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Repairing of Building Services Engineering Systems Rak-43.3313 Repair Methods of Structures, exercise (4 cr) Esko Sistonen.

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Presentation on theme: "Repairing of Building Services Engineering Systems Rak-43.3313 Repair Methods of Structures, exercise (4 cr) Esko Sistonen."— Presentation transcript:

1 Repairing of Building Services Engineering Systems Rak Repair Methods of Structures, exercise (4 cr) Esko Sistonen

2 Some basics...  Demolition work from the top downwards; HVAC repair vice versa  Ventilation: from negative pressure to overpressure  Cleanliness of bag filter and heat exchanger: supply, exhaust, outside, and waste air duct  Technical systems: ground loop heat pump systems,..

3 Some basics...  Planning before repair action Header Sound absorber Cold (blue) and warm (red) water supply Sewer pipe Pipes (white) from boiler and ground loop heat pump Floor heating pipes Technical room

4 Water leak of wall sump Re-insulated water pipes Dirty exhaust outlet Water leak of storm water drainage from flat roof

5 Water shut off valves -> asbestos, mould District heating system

6 Water leak of cast iron drain pipe Heat distribution room Insulation groove in suspended ceiling Inspection panel of waste sump

7 Minor water leak of old drain pipe Water leak of hot water heating system

8 HVAC Repair Works duct work machinery installations insulation work terminal installation control and monitoring work non-sewers floor drains the heat distribution room pipe installation heating coil installation water and sewer fitments

9 Installation of lining hose into air shaft of natural ventilation From natural ventilation to exhaust ventilation

10 -Bathrooms made of metal plates -Repair of plastic drain pipes

11 Alternative water and sewer pipe repair methods *renewal of the whole piping system -requires the demolition work of structures (structures of channels) -takes-6mths – interference for users (water breaks, toilets, showers, common areas or containers) -dust, noise -the end product is known: the pipes are new *pipe coating -tube in tube coating with epoxy -fast – a bit interference (takes up only 2 days) -no noise -durability of app. 20 years of experience in Western Europe, for a longer time period -Insurance companies does not necessarily give an age reduction -the coating is also possible for a warm and cold water pipes

12 Several internet links and some key words nZEB_Kurnitski-1.pdf *Condition survey manuals (at least in Finnish) *HVAC (Heating, Ventilation, and Air Conditioning) *Building Services Technology (in Finland)

13 Several standards…  SFS-EN ISO (October 2010). Classification and information on design of plastics piping systems used for renovation (ISO 11295:2010).  SFS-EN ISO (2011). Plastics piping systems for renovation of underground nonpressure drainage and sewerage networks - Parts  SFS-EN ISO (2011). Plastics piping systems for renovation of underground water supply networks - Parts 1-3.  SFS-EN (Mars 2013). Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 4: Specific functional requirements for renovation.  SFS-EN (December 2001). General requirements for components used for renovation and repair of drain and sewer systems outside buildings.

14 Several standards…  SFS-EN (2003). Plastics piping systems for renovation of underground non-pressure drainage and sewerage Networks - Parts 1-7.  SFS-EN (January 2011). Classification and characteristics of techniques for renovation and repair of drains and sewers.


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