Energy-Performance / Construction Systems

The basic construction system for building nearly zero-energy buildings. It offers excellent utilisation of space and good insulation.

The Standard construction system consists of a basic load-bearing construction, which is insulated with a 140mm of facade insulation. All Rihter construction systems have load-bearing boards lined on both sides of the load-bearing construction. This greatly increases the seismic stability of the structure. Lining the load-bearing construction on both sides ensures increased stability and rigidity of your house in case of an earthquake.

Construction system

Standard

Technical details

  1. Fire-resistant plasterboard (GKF): 12.5 mm
  2. Fibreboard: 15 mm
  3. Vapour barrier: 0.2 mm
  4. Thermal and sound insulation (rock wool, λ = 0.038 W/m2K) between load-bearing construction: 120 mm
  5. Wooden load-bearing construction: 120 mm
  6. Fibreboard: 15 mm
  7. Thermal and sound insulation (styrofoam EPS λ = 0.039 W/m2K): 140 mm
  8. Reinforced mortar and grid: 4 mm
  9. Exterior façade layer: 2 mm

THICKNESS: 313 mm
THERMAL INSULATION: 0.15 W/(m2K)
SOUND INSULATION: Rw ≥ 45 dB
FIRE RESISTANCE: REI 60 min
PHASE DELAY: +8 h

The Standard+ system is the upgrade of the Standard system with an even higher level of thermal insulation and comfort of living. This static, incredibly stable system provides excellent fire safety and noise protection, in addition to seismic safety and a pleasant living climate.

Construction system

Standard+

Technical details

  1. Fire-resistant plasterboard (GKF): 12.5 mm
  2. Fibreboard: 15 mm
  3. Vapour barrier: 0.2 mm
  4. Thermal and sound insulation (rock wool, λ = 0.038 W/m2K) between load-bearing construction: 160 mm
  5. Wooden load-bearing construction: 160 mm
  6. Fibreboard: 15 mm
  7. Thermal and sound insulation (styrofoam EPS with improved thermal insulation λ = 0.032 W/m2K): 140 mm
  8. Reinforced mortar and grid: 4 mm
  9. Exterior façade layer: 2 mm

THICKNESS: 353 mm
THERMAL INSULATION: 0.12 W/(m2K)
SOUND INSULATION: Rw ≥ 45 dB
FIRE RESISTANCE: REI 60 min
PHASE DELAY: +8 h

This enables the construction of a diffusion-open system, which together with highly-insulating materials provides the highest level of energy-efficiency and comfort of living.

The load-bearing construction is lined on both sides with load-bearing boards, which ensure increased stability, while special implementation of the installation plane prevents breaking at joints between corners. The 60mm installation plane is intended to help facilitate the installation without disturbing the airtight envelope of the house.

Due to the built-in rock wool at a total thickness of 310mm, this system provides great noise protection and fire safety.

We recommend this system to all our customers, as it has the best quality to price ratio.

Construction system

Optimal

Technical details

  1. Fire-resistant plasterboard (GKF): 15 mm
  2. Wood sub construction installation level: 60 mm
  3. Thermal and sound insulation (rock wool, λ = 0.038 W/m2K) at installation level: 50 mm
  4. OSB board with glued connections: 15 mm
  5. Thermal and sound insulation (rock wool, λ = 0.035 W/m2K) between load-bearing construction: 120 mm
  6. Wooden load-bearing construction: 120 mm
  7. Fibreboard: 15 mm
  8. Thermal and sound insulation (rock wool, strip λ = 0.040 W/m2K): 140 mm
  9. Reinforced mortar and grid: 4 mm
  10. Vapour permeability exterior façade layer: 2 mm

THICKNESS: 375 mm
THERMAL INSULATION: 0.12 W/(m2K)
SOUND INSULATION: Rw ≥ 49 dB
FIRE RESISTANCE: REI 60 min
PHASE DELAY: +10 h

The Optimal+ system is the upgrade of the Optimal system with thicker construction of the exterior walls and thicker thermal insulation of the roof. In most cases, we meet the standards of passive construction with this system, if the proper construction of the builders’ joinery and the orientation on the plot is ensured. When choosing this system, you may also obtain non-repayable grants from the Environmental Fund in accordance with the currently applicable terms.

Construction system

Optimal+

Technical details

  1. Fire-resistant plasterboard (GKF): 15 mm
  2. Wood sub construction installation level: 60 mm
  3. Thermal and sound insulation (rock wool, λ = 0.038 W/m2K) at installation level: 50 mm
  4. OSB board with glued connections: 15 mm
  5. Thermal and sound insulation (rock wool, λ = 0.035 W/m2K) between load-bearing construction: 160 mm
  6. Wooden load-bearing construction: 160 mm
  7. Fibreboard: 15 mm
  8. Thermal and sound insulation (rock wool, strip λ = 0.040 W/m2K): 140 mm
  9. Reinforced mortar and grid: 4 mm
  10. Vapour permeability exterior façade layer: 2 mm

THICKNESS: 415 mm
THERMAL INSULATION: 0.11 W/(m2K)
SOUND INSULATION: Rw ≥ 50 dB
FIRE RESISTANCE: REI 60 min
PHASE DELAY: +11 h

The certificate awarded by the Passivhaus Institute attests that all Rihter houses built in this system are technologically perfected and comply with the highest energy standards.

We recommend this system to everyone who wishes to build a high quality passive house, which generates as low costs as possible.

Construction system

Passiv

Technical details

  1. Fire-resistant plasterboard (GKF): 15 mm
  2. Wood sub construction installation level: 60 mm
  3. Thermal and sound insulation (rock wool, λ = 0.038 W/m2K) at installation level: 50 mm
  4. OSB board with glued connections: 15 mm
  5. Thermal and sound insulation (rock wool, λ = 0.035 W/m2K) between load-bearing construction: 160 mm
  6. Wooden load-bearing construction: 160 mm
  7. Fibreboard: 15 mm
  8. Thermal and sound insulation (rock wool, strip λ = 0.035 W/m2K): 200 mm
  9. Reinforced mortar and grid: 4 mm
  10. Vapour permeability exterior façade layer: 2 mm

THICKNESS: 475 mm
THERMAL INSULATION: 0.09 W/(m2K)
SOUND INSULATION: Rw ≥ 52 dB
FIRE RESISTANCE: REI 60 min
PHASE DELAY: +12 h

A fully natural system with built-in natural wood fibre materials.

The thermal insulation at a total thickness of 380mm ensures excellent insulation, minimum costs and a healthy living environment.

The 60mm thick installation plane is intended to help facilitate the installation, without disturbing the airtight envelope of the house.

Excellent thermal insulation and vapour permeability of walls, roof and ceilings.

Construction system

Natura

Technical details

  1. Fire-resistant plasterboard (GKF): 15 mm
  2. Wood sub construction installation level: 60 mm
  3. Thermal and sound insulation (wooden fibers, λ = 0.038 W/m2K) at installation level: 40 mm
  4. OSB board with glued connections: : 15 mm
  5. Thermal and sound insulation (wooden fibers, λ = 0.038 W/m2K) between load-bearing construction:: 220 mm
  6. Wooden load-bearing construction: 220 mm
  7. Fibreboard: 15 mm
  8. Thermal and sound insulation (wooden fibers, λ = 0.038 W/m2K): 60 mm
  9. Wooden subconstruction: 60 mm
  10. Facade wood fiber board (λ = 0.046 W/m2K): 60 mm
  11. Reinforced mortar and grid: 4 mm
  12. Vapour permeability exterior façade layer: 2 mm

THICKNESS: 453 mm
THERMAL INSULATION: 0.11 W/(m2K)
SOUND INSULATION: Rw ≥ 51 dB
FIRE RESISTANCE: REI 60 min
PHASE DELAY: +16 h

The load-bearing construction (10cm) of Rihter interior walls has 12mm thick load-bearing boards on both sides with 6cm of thermal and sound insulation inside. The load-bearing boards on both sides greatly increase the stability of the construction by ensuring greater rigidity of the house in case of an earthquake.

Construction system

Interior wall

Technical details

  1. Fire-resistant plasterboard (GKF): 12.5 mm
  2. OSB board: 12 mm
  3. Wooden load-bearing construction: 100 mm
  4. Thermal and sound insulation (rock wool, λ = 0.038 W/m2K) between load-bearing construction: 60 mm
  5. OSB board: 12 mm
  6. Fire-resistant plasterboard (GKF): 12.5 mm

THICKNESS: 149 mm

Advantages of Rihter Construction Systems

Energy-Efficiency

The thermal insulation of Rihter construction systems significantly exceeds the statutory requirements regarding heat transfer of external structural components. The adequate quantity of thermal insulation in the envelope of the house prevents the cooling of the house during winter and its overheating during summer.
The use of wood, which compared to other construction materials (such as concrete, steel, and brick) has low heat transfer, and carefully designed and professionally executed details ensure construction without heat bridges.

Sound Insulation

Due to its fibrous composition, rock wool is an excellent sound insulator. Rock wool, embedded in the walls and ceiling of the house, acts as a silencer and prevents sound propagation between rooms.

Fire Safety

All Rihter construction systems, except for the Natura system, use rock wool as thermal insulation between the load-bearing construction, which is classified in the highest fire resistance class, namely A1, the class of fully non-combustible materials. In Optimal, Optimal+ and Pasiv systems, the rock wool is used for the thermal insulation of the facade.

Phase Delay

The phase delay of a structure tells us how long it takes heat to “travel” from one side of the structure to the other. The ideal phase delay of a structure is around 12 hours.

Airtightness

A well-thought-out design of the construction is important for achieving the airtightness of the house. In construction systems with an insulation level, it must be ensured that the plane between the installation plane and the load-bearing construction is airtight. Ensuring the airtightness of the envelope behind the installation plane provides access to the installations without the risk of damaging the airtight envelope. Damaging the envelope results in energy loss and at the same time enables the ingress of moisture into the construction.

It is especially important for the implementation of an airtight construction that the installation of the builders’ joinery in the external envelope follows RAL guidelines for installation. This standard prescribes the manner and materials to achieve that.

Comfort of Living

Comfort of living is one of the most important criteria for a modern lifestyle. This criterion is not easily defined and it is the sum of different knowledge and expertise. Many studies have been carried out on the subject of enclosed spaces, all of which have proven that too cold/hot, too humid/dry and unventilated rooms have significant negative effects on the well-being and health of residents. We must not forget that modern people spend a lot of time in enclosed spaces, therefore it is of utmost importance that we follow the recommendations of experts to ensure a healthy and favourable living environment.

The lifestyle and the habits of individuals are different and change over time. The majority of residents want a higher than recommended living temperature in the house; however, it is only important that the temperature in individual parts of the house do not deviate from the set temperature by more than 2.5°C. The house must be suitably ventilated, as C02 values below 800ppm are recommended for residential houses. We must also think about adequate air humidity, which is especially difficult to ensure during the winter months. In response to all of this, we have excellent and proven solutions at Rihter, which will make it easier for you to ensure that your living conditions are aligned with both expert recommendations and your wishes. Through the use of natural materials and high technological excellence, Rihter houses provide a pleasant living environment. The temperature is constant, the air is fresh and pleasantly warm in all corners of the house, regardless of the severity of outdoor conditions. The draft that you might be used to in older houses on windy days is not possible due to the airtightness of the envelope in Rihter houses. These advantages have surely convinced you to choose a prefabricated house; now choose the construction system you wish to have installed in your house.