Universal technology for stucco facade for insulation

Contemplating making exterior home renovations? A stucco facade is one of the best ways to improve both appearance and energy efficiency. This adaptable method not only makes your home look great, but it also insulates it, keeping it warmer in the winter and cooler in the summer.

Built to last for centuries, stucco is a long-lasting blend of cement, sand, and water that is used to both decorate and protect buildings. In order to increase flexibility and durability, additional materials like acrylics or polymers are frequently used in contemporary stucco applications.

The ability of stucco to produce a smooth, consistent external surface that can be tailored to fit any architectural style makes it perfect for facades. Whether the style of your home is modern, traditional, or somewhere in between, stucco can be added in a variety of colors and textures to blend in with the surroundings.

In addition to being aesthetically pleasing, stucco has a functional use as it acts as a weatherproof barrier. It protects your house from the elements, including wind, rain, and sunshine, reducing the chance of long-term structural damage and moisture intrusion.

How to choose materials for insulation of the wall in a wet way

A specific degree of water absorption, frost resistance, vapor permeability, and thermal expansion should be present in the raw materials used in the project.

Polystyrene foam or basalt (stone wool slabs) can be used as an insulating layer for a wet facade. It is suggested that basalt wool slabs with a density of 150 kg/m.cube and a strength threshold of at least 15 kPa be used to decorate the house’s facade.

Since glass wool’s structure is not meant to support heavy loads, it is not utilized as a heater for the plaster system.

Polystyrene extrusion insulation for facades has lost its popularity because it is more difficult to repair and has a weaker adhesion than building glue. Furthermore, this material releases toxic substances when it smolders in a fire and "does not breathe," preventing the free conversion of air and steam.

Only foam brands that adhere to fire safety regulations are permitted to be used to warm the walls of the home. Furthermore, dissection of mineral wool is done for the same reason.

If the protruding log joints are left in place when insulating a timber house with foam, the saw-cut crowns will cause the house’s corners to freeze.

The choice of material is determined by the wall’s composition and thickness, the climate in the area where construction is taking place, and the interior decoration layer.

How to fix thermal insulation slabs

The wall surface that has been previously prepared is adhered to by adhesive. The edges of the material are neatly covered with glue. By using this technique, less adhesive is used while still getting the required strength. At least 40% of the insulating surface is covered in glue when the device is operating.

Dowels are used to further secure the thermal insulation layer after it has dried for three days. Depending on the volume and quantity of pores, fasteners can penetrate the wall 5 to 9 cm deep. A wide-hatted dowel must be used to attach the insulation. Polyurethane foam should be used to make Dubel’s hat in order to prevent wet spots from showing up on the facade.

Using a dowel with a metal head causes spots to appear on the facade.

T.O. Warm air exits the house and condenses, causing the metal at the base of the outer surface to freeze. As condensate gets closer to the surface, it creates a damp area. As a result, a dowel with a plastic head is used beneath the facade’s plastering systems.

It is advised to abide by several guidelines in order to guarantee the quality of thermal insulation:

• It is impossible to form continuous longitudinal joints between several rows;
• The seams of neighboring plates must be blocked;
• The inner side of the plate is pressed by force to the base of the wall, and the edge of the insulation is pressed to the edge of the adjacent plate;
• The glue protruding between the seams must be immediately removed with a rag.

The device of the plaster layer

It is done to install the reinforcing mesh initially. The film is used to cover windows and doors to prevent damage. It is imperative to ensure that every hook is positioned at a minimum of 30 degrees. It is advised to pull the grid so that the vertical sections match the roll’s width, which is rotating from top to bottom. A minimum of 50 mm should be present on the strip.

There is a locking hairpin to secure the grid. can be fixed by putting two fixing plates from above on top of each hook. It is impossible to press the plates in a way that prevents the facade’s thermal insulation from deforming, especially with gas-filled polyurethane foam. In order to incorporate the mesh into the first layer of plaster, plastic gaskets are fastened between the mesh and the insulating surface.

Basic plaster layer

The framework supporting the entire system of wet facade insulation will be replaced by the first layer reinforced with a net. 15–20 kg/m³ of solution are used. The dry mixture is kneaded in accordance with the manufacturer’s instructions. Using a specialized pump or spatula, the solution is applied, pressing the mesh to the inner layer intermittently.

If there are bulges or other deformities in the grid that affect the solution, you will need to make the necessary corrections and use a special nail to fix the affected area. It is preferable to implement the solution top down in order to reduce the number of these mishaps. Everywhere on the wall’s surface should have the same thickness for the first layer.

Sustaining ideal wall surface moisture levels is advised following the application of the foundational plaster layer. The plastered area will need to be moisturized in dry weather with high temperatures.

In our guide to stucco facades for insulation, we look at a flexible and practical way to improve the visual appeal and energy efficiency of your house. This article delves into the advantages of stucco as a facade material, describing its ability to insulate and how it can change the appearance of your home. Having a solid understanding of this ubiquitous technology can help you make well-informed decisions when designing a new home or remodeling an existing one, making your living area more fashionable and comfortable.

How to apply a leveling layer

The next ball of plaster mixture is applied so that the facade plaster on the insulation has a beautiful view. The goal is to smooth out any imperfections in the working surface so that the finishing coating can be applied flawlessly. The amount of solution consumed is 15–20 kg/m^. First, liberally moisten the work surface. If physical labor is required, applying the second layer with a strong pump or regular spatula is also permitted.

Since the three-layer system will require at least 25 mm, the ball’s thickness is formed by approximately 10–12 mm. The lighthouses’ marks function as a reference point for leveling the applied solution. Excesses are gathered in a container so that additional finishing work can be done with them. It’s advised to moisturize in the second layer during the summer.

Grinding and deformation seams

The solution is allowed to freeze somewhat before being ground. Depending on the weather, several hours of labor are required after applying the leveling layer. The instrument is a polyurethane-coated construction grater.

Following the process of hardening, longitudinal and transverse seams form as the structure is cut out. In areas where the structural elements are vulnerable to damage, the deformation seam helps to lessen the load on them. Earthquakes, soil precipitation, and other physical and natural factors can all pose a risk to construction. With the use of a specialized tool, the wall is cut into conditional blocks that provide the structure flexibility. Mastic or another insulating material is stuffed into the seams.

There is a maximum of 15 meters between each cut, and the seam has a width of 6 mm. From top to bottom, the extreme seam is made no closer than 150 mm from the house’s corner. All layers, including the grid, should be cut through by the cutting disk.

How to apply a decorative layer

The upper layer of the wet facade device, which serves as both a design element and a wind and rain shield, is where the insulation device ends.

Mineral mixtures, which have a high breathability, are used by insulation to form the top layer of plaster.

Prior to implementing the solution, you must determine whether the prior ball was sound. Five days should elapse after the alignment layer is applied.

First, the surface is thoroughly treated with a tinting primer, for example, overnight, and then a solution is applied in about 12 hours.

A thin layer of decorative plaster is applied, and it is rubbed in circular motions. The same grater is used for the entire process. Bark beetle plaster can be applied differently using gypsum or acrylic. For home use, the plaster mixture is suggested because it is simpler to apply. Specialists frequently use acrylic solution because it calls for specific work skills and application experience.

Stucco facades with insulation provide a flexible way to improve a building’s visual appeal and energy efficiency as well. This method not only makes a house look better, but it also greatly enhances its thermal performance, increasing comfort and lowering maintenance costs.

The weather-resistant and long-lasting stucco acts as a barrier to safeguard the building envelope. In conjunction with insulating materials like mineral wool or foam boards, it forms a barrier that lessens heat transfer between the house’s exterior and interior. This insulation capacity lessens the need for excessive heating or cooling by assisting in the maintenance of consistent indoor temperatures throughout the year.

The ability of stucco facades with insulation to adapt to various architectural styles and environmental conditions is one of its main advantages. This technique gives the outside of the building a unique texture and finish while effectively regulating temperature in both hot and cold climates. Because of its adaptability, both architects and homeowners favor it.

Furthermore, stucco facades are renowned for being long-lasting and requiring little upkeep. Compared to other exterior finishes, stucco requires less maintenance after it is applied. It guarantees a long-lasting and eye-catching facade by fending off fading, cracking, and moisture penetration.

Video on the topic

Plaster without insulation of facades of aerated concrete house D300, lime-cement plaster Baumit