Prior to plastering, selecting the appropriate heater for your facade is essential for comfort and energy efficiency in your house. With so many options at your disposal, choosing wisely can have a big impact on your building’s thermal performance. You will be guided through the important factors to take into account when choosing a facade heater for plastering by this guide.
It’s crucial to first comprehend the various kinds of insulating materials that are out there. Mineral wool, extruded polystyrene (XPS), and expanded polystyrene (EPS) are common options. Every material has special qualities, advantages, and possible disadvantages of its own. For example, EPS is less expensive and lighter than XPS, but XPS is more resistant to moisture. Conversely, mineral wool offers superior sound absorption and fire resistance.
The insulating material’s thermal conductivity is another important consideration. Improved insulation with reduced thermal conductivity helps keep your house cool in the summer and warm in the winter. You can determine the material’s insulating power by looking up its R-value, which gauges its resistance to heat flow.
Take into account the installation procedure as well as how well it works with the particular building structure you have. While some materials might need special handling or adhesives, others are simpler to cut and fit around intricate shapes and details. It’s critical to select insulation that works well and blends in perfectly with your building techniques.
Finally, consider the insulation’s long-term durability and maintenance requirements. Because facade heaters are exposed to the elements, it is critical to choose a material that is durable enough to withstand variations in weather and potential physical impact. Maintaining the effectiveness of the insulation over time will help you keep your building energy efficient and lessen the need for regular replacements or repairs.
You can select the ideal heater for your facade and ensure a cozy and energy-efficient house by carefully weighing these factors. The appropriate insulation can have a big impact on cost savings and performance whether you’re building a new home or remodeling an old one.
- Why insulate the walls of the facade of the house
- The most popular facade insulation materials for houses under plaster
- Expanded polystyrene (foam plastic)
- Mineral wool
- Ecowool
- Polyurethane foam
- Penoplex, EPS
- Foam glass
- Penoizol
- Sprayed thermal insulation materials
- What type of insulation is better and optimal for plastering external facade walls
- How to calculate the thickness of insulation for walls under plaster
- Insulation installation for exterior finishing of a house
- Preparation of materials for thermal insulation
- Preparing external walls for installation of insulation
- Installation of insulation on the facade of a house
- Reinforcement
- Types of plaster on insulation
- Video on the topic
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Why insulate the walls of the facade of the house
- efficient heat retention in the room;
- energy saving;
- protection of wall panels from dampness and deformation;
- increase in the service life of the building;
- decorative finishing of the facade.
The most popular facade insulation materials for houses under plaster
- foam;
- mineral wool;
- ecowool;
- polyurethane foam;
- penoplex;
- foam glass;
- penoizol, etc..
The technical properties, methods of fixing, intended use (interior or facade decoration), usage temperature conditions, and compatibility with wall panel compositions vary amongst materials.
Expanded polystyrene (foam plastic)
Is an insulator placed beneath plaster, which is created by applying various techniques to polystyrene.
Granules of polystyrene are treated with water vapor to create expanded polystyrene. Granulated materials combine to form thick sheets or slabs with varying pore diameters. Before being used, foam plastic slabs are pressed to the surface after being covered with an adhesive mixture.
- low weight will not allow overloading the walls;
- retain heat well;
- easy to cut and level;
- resistant to mold, fungus;
- inexpensive.
The low vapor permeability must be considered when using, though, so the construction plan will need to include the ventilation system’s configuration. When heated, the material may release harmful substances, making it not fire-resistant. Slabs made of expanded polystyrene have a low mechanical strength. There is no use of solvents in the processing.
Mineral wool
You can use mineral wool as insulation in your home. Molten rocks are used to make insulation with a fibrous structure, and at temperatures as high as 1500°C, fibers are formed from these rocks. Water-repellent materials, binders, and plasticizers are added to the mixture.
The final product is cut into sheets that are used for insulation of interior spaces and plaster facades, either in the form of slabs or tapes. Mineral wool grades PZh 125 and PZh 200 are used to complete the building. Because of its low rigidity, materials with densities lower than 110–120 kg/m³ are not used as insulation for exterior walls.
Up to 90% of stone particles make up basalt insulation, which is strong, long-lasting, vapor-permeable, resistant to rot, and solvent-resistant. Mineral wool slabs are simple to install and cut, and they can be worked on year-round.
Nonetheless, one must consider that the minauta is unstable when wet, so the insulating material needs to be properly sealed off from moisture.
Ecowool
Seldom is this product utilized beneath facade plastering as insulation. It is appropriate for some interior spaces, though. Secondary raw materials and waste from the production of paper are recycled to create the material. Ecowool is made up of antiseptic materials, fire retardants, and cellulose fibers.
- high thermal insulation characteristics;
- the boards retain their shape well;
- high air permeability;
- the coating becomes monolithic, cold bridges are excluded;
- low cost.
When employing ecowool, a labor-intensive process of laying the material necessitates a complex application technology (with the use of equipment), and dust formation occurs during installation work.
Polyurethane foam
The insulation offers excellent sound and heat insulation and has a foamy structure. Applying the mass is done by spraying. The product is used to insulate pipes, concrete, wood, brick, corrugated sheets, and other types of structures. The insulation can last up to thirty years. The mixture is applied to both public and residential structures. High-quality, seamless coating of the joints between slabs is provided by the insulation.
Penoplex, EPS
Used to insulate basement structures and facades covered in plaster. Polystyrene is heated until it melts, at which point it is treated with steam to produce penoplex. The material can be identified by its tiny pores.
Penoplex has the advantages of strength, high density, and resistance to moisture. The material can also be used to insulate rooms and hallways from the inside.
Penoplex is robust and simple to process. It is crucial to consider the material’s low fire resistance, high cost, and vulnerability to deterioration in direct sunlight.
Foam glass
Produced in the process of foaming a mixture of stone particles and glass. Manufacturers have developed several types of material differing in composition. Blocks with a strong structure or with through pores, vapor-permeable elements are produced. The cost of materials is affordable.
Penoizol
This foam plastic variation serves as insulation beneath the plaster on the facade. Urea resin is foamed and polymerized to create raw materials. The material’s long-term shape retention, fire resistance, and low heat conductivity are its advantages.
Because the plaster’s underlying insulation is vapor-permeable, processing facade structures is advised. The composition can be used to insulate interior partitions due to its high rates of noise insulation. Penoizol is appropriate for work involving restoration and repair. The pricey nature is a drawback.
Sprayed thermal insulation materials
Necessitate using specialized equipment to insulate ceilings and walls. First, dust must be removed from the surface and joints, and any outdated finishing materials must be removed. Professional craftsmen use the technology of sprayed thermal insulation materials for facade structures; it is not for the faint of heart.
What type of insulation is better and optimal for plastering external facade walls
- the configuration of the slabs, blocks should be convenient for installation;
- the material should be rigid for comfortable installation without specialized equipment;
- thermal insulation characteristics should be at a good level;
- affordable cost;
- for facades, the weight of the slabs is important, which should not overload the wall panels;
- low flammability and water absorption are mandatory;
- the composition must be environmentally friendly for safe operation.
- high vapor barrier properties are required.
Stone wool and foam plastic are high-quality, all-purpose materials that offer excellent safety and thermal insulation.
The slabs can be installed manually, come in a variety of thicknesses and structures, and can be completed by novice builders. By considering the local climate, you can calculate the density of insulation that will be required.
- very light (foam or penoizol);
- light (mineral wool);
- medium density;
- rigid.
You can decide what kind of insulation to use for the walls by considering the local climate. Dense materials with low heat conductivity are chosen for cold climate areas. Low-density compositions are advised for use in the middle zone regions. Adjusting the layer thickness is the best way to control the density and thermal conductivity.
How to calculate the thickness of insulation for walls under plaster
- thickness of wall panels;
- difference in temperature conditions inside and outside the house;
- thermal conductivity index of the material.
The thickness of the insulating composition and the total resistance level of all wall layers are computed using specific formulas. For calculation tasks, experts advise using online calculators on specialized websites.
Insulation installation for exterior finishing of a house
When the weather is calm, installation work on priming insulated walls for facade plastering can be done at +5–+30°̡. The work area is partially shaded from direct sunlight, and there shouldn’t be any rain or snow. It is advised that novice construction workers use mineral wool or polystyrene foam, which are both simple to install.
- leveling plaster layer;
- insulation;
- reinforcing mesh;
- top layer of plaster mixture;
- decorative finishing.
- wall panels are prepared for installation work;
- fixation of thermal insulation boards is performed;
- solution preparation;
- reinforcement of surfaces;
- priming of the reinforced layer;
- finishing work.
Preparation of materials for thermal insulation
Building material purchases should be made with a small reserve, according to experts.
- adhesive composition for fixing the insulation;
- primer suitable for walls and reinforced layer;
- insulation;
- reinforcing fabric (metal or glass fibers);
- plaster compositions (basic and for decorative finishing);
- tools for installation work (trowel, spatulas, brushes, etc.d.);
- fastening corners with mesh in the side parts;
- Guide profile for the base part (U-shaped);
- dowel-fungi, corresponding in length to the slabs of the insulating material.
As directed by the manufacturer, adhesive and plaster compositions are diluted with water prior to use.
Preparing external walls for installation of insulation
- old plaster compounds and paint are cleaned off, whitewash is washed off;
- surfaces are inspected and tapped;
- the protrusions are cleaned off;
- traces of rust, mold, grease stains are removed with special means;
- excess hardware is removed, electrical wiring is hidden in grooves;
- seams and grooves are covered with foam glue;
- cracks and depressions are sealed with putty;
- dust from the surface is cleaned;
- if necessary, the surfaces are leveled (primed, plastered);
- frames and window blocks are covered with film;
- primer is applied and dried.
Scaffolding is installed for wall insulation work, enabling high-quality material fixation. Slab cutting and solution preparation have their own designated space. Surfaces of walls are marked. Subsequently, the base profile is installed up to 60 centimeters below the soil’s surface.
Installation of insulation on the facade of a house
- first, insulating boards or sheets are coated with an adhesive base, the composition is applied at a distance of 2-3 cm from the edge of the plate;
- the first row of slabs is applied starting from the end of the building, the materials are pressed to the base and leveled;
- the glue should be distributed evenly, the remaining mass should be cleaned off with a spatula;
- the plates are joined to each other, the ends are moved tightly;
- if there are gaps between the plates, the cracks are filled with parts of the insulation;
- Before the glue dries, the placement of the slabs can be adjusted;
- adjustment is carried out using a rule or a bar;
- The insulation sheets are dried for 3 days;
- then additional fixation of the plates is performed using dowels, each sheet is pressed at 5 points.
Reinforcement
Plaster, primer, and reinforcing mesh are used in the process. Plaster mortar needs to be applied after the insulation has been primed and allowed to dry. Using a spatula, make marks on the surface and straighten the reinforcing mesh. The mesh is pressed into the solution using a spatula.
Gaps and butt-joint positioning of the sheets during mesh installation are prohibited. On top of the preceding layer, the reinforcing mesh is applied with a maximum 10-cm overlap. Profile corners are used to reinforce corner sections. With reinforcement, you can fortify the base and shield the insulating material from precipitation caused by the weather.
Types of plaster on insulation
Insulated panel facades are finished with decorative plastering. The coating has protective qualities for insulating boards in addition to these uses. The regional weather and compatibility with wall panels are taken into consideration when selecting the plastering material.
– stands out for its elasticity, adaptability, and resistance to UV light. It can be used with various kinds of bases. The product has a high price tag. The longest-lasting silicone plaster is applied as a mass onto a tiny-cell metal mesh.
Aspect | Details |
Material | Choose insulation materials like EPS (Expanded Polystyrene), XPS (Extruded Polystyrene), or mineral wool for good thermal efficiency. |
Thickness | Select a thickness that provides adequate insulation, usually between 50mm to 100mm, depending on your climate zone. |
Water Resistance | Ensure the insulation is water-resistant to prevent moisture problems; XPS and EPS have good water resistance. |
Fire Resistance | Consider fire-resistant options like mineral wool for enhanced safety. |
Cost | Balance cost with performance; EPS is typically cheaper, while mineral wool offers superior performance but at a higher cost. |
Durability | Opt for durable materials that can withstand environmental stress without degrading quickly. |
Installation | Choose materials that are easy to install and compatible with your existing wall structure. |
A heater for your plaster facade should take cost, durability, and insulation qualities into consideration. Choose a material that best fits your climate and budget from options such as mineral wool, polystyrene, and polyurethane foam. Each of these materials has unique advantages. While polystyrene is more affordable and simpler to install, mineral wool offers superior thermal and sound insulation. Although it costs more, polyurethane foam provides better insulation than other options.
Also take into account the installation procedure. Certain materials can save time and labor costs because they are simpler to work with. For instance, polystyrene boards are a popular option for do-it-yourselfers because they are lightweight and simple to cut. On the other hand, to achieve maximum effectiveness, mineral wool needs to be installed and handled carefully.
Remember to consider the possible downsides as well as the long-term advantages. Better insulation can save a lot of money on heating and cooling costs over time, even though the initial cost is still a big consideration. Better insulation is also a wise investment because it can improve your home’s overall comfort and energy efficiency.
Finally, if you’re not sure which material to choose, always get professional advice. They can offer insightful information based on the climate in your area and your particular needs. Making a well-informed choice now will guarantee that your facade functions well for many years to come in addition to looking fantastic.
For a plastered facade, picking the appropriate heater is essential to keeping your house warm and energy-efficient. The best insulating material should be weather-resistant, work well with plaster, and have outstanding thermal performance. The choice is heavily influenced by elements including installation ease, insulation type, and thickness. Choosing the best option to lower energy costs and maintain comfort in your home will be easier if you are aware of these factors.