Multicomfort house student contest

Contest Тask 2010

The subject of the 2010 competition was the creative approach to the concept of energy efficient constructions at the passive-house level on existing buildings.
The aim was to redesign an existing post industrial building, patient based on an old warehouse in Paris (France) according to ISOVER MULTICOMFORT HOUSE definition and with passive house components.
The planned redesign with renovation and revitalisation should have given a new impulse in the existing urban area.
There were no restriction in the concept of future usage and the function of the building....

Details of the task 2010

1.1 Property

The location is situated between the canal on the north and Avenue Jean Lolive on the south. The eastern border is Rue Ernest Renand and the western border the extension of Avenue Jean Lolive. The canal is still used to transport both goods and passengers.
Students had an unrestricted choice to select the future usage of the building, sale an existing post-industrial warehouse, physician which has to be revitalised and renovated. The renovated building had to have the building physics performance of an ISOVER MULTICOMFORT HOUSE.
Beside constructional, the social and economic aspects also had to be considered and respected as the revitalisation of this subject had to give a new impulse in the existing urban area.
1.2. Space allocation

According to the concept of function of the building, additional requirements had to be considered e.g. accessibility, parking places for cars, bicycles and motorcycles.
The outdoor area should have been included in the concept and external plans had to be roughly designed.

1.3. Type of construction, technical parameters
The bearing construction is reinforced concrete. The frame construction is fully filled with brick masonry and wide shape doors and windows.

If the concept is to have any changes in the bearing construction, this can be chosen freely as wooden frame, masonry or steel constructions.

The high-performance thermal, acoustic and fire protection requirements had to be considered in order to achieve the ISOVER MULTICOMFORT HOUSE criteria.

In order to achieve the  MULTICOMFORT HOUSE e criteria the following requirements had to be satisfied:

1.3.1 Thermal insulation:

The exterior structural components should have had the following U-values, recommended for moderate climate zones:
● All opaque external constructions U ≤ 0.15 W/m2K, or R > 38 (1/BTUITh-1 ft-2 oF -1) for compact building shape (e.g. existing shape)
● All opaque external constructions U ≤ 0.10 W/m2K, or R > 57 (1/BTUITh-1 ft-2 oF -1) for non-compact building shape
● Windows and doors U Wtotal ≤ 0.8 W/m2K, or R > 7 (1/BTUITh-1 ft-2 oF -1)
1.3.2. Protection against overheating in summer

Sufficient outside sun protection for the eastern, southern and westward windows needed to be planned according to the future function of the warehouse.
In the project the ratio of transparent to opaque components also needed to be taken in account.
The frequency of overheating of more than +25oC or +77oF indoor temperature had to be less than 10%.

1.3.3. Technical parameters for fire protection

Fire protection should have achieve the European requirements:
● all bearing internal and external walls - at least REI 60 according to ISO standards,
● the roof and ceilings - at least REI 60 according to ISO standards,
● all non-bearing internal walls between 2 functional units (depending on the function)-at least REI 30 according to ISO standards.

The construction fire sections and the emergency exits had to be considered.

1.3.4. Technical parameters for sound insulation.

Depending on the future function of the building the sound protection concept had to be included.

The airborne and impact sound insulation of the residential and non-residential buildings had to be planed according to ISOVER Acoustic Comfort Classes.

Reverberation time had to be taking in to account based upon the function and the type of the building.

Following criteria had to be achieved in case of:
Residential building or similar function:
● Airborne sound insulation between dwellings DnT,w ≥63 dB
● Airborne sound insulation between the rooms in the dwelling (without the doors) DnT,w ≥45 dB
● Impact sound insulation between dwellings: LnT,w ≤ 40 dB
● Impact sound insulation in the dwelling: LnT,w ≤ 50 dB

Non-residential building:

● Airborne sound insulation for the exterior walls Rw ≥55 dB
● Airborne sound insulation for the roof Rw ≥50 dB
● Airborne sound insulation between special protected areas in the building Rw ≥55 dB
● Airborne sound insulation for all ceilings Rw ≥55 dB
● Impact sound insulation for all floors: LnT,w ≤ 45 dB.

All ceilings in non-residential usage should have been designed to comply with Sound Absorption Class A to EN ISO 11654.
1.4. Competition requirements
The following minimum requirements should have been treated:

● Function, revitalisation concept and explanations
● Redesign report - description of the design concept
● Energy supply and ecological concept (optionally with graphic illustration)
● Description of construction
● List of constructions with U-values
● Results of simulations and calculations
.● Explanation of all thermal and acoustic properties in the table


● Plan of site 1:500 with solution of the connection to local public infrastructure 10
● Floor plan and cross-section 1:100
● Horizontal facade cross-section 1:50
● Vertical facade cross-section 1:50
● Strip view of south facade 1:50
● Construction details 1:10
.● Renderings and /or photos of the model (optionally)

Other requirements

● Energy and ecology estimation (energy-pass, eco-pass),
● Usage of renewable energy systems,
.● Accessibility.
1.5. General assessment criteria

The main appraisal criteria were:

Design and functional concept:

● Idea of the future concept and creative approach to the structure of the building,
● Functionality and quality of formal design of the renovated building,
● Connection to the existing urban area.

● Renovation concept,
● Total energy consumption concept (passive house technology),
● Thermal quality of the building envelope,
● Summer performance,
● Passive and active solar gains, Acoustic comfort.

● Economical and social aspects of the future function and the impact of the design quality
● Exposure and lighting concept,
● Green space design,
● Accessibility,
● Implementation of the renewable energy sources.