From building materials, roll roofing- it's practical roofing. Doesn't stand out as decorative appearance, it is widely used to cover the roofs of non-residential, utility buildings.
But low price, simple installation, good insulating qualities have influenced the fact that rolled materials for roofing have become in demand in private construction. Now soft roll roofing is manufactured using new modern materials that have improved its quality, increased strength, durability. Today, rolled roofing materials can be confidently used as an alternative to slate, ceramics, and even metal coatings. Our construction magazine will tell you about prices, equipment, modern views roll roofing.
Soft roll roofing is roofing materials, the constituent layers of which are pressed in the form long canvas, which in ready-made rolled up into rolls. Rolled roof coverings, thanks to this form, are very convenient and practical to transport, store, lay on the roof slope. Such advantages ensured their demand in the industrial and civil construction sectors. Soft roll roof has a device:
Attention! Different types soft roofs for roofs differ in their composition, structure and cost. The most inexpensive and well-known are roofing felt and roofing felt, they have a low cost and are quite practical. The price of modern membrane roll materials for the roof is much higher, but more durable materials, improved installation technology, durability and other characteristics will justify your costs.
Advantages of soft roll roofing
The device of a soft roof is a tight-fitting layers that form an airtight, durable coating, the significant advantage of which is the almost complete absence of seams. A big plus of such a coating is that it can be used for a roof whose slope angle is from 1 degree. The main advantages of a soft roof are:
1. High resistance to moisture. Soft roofing is made using a base made of cardboard or fiberglass impregnated with bitumen-polymer impregnation. It is not affected by moisture and has antiseptic properties.
2. Affordable price. Price roll coatings for a roof an order of magnitude lower than metal tiles, ondulin and others. It is very practical to use for covering non-residential premises or industrial buildings.
3. Resistant to high and low temperatures. Soft coatings perfectly resist temperature changes, do not deform and do not lose their qualities. Used in regions with different climatic conditions.
4. Light weight. Rolled roofing, the layers of which are stacked on top of each other, weighs less than many other roofing materials, so there is almost no load on the rafters and roof frame.
5. Ease of installation and installation. The technology of laying bituminous and polymer materials quite simple and easy to install with my own hands without resorting to the help of specialists.
6. Soundproofing. bituminous roof well absorbs external noise arising from exposure to wind or rain.
Low price and weather resistance are not the main advantages of rolled bitumen roofing. Most useful quality- this is flexibility and the ability to lay material on the roof surface of complex shapes.
Types of roll soft roof
Previously, rolled roofing materials were only roofing felt and roofing material, but today new ones have appeared that have more high performance and qualities. Let's consider everything in order.
29.08.2018
Modern rolled roofing materials are one of the most popular roofing options in the construction of both low-rise private houses, garages, utility buildings, and urban, industrial, commercial buildings, the roof slope of which ranges from 0 (flat roof) to 30%. Combining reliability, durability, ease of operation and affordable prices, roofing from rolled roofing materials is highly appreciated by both professional roofers builders and non-professionals who are independently involved in the installation or repair of the roof own house or garage.
The high demand for reliable and durable, at the same time inexpensive and easy-to-use roofing coverings for various purposes has led to the active development of this area, and the assortment in which rolled roofing materials are presented on the market is quite wide. However, thanks to uniform marking standards, even a non-professional can understand their types and characteristics.
Types of roll roofs
The broadest classification of roll coatings covers all types, united by the form of release (rolls), as well as the purpose (for flat, low-slope roofs):
- bituminous;
- polymer membranes.
The most common and popular in modern construction are bituminous rolled roofing materials with a backing of polyester or fiberglass. They are affordable, do not require special training and sophisticated equipment in operation, and are reliable. durable. Different types of rolled roofing materials for the roof are designed for different layers of the roofing cake, they may differ in thickness, type of base and protective layer. All characteristics are reflected in the marking, which makes it easy to pick them up in accordance with any requests.
Marking and characteristics of rolled roofing materials
Each roll of soft roofing produced and sold in Russia carries a certain marking, which indicates: type of base; view of the coating from above and below, characterizing the scope; weight of 1 sq.m of material (not in all cases) and other features. Marking and characteristics of rolled roofing materials make it easy to choose the coating that is optimal for each specific case. A code of letters and numbers carries all the necessary information.
The first letter indicates the type of base used:
- X - fiberglass, has a rather loose structure, coatings based on it have lower strength characteristics and a minimum price;
- T - frame fiberglass, very dense base, providing high strength of the coating;
- E - polyester fabric or polyester, more resistant to stretching (threads withstand stretching up to 50%), providing elasticity of the coating, high elongation to break, which is especially important when working with new buildings, where deformation and shrinkage of structures is possible;
The second letter of the marking carries information about the coating on top. As a rule, this is:
- "K" - coarse-grained dressing, provides good protection from UV radiation, mechanical influences, can be painted in different colours(also means it is roofing material);
- "P" - a film, prevents sticking of material in a roll. Materials with this marking are used as a lining layer of a roofing carpet or waterproofing.
The third letter of the marking carries information about the coating from below. As a rule, this is the designation of the type of coating that protects the rolls from sticking:
- "P" - film;
- "M" - fine-grained dressing;
- "C" - kaolin suspension.
There is also a number letters, which are much less common, which characterize the specific features of a particular material.
The thickness of rolled roofing materials is indicated extremely rarely. Basically, manufacturers indicate the mass of material per 1 sq.m. canvases. In the marking, it is reflected in the number that is placed after the three-letter code.
Which roofing roll material to choose?
The choice of one or another type of coating depends on many factors - such as the construction budget, the desired service life of the roof (it is clear that the choice of material for roofing a residential building, a garage and a temporary change house will vary greatly), and the question of which roofing roll material to choose for each object decided individually.
The best premium materials such as Filizol provide reliable protection for up to 25-30 years. A more modest service life for the standard class - such as "Filigiz" - however, with a service life of up to 15 years, they are perfect for covering a garage, outbuildings and other facilities, especially if you take into account more than a twofold difference in the cost of a roll. The golden mean can be considered the business class of coatings - "Filikrov" with a service life of up to 20 years and a fairly budgetary cost.
When choosing rolled materials for different layers of the roofing carpet, it is necessary to take into account their compatibility. So in one roof you can combine rolled coatings with different bases, but, for example, a combination of polyester fiber with fiberglass or fiberglass will not allow you to fully use such advantages of polyester as high elongation to break. The ideal option the use of layers with the same base is considered - in this case, the tensile strength that the coating can withstand increases by almost 2 times. In this case, the choice of a base with insufficient tensile strength can lead to cracks and a deterioration in the reliability of the coating with the slightest deformation of the base (shrinkage, cracks in the screed, etc.)
When choosing a coating for a future roof, you should pay attention to the way it is laid. The most common on the market are welded roll materials - their installation requires gas-burner, which melts the lower fusible layer of the web and heats the upper surface of the underlying layer, due to which the bitumen-polymer (or bitumen) layer interpenetrates to achieve a strong connection. It is not recommended to combine bitumen-polymer binders with APP and SBS modifiers - different melting temperatures will not allow them to achieve interpenetration, which is necessary for a reliable connection of the layers, and delamination may occur.
The built-up materials are not suitable for laying on combustible substrates (wooden, OSB and others) due to the use of open flames during installation. In this case, it is better to pay attention to self-adhesive roll coatings - they do not require additional heating, the lower adhesive layer is simply released from the protective film, and natural heat from solar radiation is sufficient for reliable gluing.
Particular attention must be paid to the choice of the top layer - it is he who carries maximum load protection from the effects of negative external factors, such as solar radiation, mechanical stress, more prone to aging. Here you need to use best material with the greatest durability (such as Filizol). It can be combined with budget business or standard classes in the lower layers of the roofing pie.
Laying technology
A roofing device made of rolled materials is a multilayer "pie", the number of components of which varies from 1-2 to pitched roofs with a slope of more than 15º up to 4 (3 lining and 1 roofing) on flat and low-slope roofs with a slope< 15º.
Before the installation of the roof, the base is cleaned and treated with a special mastic, which ensures adhesion of the bottom sheet to the base, after which the layers of the rolled roof are laid, in one direction, with an overlap of at least 100 mm in the side, 150 mm in the end part of the sheets, an overlap on the ridge of at least 300 -400 mm. The marking and calculation of the amount of material upon purchase is done taking into account overlaps. Calculating the amount is easy thanks to standard size canvases in a roll - 1m. wide, 10m long. The direction of laying depends on the angle of inclination of the slopes - up to 15º the material is laid parallel to the ridge, at a larger angle - perpendicularly. Joints are additionally processed with mastic.
If necessary current repair soft roofing, the damage site is thoroughly cleaned of dirt, the coating at the damage site is softened with a building hair dryer, after which a patch is installed on it. When removing blisters, the place of swelling is incised crosswise, the coating is softened with a building hair dryer and cleaned. The place of swelling is filled with molten bitumen, after which a patch is installed, larger than the place of damage. optimal choice for professionals as well as private builders.
A lot depends on what kind of coating is used to protect the roof of a building. First of all, this can include the time of operation of the structure without performing repair work. However, one should not forget about aesthetics and cost, because this is what roll roofing is attractive for.
Scope of roll deposited materials
Roll materials are excellent for creating roof coverings with an angle of inclination from 0 to 30 degrees. It can be either a single-sided surface or a structure with several slopes. flat roofs modern buildings, or sloping roof country house can be built using roll materials.
Today, the demand for such coatings is very high, because they have a significantly longer service life than those materials that were available just a decade ago. The roof could last only five years, and then it required repair. After 10 years, the roofing carpet has already been replaced.
Today, the service life of such materials reaches 25 years.
What is welded roll roofing?
As the name implies, this is a rolled material obtained in two ways. The first is intended for the manufacture of basic coatings and consists in processing the base of cardboard or fiberglass with a binder mixture, which can be tar or bitumen. The second manufacturing method is designed to obtain baseless materials. In this case, are used special methods heat treatment of binder mixtures containing special additives and fillers, after which the resulting mass is rolled into sheets.
All rolled materials can be divided into cover, and those that do not have a layer of refractory bitumen, reinforced with fillers or additives.
Types of basic roll materials
- Ruberoid. Ruberoid, created on a cardboard basis, was used back in Soviet times, but it is still popular today, because it is one of the cheapest coatings. Glassine is a lining material, which is a special roofing paper impregnated with petroleum bitumen. It is manufactured in accordance with GOST 2697-83. The main disadvantage of glassine and roofing felt is their short service life, which more than pays off with a low cost.
- Rubemast. This is a built-up roll roofing, obtained using technologies similar to roofing material. Such material has a special protective film that prevents the layers from sticking together and protects the front side of the rubemast, covered with granite chips, from abrasion. The service life in this case is also small, but installation is much easier than in the previous case.
- Glass roofing material. It is produced using fiberglass or polyester as the base. This material is much more reliable than cardboard impregnated with bitumen. The presence of a solid base made it possible to significantly increase the service life of the material, which can reach 15 years, and the resistance to accidental damage is much higher here.
- Euroruberoid. This type of coating is also built-up, however, it differs in that it can tolerate quite strong temperature changes and severe frosts. The service life of the material is approaching three decades, and the number of layers required to create a reliable roofing carpet is minimal.
- Membrane coating. This material is one of the latest developments. It has high durability and is characterized by quick installation. An alternative is self-adhesive materials, which in warm weather just need to be rolled out over the roof, after removing it from reverse side protective film. The disadvantage of self-adhesive compounds is their cost.
Baseless roofing materials
One of the most attractive features of such coatings is the absence of a rigid structure, due to which they easily perceive deformations of the insulated base without compromising the degree of protection. Base materials include:
- isol;
- brizol;
- films.
Isol. This material is obtained from waste rubber, which is devulcanized in a bituminous environment. After this procedure, the introduction of a fibrous filler, for example, asbestos fibers, as well as a number of additives. Izol is elastic, resistant to decay, easily tolerates deformation even when low temperatures. This material is waterproof, biologically stable and plastic. Its properties are preserved in a wide temperature range (-30..+100 C). The main application of isol is waterproofing of roofs.
The tensile strength of the material is up to 0.4 MPa, and the water saturation per day is less than 1% by weight. The mass of 1 m2 is only 1.5 kg. Inner side is protected from sticking in a roll with talcum powder, chalk or other similar material. There are only two types of isol: the first of them is I-BD, which does not have polymer additives, and the second is I-PD, which has special substances in its composition.
Brizol. This is base material. roll type, made from a mixture of petroleum bitumen, having different viscosities, with rubber. As a rule, shredded and processed car tires, as well as special plasticizers and fillers. In percentage terms, the composition is as follows: 60% is bitumen, 30% is rubber and 12% is asbestos. The proportion of plasticizer is small (2-5%).
The manufacturing technology of the material makes it chemically resistant. It can withstand 40% sulfuric acid, 20% hydrochloric acid and tolerates heating up to 60 C. Such properties determined the purpose of brizol, which is used to insulate a flat sloping roof laid with a layer of up to 35 mm. One of the features of the material is the ability to hold not only water, but also various gases.
Brizol cloths are supplied in the form of rolls, inner surface which is covered with finely dispersed mineral powder, which avoids sticking of the material during storage and delivery.
GMP. Hidden under the acronym waterproofing material derived from polyisobutylene. He is different high quality and durability. There are 3 grades of GMP designed to create multi-layer flat roofs, waterproofing and vapor barrier.
Film materials are also baseless. These include the well-known polyethylene films and polyamide materials. The main advantage of the films is their minimum thickness and almost complete water resistance, as well as low weight.
Polyethylene film is a good waterproofing material, but it is not without drawbacks. The main one is exposure to ultraviolet radiation, which destroys the structure of the film. The strength of the material allows it to withstand 4..8 MPa tensile strength. The heat resistance of the film is high and reaches 140 C, and the minimum temperature at which flexibility is maintained is -60 C.
Polyethylene film is a frost-resistant waterproof material that can also be used for warm roofs. Polyamide film differs from polyethylene in higher tensile strength in longitudinal direction, and in the transverse this parameter increases many times. If the thickness of polyethylene varies from 0.03 to 0.15 mm, then the polyamide film can be from 0.055 to 0.12 mm
Designation of roofing materials
Each type of coverage has its own designation, consisting of numbers and letters. The first character is a letter indicating the type of material, for example, "P" - roofing material. In second place is the type of coating, which can be: "P" - lining, "K" - roofing, "E" - elastic. The type of external dressing is indicated by the third letter: "Ch" - scaly mica, "M" - fine-grained, "P" - pulverized and "K" - coarse-grained. The brand completes the conditional graphic designation of the material. This is a figure showing the density of cardboard or its weight. square meter. The higher it is, the stronger the material will be.
Sometimes another letter appears in the designation - "O". She says that the material has a one-sided dressing.
It is worth using coatings in accordance with their purpose, because otherwise the service life will be much shorter.
Advantages of a rolled roof
Roll soft roof is a relatively inexpensive versatile material, which has a low cost compared to other types of coatings. The advantages of rolled roofing include, first of all, the light weight of the material. This reduces the cost of both transportation and installation.
The second feature of these coatings is that such material does not require regular maintenance, and the installation itself does not cause any particular difficulties. Unlike other roof protection methods soft roof it doesn't take that long to set up.
Another advantage of a properly arranged roofing pie using rolled materials is low level noise and good waterproofing. Moreover, modern coatings meet high fire safety requirements.
It is worth mentioning that modern roofing material has a very long service life, which means that the roof will require repair no earlier than in 15-20 years.
What is roll roofing made of?
Today, the raw materials for the main type of materials are:
- polyester;
- fiberglass;
- fiberglass.
Polyester is the most expensive and reliable basis. This synthetic material made from polymer fiber. It will withstand stretching up to 60%, and the tensile strength is almost 35 kgf/cm. The service life of polyester is also quite high.
Fiberglass fabric is made from interwoven strands of fiberglass. To create roofing materials, two types of fabrics are used - smooth and frame. The former are obtained on the basis of torsion of threads coated with a lubricant and forming a material having different kinds weaving. The main advantage of smooth fiberglass fabrics is their low cost, and the disadvantage is that deformation is possible during transportation or storage. In particularly difficult cases, bitumen peeling can even occur.
Frame fiberglass fabric is made from flat glass rovings interlaced with glass thread. Such a base is attractive in that it does not break, and practically does not deform. It is she who is used in the case when it is required to produce modern roofing material. Fiberglass is the most durable base, but in general, the type of bituminous binder used also has an effect. If its quality is low, then the roof itself may not live up to expectations.
The main aspects regarding the materials used when a welded roll roof is created have been discussed above. Most of the attention was paid to the materials themselves, and the technology of their laying remained behind the scenes. In the event that you need it, on our website there is Additional Information concerning the installation of such coatings.
Roll roofing materials
When choosing roofing materials for your home, it is necessary to take into account the advantages and disadvantages of each of the coatings offered on the market today. High-quality roofing - a guarantee of protection of the premises from any bad weather. Roll roofing materials are very popular today in the construction of not only industrial, but also residential buildings. Roofs, for the manufacture of which rolled materials are used, are lightweight, highly reliable and economical. At the same time, democratic prices are set for roofing materials, which significantly expands the boundaries of choice.
The roofing carpet is produced in rolls, the laying is carried out in two layers, and the top one is covered with a special protective dressing. For quality installation it is necessary to choose reliable components for the roof that meet all established standards and comply with safety norms. Along with installation, the choice of materials should be made by professionals.
Roll materials: categories
Based on the type of base, roll materials are divided into:
- basic or baseless (web structure);
- bituminous, polymeric, bitumen-polymeric (type of coating composition components);
- cardboard, polymer, fiberglass, combined (type of base)
- with fine-grained, coarse-grained, powdered or flaky dressing, film or foil (protective layer structure).
Depending on the binder used, the roll material can be bituminous or polymer-bitumen. Such roofing materials vary in price.
Bituminous roll materials. Bitumen softens at a temperature of 45-50°C, which is too low for roofing material. To increase the heat resistance of the final product, the bitumen is oxidized. This process reduces the frost resistance of the material. The price of such roofing material is very attractive to the consumer. Bituminous roofing material can also be used for waterproofing inside the building.
Polymer-bitumen roof. If you want the roof to last longer, use this type of material. It has a wider operating temperature range and improved reliability.
Depending on the category chosen for roofing materials, prices vary widely.
Roll roofing materials: division into classes
In the modern market, TechnoNIKOL Corporation today offers rolled materials of the following budget classes:
- Premium - have a long service life (25-30 years);
- Business - high-quality roofing materials that provide "free breathing" of the roof;
- Standard - designed for roofing of various slopes;
- House-keeper - the roofing covering which is characterized by fast and easy installation.
In each group, there are certain internal leaders of roofing roll materials.
- Technoelast DECOR allows you to create interesting coatings for a wide range of colors, turning roofing material into a design tool. High fire resistance allows Technoelast FLAME STOP to be used at facilities with increased fire safety requirements.
- Among roll materials of business class, Ecoflex is in high demand. Due to its high adhesive properties, ecoflex can be deposited on almost any non-combustible base, and plastomer-elastomer additives make the material resistant to high temperatures and allow it not to lose elasticity even at a temperature of -5 degrees. Roofing material Uniflex allows the installation of a breathable coating without removing the old roof.
- The most popular rolled materials standard - Linocrom and. These rolled roofing materials are successfully used both for the production new roof, and for the repair of the old. Linocrom is a material consisting of a non-rotting solid base, on which a bituminous binder is applied. Such a roof will protect the building from any atmospheric influences, will protect the house from dampness.
- Economy-class roofing roll materials - Bikrost - also have a number of advantages. As a result of 2-sided application to the base (made of fiberglass or bitumen with profile fillers) and due to the protective layer, high waterproofing is provided. The gluing technology makes it possible to reduce the layers of roofing materials.
Thanks to a wide assortment range, it is easy to choose rolled roofing materials, the prices for which are optimal for any category of buyers.
The lifespan of the entire building depends on the quality of the roof. Since it is the roof that provides its protection from moisture, cold and other influences environment. A fairly common roofing option is roll-type materials. We will consider the features of the choice, advantages and installation of a rolled roof further.
Roll roofing: scope and characteristics
The use of a flat roll roof is associated with the arrangement of the roof, the slope of which ranges from zero to thirty degrees. The number of slopes on the roof does not matter. Available finishes as flat roofs and sloping roofs. At the same time, in the process of surface finishing, removing old finish is not always necessary. If the roof has before repair flat surface, then it is enough to clean up the old damaged places and patch them.
The main advantage of rolled roofing is its long service life, which exceeds twenty-five years.
In relation to the technology of manufacturing roofing materials, they are of two types. The first option is used as the main coating; cardboard and fiberglass are used for its manufacture, which is processed using a special composition of a tar or bituminous nature.
The second version of fiberglass is based on its use without a base. In such a case, special mixtures are processed thermally with addition different kind additives and fillers. Further, the resulting composition is rolled into a canvas. Therefore, roll materials are of two types:
- integumentary;
- baseless.
In the second case, the material has a special base that enhances its texture with the help of fillers or additives.
Roofing from rolled materials is an inexpensive finishing material, the cost of which is much lower than that of alternatives roof finishes. Among the advantages of using rolled materials, it should be noted that they are light in weight, while reducing the cost of their installation, storage and delivery to the facility. In addition, installation work is carried out within one day, and two or three people are enough to complete them. Another advantage of roll materials is that they provide good sound insulation and high level fire safety.
For the manufacture of roll materials, materials are used in the form of:
- polyester;
- fiberglass;
- fiberglass.
The first option is the most expensive, but at the same time solid foundation. For its manufacture, polymer fiber is used. This material has a long service life.
For the manufacture of fiberglass, glass fiber threads are used, intertwined with each other. There are two options for fabrics used in the manufacturing process of roll roofing:
- smooth;
- frame.
For the manufacture of the first thread, they are twisted together, while the threads are coated with a special oil solution. In this way, it is possible to obtain a surface that is particularly smooth. This version of fiberglass is relatively cheap, however, improper storage leads to deformation of the coating or delamination of the bituminous layer.
Carcass glass yarn contains glass rovings, which are intertwined with glass yarn. This version of the base is not prone to deformation or breaking. It is the basis for the manufacture of high-strength roofing materials.
However, the most durable base is fiberglass. The reliability of the entire roof depends on its strength. The main indicator of the quality of fiberglass is the type of bituminous substance used to bind the fiberglass.
Roll roofing: main varieties
We offer you to get acquainted with the main options for roll coatings used in the process of roofing:
1. Coating of roofing material type. It is used to create roll base. Among its advantages note the low cost and ease of installation. At the same time, this material has been used for finishing the roof for more than 50 years. The use of glassine impregnated with petroleum bitumen is the basis for the manufacture of roofing material. Due to the fact that the material is very cheap, the duration of its operation is also low. This is the main disadvantage of roofing material.
2. Another option for roll roofing is rubemast. This version of the guided roof is similar to the previous one. However, rubemast has a special protective film, which prevents each layer from sticking together and provides protection front side material from mechanical damage. Although the material has a short service life, however, the ease of installation is much higher than that of the previous version.
3. The use of fiberglass or polyester materials is the basis for the manufacture of such material as glass roofing material. If we compare it with the previous options, then it is more reliable than a cardboard coating that has been impregnated with bituminous solutions. The strong base allows you to significantly increase the duration of use finishing material up to fifteen years old. In addition, the resistance of the material to mechanical damage also increases.
4. The use of eurorberoid is distinguished by excellent frost resistance and resistance to temperature changes. To create a reliable coating, a minimum number of layers is required, while the service life of the material is more than thirty years.
5. One of the newest roofing materials is a membrane type coating. Among its advantages are a high service life and resistance to mechanical stress. In addition, the installation of the material does not require special skills or special equipment. Some of the materials have a self-adhesive base; for their installation, it is enough to roll the canvas over the roof surface. The only drawback of such materials is the high cost, but it fully pays off with quick installation and reliable use.
Roofing roof roll baseless type: features and characteristics
A soft roll roof is a coating that lies on the base of the roof, completely repeating its shape, while the degree of protection remains at the proper level. Among the varieties of these materials, it is worth highlighting:
- insulating coating;
- brizol coating;
- various kinds of film roofing materials;
To obtain the first option, scrap rubber is used, which is double-vulcanized surrounded by bitumen. Further, a fibrous filler, such as asbestos fibers and various additives, is introduced into the medium. Among the advantages of isol, we note plasticity, resistance to decay, ease of deformation even in frost. In addition, the insulating coating is resistant to biological microorganisms, moisture, vapor permeability and plasticity. In addition, isol allows you to maintain its properties even at a temperature of -35 + 110 degrees. The main function of this coating is to provide roof waterproofing.
Brisol coating is also a baseless material, for the manufacture of which rubber and petroleum bitumen compounds are used, with various additives. More than 55% of the composition of the brizol is occupied by a bat, 33% by rubber fibers, 13% by asbestos. About 2-6% is occupied by plasticizers.
Through the use special technology rolled roofs, increases its resistance to chemicals. Therefore, the material is used in the process of waterproofing sloping roofs. Brizol retains not only moisture, but also gas compositions on the surface.
Brizol is supplied in a roll version, its inner part is coated with a fine powder, so sticking of the material is unacceptable.
Polyisobutylene is a material used for the manufacture of GMF. Among its advantages are a high service life and resistance to mechanical stress. The material is used for waterproofing roofs or for creating multi-layer roofing.
Baseless materials also include various kinds of films made of polyethylene or polyamide. Films have a minimum thickness, full moisture impermeability and light weight. In addition, their cost is much less than that of previous versions of roofing roll materials.
Roll roof installation: technology and instructions
Before starting the installation of a rolled roof, a series of preparatory work, the essence of which is to provide:
- devices for the base under the roof;
- installation of waterproofing;
- preparation of primer and mastic.
All work is carried out from the top, that is, from the area that is the furthest from the place where the material is supplied. Please note that the amount of laying material is directly related to the angle of the roof:
- if the roof slope angle is more than 15 degrees, then it is necessary to lay at least two layers of rolled material;
- if the slope angle is from five to fifteen degrees, then three layers must be laid;
- in the presence of a slope angle from zero to five degrees, four layers will be required.
Please note that the maximum roof slope for laying rolled materials is no more than thirty degrees.
All work begins with surface preparation before installing the vapor barrier. Thus, it will be possible to exclude the formation of moisture in the under-roof space. Next, arrange drainage system. After that, the supply of mastic to the roof begins. When using glassine as a vapor barrier layer, it is glued with mastic.
There are two ways to glue the vapor barrier to the roof surface:
- hot;
- cold.
Please note that cold mastic is heated to 150 degrees before being applied to the surface. To apply hot mastic, you need to heat it up to 220 degrees, and then add substances in the form:
- talc;
- tripoli;
- diatomite.
Before starting work, the roofing material is spread on the surface of the roof, cleaned of dust. The next step is to stick it on the surface.
The device of a rolled roof involves gluing the sheets together with the help of a related mastic. That is, when using a material based on bitumen, it is used bituminous mastic, for roofing roofing - tar-based mastic.
In the process of laying a rolled roof, you should consider:
- the size of the slope of the roof;
- the direction in which the water flows;
- the strength of the wind;
- ambient temperature.
In the presence of a slope of up to 15 degrees, the material is laid from the bottom of the roof to the top. Otherwise, sticking is carried out in the opposite direction, in order to ensure optimal water flow. Please note that the roofing is laid with an overlap, the minimum value of which is 10 cm.
To complete the work, two or three people will be required, one of whom will be laying the roof, and the second will smooth it over the surface with a brush and apply mastic. In addition, gluing and fitting the sheets should be carried out, and in order for the roof to lie well on the surface, a roller is required, with which the already glued material is processed.
In addition, during the execution installation work the quality of the glued material should be checked. This process involves the gradual separation of one layer from another. Note that a small gap is acceptable. If there are small deviations of the rolled material, it is allowed to shift it to one of the sides.
Tip: If bubbles appear on the roof after installation, use an awl or knife to pierce them. Laying layers is carried out gradually, especially for cold mastics. If applied, the waiting time between laying each layer is about 10-12 hours.
Installing a roll type roof is a rather laborious process, which will require several people to complete. If there is too much work, it is recommended to use special equipment of a mechanical type.
Features of the roll roof repair
If there are deformed sections on the roof surface, they are removed and replaced. There are several reasons for roof repairs:
1. The presence of blisters.
This problem occurs primarily in summer time of the year. This is due to the strong heating of the roof and the formation of condensate under it. In this case, it is enough to pierce the swelling and wait until the mastic flows out of it.
2. Formation of cracks.
In this case, cracks or gaps are cleaned and treated with mastic. Next, roofing material is glued to the surface. After that, the surface is again smeared with mastic and the same rolled material is glued on top as on the entire roof.
3. The presence of delaminations.
In this case, the material rises as high as possible, the roof surface is cleaned of dust and dirt, treated with a primer, and then with mastic. Next, the material is again glued to the roof.
