Julie Godefroy's (International WELL Building Institute) presentation from our latest IES Faculty event, which took place as part of World Green Building Week 2016. Find out about upcoming Faculty events: http://www.iesve.com/training/ies-faculty

1. © Delos Living, LLC 2014
World Green Building Week
/ IES event
WELL and MEP Implications
28th September 2016
Julie Godefroy, Delos Solutions
© Delos Living, LLC 2014

2. © Delos Living, LLC 2014
WELL Overview and MEPH Implications
Air
Water
NourishmentLight
Fitness
Comfort
Mind WELL New and Existing Buildings
May 2016
MEPH implications:
• 45 out of 102 features
• of which 23 of 41 pre-
conditions for certification
• + acoustics, M&E contractor

3. © Delos Living, LLC 2014
MEPH Implications
AIR WATER
MINDCOMFORTFITNESS
LIGHT
Ventilation effectiveness
Filtration and purification
Mould and condensation control
Humidity levels
Materials e.g. VOCs from
insulation, mercury in lighting
Extract at source e.g. printers
Monitoring
Water quality for health and
safety as well as taste
Water treatment if required (e.g.
sediment filters, carbon filters
against organic contaminants,
reverse osmosis against metals
and inorganic pollutants)
Drinking points accessibility
Lighting for visual acuity (lux)
Lighting for alertness - circadian
cycle principles (melanopic lux)
Daylight levels
Glare protection, sunlight
exposure, shading (possibly
automated)
Colour quality, surface
reflectance
Thermal comfort
Individual comfort: temperature
gradient, personal devices (e.g.
fans)
Acoustic comfort – indoor and
outdoor sources
Encouraging staircase
use: lighting at min
215lux, music
Lighting as part of overall
design and aesthetics strategy
Building user information
Stakeholder engagement
Post occupancy evaluation

4. © Delos Living, LLC 2014
Modelling – Ventilation
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P#3 Ventilation effectiveness
Meet ASHRAE 62.1 2013 rates - mechanically
or, if outdoor air quality allows, naturally
Do not exceed 800ppm CO2
Commissioning
O#15 Increased ventilation
Exceed ASHRAE rates by 30%
O#16 Humidity control
Relative humidity 30-50%
Rates typically less onerous than CIBSE
and BCO, esp. at higher densities:
CIBSE Guide A: 10l/s/p in offices
BCO 2014: 12-15l/s/p at 1p/10m2
CO2: CIBSE Guides A & B:
800-1000ppm as common indicator
International equivalent:
CEN EN 15251–2007 Annex B and CEN
EN 13779–2007, excl. Section 7.3, 7.6,
A.16, A.17.
BS EN 13779:2007 air quality classes:
IDA4 "low": <6 l/s/p, 1550-1600ppm
IDA3 "moderate": 6-10l/s/p, 1150-
1200ppm
IDA2 "medium": 10-15l/s/p, 850-
900ppm
IDA1 "high": >15l/s/p, 700-750ppm

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Modelling – Thermal Comfort
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Alternative Adherence Path:
ISO 7730:2005 and/or CEN EN
15251:2007.
CIBSE Guide A and TM52:
Heated and cooled buildings: Operative
temperature and summer PMV (aiming for
zero)
Naturally ventilated / free running
buildings: summer operative temperature
based on adaptive model, with upper limit
dependent on running mean of outdoor
temperature
P#76 Thermal comfort
Mechanically ventilated spaces: ASHRAE
55-2013 5.3 Standard comfort zone
compliance or
Naturally ventilated spaces: ASHRAE 55-
2013 5.4 Adaptive comfort model
O#21 (air) Displacement ventilation
Computational Fluid Dynamics (CFD) to
demonstrate ASHRAE 55-2013
compliance
O#83 Radiant thermal comfort
ASHRAE criteria met by radiant heating /
cooling

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Modelling – Lighting
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Generally aligns with CIBSE and
Society of Light and Lighting
Impact of flexible / standing desks
on lighting design?
Innovative
Indirectly encourages daylight to
avoid overly ”cold” artificial
lighting – modelling is beneficial
No direct correlation, but strong
CIBSE / SLL guidance on daylight
integration (usually with daylight
factors – min, average, uniformity
ratio)
P#53 Lighting for visual acuity
Ambient lighting: Min 215lux
If <300lux: 300-500lux task lighting
P#54 Circadian lighting design
Light’s effect on non-visual photoreceptors,
measured by Equivalent Melanopic Lux
Modelling incl daylight: min 250EML 4hrs/day,
at 75% workstations, vertical pane, 1.2m height
OR Artificial lighting: EML equal to IES-ANSI
RP-1-12 lux vertical targets
O#62 Daylight modelling
Min 55% space to receive min 300lux daylight
for min 50% annual operating hours
Max 10% space to receive 1000lux direct
sunlight for 250hours per year

7. © Delos Living, LLC 2014
Conflicts with Environmental Sustainability?
© Delos Living, LLC 2014
Filtering may impact ventilation efficiency
… but the mandatory WELL requirements (MERV13/F7) broadly
align with CIBSE guidance and should often already be included
Reverse osmosis plant, if installed...
But except in the case of Nickel and Copper, this would address
levels of metals exceeding UK and/or WHO guidance
Lighting loads may increase to meet the required melanopic lux levels,
if little daylight and mostly “warm” lights

8. © Delos Living, LLC 2014© Delos Living, LLC 2014
HOWEVER,
FOCUS ON PERFORMANCE IN OPERATION …

9. © Delos Living, LLC 2014
WELL Features towards Soft Landings
PERFORMANCE
VERIFICATION
Understand User
Research,
questioning
Develop Brief
To meet user
requirements and
future aspirations
Test Brief
With design team,
users and suppliersDesign & Develop
Specification
For accurate
tendering
Construction and
testing
Monitor, test and
record
Post Occupancy analysis /
Development / Optimisation
/ Gathering lessons learnt
USERS
1
2
3
4
5
6
#P85
Integrative
design
#P85
Integrative
design -
stakeholder
charrette and
development
plan
P#3 Ventilation
Commissioning
#P85 Integrative
design -
stakeholder
charrette
P#86 Post-
occupancy
surveys
P#14 Air
infiltration
testing
#P85
Stakeholder
orientation,
P#84 WELL
building guide
RECERTIFICATION
AFTER 3 YEARS
BEHAVIOR
DESIGNOPERATIONS
Maintenance and
operations P#5 &
P#23 Air filters,
P#6 mould
Monitoring and maintenance
O#35 water testing, O#36
water filters/sanitizers, O#37
water dispenser, O#18 air
quality

10. © Delos Living, LLC 2014© Delos Living, LLC 2014
MAKE THE MOST OF IT!
Thank you
Julie.Godefroy@delos.com