be the average of the different measurements, without counting the four extreme values, and none of the measures can be considered inferior by more than 25% to the general average.

This process will be carried out at least every 75 m2 and, at least, for each unit of work and per day. In the case of an intense frequency level, the particular regulation of the N Mark indicates that the measurement must be made every 50 m2 and, at least, one measurement per unit of work per day.

Properties of the Application Process of Polyurethane Foam
Professional applicator. Unlike other insulating materials, polyurethane foam requires a professional applicator to project the product on site, which is a guarantee of good installation.
On-site projection This process guarantees the speed of execution, the simple solution of the thermal bridges and also it is not necessary to have space for the insulation to be stored.
Sole insulating product with the possibility of double certification (certification mark of the products before the application and the installed product).
Rapidity in the application. The speed of its application makes Polyurethane Foam the most applied material per day, in m3 employees.
The Polyurethane Foam does not need previous plastering, as it is a continuous intermediate coating.

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What polyurethane foam is and what it is for

Polyurethane foam is a very versatile material that is used in different areas: office renovations , housing construction , ships, airplanes, etcetera. If you want to know what polyurethane foam is and what it is for , read on and we will explain it carefully.

Polyurethane is a substance created from a chemical reaction . It is a combination of polyol and isocyanate that makes this material can be molded and handled without losing its physiology.

The polyurethane can be crushed, scratched and stretched without any problem, being a tremendously resistant material that can be used in solid, liquid or foam. In the case in question, it is used in its liquid state and after being applied it tends to expand until it acquires its solid form.



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It has a multitude of properties that work very well in the construction sector: water-repellent insulation, thermal insulation and as an anti-humidity material .

In this way, the polyurethane foam acts as a thermal bridge and, in addition to strengthening the structure , eliminates the transmission of cold and heat . This supposes a considerable saving in matter of refrigeration and heating.

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Characteristics of expanded polystyrene

In addition, its structure is resistant to water , so it is perfect for all types of structures, whether irregular or showing imperfections. Thus, polyurethane foam prevents leaks and protects against corrosion .

Uses and application

•     It works as an insulating substance in ceilings, basements, walls and attics.
•     It is used in insulation panels .
•     As insulation in the industrial sector in cold rooms, tanks, etc.
•     It is effective in boats, floating docks and ships .
•     It serves to enhance the structure of the wings of the aircraft .
•     It is also used in bodies .

Other uses

•     The polyurethane foam prevents roofs from rising and increases the strength of the wooden frames inside the walls.
•     It serves to fix irregularities in the walls , as well as to fix PVC pipes .
•     It is used in roofs, being very useful in the construction of drainages and to increase the resistance to abrasion .

The main advantages of polyurethane foam

•     Polyurethane foam contributes to the environment . It is used to save energy, so it moderates global warming by reducing the consumption of fossil fuels .
•     Polyurethane strengthens any structure and makes it resistant to vibrations, wind and storms.
•     Used inside buildings, it means a considerable saving of money in cooling and heating.
•     As a structural sealant, it is a magnificent noise insulator .
•     Its properties last in time without hardly any wear and tear.
•     It potentially reduces the growth of the bacteria and the mold that usually take shelter inside the structures.
•     Its use is very simple and its adhesion is magnificent, without the need to use other methods or systems as extra adhesives.
•     It effectively reduces the filtration of certain external elements that are contaminants such as gases.
•     It is very easy to transport , as it is not a bulky substance that requires special storage.

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Projected polyurethane: an optimal insulating material

Polyurethane systems are one of the most used materials for the insulation of buildings due to their excellent properties . Its structure guarantees the air tightness of the buildings, the impermeability, the absence of joints as well as a low thermal conductivity, which gives the buildings a great thermal behavior and makes them more energy efficient.

Synthesia Technology is a manufacturer and distributor of   polyurethane systems   for building and industry. The main application of these systems is through projection. The result is known as   Projected polyurethane or projected polyurethane foam .



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Origin of the projected polyurethane: how is it obtained?

The rigid polyurethane foam is obtained when two chemical products, a dissociant and a polyol, are mixed in the presence of suitable catalysts and activators.

In the application of rigid foam by projection for a function of thermal insulation in the construction sector, the mixing takes place in a small chamber located in the projecting gun.

Once the components are mixed, the heat released during the reaction is used to vaporize the blowing agent, which is the cause of the transformation of the mixture into foam with an approximate volume of 30 times the volume of the components in liquid state.

It is important to know how to correctly apply the projected polyurethane , taking into account a series of factors that range from atmospheric conditions   and the   machinery adjustments   up to the types and forms of the applications.

In this video you can see in detail how the rigid polyurethane foam is formed from these two components:

Properties of projected polyurethane foam

Thermal properties

The projected polyurethane has a high insulating capacity due to the low thermal conductivity of the foam gas in its closed cells, which can be placed at 10ºC = 0.022 W / m · K according to the UNE 92202 Standard, although this value rises slightly with the the passage of time until finally stabilizing.

After 9 months of aging, it is considered that the value is 10ºC = 0.028 W / m · K according to UNE 92120-1, which represents a 25% improvement with respect to the average of the other products used in thermal insulation (for example mineral wool or extruded and expanded polystyrene foams).

This material presents a great resistance against the effects of the passage of time and has a long useful life, remaining without deteriorating for more than 50 years.

The rigid polyurethane foam obtained by projection is the most efficient insulating material, since it requires a minimum thickness to insulate the same as other insulating materials . This good thermal behavior in relation to the thickness supposes an economic benefit, since no useful surface in a building is wasted.

The combination of thermal and economic benefit has been one of the main drivers of market development of projected polyurethane, which is in full expansion, as we observed on the IPUR website .

Properties facing water

The Technical Building Code seeks to limit the risk of the inadequate presence of water inside buildings and in their enclosures. As stated by the CTE, intermediate continuous coatings are one of the best alternatives to meet these impermeability requirements.

The projected polyurethane complies with the requirements established in DB-HS1 for insulation materials related to sealing, cracking resistance, adhesion, permeability and physical and chemical stability .

With a continuous coating like the projected polyurethane of closed cell, it is not necessary to render plaster as the material itself meets the requirements of impermeability. This supposes an economic benefit and of space, since the necessary thickness is smaller.

With regard to humidity, in most cases the projected polyurethane guarantees the absence of interstitial condensation, due to the relative values ​​of humidity and its density. This characteristic allows the transpiration of the enclosure, which avoids pathologies related to the internal health and, at the same time, guarantees the durability of the building.

Properties in front of the air

An optimal insulation system must combine the thermal properties with the good behavior against air. That is to say, it must guarantee the watertightness of the building .

Air tightness is one of the concepts around which passive houses revolve, allowing savings of up to 80% compared to a traditional building.

The projected polyurethane is a continuous insulation : this continuity forms the barrier against air that allows the envelope of the building to have an adequate seal.

Properties in front of the fire

Polyurethane systems with high fire resistance are totally safe insulation in buildings, both structurally speaking and for the safety of their occupants. You have to knock down the   false myths that exist around this type of isolation through the various tests that have been carried out.

ANPE conducted a comparative study of the reaction to fire of constructive solutions of polyurethane and mineral wool in final condition of use . In the article you can download the videos of the comparative tests to know firsthand the results.

Projected polyurethane systems with insulating function

As we have pointed out above, Synthesia Technology is a manufacturer and distributor of polyurethane systems for building and industry.

In the case of projected polyurethane, our polyurethane systems applied to the building focus on three functions: thermal insulation, acoustic insulation and anti-radon barriers .
Polyurethane sprayed as thermal insulation

We can say that the projected polyurethane is fashionable and this is largely due to its functions as a thermal insulator. Some examples of applications of our projected polyurethane systems with thermal insulation functions:

•     Isolation of floors .
•     Waterproof ventilated facades .
•     Rehabilitation of covers .

Polyurethane sprayed as acoustic insulation

We have a range of projected polyurethane systems that, in addition to the function of thermal insulation, have excellent acoustic characteristics. You can read more about it at:

•     Insulation for floors between floors .
•     Acoustic insulation for floors .

Polyurethane sprayed as an anti-radon barrier

Our newest polyurethane system combines the function of thermal insulation with that of anti-radon barrier. The new ECO superheated polyurethane projection is presented as an efficient solution against the danger of radon gas in buildings.

This anti-radon barrier is optimal both in new construction and in buildings already built.

The abovementioned are just some examples of our polyurethane systems designed for building . We have a wide variety and a specific line of polyurethane for industrial applications.

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Insulation with polyurethane foam, a protective layer

Efficient. Polyurethane foam is an insulating material that also contributes to energy savings. Characteristics, properties, applications and economic advantages.

The energy efficiency of architectural works is key to achieve direct savings through the reduction in consumption in air conditioning (either in the initial investment or in daily consumption). In addition, this attribute allows to generate greater comfort at a lower cost.

The only way to achieve this goal is through efficient thermal insulation. In this sense, among the possibilities currently presented by the market is the rigid polyurethane foam, which provides a concrete solution to the high demands of sustainable projects.

Due to its high thermal effectiveness, this material has marked advantages in the price-quality ratio compared with other insulators. This has made it become a leading product, say from the company Hi Tec Polyurethane.



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Main features

Multiple conditions make polyurethane foam a highly chosen material when selecting a product for the insulation of homes. Among the main virtues that are recognized, are:

• · Thermal insulation: as it has a very low coefficient of thermal conductivity, it facilitates significant savings in the use of energy for air conditioning. In this way, it favors sustainability and promotes environmental care.
• · Water-repellent insulation: protects from moisture. In addition, placed in the correct densities, guarantees impermeability.
• · It is good acoustic insulation: it generates a barrier against the annoying noises of the environment.
• · Anti-condensation: forms a monolithic layer without joints, solving the problem of internal rain.
• · Resistant to fire: it is a material qualified as self-extinguishing.

Properties

But that is not all: beyond its own characteristics, in terms of versatility at the time of applying it and its result in time, a series of properties is attributed to it, among which are:

• · Ease of application for its spray system, which reduces the cost of labor and the time of installation.
• · Application in construction sites or finished buildings.
• · Application "in situ".
• · Prolonged duration
• · Excellent adhesion to all types of construction materials.
• · It is continuous: it eliminates thermal bridges, with the consequent saving of energy.

Application

The application of polyurethane foam in situ by spray system provides excellent thermal insulation and anti-condensation, which guarantees a perfect waterproofing. This is due to the high density of the material, in which a barrier is achieved that prevents the penetration and filtration of water.

One of the most important resulting benefits is maximum insulation with minimum thickness.

Even in the case of in situ projection (normally used in interior and exterior facades), other performances can be added: high adhesion, effective adaptability, impermeability, continuous application without joints or thermal bridges.

Its adhesion occurs on any material and, once placed, does not crack before changes in temperature or expansion.

Where can you apply

In family homes, you can apply on the roof or below it, whatever your material. It can also be used on walls, where good results are achieved.

It is highly recommended in double wall systems, as an effective insulator against moisture.

However, its use has also been generalized in large-light houses, where it reaches optimal levels of temperatures over large areas.

These characteristics have led to its use being extended to animal breeding sites and also to cold storage chambers, storage tanks and silos and, in general, to industries of all kinds.

Economic benefits

Technicians and specialists also highlight a series of economic advantages. For them, the application affects construction costs and housing services.

• · Significantly reduces the costs of heating and / or cooling environments.
• · Polyurethane insulation requires very little space, reducing construction costs.
• · The polyurethane foam will not yield or deform over time, which makes it an excellent long-term investment.

Costs

The square meter, from $ 85 + VAT

Source: own survey in business of the sector.

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Advantages of Polyurethane - PROFOAM

Advantages of Polyurethane

This method is exceptionally efficient since it is the product of greater insulating power that is known. The chemical inertia of the polyurethane polymeter once formed, makes it the ideal insulator since it is not only the insulator with the lowest thermal conductivity but also inherent to the action of almost any chemical compound.



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*   It can be applied both in new works and for repair work.

*   Extends the useful life of the treated surfaces.

*   It confers structural rigidity. The increase in the structural resistance of the surfaces on which they are applied is so noticeable that the calibers of the construction materials can be reduced when they are isolated with polyurethane foam, unlike structures that are not isolated or that are isolated with other materials, which even weaken the structures by the multiple fixing points they require and the corresponding perforations.

*   It offers the additional advantage of sealing fissures, cracks and ensuring a tight seal, since the polyurethane foam does not absorb water.

*   Once the foam is applied, the phenomena of expansion and contraction of the surfaces, without peeling or cracking, by changes in the ambient temperature and the humidity, reducing the loads for these concepts and increasing the resistance of the construction materials, are considerably reduced. .

* The rigid foam adheres to any clean and dry surface, whatever the shape.

*   It acts as a vibration damper.

*   It can be applied internally or externally.

*   It has a high thermal-insulating power.

*   It achieves a significant saving of energy used in heating or cooling. It must be taken into account when performing the cost analysis, the energy saving over time by the use of the thermal insulation itself and the effectiveness of the system in particular.

*   It is a continuous insulation without a joint.

*   Eliminates thermal bridges.

*   It is waterproof.

*   It does not overload the structure due to its lightness of weight.

*   Its duration is indefinite.

*   The polyurethane foam is ecological, free of CFC (chlorofluorocarbon), does not damage the ozone layer.

*   Decreased mortality in hatcheries due to temperature changes. Does not absorb environmental humidity.

*   It is not edible and therefore is not subject to the action of rodents and pests or the formation of bacteria.

*   It is anti-condensation, avoids the formation of humidity of condensation, since a thermal barrier is established that will prevent the inner enclosing partition from reaching a low temperature and condense the humidity inside. By forming a monolithic layer, without intermediate spaces, the problem of condensation dripping is solved.

*   Imputrescible, resistant to aging, abrasion and the action of roots, molds and other organic agents.

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All the advantages of insulation with polyurethane foam

The professionals of Aislamientos Valdoviño are specialized in thermal insulation with projected polyurethane foam . Thanks to this technique, what we achieve is that our customers save up to 50% on their energy expenditure , gain comfort and quality, and also eliminate the cold wall feeling of their homes.



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There are many advantages of this type of polyurethane insulation projected against other materials and techniques. We tell you some of them:

•     Improve comfort and get savings on bills . In Isolation Valdoviño we know that a house isolated with polyurethane foam projected produces a better comfort for the inhabitants of a house and, in addition, it helps them to save on their bills since they consume less energy.
•     Energy saving . Thanks to the use of projected polyurethane what we get that in the houses there is a lower expenditure of energy which contributes to the care of the environment while producing savings in our pockets.
•     Greater housing space . Thanks to the insulating power and the properties of the projected polyurethane, with a lower thickness of material, we achieve greater insulating power than other materials. In this way what we can achieve is to increase the usable area of ​​the house.
•     Quick installation The professionals at Aislamientos Valdoviño have innovative machinery, which is why we are able to carry out a very quick installation of the insulation, in less time than the installation of other materials.
•     Insulation without joints or fissures . The polyurethane applied by projection creates a continuous layer on the wall, so that we get a layer without joints, which causes the thermal bridges to be eliminated.
•     Perfect insulation for spaces with complicated geometries . In Isolation Valdoviño , when working with projected polyurethane, we can adhere this insulating material to any surface, be it the geometry and the space in which we work. In this way what we do not need is to cut or install fixed parts.
•     Security in case of a fire in the house . The polyurethane foam applied to the walls by projection is a material that meets all the required levels of fire safety.
•     Insulation against moisture and noise . In addition to isolating our house from the cold, thanks to the insulation with projected polyurethane, we were able to isolate the space from the noise coming from the outside as well as from the humidity.

In this way, thanks to all these advantages and many others that the projected polyurethane presents, the professionals at Valladvino Insulation believe that it is the most recommended option to achieve perfect insulation of the home .

Do you want more information? Would you like to get a 10% discount on the final budget of the installation of the insulation with projected polyurethane?

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What uses does polyurethane foam have in construction?

Many will wonder what exactly polyurethane foam is used for when building. The answer is very simple: it is one of the most powerful thermal insulators on the market. It is obtained from the mixture of two chemical components: Isocyanate and Polyol. Due to its durability, high resistance and easy application, it has become one of the essential materials to keep buildings cold or warm according to the season of the year.



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Introduction to the uses of polyurethane foam

There are two ways to apply the rigid polyurethane foam under construction (provided that the current regulations regarding the thickness required for each construction situation are respected). These are: - projecting its two components simultaneously on the surface in question ( projected polyurethane )
- mixing both chemical elements before application General attributes One of the most important resulting benefits is maximum insulation with the minimum thickness . Even in the case of "in situ" projection (normally used in interior and exterior facades), other performances can be added: high adhesion, effective adaptability, impermeability, continuous application without joints or thermal bridges, double quality certification (product and installation).

Thermal and waterproof properties

The insulating capacity of polyurethane foam comes from the low thermal conductivity of the gas emitted by its closed cells. This feature places it above all other products of this type. It should be noted its resistance over time and its long duration without deterioration (which may exceed fifty years). Its reaction to water There are many properties of this material that make it really waterproof: tightness, adhesion, physical and chemical stability, permeability and resistance to cracking. When placing the polyurethane foam as an intermediate continuous coating, no plaster is required (mortar coating), which is a great economic benefit.

Attitudes towards fire and humidity

Once the work is finished, the polyurethane foam will be placed under ceilings, walls, walls and floors. Bearing in mind that polyurethane is combustible material, such surfaces must be composed of fire resistant components so that there is no danger. Its reaction to humidity This product is waterproof, which allows the transpiration of the enclosure. The latter prevents all kinds of drawbacks that drag moisture, such as fungi. Finally, it is essential to highlight the acoustic properties of the foam (acoustic foam). Being a light material and high density, if combined with other materials, it is very effective to eliminate resonances, noise, and everything related to the transmission of sounds. Undoubtedly, polyurethane foam is preferred by many architects when choosing a quality insulation.

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Insulation with spray polyurethane foam

Are you looking for a way to differentiate your business? Get closer to greener building practices such as the use of polyurethane foam insulation that offers greater energy efficiency while reducing installation costs.

Insulation with polyurethane foam in aerosol acts as an insulator and also as an air sealant in residential structures. The insulation is spread between the nooks and crannies of the houses - climbers, beams, crossbars - and it expands to fill the space. As a result, in one step the cavities in the walls are filled and the air holes are sealed.



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The two types of filling foams - open cell (isocyanurate) and closed cell (polyurethane) - are excellent thermal insulators. Closed cell foams generally weigh more and have a higher R value than the open cell foam.

Once dry, the excess foam is removed with a handsaw.

However, most polyurethane foam insulation products have R-value ratings per inch twice that of insulation rating on fiberglass blankets.

Applied in liquid form, the sealing foam insulation contains a polymer (such as polyurethane or modified urethane) and a foaming agent.

Certified installers, who are trained to use the equipment and chemical mixtures, spray the liquid preventing excessive spraying, and give the walls a proper finish.

Once the insulation is sprayed with polyurethane foam, it expands in a matter of minutes to fill the cavities. After it dries, the excess foam is cut out and a thermal barrier is installed, usually panels of compressed material (drywall). Because the expanded polyurethane insulation does not shrink, buckle or biodegrade, it helps minimize problems once the wall cavity is covered.

The sprayed foam completely fills the angular beams of the roofs.

Benefits of polyurethane foam

The ability to expand in narrow areas makes polyurethane foam an ideal product for insulating steel frame structures and for filling - areas in tiny places such as window lintels, small uprights, beam flange areas, around of electrical distribution boxes and other inputs- where cutting fiberglass fillings of the appropriate size is often difficult and labor-intensive.

By blocking wind and air filtration, foam sealant generally eliminates the need for additional techniques to seal tightly, such as caulking, applying drainage membranes and vapor barriers and taping joints.

Another benefit is the ecological composition of polyurethane foam. All polyurethane foams consist of resins derived from agriculture and do not contain any type of hydrochlorofluorocarbons (HCFC) that are harmful to the earth's ozone layer. Nor do formaldehyde emanate - a potentially harmful volatile organic compound.

Although insulation materials with polyurethane foam may initially cost more than traditional fiberglass fill insulations, savings increase over time. First, the use of polyurethane spray foam insulation has a competitive cost because it reduces construction time.

Second, it reduces the number of specialized contractors needed for the job. Finally, the superior value R of the foam offers greater energy efficiency so that smaller cooling and heating systems can be installed. All these three reasons - higher productivity, energy savings and environmental protection - provide benefits to the contractor and, in the long run, also to the home buyer.

Process of certification

The NAHB Research Center administers the Insulation Contractors Certification (ICC) program, evaluating participating contractors externally. The Research Center joins with Certain Teed Corp., which supplies the Installer Quality and Training Systems for the program.

Certified installers are reexamined every two years and are subject to visits to workplaces conducted by the Research Center's auditors.

"Builders are smart to hire contractors who participate in a program evaluated by a name they can trust," says Michael Luzier, president of the NAHB Research Center. "In such a competitive current labor market, nobody has the time or money to pay for a repair visit for a job badly done."

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How to correctly apply polyurethane foam

Benefits of polyurethane foam for acoustic insulation

Like many of the great discoveries of the 20th century , polyurethane foam appeared by chance. In 1937 Dr. Otto Bayer was looking for a new way to synthesize fibers for the textile market after the appearance of nylon.

In addition, with these investigations, we sought to find a new way of producing plastics much easier and with fewer by-products.

Contrary to what was pursued with the investigations, the results did not give the expected result. No fibers were obtained, which was achieved was a foam that thanks to the formation of carbon dioxide as a byproduct formed pores in it.



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Polyurethane foam The years after the discovery of polyurethane foam, were dedicated to find applications where you could use this new material. Among which stood out on the one hand the thermal and acoustic insulation , boat and aircraft construction, prosthesis or shoe soles.

It was not until the mid-1950s that the manufacturing process of these foams became industrialized and commercialization began. For the use of polyurethane foam as a thermal and acoustic insulator we will have to wait until the 60s when its characteristics were put in the foreground as an excellent thermal insulating material.

In 1967, with the manufacture of blocks of rigid foam there is a great impulse for the widespread use of thermal insulation panels for polyurethane foam buildings .

The use of this material as a thermal insulator has proven to be very effective due to its excellent behavior, preventing heat losses in the home, with consequent savings in the energy bill.

The polyurethane foam can be used in different ways, either directly projecting it in the area we want to isolate , or using formed sheets or prefabricated panels.

Depending on the way we use this insulating material your application will need some requirements or others. In the case that we decide to install polyurethane panels , the only requirement will be the previous cleaning of the surface that we want to insulate to ensure the correct thermal and acoustic insulation .

If on the contrary we choose to project the polyurethane foam on the area that we want to thermally or acoustically insulate, in addition to cleaning it, we should not completely coat it with this insulating material, since once projected, its size increases from 2 to 5 times after a brief time frame. Once dry, the remaining that protrudes from the area that needs thermal insulation , can be easily cut with a cutter or other cutting instrument.

Advantages of insulating with polyurethane foam

This thermal and acoustic insulation material has a series of properties that make it a good option for the general thermal insulation of the house of which we highlight the following;

•     It has very good thermal behavior supporting a wide variation of temperatures. Maximum insulation capacity with very little thickness. An insulation of 1 or 2 cm is comparable to a stone wall half a meter thick.
•     Being a foam, it is a lightweight material , has little weight, and is especially recommended for use as thermal insulation on roofs.
•     Water-resistant and fire-retardant material , prevents the passage of moisture inside the house so it can be used in the exterior areas of the house and protects from fire.
•     If used in the form of panels, they are easily handled and cut and perforated easily.
•     They can be painted and glued without the need to treat the insulating material
•     Easy installation The polyurethane foam is installed simply and quickly.
•     It can be used in areas of difficult geometry . The polyurethane foam is attached to all types of surfaces.
•     Extends the life of the building and achieves energy savings. The installation of any thermal insulation makes homes gain energy efficiency and this leads to a great saving of energy and money seeing the building's energy bill reduced.

The thermal insulation by means of some of the insulating materials that the market offers is a solution to recover the comfort inside the house. From Ecogreen we can offer you a wide catalog of insulating systems and materials as well as the necessary advice to know which is the right one to install in your home.

In addition to gaining comfort inside the building , you will see how your energy bill is reduced and the money in your pocket increases. Do not wait for you to tell, call us !.

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Advantages of insulation with polyurethane foam

All the advantages of insulation with polyurethane foam
Insulation without joints or fissures
The polyurethane applied by projection creates a continuous layer without joints, eliminating thermal bridges.



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Insulation for difficult geometries and places
The in situ creation of the insulation by means of the projection of a mixture of liquids eliminates the need to cut, fix pieces ...

Excellent adhesion to the substrate throughout its useful life
In addition to not requiring the use of glues, adhesives or other fixing systems for installation, this insulation maintains its high adhesion and insulation performance throughout the life of the building.

Prolong the life of a building
The polyurethane foam with its rigid structure of closed cells, improves the construction and durability of the building.

Professional installation, fast and safe
The projection is carried out by professionals and in less time than the installation of other insulating materials, being the only one with the possibility of certifying its installation.

Maximum impermeability in facades
The foam is a very high resistance barrier to water filtration offering maximum waterproofing on facades (grade 5).

Perfect behavior against cracking
The polyurethane foam has a slight flexibility that allows a perfect adaptation to the possible movements of the structure and, thus, a very good behavior against cracking.

Fire behavior
With only 5mm of our exclusive mortar the fire reaction classification B-s2, d0 is achieved.

Suitability for Guaranteed Use
The polyurethane foam used is in possession of a Document of Adaptation to Use granted by the ITeC, which offers a maximum guarantee of compliance with the thermal insulation and waterproofing performance for building facade solutions.

High dimensional stability
The insulation system with polyurethane foam used is placed in level 4 classification of dimensional stability, which is the highest possible, being especially suitable for thermal insulation of floors, terraces or roofs.

Constant thickness throughout its useful life
The foam used has an excellent behavior to compression fluency, deformation that the product will suffer in the long term when subjected to permanent loads.

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Advantages of polyurethane as thermal insulation (with practical example)

The high insulating capacity of polyurethane is not achieved in the construction with any other commonly used insulating materials. This special feature is due to the structure of small cells that form the foam, and the composition of the insulating gas occluded inside those cells.

Thanks to its low thermal conductivity , polyurethane reaches the thermal insulation values ​​required in the CTE with the minimum thickness, which allows to preserve a larger living area, with the consequent economic benefit.

On the other hand, if polyurethane thicknesses similar to other materials are incorporated, greater thermal resistance and greater energy savings are achieved , which also results in an economic benefit for the user.



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The thermal conductivity of the polyurethane depends on several factors, such as the percentage of closed cell , the size of the cell, the foam gas used, or the insulation thickness installed. In addition, the thermal resistance depends on the conductivity and thickness of the installed insulation. For this reason, the manufacturers of polyurethane systems declare the thermal resistance in the CE Marking and the Declaration of Performance through a performance table.

The thermal conductivity and the thermal resistance of the projected and injected polyurethane are declared by a performance table according to the thickness.

The best value of thermal conductivity, together with the tightness, absence of joints or holes, adaptability to any substrate and adhesion make the polyurethane projected the most effective insulation.

Robust thermal conductivity value

The thermal conductivity value of polyurethane foam is very robust against the effects of aging , such as the presence of moisture, dirt, lack of air tightness, the presence of holes in the insulation, deterioration of the same or the lack of physical integrity.

Humidity

The thermal conductivity of a wet insulating product is greater than that of a dry thermal insulator, in the same way that a wet sweater holds less than a dry sweater. It will be necessary to prevent an insulation from absorbing water, since a thermal insulation with a water content of 1% by volume can increase its thermal conductivity between 75% and 105% (Building Regulations for the Conservation of Fuel and Power. Assessment, BRUFMA). The projected closed-cell polyurethane has water impermeability .
Decrease in insulating capacity due to water.


Dirt

The thermal conductivity will be seriously damaged by the presence of dirt inside the insulation, so it will be preferable that the product used maintain its thermal properties regardless of the dirt present in the environment. The closed cell structure of the projected polyurethane prevents the entry of particles inside it.

• Decreased insulating capacity due to dirt
• Lack of air tightness

If the main sheet is made of a brick factory, or a lightweight block, it is possible that there is air infiltration from the outside to the interior of the chamber. The polyurethane will prevent these infiltrations of cold air . The movements of air through a non-watertight insulation or with joints can reduce the insulation values ​​up to 40% ("Experimental and theoretical investigation of the influence of natural convection in walls with slab type insulation" and "Sensitivity of insulation wall and ceiling cavities to workmanship ").
Decreased insulating capacity due to air infiltration.


Presence of gaps in the insulation

The joints, the upper and lower termination, the blind holes, etc., could produce convection currents that would communicate both sides of the insulation and reduce their effectiveness. It will be necessary to ensure the total absence of gaps in the insulation, since the presence of gaps in 6% of the insulated surface would cause an increase in thermal conductivity of 30% (Retrofitting: Wall insulation and roof spraying, BRUFMA conference 2004). The projected or injected polyurethane, being a product adhered, in continuous and without joints, will not be harmed by this effect.

• Decreased insulating capacity due to joints

Deterioration of the insulation

In all the insulating products, the installation is the most important aspect so that the final product reaches all the declared thermal performances. A bad installation could cause take-offs and removals that will seriously damage the effectiveness of insulation.

• Decrease in insulating capacity due to deterioration.

Physical integrity

The passage of time can lead to settlements and compaction in inconsistent products. The projected or injected polyurethane, being a rigid material , can not suffer these effects.

• Decrease in insulating capacity due to settlement
• All these effects can occur in combination

Great decrease in insulating capacity due to the combination of different effects.

Being the polyurethane projected or injected a continuous product without joints, there is total absence of thermal bridges caused by joints, overlaps, or encounters with the floors, and it is very easy to treat thermal bridges integrated in the facade as pillars, boxes of blind and contour of holes.

Thermal resistance

From the declared conductivity value, and knowing the applied thickness, the thermal resistance can be known by applying the following relationship.

• R = e /?

Where:

•     R is the thermal resistance, in m² · K / W
•     e is the thickness, in m
•     ? is the thermal conductivity, in W / m · K

Thermal Resistance value, in m² · K / W, depending on the conductivity and thickness. For intermediate values, it can be interpolated.

• polyurethane values
• Equivalent thickness

The equivalent thickness of an insulating material is that which equals the thermal resistance of another insulating material of known thickness. That is, it is that thickness that makes both materials have the same insulating capacity.

To calculate the equivalent thickness it is necessary to equalize the thermal resistances of both products.

• R = e1 /? 1 = e2 /? 2

Where:

•     R is the thermal resistance, in m² · K / W
•     e1 is the thickness of material 1, in mm
•     ? 1 is the thermal conductivity of material 1, in W / m · K
•     e2 is the thickness of material 2, in mm
•     ? 2 is the thermal conductivity of material 2, in W / m · K

Example of thermal behavior of polyurethane as insulating material

We want to establish the equivalence between a given product of thermal conductivity 0.036 W / m · K and thickness 80 mm and the projected polyurethane of conductivity 0.028 W / m · K.
Starting data:

•     e1 Thickness of the given product: 80 mm
•     ? 1 Thermal conductivity of the given product: 0.036 W / m · K
•     ePU Projected polyurethane thickness
•     ? PU Thermal conductivity of the projected polyurethane: 0.028 W / m · K

polyurethane example

That is to say: replacing 80 mm of the given product with 60 mm of projected polyurethane, we will be able to equalize the thermal resistance.

    Conclusions of the use of polyurethane as thermal insulation material

•         Polyurethane is an insulating material with a very low thermal conductivity value.
•         The insulation capacity of polyurethane is very robust against the effects of aging to which thermal insulation is usually exposed.
•         With the projected polyurethane, the treatment of thermal bridges is very easy.
•         The projected polyurethane reaches the maximum level of insulation with the minimum thickness.