EXAMPLES OF RENOVATION DESIGNS
|
|
SATELLITE PALACE- MESSINA ITALY |
|
BUILDING CURRENT CONDITION – TECHNICAL AND OTHER PROBLEMS DETECTED |
|
The building was built for residential use and each floor hosts several residential units / apartments. This residential building typology has been converted in office and public space without any planning or adaptation. Furthermore, the building even if it is owned and managed by one entity (the municipality), is subdivided into individual office suites (originally residential units) and is in use by organisations of different size, needs and business types. This results in areas with favourable, less favourable and poor indoor environment and further complicates the physics and the overall performance of the building. Besides, some characteristics and technical standards of the building contribute to its poor thermal performance. The orientation is not favourable demanding high heating energy consumption during the winter (supplementary in the north exposition) and high cooling energy consumption during the summer. In addition the facades do not have any protection from solar radiation. The external walls have a medium thermal inertia with over-media ceiling height, this aspect increases the envelope energy thermal response during the summer, but causes disadvantages during the winter. Still, the windows are the old type with a single glazing and aluminium frames and present insulation problems and limited air tightness. The building presents many pathologies, such as condensation and mould. | |
ECONOMIC, FINANCIAL AND LEGISLATIVE CONSTRAINS |
BRIEF DESCRIPTION |
Economic/Financial Risks The municipality has no specific financing to improve public buildings. There are therefore serious difficulties to undertake energy improvements. The Administration is trying to raise funds from national and regional funding programs. Legislative Obstacles There are no legislative obstacles to the renovation of this building. |
Palazzo Satellite is a municipal building of Messina. The building is located in the historic centre of the city, near the central station. The building includes many functions of municipal government, including the Local Health Unit, the municipal Police management and several Municipal Departments.Building style is modern; it is an example of a frame structure made of reinforced concrete. The walls are made of masonry and the floors are in slab and masonry. The building is constituted of 5 floors above ground. The dimensions are the same for each floor.The building is usually in use between 0h00 and 24h00 from Monday to Sunday only for the municipal police management. The public activities of employees are carried out only between 7h30 and 19h30. The building hosts about 200 employees and it is visited by an indeterminate number of public. |
RENOVATION SCHEME |
|
Building Envelope: Opaque Envelope: among the actions planned, there is the facades renovation, it is planned to ensure the safety of unsafe parts and, where necessary, to do an important refurbishment. Another change concerns the reconstruction of the plaster of the facades, using a thermal insulation plaster. Among other interventions there is waterproofing of the roof, so it is expected to enter under the floor of a fibre-reinforced bituminous membrane. Glazing: also, the existing glazing and frames will be replaced selective glazing and thermal break frame in PVC. Regarding the frames is chosen to include window frames with thermal break. It is chosen to use windows with PVC frames. Glasses chosen are selective double glazing with air chamber 6/13 mm.
HVAC: Almost all working rooms, have air conditioning systems. It is expected to insert a false ceiling in all circulation areas and, where possible in all rooms of the building. The result is a decrease in the net height of the rooms to be heated and creation of a channel for heating and lighting installations. Lighting:It is expected to replace the existing lighting with the introduction of LED lamps and, where possible, to insert intelligent dimmerable systems. RES: The choice is the installation of a PV system with120 kWp. This ensures about 84% of post renovation consumption of electricity. Passive solar gains/insulation: it is foreseen a green roof that will give two great advantages: (i) it will decrease heat loss during winter season working as thermal insulation, (ii) it will hinder heat input during summer season working as a reflecting system for sunlight. Energy management system: a centralised Building Automation Control System (BACS) is foreseen to control the building’s heating, cooling and ventilation, lighting and other systems through a Building Management. This distributed system includes networked computers, all electronic devices useful to control security, lighting in general and emergency lights as well rooms’ humidity and temperature. Equipments: The envisaged interventions are divided into three types: (i). staff’s training to a rational use of office equipment; (ii). purchases regulated by Green Public Procurement (GPP model), by providing clear environmental criteria for products and services and giving a favourable evaluation to the products with better energy class; (iii) control systems which manage, command and regulate the behaviour of other devices or systems. |
|
GENERAL INFORMATION |
|
Year of construction: | |
1970 | |
Area/Volume: | |
6.870 m2 (about 1.350 m2 to floor) / 18.550 m3 | |
Building Use : | |
Municipal Office / City Hall | |
LEARN MORE: Link to D2.1 pdf Link to D2.3 pdf Link to Guide or Brochure |
EXAMPLES OF RENOVATION DESIGNS
|
|||||||||||||||
SATELLITE PALACE – MESSINA ITALY |
|||||||||||||||
RENOVATION SCHEME EVALUATION |
|||||||||||||||
Energy Savings The energy consumption before renovation is equal to 340,626 kWh/year and the energy consumption on square meter is equal to 50 kWh/m2 yearly. The energy consumption savings are equal to 308,557 kWh/year, that means an energy expenditure saving of 55,540 Euro/year.CO2 Savings The CO2 savings are 98,545 tons/year. RES Integration |
PARAMETERS OF THE RENOVATION SCHEME- TOTAL
|
||||||||||||||
ECONOMIC EVALUATION |
|||||||||||||||
Renovations cost Economic Savings Project Payback Period |
INVESTMENT FOR RENOVATION – TOTAL
|
||||||||||||||
FINANCING SCHEME | |||||||||||||||
Energy Performance Contract The strategy of Messina’s Municipality is to promote the nZEB concept, despite its inability to financing the needed renovation options under the current tight economic conditions. Dealing with the expensive renovation of Satellite Palace, the most suitable operational financial scheme corresponds to a solution which combines the use of three types of public/private partnerships EPC contracts, with provision of specific conditions, in order to make the project attractive for the ESCo market. To make it palatable to the market projects and allow a contract term not exceeding nine years is necessary:
The project is still not sustainable for an investment of an ESCO. Duration of EPC Financial Sources Other considerations |
|
||||||||||||||
LEARN MORE: Link to D2.5 pdf Link to D3.6 pdf Link to D3.7 pdf |