16469- Low Energy Building Design Presentation 1- Regulations

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16469- Low Energy Building DesignPresentation 1-
Regulations

• Marc Smeed
• Edmund Tsang
• Graham Dow

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Review of National RegulationsVENTILATION

• the primary purpose of ventilation is to
• provide good indoor air quality in both
• summer and winter.1

1. Building Bulletin 87, 2nd Edition Version 1
(May 2003)
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Review of National RegulationsVENTILATION

• Schools must conform to all of the rates outlined
  below1

Building Bulletin 87, 2nd Edition Version 1 (May
2003) CIBSE Guide F Energy Efficiency in
Buildings, 2004
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Review of National RegulationsVENTILATION

• Issues related to VENTILATION
• Summer design Temp- 24C 4 C
• Noxious fumes Dust- require higher levels of
  VENTILATION
• Indoor Air Quality

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Review of National RegulationsINDOOR AIR QUALITY

• There are many factors which influence IAQ1

1. Building Bulletin 87, 2nd Edition Version 1
(May 2003)
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Review of National RegulationsINDOOR AIR QUALITY

• Metric used to measure IAQ- CO2

Increasing levels of CO2
Building Bulletin 87, 2nd Edition Version 1 (May
2003)
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Review of National RegulationsWATER SUPPLY

• A school shall have a wholesome supply for
  domestic purposes including a supply of drinking
  water.

1. Building Bulletin 87, 2nd Edition Version 1
(May 2003)
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Review of National RegulationsWATER SUPPLY

• Hot Water
• Transport temp must 60C
• Temp at point of use must 43C
• Daily Storage Capacity Required 15 l/person
• Cold Water
• storage sufficient to enable the school to
  function during an interruption to the water
  supply
• Volume required is 15-25 Litres per person per
  day in the school
• Drinking water
• Supply must be clearly labelled

Building Bulletin 87, 2nd Edition Version 1 (May
2003) CIBSE Guide G Public Health Engineering,
2004
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Review of National RegulationsWATER SUPPLY

• Cisterns
• Store the minimum amount or water required
• Materials used in construction should not
  contaminate water
• Piping
• Maximum lead level of 10 microgrammes/litre
• Thermostatic mixing valve
• Must be located no more than 2 metres from point
  of use.
• Must achieve appropriate mixing

WATER MANAGEMENT IN SCHOOLS - RESEARCH REPORT
DWI0419 Feb 1993 Building Bulletin 87, 2nd
Edition Version 1 (May 2003)
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Thermostatic Mixing Valve
http//www.cashacme.com/ContractingCanada_Nov03Plb
gCodeUpdate.pdf
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Review of National RegulationsHEATING

• The thermal conditions within educational
  buildings should be appropriate to the activities
  and clothing of the occupants

Building Bulletin 87, 2nd Edition Version 1 (May
2003)
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Review of National RegulationsREQUIRED
TEMPERATURES
Any school that has a nursery- the temperature of
any radiator or exposed pipe work must not exceed
43C
Information from Building Bulletin 87, 2nd
Edition Version 1 (May 2003)
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Review of National RegulationsLIGHTING

• In classrooms provisions should be made that
  light level on the working plane is 300 lux
• When visibly demanding tasks are carried out
  illluminance of not less than 500 lux should be
  maintained
• A glare index of no more than 19

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Review of National Regulations LIGHTING

• Priority should be given to DAYLIGHT use
• Uniformity Ratios (min/average daylight factor)
• For naturally side lit rooms in the range 0.3-0.4
• For naturally top lit rooms e.g. atria around 0.7
• For electrical light of not less than 0.8 on the
  working plane

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Review of National Regulations GLAZING

• Vertical glazed areas must 40
• When a passive or daylight design strategy is
  adopted it may exceed 40
• Horizontal or near horizontal glazing must 20
• CLASSROOMS should
• Have at least 20 vertical glazing
• Should have a view.

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CONTEXTCITY CENTRE ISSUES

• Daylight Penetration
• Limited Space
• Narrow scope for Renewable Energy
• Level of Pollution

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EFFECTS of these requirements on demands

• TEMP
• restrictions may require cooling (especially in
  rooms with IT equipment)
• VENTILATION
• regulations will require partial mech vent
  (washrooms)
• possibly assisted NAT vent due to pollution
• WATER
• lower supply temp bigger pumps
• LIGHTING
• high uniformity generally requires more lighting.

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Energy TARGETS
CIBSE Guide F Energy Efficiency in Buildings,
2004
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QUESTIONS?...