sustainable refurbishment, retrofit, energy management...

Sustainable Refurbishment, Retrofit,

Energy Management in Housing

The assignment book



Zirmunu str. 116, Vilnius

The assignment book



Sustainable Refurbishment, Retrofit, Energy Management in Housing

Vilnius, 01-16 April 2013 2

Introduction In many countries passive house design & suitability is not a new concept. Europe is moving to renewable energy and most countries are aiming for 20% renewable energy for 2020. In December 2009 Spain reached an amazing figure of 54% of renewable energy production for all of Spain. Also Co2 production is being cut even though no final agreement was made in Copenhagen, the ground stone was laid for a future agreement. Therefore for as professionals in the field of architecture, construction & civil engineering, we must start implementing passive housing design and sustainability in our designs, constructions and calculations. As mentioned before the concept of passive house design is not a new one for example in some countries whole villages are designed and built under the passive house concept. What is interesting is in most European countries for example Denmark 80% of dwellings are from older stock and use a vast amount of energy compared to new highly insulated dwellings. Therefore the buildings chosen for the project are a 5 storey residential building erected in 1968 in prefabricated concrete elements, containing 30 apartments, situated in Vilnius, Lithuania

Definition of a passive house The concept of a passive house is characterized by extremely low power consumption and an exceptionally good indoor climate. At the same time there is in modern passive house a comfort as in any other traditional build new building. The passive house building is using much less energy for heating than other types of new buildings and therefore the CO2 emissions are significantly much lower. In addition to the reduced environmental load, it also generates a lower energy bill for residents of the houses. There are approx. 8000 dwellings in Germany, Austria and Switzerland, which is listed by passive house concept. So even though it is in its infancy in many other countries in Europe, it is a proven concept. The Passive house concept is expected within a few years to become standard in the EU, already in 2015 - 2020 Passive house is a building type, which reduces energy consumption as much as possible through simple "passive actions". And that means actions which in themselves do not require mechanical, power-consuming components such as pumps, etc. It could for example be insulation, tight constructions and high-insulating windows. That`s why you can provide an even lower energy than at low energy houses. Ventilation system with heat recovery, combined with density ensures a good indoor climate, because the system provides an air change frequently, so the air is always fresh and clean throughout the building. Before a house can be classified as a true passive house, you must meet the specific German passive house criteria and calculate the so-called PHPP calculation. The limit for power consumption in passive houses is max.15 kWh/m2 per year after the German calculation (see table below).

Sustainable Refurbishment,

Workshop dates including evaluation: 01/4-2013 to 16/4-2013

The workshops aims are to:• Integration of architectural design and construction into a multi

• Understanding of the working engineers design and building management phase.

• Implementation of multi-renovation of multi-storey residential buildings from the 1970s.

• Promotion of cultural understanding between within the European Union

• Understanding of the diverse construction and building traditions with in Europe

The main contents & topic areas in the multi• Group & team work

• Cultural understanding

• Technical English

• Passive house design & construction

• Calculation on investment and returns in passive house and retrofit projects

• Structural design

• Sustainable design & construction

• Sun analysis

• Alternative ventilation

• Heat pumps

• Materials & alternative insulation

• Solar heating

• Ground source heating

• Landscaping • Presentation techniques

Group work Students work in groups of 5 persons

• A group must contain 1 student from different participating universities.

• In each group there should be at least 2 students

• Each group is responsible for the completion of 5 tasks, but work must be delegated out to group members.


Vilnius, 01-16 April 2013

Workshop dates including evaluation:

The workshops aims are to: Integration of architectural design and construction into a multi-disciplinary project.

Understanding of the working process in the early stages of the architects and engineers design and building management phase.

-national passive housing conception in the redevelopment and storey residential buildings from the 1970s.

ion of cultural understanding between within the European Union

Understanding of the diverse construction and building traditions with in Europe

The main contents & topic areas in the multi-disciplinary project:

Passive house design & construction

Calculation on investment and returns in passive house and retrofit projects

Sustainable design & construction

nsulation

Presentation techniques

Students work in groups of 5 persons

A group must contain 1 student from different participating universities.

In each group there should be at least 2 students with a high level of English.

Each group is responsible for the completion of 5 tasks, but work must be delegated

Retrofit, Energy Management in Housing

3

disciplinary project.

process in the early stages of the architects and

national passive housing conception in the redevelopment and

ion of cultural understanding between within the European Union

Understanding of the diverse construction and building traditions with in Europe

disciplinary project:

Calculation on investment and returns in passive house and retrofit projects

A group must contain 1 student from different participating universities.

with a high level of English.

Each group is responsible for the completion of 5 tasks, but work must be delegated



Planning It is therefore very important to study the assignment and the project carefully and make a group planning for solving the workshops tasks. The planning should contain

• Tasks/work to be completed in the project.

• Estimated time to be used.

• Actual time used

The projects main tasks There are 10 main tasks to be completed in the project

1. Energy efficiency 2. Sustainable design and construction 3. Ground source heating & heat pumps 4. Solar heating 5. Building services 6. Green roofs and facades 7. Wind turbines 8. Penthouse/community house design & construction 9. Landscaping/urban planning 10. Calculation of investment and returns in passive house and retrofit projects

The tasks It is each group’s assignment to choose and research 5 of the above tasks and then implement the best possible solutions in the retrofit project to fulfil the client’s demands.

The client’s demands The client’s demands for retrofit of the apartment block is:

• Reduction of energy consumption to passive house guideline and levels

• Sustainable energy production

• Modernisation of apartments including kitchens & bathrooms

• Installation of an elevator.

• Modernisation building services and implementations of mechanical ventilation in all wet rooms and kitchens.

• Facade, gable and roof insulation

• Green roof and facades or addition of an extra roof storey (penthouse or community house)

• Sustainable building materials & construction

• Water recycling and collection system

• Balcony renovation

Workshops solutions and presentation It is each group’s responsibility to document their work regarding task research and solution of the clients demands by preparing a digital oral presentation or posters.



The posters can be traditional paper posters or digital presentations, which ever method is chosen the presntations must contain

• Workshop planning

• Task research information

• Sketch proposal, scale drawings, calculations, modelling

• Clients proposal

Workshop evaluation Each group must present their work for a maximum of 30 minutes, all group members taking part equally. Date and time of evaluations will be announced at the start of the workshop.

Schematic time span diagram for the IP project

Sustainable Refurbishment,

The Lithuanian project


Vilnius, 01-16 April 2013

The Lithuanian project

Retrofit, Energy Management in Housing

6



Photographic registration of Zirmunu str. 116, Vilnius

South West fasade

South West gable

South East gable

Balconies



North East fasade

Stairway/entrance door



Detail of window & prefabricated concrete

element

Ground floor balconies and basement

Access road and parking

Waste storage



Example of construction details (see detail book)



1 Energy efficiency task to be implemented in the project

together with the clients demands.

• Façade/gable/roof/balconies insulation

• Sustainable and alternative insulation

• Passive sun heating.

• Thermal bridge solutions

• U value calculation & heat loss frame

• Cost calculations



2 Sustainable design & construction task to be

implemented in the project together with the clients demands. • Exterior architectural design (balconies, winter gardens)

• External cladding and construction

• Sustainable materials (transport, production & implementation on site and the use of energy and Co2 emissions)

• Detailing

• Costing



3 Heating Systems task (ground source heating and heat

pumps) to be implemented in the project together with the clients demands.

• Ground heating types

• Heat pump systems (air to air)

• Costs

• Energy production

• Implementation and assembly on site

• Fixture and fitting


• Supplementary heating system

• Installation internally

• Installation externally



4 Solar heating task to be implemented in the project together

with the clients demands.

• Sun analysis

• Solar panel heating systems


• Types of solar panels

• Panel sizes and dimensions

• Fixture and fitting

• Cost analysis



5 Building services task to be implemented in the project


• Passive house ventilation & heating systems

• Internal air tightness

• Natural ventilation

• Service pathways

• Hot water storage tanks etc.

• Heating systems calculation

• Water recycling

• Water storage tank rain water

• Water storage grey water systems



6 Green roof/facades design & construction to be

implemented in the project together with the clients demands.

• Intensive construction

• Extensive construction

• Inverted roofs

• Membranes

• Vegetation and food production

• Thermal insulation

• Detailing

• Maintenance

• Costs



7 Wind turbines task to be implemented in the project together

with the clients demands.

• Wind and climate


• Wind turbine systems

• Wind turbine types

• Wind turbines and the national grid

• Cost feasibility



8 Penthouse/Community house design & construction task to be implemented in the project together with

the clients demands.

• Existing roof analysis

• Passive & sustainable design/ construction

• Stairway and elevator proposal

• Building services

• Materials

• Structural design

• Costs

• Feasibility and investment returns on extra storey



9 Landscaping/urban planning tasks to be implemented

in the project together with the clients demands.

• Human environment

• Parking

• Play areas

• Water collection tanks

• Refuse storage

• Green areas

• Trees/vegetation/food production

• Shading

• Noise pollution prevention



10 Calculation of investment and returns in passive house and retrofit projects to be implemented in the project


sustainable refurbishment, retrofit, energy management...

Documents