When building a modern house, you need to pay attention to the sequence of the device of steam and waterproofing of the roof, which in turn saves energy and protects the truss system with insulation from moisture, throughout the entire life of the house. The main waterproofing materials for roofs, tested in practice, are under-roofing films: Fibrotek RS-2, Yutavek 115, Tyvek Soft and Delta. Such roofing films can and should be given preference. Based on experience, I would like to offer only the best waterproofing, vapor barrier and windproof membranes.

Many builders do not even know that when installing or installing a facade structure, for example, siding, two films are always used. It is a roof waterproofing that removes excess moisture from the ventilation space and a vapor barrier that reflects heat from the inside of your home. Steam and waterproofing for the roof is a standard that is fixed all over the world and is also used in the climatic zones of Russia. Complex roof structures, for example a soft roof, always provide for the presence of a competent roofing cake with a lower and upper membrane. Roofing films have different prices, all depending on the area of ​​application. Cold roofing implies inexpensive films, but if you insulate the roof, then be sure to use a vapor barrier from the inside of the room, preferably with an aluminum layer, and use diffusion membranes on top of the rafter system as waterproofing. In this way, you will create a long-term, organized microclimate in the under-roof space of your building.

Functions of hydro and vapor barrier:

The main purpose of waterproofing is to allow air to pass (breathe) and not to allow moisture to pass through. As a rule, it is installed under the roof for ventilation of the under-roof cake. Vapor barrier - used to keep warm air in the house (reflects heat).

When using the correct installation of films, you keep the insulation dry, and the rafter system lasts much longer. Often, waterproofing for the roof saves from heavy slanting rain, snow, drops of water still fall under the roof and simply flow into the gutter along the membrane.

The most reliable option is when the insulation is laid with a thickness of 100 mm, 150 mm, thereby leaving a ventilation gap of 50 mm between the insulation and the waterproofing. In this case, we recommend installing a waterproofing diffusion membrane with microperforation from the premium series, such as: Fibrotek RS2 PROF, TYVEK Soft, or UTAVEK 115, which can also be installed with insulation of 200 mm, without a ventilation gap. A film of this class perfectly ventilates the roofing cake and provides good air exchange. As for the insulation of the facade, for example siding under a log, be sure to create a ventilation gap! You cannot fix the siding directly onto the film. Firstly, you will make a hole in it, and secondly, there will be no necessary ventilation. If you do not insulate the roof and walls, then you can install an inexpensive economy class reinforced waterproofing film such as: YUTAFOL D 96 Silver, Yutafol D110.

Roofing concept burst into tears:

Do not install cheap film together with insulation, in order to avoid condensation, stains on the ceiling and expensive repairs !!! Today there is a very wide variety of hydro-vapor barrier and everyone wants to build their house from QUALITY materials. Products costing less than one and a half thousand rubles will quickly fail - these materials do not fulfill their functions !!! For this money, it is possible to get only beautiful packaging. Purchase roofing films only from specialized stores.

Bestsellers

	Yutafol D 96 Silver is a waterproofing and is a two-layer laminated perforated polypropylene film, has dimensions of 1.5 x 50 m and a density of 96 g / m 2. Manufacturer: Czech Republic roll 75m2	Rub 1,395 / pc
	Yutafol N 110 Standard This is a vapor barrier, which consists of three layers: a very strong perforated mesh, which is laminated on both sides with a vapor-insulating polyethylene film, has dimensions of 1.5 x 50 m and a density of 110 g / m 2. Manufacturer: Czech Republic roll 75m2	RUB2,300 / pc
	Yutafol D 110 Standard it is a waterproofing film that consists of three layers: a reinforced mesh made of polyethylene strips and perforated polyethylene on both sides. The film has dimensions of 1.5 x 50 m and a density of 110 g / m 2. Manufacturer: Czech Republic roll 75m2	RUB2,300 / pc
	Fibrotek RS-2 Prof superdiffusion four-layer polypropylene membrane. Provides waterproofing and wind protection for insulation in roofing and wall structures. The high vapor permeability of the material does not impede the removal of water vapor, preventing the formation of condensation. Film 50 x 1.5 m, density 105 g / m2. Manufacturer: Russia roll 75m2.	RUB 3,600 / pc SALE
	Yutavek 115 is a three-layer polypropylene waterproofing, super-diffusion roof membrane Yutavek 115 is used to protect roofs and walls. It has excellent strength, which provides a high-quality waterproofing ability. Yutavek 115 has dimensions of 1.5 x 50 m and a density of 115 g / m 2. Manufacturer: Czech Republic roll 75m2	RUB 4,450 / pcs
	Tyvek Soft is a single layer, high strength nonwoven polyethylene. Tyvek Soft waterproofing is resistant to weathering and has a high vapor permeability. Has a wide temperature range of application and high tear resistance. Film 50 x 1.5 m and density 58 g / m 2. Manufacturer: Luxenburg roll 75m2	RUB 5,100 / pcs
	Yutafol N AL170 four-layer reinforced polyethylene vapor barrier film for roofs and walls with a reflective aluminum layer. Its use prevents steam from penetrating into the wall structure, and the reflectivity (more than 95%) of the aluminum layer ensures a decrease in heat loss. Size 50 x 1.5 m and density 170 g / m 2. Manufacturer: Czech Republic roll 75m2	Rub 5,450 / pc
	Tyvek Solid is a single layer waterproofing non-woven polyethylene. Highly resistant to weathering and, if necessary, is laid directly on the insulation. Has a wide range of temperatures for use. Unlike Soft, Solid film has increased strength characteristics. The film is 50 x 1.5 m and the density is 82 g / m2. Manufacturer: Luxenburg roll 75m2	Rub 6,550 / pc
	Tyvek DuPont Airguard SD5 is a two-layer, high tenacity nonwoven polypropylene film. It is used as a vapor barrier of the highest category, which evenly removes excess moisture from the room without the risk of condensation. Airguard fibers control comfortable room temperature and humidity. The film is 50 x 1.5 m and the density is 108 g / m2. Manufacturer: Luxenburg roll 75m2	Rub 8,400 / pc
	Delta-vent n is a three-layer polypropylene waterproofing, super-diffusion membrane, which is used for ventilated roofs and facades. Copes with excess moisture and condensation. Delta vent N premium film.	Rub 5,270 / pc
	Adhesive tape SP-1 is a special double-sided adhesive tape for hydro and vapor barrier. It is used for hermetic joining of sheets of hydro and vapor barrier films, as well as for the organization of hermetic adjoining to wooden and metal roof structures. Roll of 25 meters. Width 20mm.	RUB 500 / pc
	Delta-multi-band m60 is a very strong single-sided tape for gluing the joints of waterproofing and vapor barrier overlaps. It has an excellent adhesive base and is often used in the repair of roofing films. Roll of 25 meters. Width 60mm.	RUB 1,100 / pc

Video instruction for the installation of TYVEK roofing foil

What is the difference between vapor barrier and waterproofing? This question comes up when laying insulation in the attic. Today we will analyze what is the difference between these materials, so that you carry out all the roofing work correctly.

The modern market offers a huge variety of film coatings. It is not surprising that people who are inexperienced in this matter often do not know what to choose, or they confuse the materials. As a result, roof leakage may occur, construction and finishing materials will be damaged. To avoid this, one should accurately understand the purpose of waterproofing and vapor barrier, be able to distinguish them and make an accurate choice before carrying out roofing work. If the roof is already leaking, wait for a sunny day, dismantle the entire inner part of the roof, remove the wet insulation that has lost its properties, and carry out new work on using steam and waterproofing.

Roof insulation

And in order to choose what you need, you need to understand exactly what the difference is between materials such as vapor barrier and waterproofing. Let's start with the roof waterproofing. The task of this material is not to let water from the street inside the space under the roof. Despite the fact that any roofing material is designed to protect the house from direct rainfall, they can still seep inside, which threatens to get the laid insulation wet. The use of waterproofing will protect the insulation from getting wet from the street. What are the features of using a vapor barrier for a roof? This material is used from the inside of the roof sill.

The main function of any vapor barrier material is to protect the insulation from vapors coming from the interior of the house. Whatever high-quality ventilation system you equip, steam will still be present in the rooms: people breathe, food is prepared, humidifiers and irons are used. Thus, warm steam will penetrate into the insulation. That is why it is necessary to use protection in front of the layer of heat-insulating material, which is the vapor barrier. The main difference is that waterproofing materials do not allow moisture to pass to the insulation, and vapor barrier materials do not allow water vapor.

Such products have a 100% waterproof surface on both sides, which does not allow steam to pass through and does not release it. The most affordable option is a simple plastic wrap, which is usually used by summer residents in the garden. True, it can be used for the roof only in the most extreme case, since under the roof there is always a high temperature, under the influence of which the multilayer film can lose its properties. The best option is to use a multilayer film with a reinforcing polymer frame.

Vapor barrier films

The presence of a frame will not allow the vapor barrier material to stretch, and many layers of film will ensure the longest possible service life. But the best and at the same time the most expensive type of material for can be called foil film. It is laid with a foil part inside the roof, which will reflect infrared radiation. Such a film will protect the insulation from steam penetration and increase the level of warm air retention, and you will save on heating in winter.

For waterproofing, vapor barrier films are not suitable. The reason is simple - they are waterproof. But waterproofing materials, in addition to protecting against moisture, perform another function - they remove vapors that have got there from the insulation (which can still leak out, even if there is a vapor barrier). If we neglect the use of special waterproofing membranes, the insulation will quickly begin to deteriorate, no matter how high quality it is.

Roof waterproofing

The main feature of such membranes is their porous structure, thanks to which steam can seep through the pores under the roof and go out without lingering in the insulation. Let's explore what types of membrane films are. Diffusion and superdiffusion films can be found commercially. The pores of such materials have the smallest funnels, due to their structure, vapors escape through the funnel, and moisture remains outside. When using membrane films, it is very important to lay them on the right side so that they fulfill their function of protecting against moisture and removing steam: with a wide part of the pores, the material is laid in the direction of the insulation, and with a narrow part - to the roof.

Diffusion and superdiffusion films also differ in the number of pores. So, for example, if you decide to use diffusion membranes, they should be laid so that the product and the insulation do not touch. In the opposite case, the funnels of the material will be clogged, and it will cease to perform its protective functions. Therefore, when laying diffusion materials, the layer should be provided with ventilation gaps on both sides. But laying a superdiffusion film requires arranging a ventilation gap only between the membrane and roofing materials, the product is not afraid of contact with the insulation, due to the higher level of steam output.

True, membrane waterproofing films are far from suitable for every type of roof - they can only be used for those structures that are not afraid of condensation on the back side. For example, for a metal tile, an anti-condensation film should be taken, which does not release steam to the outside, but retains it on its back.

Now you know what is the main difference between vapor barrier and waterproofing. It is worth mentioning about the materials for wind protection, which will help to eliminate another problem of roof insulation - a strong wind blowing out warm vapors. That is why it is advisable to use windproof films or plates, the main purpose of which is to protect against strong side winds. At the same time, the properties of the windproof material are such that it allows moisture and steam to pass outward, so that you can not be afraid that the insulation will get wet.

House wind protection

The most famous slabs Izoplat, they are very durable, environmentally friendly, reliable. In addition to protection from wind, such material saves walls from freezing, which can also be attributed to the advantages of using wind protection in the house. At the same time, remember that you need to choose what to install - wind protection or vapor barrier, since the combination of these products will lead to the fact that the roof will stop "breathing", and condensate will begin to settle on the insulation.

Naturally, this will negatively affect its characteristics. Therefore, on the side, for example, from where usually strong winds blow, you can install a windscreen, and finish all other parts with a vapor barrier.

The search for an answer to the question of how vapor barrier differs from waterproofing is often carried out when choosing the type of protection for a structure. Different materials help solve different problems: trap moisture, warm steam, thereby preserving the structure of the heat-insulating "cake". The market offers a wide range of protective coatings. They are characterized by different properties.

For this reason, the operating conditions should be taken into account before purchasing.

Both materials are waterproof... For this reason, with their help, the heat-insulating "pie" is closed from all sides, since. when in contact with liquids, the insulation loses its properties, it serves less... Means, the main task of the considered coatings is to prevent moisture penetration in the structure of mineral wool, foam or other materials that help keep the room warm.

The main function of waterproofing films is to protect against precipitation, which is implemented when roofing roofs. In this case, they are laid on top of the thermal insulation. It is advisable to use windproof films. It is a multi-layer material with a porous structure on one side and a smooth surface on the other. If the moisture protection is installed indoors, its main task is to reduce the risk of contact of the insulation with water, which can get on the film, for example, in the pool, in the kitchen, in the bathroom.

Vapor barrier implements other functions. The main task that the materials of this group help to solve is creating an insurmountable barrier to air rising when heated... If the vapor barrier was not used, after a short period of use, the insulation will accumulate moisture, which will contribute to an increase in thermal conductivity and a deterioration in its qualities.

However, this type of coverage will delay not only warm steam but also liquids, therefore, it received another name - vapor barrier. This is the difference between such materials: the action of each of them is aimed at retaining moisture, characterized by a different structure (liquid or water).

What is the difference between waterproofing and vapor barrier?

It is noted that such coatings solve several problems. However, the difference between waterproofing and vapor barrier lies primarily in the structure. Films differ in structure, are produced using different technologies, which determined the purpose of each of them, as well as the properties and level of efficiency in the implementation of functions.

Externally, waterproofing and vapor barrier are similar. In fact, it is difficult to see small pores on the film surface. Considering that such coatings differ in their small thickness, it is often not possible to study the structure even on closer examination. For this reason, steam and waterproofing at first glance look the same. However, this is not the case, and during the fastening process, it is not always possible to notice the difference. Installation errors make themselves felt some time after the start of operation.

The structure of the waterproofing film

Such materials are divided into 2 groups:

• single-layer, with a smooth surface;
• multilayer: on one side there is a porous layer, on the other - a smooth surface.

The first of the options does not allow air to pass through. Accordingly, steam cannot pass through such insulation either. The film is made of polyethylene, it allows you to create a completely sealed coating. In order for warm air to be able to freely leave the space under the roof slope, diffuse membranes are used.

On the one hand, they contain pores that have broadening. This structure allows warm air to pass through the insulation to the outside... However, precipitation from the street will no longer be able to penetrate under the roof. This is due to the location of the pores: their narrow part is located on the side opposite to the room. Water molecules will not pass through such "windows". Means, the direction of movement of moisture in diffuse membranes is only one - from the inside of the object to the outside.

There is also super diffusion waterproofing. Its structure is the same as that of the considered coating. However, there are more pores in the membrane layer. This ensures a higher level of moisture removal efficiency.

If you are interested in the question of how waterproofing differs from vapor barrier, a parallel is drawn between film and membrane coatings. For example, the membranes are mostly vapor-permeable, but moisture is not retained in the construction of the heat-insulating "pie", but is removed outside due to the ventilation gap, which is specially left at the roof of the roofs.

Membrane waterproofing often contains a polypropylene reinforcement layer. If you use plain plastic wrap, over time, it deforms under the influence of high temperatures and tensile loads... This does not happen with membrane materials. As a result, the service life of this type of waterproofing increases significantly.

The need for waterproofing

Most of the thermal insulation coatings offered on the market are characterized by full or partial hygroscopicity. This means that it is undesirable to use them on your own. Direct contact with moisture in any form, be it steam or liquid, will provoke a change in the structure of the insulation. If mineral, basalt or glass wool is used, fiber compaction may occur. For this reason, the heat-insulating layer retains heat worse.

Some of the solid insulation materials, with prolonged contact with water, also tend to absorb liquid, although the value of such a parameter as water absorption varies within 1-3% of the total volume of the coating. Respectively, the vast majority of thermal insulation materials require protection in the form of waterproofing... Films do not allow moisture to pass through to the insulation.

If external insulation is installed, it is required to protect the insulation from the waterproofing in conditions when the material is constantly exposed to precipitation (snow, rain). In this case, the thermal insulation must correspond to the operating conditions. So, it is not recommended to lay a simple film when installing the roof... Waterproofing is also important when arranging foundations. In this case, the material protects the base of the object from the influence of moisture contained in the soil.

If you neglect this recommendation, the foundation will not last long. The fact is that concrete in the process of hardening has a tendency to absorb moisture. When the solution hardens and dries completely, its quality will be low. As a result, the base soon deforms under the influence of external compressive and tensile loads.

When the option of installing waterproofing indoors is considered, the risk of water getting into the insulation is taken into account. The likelihood of this increases significantly in rooms such as a bathroom, kitchen. Here, waterproofing protects the walls and floor from water droplets. The reasons explaining this need are the same - it is required to keep the insulation intact for as long as possible.

Indoors, waterproofing helps to preserve other properties of thermal insulation. So, an effective insulation will not trap sounds if it absorbs moisture... In addition, the insulation will deform, which will degrade the appearance of the finish covering the insulation pie. Waterproofing will protect you from these troubles: you cannot do without it if the installation of hygroscopic insulation is planned.

Properties and types of vapor-permeable membranes

The main characteristics of such coatings:

• resistance to ultraviolet radiation;
• preservation of properties under conditions of constant temperature drops;
• low vapor permeability limit;
• strength.

The main types of vapor barrier: porous, perforated (diffuse). The first option is characterized by a fibrous structure, resembles a filter in principle of action, but differs in a small pore size. According to the level of complexity, coatings are distinguished: single-layer, multi-layer, reinforced with a foil layer.

Differences in the installation of hydro and vapor barrier

Given the difference in the structure and properties of these materials, they should be fixed in different ways. To avoid mistakes, it is recommended to watch the video: insulation, waterproofing, vapor barrier - these are 3 layers of a properly equipped thermal insulation "pie". All mounting options should be considered:

1. Roof. First of all, moisture protection is attached to the rafters. The waterproofing strips are overlapped. This increases the reliability of the coating. In addition, the waterproofing is fixed with construction tape. The vapor barrier is installed last. The principle of its fastening is similar to waterproofing: the strips are laid with an overlap, fixed with tape.
2. External insulation. The waterproofing is installed from the street side after the thermal insulation has been installed. In this case, the vapor barrier is not always laid.
3. Internal insulation. Waterproofing is placed on thermal insulation in rooms such as bathrooms, kitchens. For example, if a heater is installed on a concrete floor, first the moisture protection is attached to the ceiling, then the thermal insulation is fixed, and from the side of the room it is closed with a vapor barrier.

When installing the foundation, it is not necessary to use both materials. Enough moisture protection. It must be remembered that the heat-insulating "pie" will suffer first of all if the vapor- or waterproofing membrane is laid on the wrong side. In rooms where the roof or ceiling is protected by a vapor barrier, it is recommended to equip a ventilation system, since a significant part of the steam will remain in the room in the form of moisture.

The nuances of laying roofing films

A ventilation gap is left between the coating and the thermal insulation. This eliminates the likelihood of retaining moisture that is removed from the room. This rule is mandatory if a diffuse membrane is installed. The superdiffuse analog does not require such a recommendation due to the large number of pores in the structure. The coating is used to protect the roofing insulation from precipitation and steam.

Are you building a new house, reconstructing the roof, you decided to use the area in a cold attic as efficiently as possible, and you were faced with the question of how to properly insulate and insulate the attic? In this article, we will tell you how to solve these issues with the involvement of professionals and get a high-quality result.

Customer service office "Chekhov". Correctly performed insulation and waterproofing of the attic. The insulation, the supporting twine, was neatly cut and mounted, the vapor barrier was overlapped and glued. You can see examples in all our offices on the models specially designed for the demonstration of the insulating cake.

We will not talk about construction technologies, characteristics of materials and give advice on installation. We will tell you about a solution that does not require immersion in all the nuances - insulation and insulation of the attic on a turnkey basis from UNIKMA. All you need to do is go to the section and contact our employee who will help with choosing a builder, selecting and calculating materials, checking the quality of work, answering your questions and, if necessary, connecting our experts himself. All you have to do is set a task. Try it!

Our solution involves the use of a reliable and well-proven technology of insulation and insulation using traditional materials: insulation based on stone wool, vapor barrier films, waterproofing membranes, special tapes, adhesives, pastes and sealing tapes.

Do not wonder! Insulation of the attic requires the correct arrangement of two more insulating layers: vapor and waterproofing. Each of the layers has its own rules and installation features. And that's not all: when insulating the attic, you need to take care of the ventilation of the under-roof space.

High-quality roof insulation requires the correct arrangement of not only three insulating layers - steam and waterproofing and insulation, each of which has its own rules and installation features, but it is also important to take care of the ventilation of the under-roof space.

We will tell you more about what is the basis and how the solution "turnkey attic insulation" from UNIKMA works.

A few words about the causes of problems in the insulation and insulation of roofs and attics.

Our clients often see the attic insulation process as consisting of three stages: acquaintance with technologies, searching for materials and choosing a builder. Dealing with each stage and correctly collecting them at one point at one time, agreeing with each other and solving all the issues that arise - all this becomes a headache for the customer.

Unfortunately, many manufacturers of insulation materials support this view, offering fragmentary installation instructions and recommendations. Forums and social networks are full of "experience" and "expert advice." All this lays the foundation for mistakes, most of which in a few years will require reworking the roof, up to replacing the rafters and the main roofing material.

Is rework always required? Not always. In some cases, you can live with installation errors, paying increased bills for heating your home for years and putting up with dampness and cold. But why plan such a result and hope that you are lucky?

An example from a thermal imaging survey of a house. As you can see, when the outside temperature is -12 degrees, the upper part of the pediment has a positive temperature. This indicates errors in the insulation of the wall. The owner of the house pays for heating the street.

Why is this happening and what does UNIKMA offer? The main reason for errors is an underestimation of the complexity of the system of insulating layers of pitched roofs and under-roof ventilation. The physics of the processes taking place is not difficult. Difficulty in the wide variety of conditions in which this system operates. For example, a sharp thaw after long frosts, daily temperature fluctuations near zero, prolonged rains and dampness in summer. Add to this the features of the object and get a wide variety of initial data that the builder needs to take into account on your roof.

For many years we have been observing roofs made of different materials, simple and complex, made in different ways, highlighting common signs and patterns, drawing conclusions and preparing recommendations. We acquaint builders with our recommendations at seminars and round tables, at certifications and Roofers' Tournaments, receive feedback and take it into account in our recommendations.

We are sure that it is almost impossible to read an article or instruction on the Internet and make high-quality insulation of the attic the first time. “Almost” refers to an exception that includes only the simplest gable roofs. Unfortunately, our experience says that even such roofs are insulated with a set of gross mistakes.

Do you want to see the correct insulation of the attic and find out what is needed for this? Start by evaluating the problem. To do this, we suggest looking at ours. You will see and understand how seriously you need to take your task - to insulate the roof. If our standard seems difficult, don't worry. Sign up and come to our offices, where visual layouts have been made for you. We have specially trained employees who will tell you about how the roof insulation and ventilation system works and answer your questions. It is important that you correctly assess the volume and level of complexity of the task from the very beginning and correctly approach the choice of the builder. There is no builder and do not know where to look for him, how to check? Come, call - we will help!

Installation of a vapor barrier at the Nizhny Novgorod session of the Roofers' Tournament 2018. Pay attention to how the abutment to the walls is made and how the column passing through the insulation layers is sealed. Installation of steam, heat and waterproofing is included in the compulsory program of any nomination at the Roofers' Tournament, which UNIKMA held in 2017 and 2018, and this is no coincidence: the Tournament is an effective form of training for roofers.

The most common mistakes in insulation and roof insulation and their price.

The main external signs of problems with insulation, insulation and ventilation of the roof:
• Freezing of the roof;
• Dampness and condensate leaks into the room;
• Blocks of ice freezing on the roof;
• Unevenly melting snow on the roof (the contours of the walls are visible, spots of intense snow melting);
• Drafts.

The consequences of an incorrectly made cornice assembly, which became visible during the reconstruction of the roof. A good waterproofing membrane is brought out to the cornice without a condensate drip and is not brought to the counter-lattice bar. Over time, the waterproofing sagged and water began to enter the wooden structures. You see the result.

Inside the roofing cake, water-soaked insulation, mold and rotted supporting structures are often added to these signs.

The photographs taken from the visits of the UNIKMA specialists in 2018 show the most common mistakes, as a result of which mold, fungus, condensation, ice appears, or at least the house simply freezes over in winter due to poor-quality insulation. To eliminate such errors, it is required to open the roof, dismantle all materials and buy new ones, otherwise there is no way, because the damaged films and insulation cannot be reused.

Think about it! Underestimation of possible errors in the insulation, insulation of the attic and ventilation of the under-roof space may entail the need for a complete reconstruction of the roof, and this is a repeated purchase of materials, payment for dismantling and erection of a new roof, plus the restoration of interior decoration in the attic.

In order to help builders and private customers, we posted an article on the site with a seemingly strange title: "Instructions for reading instructions." It contains the main points that you need to pay attention to when building a roof and accepting work. This article was written over 10 years ago for internal use. Last year we made the decision to place it in the public domain, as we see a huge number of errors and cannot remain indifferent to the problems that we see on the surveyed roofs.

Here are the main mistakes:
• Improper use of materials;
• Loose adhesion of the insulation to the supporting structures, gaps between the sheets, no overlap;
• Grooves when installing waterproofing over dormers and pipes;
• Non-glued steam and waterproofing;
• Errors in the insulation of the Mauerlat and pediment;
• Adjoining hydro and vapor barrier to walls, pipes;
• Slots in double rafters, non-insulated metal in supporting structures;
• Installation of roof windows, especially in the case of installation after installation of the roof;
• Ventilation of the under-roof space is absent or improperly organized.

We have already said what such errors lead to. Agree, it looks difficult, but there is a solution. Before talking about it, let's add a few words about the experience that roofing builders have.

Builder experience is not always a good argument.

Unfortunately, even many builders have a poor idea of ​​how the system of under-roof layers of a pitched roof (steam, heat and waterproofing) and ventilation of the under-roof space works. In doing so, they are confident in their own experience and refer to it. If you are faced with such a situation, you should know that this is a very bad argument! When a reasoned explanation is replaced by a reference to a positive experience, be on the alert. You should know that not all mistakes in roof insulation are visible at first glance, especially to a non-professional.

The training that builders receive from most of the manufacturers of materials practically does not change the overall picture, since they teach how to use the manufacturer's set of materials and do not take into account other roofing layers, the work of under-roof ventilation. Working with all insulation layers as part of the roofing system is not taught there.

The standard is the basis of the "turnkey roof insulation and insulation" solution from UNIKMA.

UNIKMA knows how all pitched roof layers work. Knows how to properly organize ventilation in the under-roof space. Knows how to make sure jobs are done correctly.
In our asset:

• twenty years of experience in roof construction and inspection;
• development of our own standards for the construction of pitched roofs;
• extensive experience in training builders and checking the quality of their work.

Our experience and system of work with information allowed us to form, expand and use in the interests of customers a knowledge base on pitched roofs. This knowledge base has become the foundation on the basis of which we can advise our clients, offer materials and components with an understanding of the characteristics and features of their application at a particular facility, select and propose experienced builders, and also provide quality control of work.

Our standards became the core of the knowledge base. The standards are publicly available. Use them and recommend to your builder. We are sure that even professionals will find here a lot of new and useful things.

The standard in action. Certification of foremen and roofers on the basis of the UNIKMA training and certification center.

Why does UNIKMA create such documents and how is it useful for you? The answer is simple: there is no single document on the market that regulates the construction of a pitched roof underlay and under-roof ventilation. Designers, manufacturers, builders, calculators, measurers do not have a single information field and are guided by different documents and instructions. The responsibility to provide a common understanding of the task and features of the customer's object falls on the customer himself. UNIKMA company, having developed and using its own Standard, takes care of communication issues. At the same time, we are ready to explain what and how we will do. This is a very good basis for what we call turnkey roof insulation and insulation.

The standard in action. Photo from the Roofers' Tournament 2018. The task and the method of refereeing are lined up according to the Standard for the installation of pitched roof sub-roofing layers.

How does the Standard for the installation of pitched roof sub-roofing layers and ventilation of the sub-roof space work in practice? The standard contains generalized information from the knowledge base and is the basis on which the training and certification system for builders, roof surveys, technical consultations, selection of builders and quality control of their work, calculations and sets of materials that we offer to our clients are based.

How the solution "heat insulation and insulation of the roof on a turnkey basis" from UNIKMA works.

What is the essence of the offer "turnkey roof insulation and insulation":

1. The standard for roof insulation has been developed and is constantly being updated;
2. On the basis of the Standard, builders are trained and the quality of their work is checked, foremen and roofers are certified;
3. Based on the Standard, measurements, calculations and the formation of a set of materials for insulation of the attic are carried out;
4. Based on the Standard, the results of certification and inspections of facilities, we will form a list of construction organizations and specific foremen, whom we are ready to recommend to our clients;
5. Based on the Standard, we are ready to tell you why we have proposed a particular set of materials for your roof, where and how they should be applied;
6. Based on the Standard, we are ready to conduct an examination of the quality of the work of builders at your facility.

These six points work to reduce your involvement in the technical and organizational issues of construction and to reduce the likelihood of errors in the insulation of your roof.

The question remains: "Where to start and how to go from setting the task to the successful completion of construction?" The answer to this question allows us to call our solution a turnkey solution. We have identified and trained employees who are ready to meet you at the office and organize the entire process of attic insulation. Come!

We recommend making an appointment before going to the office.

Still have questions? Call:
Customer service specialists in the Moscow region

The most important stage in the construction of a house is the waterproofing of the roof, it is at this stage of construction that all work must be thoughtfully and efficiently performed. Since in case of errors, imperfections or poor construction, there will be problems with roof leakage or condensation inside the tinted space.
There are many types of protection of the attic of a building from the penetration of moisture and vapors, but the choice of insulation from the hydraulic environment depends on many factors, such as the structure of the roof: pitched or flat. Each type requires its own moisture insulators, in addition, the methods of their installation differ.
Important! It should be borne in mind that in the event of a violation of the waterproofing coating of the under-roof space, it is possible not only for water to penetrate into living rooms, but also its accumulation in the ceilings and on the attic floor, which leads to deformation and damage to structures.

Varieties of film insulation for the roof, installation features

Waterproofing materials are subdivided according to vapor permeability:
low vapor permeability, currently they are practically not used;
diffusion, the main feature is the ability to pass liquid vapors through itself, which makes it possible for them to remove condensate. When fixing this kind of film, it is necessary to create a small air gap between it and the thermal insulation;
superdiffusion, they are also highly vapor permeable, have a much greater ability to remove vapors to the outside. In addition, this kind of waterproofer has improved waterproof performance. Due to the increased vapor permeability of this sandwich, during its installation, the gap between it and the thermal insulator is not required.
The area of ​​application of membranes is wide, but their main task is to prevent the effects of moisture on the building. It can be a reinforced sandwich made of several layers of PVC, nonwoven fabric and various polymers, or a membrane made of PVC and other polymer compositions, on a reinforcing mesh, for example, of the EPDM type, on a rubber base. This is a composite, the main component of which is polyomers; for strength, the sandwich is reinforced with a polyester mesh.
Interesting! Some membrane structures with non-woven fabric in their structure can absorb large amounts of condensate. For this reason, it is recommended to mount them to cover the inside of the metal tile.
Multifunctional PVC compounds provide a reliable and environmentally friendly cover for the top of the building. The scope of its application is extremely wide, from installing a new one to replacing an old roofing layer. Their service life is 25 years.
It is better to entrust the installation of membrane coatings to specialists, since its installation requires qualifications and special equipment for welding polymers, such as a welding machine.
Fixation of roll or sheet waterproofing is carried out by ballast, mechanical means, or gluing. Hot bitumen mixtures are used for gluing.

What is vapor barrier and what is it for?

When designing, it is worth thinking about the vapor barrier of the attic space, this is necessary so that the liquid comes out without having time to influence and destroy the elements of the structure. Modern roofing systems are protected from moisture ingress from the outside, but absolutely not closed from the inside. To close this gap, vapor barrier agents are used. Their purpose is to cover the elements of beams and rafters from the inside, from moisture and condensation.

Vapor barrier materials

The building materials market today offers a huge assortment of various vapor insulators, it is simply impossible not to find a suitable one. In addition, vapor barrier can be carried out with building materials to cover from the influence of the hydrosphere. In addition, you can mount a conventional polyethylene and polypropylene film or composite membrane. In addition, there are special means, such as isospan, which are less common, but also quite effective.