Prefabricated balconies

prefabricated balconies

Prefabricated bal conies are prefabricated reinforced concrete slabs produced from C30/37 grade concrete, which are complete balcony elements for multi-family and commercial buildings. They are manufactured as cantilevered or self-supporting slabs with dimensions of 1.2-2.0 m wide and 2.5-5.0 m long, 16-20 cm thick, with a system of thermal connectors to eliminate thermal bridges. They are used in modern housing construction as a fast and precise solution to ensure high quality and durability of balcony structures.

For each project prefabricated balconies price is calculated individually, taking into account the dimensions, type of construction and number of elements. We guarantee competitive rates while maintaining the highest quality precast reinforced concrete. We invite you to get a free quote tailored to your investment.

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Prefabricated balconies – high-quality reinforced concrete balcony slabs

Prefabricated bal conies are a modern construction solution that eliminates the disadvantages of balconies poured on site. They are manufactured from high-strength C30/37 or C35/45 concrete under controlled factory conditions. Prefabrication technology ensures perfect geometry, smooth surface and precise execution of every detail. A prefabricated balcony is characterized by a monolithic structure with integrated water drainage elements.

The structure of prefabricated balconies is designed as a reinforced concrete slab reinforced with two-way reinforcement. Main reinforcement made of RB500W ϕ12-16 mm steel spaced at 10-15 cm intervals. The reinforcement cover of 30 mm from the top and 25 mm from the bottom ensures durability. Next, prefabricated balconies have edge and contraction reinforcement.

The system of connecting prefabricated balconies to the building eliminates thermal bridges. Thermal insulation connectors of the Isokorb type or similar with stainless steel bars are used. An 80-120 mm thick thermal insulation interlayer breaks the thermal bridge. In addition, the prefabricated balcony can be made as an attached or cantilevered element.

The geometry of the prefabricated balcony ensures proper drainage. Transverse slope of 1,5-2% made in the factory towards the outer edge. A 3×5 cm dripline on the edge prevents staining of the facade. In addition, prefabricated balconies can have drainage inlets or gutters.

Surface finish of prefabricated balconies available in different variants. Top surface smoothed smooth, prepared for ceramic cladding. Possibility of anti-slip texture or grooving. However, a prefabricated balcony can also have a resin coating or quartz sprinkling.

Accessories for prefabricated balconies increase functionality. Integrated anchors for installation of balustrades according to the project. Technological openings for draining condensation water. Above all, prefabricated bal conies can be equipped with decorative elements or attics.

Key advantages of prefabricated balconies

Prefabricated balconies – eliminating thermal bridges

Prefabricated balconies with thermal insulation connectors completely break the thermal bridge. The Isokorb or similar system reduces heat loss by 80-90% relative to a traditional joint. The heat transfer coefficient at the joint Ψ ≤ 0.20 W/mK. Eliminates the risk of condensation and mold in apartments next to the balcony. Heating savings of 5-10% for the entire building.

Instant assembly of finished components

Installation of prefabricated balconies takes 20-30 minutes per element. A prefabricated balcony delivered as a finished product does not require formwork. Elimination of concreting and setting time speeds up construction by 3-4 weeks. In addition, the possibility of installation in all weather conditions. Immediate full load-bearing capacity after installation.

Perfect workmanship

Prefabricated balconies manufactured in halls provide tolerances of ±3 mm. The perfectly smooth surface does not require leveling before laying the floor. The prefabricated balcony has precise slopes and properly executed drips. Subsequently, there are no flares, cracks or irregularities typical of on-site concreting. Quality unattainable with traditional methods.

Prefabricated balconies – durability for decades

Precast balcony made of C35/45 concrete guarantees a minimum of 50 years of trouble-free service. Exposure class XC4, XF4 ensures resistance to frost and salt. Precast balconies do not require repairs for the first 25-30 years. In addition, the thick lagging protects the reinforcement from corrosion. Invest in a maintenance-free solution.

Reduction in total costs

Despite the higher initial price, prefabricated balconies are cheaper over their life cycle. Elimination of system formwork saves 30-40% of labor costs. A prefabricated balcony does not generate material losses on site. In addition, the absence of thermal bridges reduces heating costs. Return on investment within 5-7 years of operation.

Architectural uniformity of the facade

Prefabricated bal conies provide an identical appearance for all balconies on the facade. Repeatability of dimensions and details creates a harmonious composition. Prefabricated balcony eliminates execution errors spoiling aesthetics. However, the possibility of individual design of shapes. Increase the value of the property through quality workmanship.

Prefabricated balconies – structural safety

Prefabricated balcony factory tested for a load of 5.0 kN/m². Quality control of each element before delivery to the construction site. Prefabricated balconies have certificates and static calculations. Then eliminating the risk of construction errors. System proven in thousands of implementations.

Opportunities for individualization

The system of prefabricated balconies allows any shape and size. Straight balconies, arched balconies, corner balconies according to architectural design. Prefabricated balcony can have integrated flower pots or seats. In addition, a variety of finishes and surface textures. Design flexibility while maintaining the advantages of prefabrication.

The use of prefabricated balconies in construction

Prefabricated balconies are primarily used in multi-family housing. They are used in apartment blocks and apartment buildings from 4 to 25 stories. Prefabricated balcony used as a standard solution by major developers. In addition, ideal for energy-efficient and passive buildings due to the elimination of bridges. The system dominates in modern housing developments.

Hotels and tourist facilities massively use prefabricated balconies for guests. The prefabricated balcony ensures uniformity in the standard of all rooms. Quick installation reduces hotel construction time by several weeks. Then durability and maintenance-free valued in commercial facilities. A solution for hotels of any category from economy to luxury.

Office buildings use prefabricated balcony as terraces for employees. Prefabricated balconies in office buildings serve as recreational spaces. Large terraces on upper floors are possible. Also used as technical and evacuation balconies. The system complies with the requirements for high-rise buildings.

Single-family houses are increasingly using prefabricated balconies. Prefabricated balcony over the garage or as a floor terrace. Ideal for houses built with a prefabricated system. However, also in traditional construction for saving time. Quality guarantee not available when poured on site.

Retrofits of old buildings use prefabricated balcony as an addition. Prefabricated balconies on their own supporting structure do not weigh down the building. The possibility of adding balconies to large slab blocks. Above all, improving the standard of housing and property values. A system proven in thermal modernization programs.

Technical parameters of prefabricated balconies

Standard dimensions of prefabricated balconies:
– Width (depth of extension): 120, 140, 160, 180, 200 cm
– Length: 250, 300, 350, 400, 450, 500 cm
– Slab thickness: 16, 18, 20 cm (depending on the overhang)
– Attic/edge height: 8-12 cm
– Dimensional tolerances: ±5 mm
– Balcony area: 3-10 m²

Structural parameters of prefabricated balcony:
– Class of concrete: C30/37, C35/45
– Exposure class: XC4, XF4, XD1
– Reinforcement steel: RB500W, BSt500S
– Reinforcement grade: 120-180 kg/m³
– Reinforcement cover: top 30 mm, bottom 25 mm
– Service load: 4.0-5.0 kN/m²

Prefabricated balcony thermal connection system:
– Fastener type: Isokorb or equivalent
– Thermal insulation thickness: 80-120 mm
– Coefficient Ψ: ≤ 0.20 W/mK
– Load-bearing bars: stainless steel 1.4301
– Load-bearing capacity of connectors: adapted to the loads
– Temperature on the inner surface: θsi ≥ 12.6°C

Performance parameters of prefabricated balcony:
– Transverse slope: 1,5-2,0%
– Surface roughness: R11-R13 (anti-slip)
– Water resistance: W8
– Frost resistance: F200
– Water absorption: ≤ 5%
– Abrasion resistance: class 4

Weight of prefabricated balconies:
– Balcony 120x300x18 cm: about 1600 kg
– Balcony 140x350x18 cm: about 2200 kg
– Balcony 160x400x20 cm: about 3200 kg
– Balcony 180x450x20 cm: about 4000 kg
– Balcony 200x500x20 cm: about 5000 kg
– Density of reinforced concrete: 2500 kg/m³

Installation of prefabricated balconies – instructions for implementation

Preparation of the installation site for prefabricated balconies begins at the shell stage. Reinforcement splines or anchors are made in the ceiling according to the design. The accuracy of embedding thermal connectors ±5 mm from the axis. Then the surface of the ceiling leveled and cleaned before installation. Geodetic control of the level and vertical of the place of embedment of the balcony.

Transporting and lifting a prefabricated balcony requires a crane with adequate capacity. Elements of 2-5 tons require a minimum 25-ton crane. Prefabricated balcony hooked up by 4 attachment points in the slab. In addition, traverse beams used for even distribution of forces. Vertical transport while maintaining the horizontal position of the slab.

Embedding of prefabricated balconies performed with millimeter precision. Balcony lowered slowly onto prepared thermal connectors. Joining the reinforcing bars by welding or mechanical bonding. Then leveling the prefabricated balcony with steel shims. Checking the slopes and position in relation to the facade.

Implementation of the connection of the prefabricated balcony with the ceiling. The space between the balcony and the ceiling filled with low-shrinkage mortar. Concreting the junction with C30/37 concrete with compaction. In addition, the installation of thermal insulation spacer exactly without gaps. Sealing the joint with polyurethane foam and tapes.

Finish the surface of prefabricated balconies after installation. Making a slope layer if it was not factory-made. Laying waterproofing – tar paper or liquid film. However, the installation of the pressure layer and ceramic cladding. Perimeter expansion joints filled with permanently elastic compound.

Installation of prefabricated balcony equipment according to the project. Embedding the balustrade posts in chemical or mechanical anchors. Execution of flashings and external parapets. First of all, checking the patency of water drains. Technical acceptance with inspection of all parameters.

Prefabricated balconies price – current price list 2024/2025

Prefabricated balconies price varies depending on the dimensions, type of construction and degree of finishing. Prefabricated balconies price takes into account the cost of materials, production and thermal insulation system. Balcony prefabricated price per m² area is the basis of calculation for developers. Balconies prefabricated price increases with the overhang and the required load-bearing capacity. In addition, prefabricated balconies price includes the cost of design and certification.

Prefabricated balconies price – calculation by area

Prefabricated balcony price for an area of 3-4 m² is the basic option. Prefabricated balconies price of 5-6 m² area higher by 30-40% proportionally. Prefabricated balconies price of large terraces 8-10 m² increases non-linearly by 60-80%. Prefabricated balcony price per m² decreases as the area increases. Then prefabricated balconies price takes into account the thickness of the slab for larger overhangs.

Prefabricated balconies price list 2024 – current rates

Balcony prefabricated price list in 2024 stabilized after the increases of the pandemic period. Balconies prefabricated price 2024 increased by 5-7% relative to the end of 2023. Balcony prefabricated price is effective from January 2024 for standard dimensions. Balcony prefabricated price quoted per unit or m² of floor space. However, balconies prefabricated price may include discounts for orders of entire buildings.

Thermal insulation system – prefabricated balconies fastener price

Prefabricated balcony price with basic steel fasteners cheapest. Prefabricated balconies price with Isokorb system 20-25% higher per element. Prefabricated balconies price with premium stainless fasteners plus 30-35%. Balcony prefabricated thermal insulation price pays for itself through energy savings. In addition, balconies prefabricated price includes the cost of thermal calculations.

Comprehensive delivery – prefabricated balconies price with installation

Prefabricated balcony price of the element itself is 60-70% of the total cost. Balconies prefabricated price with transportation and installation higher by 30-40%. Balconies prefabricated price can include finishing and balustrade. Prefabricated balcony turnkey price simplifies settlement with the contractor. In addition, prefabricated balconies turnkey price includes warranty.

Prefabricated balconies price 2025 – forecast of changes

Balcony prefabricated price in 2025 projected with an increase of 4-6% year-on-year. Balconies prefabricated price list 2025 will take into account increasing energy requirements. Balconies prefabricated price may increase by more expensive thermal insulation systems. Balcony prefabricated price in 2025 will depend on the boom in housing construction. Above all, prefabricated balconies price will remain competitive with poured balconies.

Finishing options – prefabricated balconies option price

Prefabricated balconies basic price is for smoothly trowelled concrete. Prefabricated balcony price with non-slip texture plus 5-8% per m². Prefabricated balconies price with finished resin flooring 15-20% higher. Prefabricated balcony price with stoneware tiles increases by 25-30%. However, balconies prefabricated price of each finish increases the value of apartments.

Prefabricated balconies final price calculated according to the architectural design. Prefabricated balcony price includes selection of optimal dimensions and construction. Balconies prefabricated price includes static and thermal calculations. Balcony prefabricated price guarantees a complete balcony solution. Ultimately, prefabricated balconies price is an investment in the quality and energy efficiency of the building.

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prefabricated balconies price

Here are just some of our implementations of prefabricated balconies. This list includes only major investments on which our prefabricated products have appeared.

What are ?

Precast concrete units are prefabricated building components produced off-site that can be assembled into larger structures at the project site. These are standard, repetitive modules produced in series at industrial plants, which greatly speed up and facilitate construction work in various construction sectors.

What are the types of ?

Reinforced concrete. prestressed concrete, post-tensioned concrete – 20+ types

What is the use of ?

Rapid modular construction of various structures

What are the properties of the ?

Repeatability, precision, speed of installation, durability

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