Opening your own business, realizing your old ideas, having a decent stable profit, acquiring a high social status - all these prospects promise the decision to become an entrepreneur. But it is not easy to come by.
This business idea is attractive for several reasons:
We are talking about service in the construction and installation, utilities and household spheres- wherever waterproofing is required. We use liquid rubber as an effective and safe waterproof material. This is the know-how in the field of coatings liquid application has already managed to declare itself as a reliable fuse of any building structures from the destructive and anti-corrosion effects of water.
This is the name of the mastic of cold application and instant hardening, produced on the basis of two components: bitumen and rubber. It contains neither solvents nor toxic volatiles... Experts call this modern coating "seamless spray waterproofing", emphasizing its key advantage - the absence of the slightest chance for moisture to access the protected surface.
An innovative feature of the black elastic material (which makes it resemble ordinary rubber) is the unique ability to adhere to any surface, regardless of the age of the precursor coating and its hardening phase. Liquid rubber comes into close contact with wood, roofing felt, slate, plastic, concrete, marble, steel, glass and other materials.
Waterproofing with liquid rubber is used in the construction of any construction projects:
With its many advantages - elasticity, reliability, sustainability, environmental friendliness, high level adhesion - liquid rubber has another significant plus: it is inexpensive. Therefore, it can be considered as a worthy alternative to traditional waterproofing products and a source of income.
Like any production, the waterproofing business needs, first of all, the purchase of productive means. Their small list includes:
Today's domestic market offers installations for spraying liquid rubber from both Russian and foreign companies. They differ mainly in power and price. If foreign devices cost from 200,000 rubles, then the price of domestic models starts from 120,000 rubles.
In addition to the high cost, a significant drawback of imported plants is their adaptability to Western raw materials. Based on this, it is more reasonable to purchase a Russian unit: any raw material will suit it, and in operation it is cheaper.
When choosing equipment manufactured in the Russian Federation, it is worth focusing on characteristics such as performance, weight, dimensions, power and, of course, price. Comparing, for example, the brands RX-27BT9 (a product of the New Construction Technologies plant) and UZhK-2S (a model produced at the Dikam PF), we come to the following conclusions:
In this case, one should take into account the information from the technical passport of the UZhS-2S: this model can also be used for the manufacture of penoizol.
At the initial stage of activity, a novice entrepreneur needs to find out what his business plan will result in. In other words, he must clearly understand how economically profitable his business will be.
Let's calculate the volume of capital investments in our case:
Total: 160,000 rubles are required to start a business project.
Now let's move on to calculating the monthly income and expenditure parts of the budget:
Total: monthly expenses will amount to 28,000 rubles.
Fulfilling 2 orders per month for the processing of objects with a joint area of 500 m2, you can count on a monthly profit of 67,500 rubles. The summary costing looks like this:
A rubber membrane made of a bitumen-polymer emulsion is a reliable waterproof roof covering if, in addition to spraying liquid rubber, a set of measures has been performed. This is the preparation of the base, and the subsequent protection of the waterproofing coating.
This page sets out the site General requirements concerning waterproofed with liquid rubber. The recommendations are applicable for both new concrete roofing and renovation soft roof on a roll base.
A typical technological map of the roof (in operation and inversion) with waterproofing from a bitumen-polymer emulsion is shown in the figure below. Click on the picture to enlarge.
What? A little surprised? The "bouquet" of all sorts of things over the waterproofing membrane is hard to miss, although waterproofing is done with liquid rubber
And why? Let's try to figure it out.
To the question: "Is it necessary to protect the coating of bitumen-polymer emulsion on the roof?", The majority of producers / suppliers of raw materials in Russia, at best, will give an evasive answer. This means that they understand their material. But if someone says that it is enough to apply liquid rubber with a layer of 2 mm (3 kg / m 2) and it is guaranteed to last under ultraviolet light on the roof for 20 years and such a roof can be actively exploited both in winter and in summer, then ... or people do not understand anything about that they are selling or the reason for such an answer lies beyond the bounds of goodness and love for others.
You thought that roof technical map liquid rubber should be both simpler and shorter? That it is enough to spray a bitumen-polymer emulsion on the surface of a flat roof and be done? Many people think so. Illumination, along with disappointment, will come in a few years. It can be 3, 5, 7 or even 10. But this will happen sooner or later.
Early (2-3 years) - if:
Late (5-7-10 years old) - if:
If you need to do so as not to remember the roof for 15-20 years, then you should understand that leaving a membrane of liquid rubber on the roof, as topcoat, - recklessly. Accordingly, the requirements should be met technological map for roofing in terms of protecting the material from UV radiation and external mechanical damage ..
If the flat roof is operated, i.e. citizens will stagger on it one by one and in groups, using the roof as a viewing platform, as a platform for games, recreation, fun, entertainment, such as barbecue, etc., then liquid rubber should be protected thoroughly - this is shown in the figure above. Please note that an inverted roof is shown - insulation over waterproofing. This is exactly the solution for an actively exploited flat roof.
If on a flat roof there are barbecues, sports activities and other excesses, incl. girls women in stiletto heels are not expected, but it is possible that antennaemen, ventilators, and janitors (regardless of nationality) may appear on the roof, and these categories of citizens will move on the roof not in herds, but in rare and small groups, then there is no need to do inversion roof and arrange a screed over the rubber and lay out the tiles. The issue of rubber protection can be solved much easier. Well, for example, a layer of sand or pebbles or
If the flat roof is unexploited, i.e. if there is someone to go to it, it is rare (well, even once a month, but on business and so as not to leave mechanical damage on the coating), then it is quite enough to cover liquid rubber with a reflective material (paint, mastic). A typical technical map for an unexploited roof is shown in the figure below. Pay attention, here is already a classic "pie" for a flat roof waterproofing over thermal insulation.
Before waterproofing the roof with liquid rubber, you should carry out all general construction work at the facility so that after applying liquid rubber no unauthorized people move on the surface and, moreover, do not carry out loading and unloading and transportation of building materials, equipment, etc. by coverage. This is possible if the liquid rubber membrane is protected from mechanical damage.
If all the construction and installation work at the facility has been completed, then the next step is to directly prepare the surface.
Install all engineering installations requiring mechanical fasteners.
For example, in the case of a roof, it must be fixed to the load-bearing slabs drain funnels expansion joints expansion joints engineering equipment, anchor bolts.
Perform steam and heat insulation.
If we are talking about a classic flat roof, when a vapor barrier is laid on top of a reinforced concrete slab, then thermal insulation. If the roof is inverted, then the thermal insulation is already laid on top of the waterproofing. It is also possible when the thermal insulation is laid on vertical walls over rubber, for example for foundation walls.
Dry the base.
In the opinion of the majority (and this idea is "fueled" by the sellers of raw materials and equipment for liquid rubber), the bitumen-polymer emulsion can be applied even on a wet base and even in the rain.
It is possible, but not necessary.
If you want to do everything correctly and get a perfect coating with a guarantee of quality, then not only the roof surface must be dry, but also there must be no water under the base (old roll, screed, etc.).
For information on how to dry the roof and why to do it before applying liquid rubber - read on the website the article Roof Waterproofing → Roof Drying.
Cleaning the base from debris and dust.
Remove debris and dust. Old paint scrape off. Remove rust with a brush. Everything metal surfaces must be degreased. Grease, oil stains, as well as stains from fuels and lubricants - to clean with solvents, then rinse with water.
For information on how to clean the roof before applying liquid rubber, see the article Roof Waterproofing → Cleaning the Roof Base.
Roof ventilation device.
The device of the ventilation system of the under-roof space is one of the most important stages of work on the technological map of a flat roof. You can ideally perform roof waterproofing, but if you do not provide for ventilation of the roof, then after a few years the coating will be broken.
Why is it necessary roof ventilation and how to arrange it when waterproofing a flat roof or repairing a soft roof - read the article Roof Waterproofing → Roof Ventilation.
Preparation of the base.
For information on how to prepare the base before applying liquid rubber - read the article Roof Waterproofing → Preparing the Roof Base on the website.
And after all the preliminary stages of the technological map for the roofing device have been completed, you can proceed directly to the work on applying liquid roofing waterproofing.
We choose a warm, dry day (we look at the weather forecast), and we bring equipment and raw materials to the site.
Regarding the weather in which work can be performed - not everything is so simple. Most sellers of raw materials and equipment for liquid rubber declare that dusting can be done almost in the rain, and the temperature the environment must be at least + 5 ° C.
As they say, the owner - the master or the freeman - will, and the extreme lover - the release of andrenaline into the blood will never be superfluous. However, another expression would be appropriate, about when the smart learn from other people's mistakes, and the other half of humanity - from their own.
About weather to carry out waterproofing works with liquid rubber in accordance with the technological map of the roof - for more details, read the corresponding article on the website.
We bring to the construction site the required amount of bitumen-polymer emulsion, geotextiles and, it would be nice to have one-component liquid rubber - a handy thing, it will always come in handy if you have to work on waterproofing or repairing the roof with such material as two-component liquid rubber
Regardless of who the manufacturer is, imported or domestic raw materials, but using additionally geotextiles and water-based bitumen-polymer mastics, you can significantly improve the quality of the coating and increase the service life.
We plan the consumption of liquid rubber based on the fact that the thickness of the coating should be at least 3 mm, i.e. liquid consumption per 1m2 flat surface- 4.3kg.
Do not forget what needs to be added to the parapets, abutments: on average + 5% of the horizontal surface area. Some, when entering the vertical wall of the parapet, make the layer slightly smaller than on the horizontal. In principle, this is permissible if the junction of the abutment itself is reinforced and a fillet is arranged. But to calculate the required amount of bitumen-polymer emulsion, it is better to omit this moment.
When applying liquid rubber, an error is permissible (even the most experienced operator cannot keep an even layer), variations in thickness are possible. Therefore, it is better to bring more material to the object than the calculated theoretical value. As a rule, a multiplying factor of 10% is adopted.
The multiplying factor is also necessary because some of the liquid rubber will be required for priming the surface. Consumption of bitumen-polymer emulsion during priming is minimal and, if the base is properly prepared, it is 150 ... 250 grams per 1m2. However, an average of 1 barrel of liquid rubber is required per 1000m2.
In total, for a roof of 1000m2, in order to fulfill the requirements of the technological map of the roof, it is required:
((4.3kg x 1000m2) x 1.05) x 1.1 = 4966.5kg ≈ 5000kg = 5 tons of liquid rubber
What? Did it work a lot? Did you think that 1000m2 is 2.5 or 3.0, well, a maximum of 3.5 tons?
Most, at best, think: 3.5kg per 1m2, so for a roof of 1000m2 we will get 3.5 tons.
And the parapets? And the primer? And the application error?
Ok, let's solve the problem with back side: we will determine the average thickness of the membrane on a flat roof 1000m2, if 3500kg of liquid rubber was delivered to the object.
(3500kg / 1.1 / 1.05 / 1000m2) x 0.7 = 2.1mm
What is the best liquid rubber membrane thickness of 3mm or 2.1mm? This question can be considered rhetorical, and the answer is left on the conscience of the roof waterproofing contractor.
When the contractor still has "confidence" that 2.1mm is better than 3.0mm and the customer is "sucker", then it can be explained that if the roofing sheet says "waterproofing liquid rubber 3mm", it means "consumption liquid rubber 3kg / m2 ".
If liquid rubber is used for waterproofing or repairing flat roofs, it is always necessary to have on hand and use geotextiles.
In the pictures illustrating the technological map of the roof, it can be seen that geotextiles are used both for reinforcing the junctions and for creating a separation layer, for example, between the waterproofing and the drainage membrane and between the insulation and the screed.
As for the consumption of geotextiles for separating layers - everything is clear here. You need as many square meters as you plan to spray liquid rubber, lay insulation or fill in screeds horizontally.
It is necessary to calculate the consumption of the geotextile that is embedded in the structure of the "rubber", reinforces it, strengthens it, as a result of which the mechanical properties of the membrane increase many times over. In addition to abutments, geotextiles should be used at joints various elements horizontal bases.
It should be understood that different geotextiles are used for reinforcing liquid rubber and for forming a separating layer, and the differences are not only in terms of density.
So, if the roof area is 1000m2, and it has a rectangular shape, then its perimeter, i.e. the minimum length of the abutments ranges from 126 to 220m2. The geotextile should be rolled in such a way that it covers each of the articulated surfaces by 150 ... 200mm, i.e. for 1 running meter of abutment, 0.4m2 of geotextiles will be required. Therefore, in order to reinforce the abutments of the largest rectangular roof extended by 100m, 220 x 0.4 = 88m2 geotextiles are required.
But rarely when the roof has an ideal rectangular shape, there are always breaks, rises, various designs on the roof - all these junctions should be reinforced, therefore the consumption of geotextiles can be more than the calculated 88m2. However, geotextiles, rarely where, except for markets, are sold for several square meters. If you take it in specialized firms, then the minimum shipment is a roll, which is usually 200 or more square meters.
For more information on the use of geotextiles for waterproofing or roof repairs, see the article on spraying liquid rubber on the roof.
So, we calculated and purchased the required amount of materials, chose the day and delivered the components and the installation for liquid rubber to the object.
Then, we prepare the raw materials (it still needs to be prepared!), Set up the equipment and start working: we prime the entire roof, reinforce the joints and abutments with geotextiles, prime the geotextiles, apply a waterproofing layer of liquid rubber.
Learn more about these technological operations, during which a seamless bitumen-polymer film is formed, embedded in roof technological map, as "the main waterproofing" - in the relevant articles of the site site.
Example 1. There is a foundation of a cottage under construction with a perimeter of 150 meters and a height of 3 meters.
The structure is characterized by a complex perimeter geometry. Also, shells with a depth of more than 1 cm are noted on the foundation (formed when poor-quality formwork concrete is poured). The total area of the sinks is 10 m2. Also the presence of four joints foundation slabs vertically and full adjoining at the junction of the foundation walls to the foundation lens. The foundation also has 8 angles at 90 degrees (i.e. sharp corners).
Foundations of any type, especially complex geometry (and there are most of such foundations now, since projects often include wine cellars, billiard rooms, swimming pools, etc.) - this is the kind of work that can be done efficiently and quickly only with the help of seamless spraying technology waterproofing Liquid Rubber.
Scope of work for this object:
The total area of the foundation is 450 m2, of which 150 m2 at a depth of over 2 meters;
The total area of shells with an average depth of 1 cm is 10 m2;
The total area of joints, corners and abutments - 4х3m (linear footage of the vertical slab joints) + 150m (linear footage of abutments at the junction of foundation walls to the foundation lens) + 8x3m (linear footage of 8 90-degree "type" corners) = 12 + 150 + 24 = 186 m2.
Applied equipment (prices as of autumn 2015):
Installation of RХ-28 / 220V (the choice is due to the lack of 380V electric power supply on the site). Cost - 168,500 rubles;
Overalls, electric stirrer, working tool - according to the list additional equipment and accessories for the RХ-28 / 220V installation. The cost is about 11,500 rubles.
TOTAL for equipment - 180,000 rubles.
Raw materials and material consumption (prices as of autumn 2015):
Two-component waterproofing system "Liquid Rubber for underground structures" - 300m2 x 3l / m2 (foundation waterproofing at a depth of up to 2 meters) + 150m2 x 4l / m2 (foundation waterproofing at a depth of over 2 meters) + 450m2 x 0.5l / m2 (preliminary priming waterproofing surface) = 900l + 600l + 225l = 1775l. The cost is 1775l x 125 rubles / liter = 221875 rubles;
Calcium chloride, 2 bags of 25 kg (at the rate of 1 bag per 1000 liters of "Liquid Rubber"). The cost of 2 bags x 1000 rubles / bag = 2000 rubles;
Geotextile substrate - 0.2m (width of the reinforcing strip) x 186m2 (total area of "dangerous" places) = 37.2m2. The cost is 37.2m2 x 20 rubles / m2 = 744 rubles;
TOTAL for raw materials and materials - 224 619 rubles.
Time required to apply liquid rubber:
Casting and waterproofing of 10 m2 sinks - 2 hours.
Preliminary priming of the waterproofing surface 450m2 x 0.5l / m2 = 225l - 30 ... 45 minutes (taking into account possible stops).
Rolling-in of geotextiles in "dangerous" places of joints, corners and abutments: 0.2m (width of the reinforcing strip) x 186m2 - 3 hours (slowly and efficiently).
Application of liquid rubber 1500l. - 3.5 ... 4 hours.
TOTAL elapsed time: 9 ... 10 hours.
Economic evaluation of roof waterproofing with liquid rubber.
Reliability and durability flat roofs guarantees the use of modern building technologies and materials such as liquid rubber. Such roofs are distinguished by: waterproofness, non-combustibility, ease of installation and maintenance, long service life.
For soft roofs, there are 2 types of work:
1. Major overhaul roofing - includes the complete removal of the old waterproofing (usually: roofing felt) coating, repair of the screed, laying of a new roofing carpet.
2. Maintenance roofing - consists in replacing defective areas of the old roofing felt covering, sealing holes and cracks and laying new material.
Example 2. Overhaul of a flat roof.
Number of aerators 1-2 pcs. for 50-100 sq. m. The cost of one standard roof aerator is 700 rubles / piece. The cost of its installation is 350-400 rubles / piece.
In places of bulges, a cross-shaped incision should be made (opening with an "envelope"), bend the panel, thoroughly clean the base, dry it with a flame gas burner and apply mastic to both the base and the carpet. Then the folded edges of the carpet are returned to their place and pressed. For this operation, it is advisable to use ready-made cold mastics.
The cost of a one-component mastic is 250 rubles / kg, consumption is 1.5-2.0 kg / sq m.
Places where roll material completely rotted, needs to be cut. Thoroughly clean the formed recess, fill it with a cement-sand mortar.
The more accurately the felling takes place, the less you may have to repair the screed. To repair a cement-sand screed, a solution of grade not lower than 150 is used. 8-10 days after laying, the screed is primed. Bitumen polymer mastic (liquid rubber, without hardener) is used as a primer.
Consumption 0.5 kg per 1 sq. m, the price is 125 rubles / kg.
Reinforcement increases strength, but reduces the elasticity of the mastic coating, so it is necessary to understand what is preferable for a given roof. Reinforcement can be performed only in individual nodes (usually abutments and mates).
Reinforcement is done as follows. By spraying, a thin layer of Liquid rubber (without hardener) is applied, with a consumption of 0.3-0.5 kg, geotextiles are laid and rolled with rollers to ensure a snug fit to the base over the entire surface, then a thin layer of Liquid rubber is applied on top - consumption 0.5 kg / sq m for the impregnation of geotextiles, holding until completely dry for 2-5 hours.
After carrying out all of the above works, the main waterproofing coating (liquid rubber) is installed.
Bitumen-polymer mastic is applied by spraying; for this work, equipment of the RX series for liquid rubber is used.
Consumption of bitumen-polymer mastic is 3.0 kg per 1 square meter to provide a waterproofing layer of at least 2 mm.
The cost of 1 kg is 155 rubles.
Example 3. Flat rabbit repair industrial building 20x30 m.
The total coverage area is 600 sq m.
Old roofing material. The roof has bulges with a total area of 100 sq m.
When the blisters were removed (cut), cavities 30 mm deep were formed.
Approximate cost estimate for materials:
| Name of materials |
Unit measurements |
Price |
Qty. |
Material consumption |
Total, rub. |
| Sand-cement |
Bag (50 kg) |
250 rub / mesh |
1.2 mesh / sq m (screed thickness 30 mm) |
||
| Geotextile |
20 rub / sq m |
||||
| Aerator |
1 pc / 100 sq m |
||||
| Geotextile primer and impregnation (Daklar) | |||||
| Main waterproofing layer (Daklar) |
Let's talk about the main question before painting a car with liquid rubber: how much plastidip is needed to paint a car? Or what is the consumption of liquid rubber per 1 m2?
Before starting the epic, let's immediately dot the and, namely:
In the Technical Data Sheet, the manufacturer indicates the liquid rubber for the car which consumption per square meter. For example, some older documents contain information that a can of plasti dip 3.8 liter paint can be painted on 3.7 square meters with a final layer thickness of 0.38 millimeters.
In other documentation for liquid rubber, the consumption will be 2.78 square meters with a layer of 0.49 mm.
As you can see above, the consumption of liquid rubbers for a car is considered to be at a certain thickness. And the thickness of the plastidip, in turn, will affect its strength, service life and reliability in operation. Because of this, it is not worth saving a couple of thousand on the consumption of liquid rubber for a car, when in the future you will have to remove all plasti dip painting for this reason.
In continuation of today's topic about the calculation of liquid rubber for painting the entire car, I would like to show one work on painting a car with a plastidip using a stencil. This is not a very difficult process, but extremely time consuming due to the presence of a large number of joints of liquid rubber with masking tape.
When you paint a car with liquid rubber and want to save on plastidip consumption, be sure to paste over all the headlights, glass and any elements that do not need to be covered. This will greatly reduce the consumption of liquid rubber on the car.
Good preparation a car for painting plasti dip differs from a professional to a beginner. See what result you can get, what clear curved lines of the painted plastidip were obtained on the machine.
Most modern construction and renovation companies offer their customers to switch from roll to liquid waterproofing of surfaces. The solution is simple and economical, because the material does not need to be adjusted, throwing out unnecessary fragments.
Of course, in order to determine the benefit of the proposal, it is necessary to calculate the approximate consumption of liquid rubber per 1 m². Its value largely depends on the condition and type of the base surface. For external finishing works usually a thicker layer is used to provide adequate protection against the vagaries of nature and moisture.
Please note that it is enough to apply 2-3 layers of PBK "Haveg" to form a reliable elastic membrane on the surface, providing the proper degree of protection and properties.
So, how much liquid rubber is needed for 1 m²?
After taking measurements and calculating the total area, you can easily calculate how much liquid rubber is required to waterproof the surface in your case. We recommend ordering Haveg waterproofing with a margin of 5-10%. In addition, it is worth monitoring the thickness of the layer and the approximate consumption.
pay attention to online expense calculator, which is present on the website of our online store. With its help, you can easily and quickly calculate how much material you need to carry out the work.
Do you have any questions? Call or order a free call back!
