Building services-i (2)
- 1. Building Services I Name: Hong Kai Yin (0323361) Ngah Yea Zhe (0323204) Elliot Pang Tiu Seng (0319438) Welson Lum Wei Jiunn (0319514) Jackson Ting Shii Hang (0324326)
- 3. Green Building and Renovating • Vancouver lead the world in green building design and construction. The City is working to reduce the amount of energy consumed by the city's new homes 33% by 2020.
- 4. Green Building and Renovating 12 Ways to design your house to be energy efficient 1) Efficient Lightning 2) In-Home Energy Display 3) Gas Fireplace Efficiency 4) Window Perfomance 5) Ventilator 6) Exterior Walls 7) Toilets 8) Under-slab Insulation 9) Basement Walls 10) Pre Piping 11) Domestic Hot Water Supply Efficiency 12) Car Charger
- 5. Permits and Regulations • Building permits and regulations are enforced by the City of Vancouver to ensure safety and livability for you, your neighbours, and future property owners and residents.
- 6. Permit Application Process • Step 1 - Document the building before work begins • Step 2 - Document the proposed changes • Step 3 - Arrange for a Letter of Assurance • Step 4 - Arrange for a Letter of Credit • Step 5 - Apply for a development permit • Step 6 - Arrange for a final inspection
- 7. Constructions Damage Deposit • The heritage buildings in Vancouver either renovations or new constructions will require a refundable damage deposit before the building permit issued.
- 8. Inspections • Inspections is to ensure that renovation or construction work complies with the relevant bylaws, and meets the City's goals around life safety, accessibility, green buildings.
- 9. Fees Deposit Fees • The deposit will be at least $1,000. For single family homes, the fee is typically $2,000. For other projects, the deposit may be significantly larger. Inspection Fee • The inspection fee will vary, based on the size of the project. For 2012, the fee ranges from $166.45 to $3,221.71.
- 10. Utilities locations and Construction • Modern City has to complex network of water, telephone, electrical , voice communication carrier pipes below ground. • Due to the utility installations need to be safe, the staff review proposed construction to ensure they meet all the requirements, policies, procedures and protocols.
- 11. Benefits of energy efficiency heritage buildings in Vancouver 1) Installation of : • Fireplace • Chimney
- 12. 2) Embodied energy • The buildings retain their embodied energy. • The energy used in lifecycle of a building which are • Initial Energy • Recurring Energy • Operating Energy • Energy to demolish and dispose of the building
- 13. 3) Low Energy-Intensive Building • Example of materials for construct building are woods and bricks • Reduce greenhouse gas emission
- 14. Benefits of energy efficiency of overall heritage building • Thermal mass • Natural Ventilation System • Construction of timber floor • Installation of insulation • Produce lesser unwanted substances
- 16. Case Study: City Of Vancouver • Heritage buildings mostly 20th century. • 2150 of registered heritage buildings. • The large amount of heritage buildings in a city may cause huge energy consumption. • How to solve it? “Vancouver’s 2020 Greenest City Action Plan”.
- 18. Examples:
- 19. Type of House Rating Older house not upgraded 0 to 50 Upgraded old house 51 to 65 Energy-efficient upgraded old house or typical new house 66 to 74 Energy-efficient new house 75 to 79 Highly energy-efficient new house 80 to 90 An "advanced house" that uses little or no purchased energy 91 to 100 EnerGuide Rating Chart
- 20. Heritage Buildings Performance Upgrades • Domestic Hot Water (DHW): I. Solar panels installed. • Electrical System: I. Installed two parallel electric system II. Modern alarm system installed. III. Modern electronic equipment. IV. Speaker system
- 21. Heritage Buildings Performance Upgrades • Heating: I. Introduce radiant heat. II. Introduce Ground Source Heat Pump(GSHP). III. Installation of Heat Recovery Ventilator(HRV). IV. Backed up heating unit in the attic. • Insulation: I. R5/ inch spray soy-based polyurethane installed.
- 22. Heritage Buildings Performance Upgrades • Seismic Upgrades: I. Reinforced rebar and cement reinforcements beneath chimney and main walls. II. Engineered beams and hangers. III. Hurricane ties between the floors. IV. Iron ties to the chimneys. V. Interior sheer walls added.
- 24. Type of House Upgraded House Original House Total Embodied: Material: 567.975 388.874 Transportation: 29.445 23.841 Total: 597.420 412.715 Operating Energy: Annual Operating Energy: 79.4 199.4 Total Operating Energy: (75 years) 5955 14955 Total Lifetime Energy: (75 years) 6552.4 15367.72 Energy Usage Comparison: Upgraded and Original House
- 25. Possible Problems and Precautions Construction Check the materials status Performance done by workers under control Decay , quality , outlook and design affected Breathing performance Exchange air with outdoor environment Modern materials will affects the breathing performance as well as trap moisture Increasing of decay and damp problems
- 26. Financial cost and payback Hire professions to control the quality of works Cost more due to heritage buildings Much more expensive than a normal building Repaint and repairing Common paint-staking Extra cost of paint to take care the properties of building Affect the bonding strength of paint Possible Problems and Precautions (cont’d)
- 28. Things to do before renovating the building: 1. Identify the parts of the building we need to upgrade 2. Request an energy improvement plan that establishes priorities and alternatives, including life cycle from energy auditor.
- 29. Method to improve energy efficient 1. Install components that provide natural ventilation and light • Example: windows, interior courtyards, skylights and roof ventilators • Reduce the use of mechanical ventilation • Minimize the cost of electricity • Maintain the thermal comfort, example: heat can be dispersed from the building through these openings.
- 30. Method to improve energy efficient 2. Build thick masonry wall • Have substantial mass and high thermal inertia • Enable heat to be reduced in the building during hot weather and traps heat during cold weather. • Suitable to all climate weather • In summer, heat absorbed at the outer surface of the wall takes a period of time to transfer to the interior part of wall. • In winter, heat is trapped within the building by dampening the overall peaks of heat gain and loss.
- 31. Method to improve energy efficient 3. Install wide overhang roof (hot climate) or sloping roof (cold climate) • Wide overhang roof creates porches that can minimize the heat absorbed from the sun • Apply light coloured roofs to greatly reduce heat absorbed • Sloping roof has no overhang prevails which allows the shedding of snow • Increase the beneficial solar heat gain through windows
- 32. Method to improve energy efficient 4. Floor plans • In cold climates, the design of the building should be low ceiling • Allows the heat to be shared more frequently inside the building • Small windows with interior shutters should be installed to reduce drafts and heat loss from the building • In hot climate, wide central halls with high ceilings, breezeways and large porches should be designed • To maximize the air circulation.
- 33. Method to improve energy efficient 5. Repairing and weather-stripping windows and doors • Use draft-proof interlocking zinc, bronze or stainless steel weather- stripping • Add or tighten exterior or interior storm windows and doors with gasket • Allow for weep holes along the bottom rail to drain or vent condensed water vapour • Determine and seal locations of air infiltration
- 34. Method to improve energy efficient 6. Reduce energy demands for heating and cooling This can be done by 2 steps: 1. Upgrade to mechanical systems and major appliances (make sure that we do not make alterations or adding new materials) 2. Corrective work or treatments, such as weatherization, that require other alterations to the building may be considered.
- 35. ~~~Thank You~~~