The use of facade moldings allows even the most ordinary buildings to give a completely exclusive look, and the cost of such a transformation is available to many owners of country houses. You can choose the design of the building yourself, or you can turn to the designers for help - the second option is preferable when designing large prestigious buildings.
Facade stucco molding
Depending on the form and purpose, the facade stucco molding is divided into the following types.
During installation, they must necessarily abut against the surface; they are rarely installed in a suspended position. It is recommended to involve professional builders for installation, it is very difficult to do the work yourself without practical skills.
The semicircular arch facilitates the facade of the house, creates a beautiful design effect reminiscent of antiquity
Molding and corner element of the insulated facade
Classic style cornice
Monumental and decorative panel on the facade
Polyurethane foam balustrade
Architectural elements of window openings
Stucco can be used to decorate all walls or individual architectural elements. Modern technologies make it possible to make facade stucco moldings from materials of various physical and price parameters.
Each of them has its own pros and cons.
What are the forms of facade stucco molding?
Table. Advantages and disadvantages of materials for the manufacture of facade moldings.
|Material name||Positive aspects|| Negative aspects |
| The material does not have a harmful effect on the environment, in terms of physical strength takes the middle place. Gypsum has a high manufacturability - the cost of products decreases, the possibilities of sculptors expand. |
The relatively small weight allows the use of simplified technologies when fixing the stucco molding on the facade walls.
| High hygroscopicity is the main disadvantage of gypsum. Another problem is fragility. With insignificant impact forces, the gypsum crumbles or cracks, the figures have to be repaired. To protect against moisture penetration, modern impregnations and protective coatings must be used.
Installation on open facade walls is highly discouraged; it is better to install in places protected from atmospheric precipitation.
Polyfoam, polyurethane foam and other foamed polymers
|The lightest, in most cases it is fixed only on adhesives with high adhesion to building materials. For the manufacture of stucco molding from polymers, brands with small sizes of air bubbles are used, due to this, the strength slightly increases. In terms of cost, they belong to the cheapest segment.|| Very low strength.
In this regard, such stucco molding is recommended to be installed at a height, in places that minimize the risk of mechanical damage. Another drawback - for unknown reasons, birds really like polystyrene, and therefore no precautions will save the stucco from damage.
Concrete and polymer concrete
| The most durable , beautiful and durable products. Most often they have classic forms and motives. The service life is calculated in many tens of years. |
| The most expensive stucco molding, has a large mass and requires special construction measures during installation. The production technology is complex, such stucco molding can only be produced by large companies with modern equipment and highly professional specialists.
Plaster molding has been known to mankind for centuries
Imitation of foam molding
Another example of facade molding
Stucco molding can be bought ready-made or made by yourself. But in all cases, the surfaces must be additionally processed. How to improve the appearance of decorative elements?
You can use the classic method - paint products to match the color of the front walls. If you want to experiment, use contrasting paints. The stucco molding covered with patina looks original, you can imitate gilding, make various textures on surfaces.
Staining plaster moldings, polychromy
The wax not only protects the decor, but also gives the surfaces a shine. The coating lasts for many years. In a warm period, wax can independently tighten microcracks, which increases the life of the stucco molding.
A stucco element rubbed with decorative wax
A hard brush with a long bristle is used - the effect of cracks is created; to increase the effect of antiquity, in some places the surface can be wiped a little with a rag. The work requires practical experience, if you do not have it, then you should practice first.
Another way of decorating stucco is patination, i.e. artificial aging of stucco elements to give them exquisite decorativeness
On the main layer of not dried paint, a second one with new colors is applied. The border between them is blurred, both colors are visible on the stucco molding. To enhance the effect, the second layer can be applied with foam rubber.
Staining plaster moldings
Table. Recommended paints to improve the appearance.
| Inside the paints there are microscopic capsules with a different color paint. During application, the capsules burst, creating a marble texture on the surface.
| Only work in dark time when exposed to artificial light. Paints reflect light for a mesmerizing glow effect.
| Due to special microscopic additives paint reflects different colors depending on the viewing angle.
The stucco molding has a "chameleon" effect, and the play of colors is almost never repeated.
Note! We do not recommend making your own stucco molding. This is a long and rather difficult matter. Instead of the desired savings, you can get continuous losses and wasted time. It is much more profitable to purchase ready-made stucco molding, since the choice is huge today.
A wide range allows you to create facades of houses of any style.
Stucco molding for the facade of the house
Window openings and cornices
As for the finishing decorative finishing, this is not only possible, but also necessary. Stucco molding is sold with an untreated surface, it is necessary to independently select paints and coating technologies.
Important! Due to the fact that the facade stucco is placed in the open air, you should be very careful about its installation. Consider the step-by-step installation instructions.
Polyurethane as a basis for stucco molding
Facade stucco molding plaster
Plaster stucco facade
Remember that stucco moldings that have fallen from the façade often cannot be restored. In addition, re-installation is time consuming and expensive. It is much more profitable to immediately take the whole range of measures to ensure high-quality installation, fully comply with the recommended technologies and materials.
Step 1. Select specific types of moldings and their location.
In principle, there can be no universal advice here, each home owner makes decisions independently or after talking with professional architects and designers. Once again, we remind you that you need to be very careful with plaster molding, its use for facades is limited.
Preparation of decorative elements (in this case - from expanded polystyrene)
Important! When choosing a style for the design of front walls, take into account not only the decor indicators, but also the bearing characteristics of the walls. If the facades are not very durable, then it is recommended to use lightweight polystyrene stucco molding, if the facades are brick or stone with concrete plaster, then elements from any materials are suitable. It goes without saying that the stucco molding can only be installed on cement-sand plaster or facade brick.
Step 2. Prepare the facade. Clean the wall surface from dust and dirt, check the linearity of the plane. The difference in height should not exceed 2 mm per linear meter. If the wall does not meet the requirements, then the area where the stucco will be installed must be leveled.
It is not necessary to finish the entire wall, this does not in any way affect the quality of installation, fix problems only in those areas to which the stucco will be fixed. Level the wall with a trowel, use coarse dry exterior plasters. The more roughness the wall surface under the stucco has, the higher the adhesion strength.
Deep penetration primer application to prepared surface
Professional recommendation. Inexperienced builders often have problems at the junction of a new mixture with an old one - it turns out to be stepped.
This immediately catches the eye and impairs the appearance of the facade. In order to make the joint invisible, rub it with a damp washcloth until the solution sets. Movements should be light towards a clean wall. Make sure that a thin layer of cement-sandy plaster does not lose moisture very quickly.For chemical reactions to take place, cement requires water, otherwise it becomes fragile, a thin layer of new plaster in the winter will surely fall off.
As a result - an extraordinary renovation of the facade wall. If the marriage is low, there are few problems, and if the plaster fell off at a considerable height, then you have to suffer.
Step 3. Make precise marking of the installation locations. The markup depends on the size / type of stucco molding and its location.
Above in the article, we already talked about various types of products, decide on the placement of each of them. If you are mounting long flat structures, then it is better to use a special rope with blue for marking, (with the help of such a rope, lines are beaten off on the surface of the wall along the outer perimeter of the stucco molding). Check the position carefully, use a level. After drawing the lines, move a little away from the building and examine the wall from a distance. In this way, you can check the correctness of the markup.
The next step is marking the installation locations
Important! Pay close attention to the corners, they should all be exactly 90 °. Otherwise, there will be big problems during the installation of the side elements; only professional craftsmen can carefully connect them at different angles. Stucco molding is a rather expensive material, if the first time it is not possible to make the correct cuts, then the piece will have to be discarded and bought a new one.
Step 4. Begin to fix those elements that do not have a bottom stop.
Most often these are window sills. In the future, the following elements will hold on to them, the structure will become strong. To ensure that the stucco molding does not spontaneously fall down along the line during the glue hardening, make several stops. These can be ordinary nails or dowels, the specific choice depends on the material for making the front wall.
Take measurements of the lower cornice, saw off the ends at an angle of 45 °. It is better to use a miter box for work. Foam stucco molding is perfectly sawn with an ordinary hacksaw with fine teeth or a blade for metal. If you have an electric hand saw - great, the work will go much faster and the quality of the cut will improve significantly. By the way, modern saw models have a table with an indication of the cutting angle - installation is greatly simplified and accelerated.
Cutting elements with a red-hot thread
On window openings, it is recommended to install the lower cornice slightly wider than the upper one, and make the end rectangular ...
Step 6. Prepare the glue to fix the stucco to the wall, most often the mass for ceramic tiles is used for this purpose, but you can buy special solutions.
During the preparation of the mixture, follow the manufacturer's recommendations exactly, violation of the technology has a negative effect on adhesion.
Next, you need to prepare the glue mixture
Step 7. Using a comb trowel, gently apply the adhesive to the back of the molding and the wall. If the weather is very warm, then the section of the wall must first be moistened with water.
Press the stucco molding against the wall as tightly as possible, remove the glue that has come out with an even, clean spatula. Make sure that the bottom edge rests against the nails and the molding does not slip.
The lower element is fixed
Step 9. Attach the upper part of the decor to the wall, mark the cutting points under an angle of 45 °. Make a cut on a miter box.
If you do not have a factory one, then you can make the device yourself. To do this, you need several pieces of flat edged board or plywood. Connect them with the letter P, in the side edges make cuts at 45 ° in two directions.
Drawing of a wooden miter box
DIY miter box made of wood with finished cuts along the sides
Applying glue for the top of the decor
Glue is applied to the element itself
Setting the top element
Step 10. The same prepare the side elements in a way.
Applying the adhesive
Fixing the side element
Step 11. Connect all the elements, press firmly and hold in this state for a while. Remove any excess that has come out.
The connected elements are tightly pressed
Step 12. To increase the strength of the fastening, it is recommended to fix the stucco in several places dowels.
To do this, drill holes in the elements and the wall, fix the dowels, and seal the visible holes with silicone.
Checking the levelness with the building level
The window is decorated
Important! Remember that some brands of silicone can shrink during solidification, do not rush to immediately paint the surfaces of the stucco molding. If small depressions appear, then they should be repaired with silicone. After the stucco molding is fully glued, the lower support stops can be removed, and the holes in the wall can be repaired using the usual method.
Wide gaps between the individual elements can be sealed with polyurethane foam.
Before that, clean them of dust and moisten them a little. Blow the foam into the gap, allow time to harden. Next, cut off the protruding part with a sharp assembly knife, level the surface with silicone.
Note! We talked about the simplest way of attaching stucco over window openings. The technology for fixing the rest of the types has no fundamental differences, only the location of the decorative elements changes.
It is not recommended to use it for decoration of facades.If you have such a desire, then you need to protect the surfaces as much as possible from the penetration of atmospheric precipitation. When freezing, wet products will surely crack. If you do not want to use waterproof, but cheap and fragile foam plastic stucco molding, then it is better to lose more money and purchase concrete or polymer concrete products.
Gypsum stucco facade
Gypsum stucco molding is much heavier than foam, such material properties make certain adjustments to the installation technology.
Thirdly, the dust from the grinder settles on the wall and all architectural elements; you will have to waste time to clean it.
To improve performance, it must be impregnated at least twice with special deep penetration primers. Penetration depth is at least 2 mm.
Alpina EXPERT Primer for plaster
The use of dowels is mandatory, the holes from the hardware are sealed with prepared glue.
Strength requirements for building gypsum (gypsum grade)
Decorative marble plaster
Wall finished with plaster, depending on depending on the type of material, it can have a different texture, color, look modest and inconspicuous, or, on the contrary, very expensive. Marble decorative plaster is one of the types of decorative surface finishing. It is used for various purposes, including for facades.
Concrete products must necessarily have an emphasis; they are not fixed when suspended to the front walls.
If the concrete stucco molding is large, then during the installation of individual parts, construction reinforcement is used to increase the strength of fixation.
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