This document outlines Pedro Clarke's presentation on sustainable architecture. It discusses: 1. Using a passive design approach that learns from vernacular architecture to control solar gain through materials, daylighting, and considers embodied carbon. 2. Integrating active technologies like HVAC systems in a way that maximizes their effectiveness while minimizing energy usage. 3. Taking a holistic approach to sustainability that considers the entire building lifecycle from design through use, prioritizing high performance, flexibility, and minimal environmental impact.

1. with Pedro Clarke – Principal Architect
at A+ Architecture, In Loco Program
Director
Sustainable Architecture:
Stephanie Braswell
Webinar Coordinator,
Architecture Focus
WEDNESDAY OCTOBER 19TH
9:30 AM PDT | 2:30 PM EDT | 5:30 PM BST
Architecture Focus
Expert Insights. Personalized for you.
Pedro Clarke,
Director, Principal Architect
Design Green with
the Client in Mind

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4. PEDRO CLARKE
Director, Principal Architect

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What do you mean by sustainability
Leaving things better than we found them...

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U-Value
Thermal transmittance is the rate of transfer of heat through matter.

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More than Certification
Buildings should be well designed...

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Portugal... more than just a sunny country
contextualism is key to a good sustainable design...

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Avg. 56 days of rain (3012hrs of Sun)
https://www.climatedata.eu/
Faro, Algarve

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Avg. 82 days of rain (2781hrs of Sun)
https://www.climatedata.eu/
Lisbon, Estremadura

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Avg.109 days of rain (2463hrs of Sun)
https://www.climatedata.eu/
Porto, Douro Litoral

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Monte da Caliça
a o t e ficient

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Passive Design Approach
Learning from vernacular...

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Passive Design Approach
Controling Solar Gain

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Passive Design Approach
Materials, Daylight, Embeded Carbon, etc...

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Integrating Active Technology
how to make the most of new tech...

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Our Approach
moving forwards

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The RIBA Plan of Work
organises the process of
briefing,designing,delivering,
maintaining,operating and
using a building into eight
stages. It is a framework for
all disciplines on construction
projects and should be
used solely as guidance for
the preparation of detailed
professional services and
building contracts.
0
Strategic
Definition
1
Preparation
and Briefing
2
Concept
Design
3
Spatial
Coordination
4
Technical
Design
5
Manufacturing
and Construction
6
Handover
7
Use
Projects span from Stage 1 to Stage 6; the outcome of Stage 0 may be the decision to initiate a project and Stage 7covers the ongoing use of the building.
Stage Outcome
at the end of the stage
The best means of achieving
the Client Requirements
confirmed
If the outcome determines that
a building is the best means of
achieving the Client Requirements,
the client proceeds to Stage 1
Project Brief approved by the
client and confirmed that it
can be accommodated on
the site
Architectural Concept
approved by the client and
aligned to the Project Brief
The brief remains “live” during
Stage 2 and is derogated in
response to the Architectural
Concept
Architectural and engineering
information Spatially
Coordinated
All design information
required to manufacture
and construct the project
completed
Stage 4 will overlap with Stage 5
on most projects
Manufacturing,construction
and Commissioning
completed
There is no design work in Stage 5
other than responding to Site
Queries
Building handed over,
Aftercare initiated and
Building Contract concluded
Building used,operated and
maintained efficiently
Stage 7starts concurrently with
Stage 6 and lasts for the life of the
building
Core Tasks
during the stage
Project Strategies might include:
– Conservation (if applicable)
– Cost
– Fire Safety
– Health and Safety
– Inclusive Design
– Planning
– Plan for Use
– Procurement
– Sustainability
See RIBA Plan of Work 2020
Overview for detailed guidance
on Project Strategies
Prepare Client Requirements
Develop Business Case for
feasible options including
review of Project Risks and
Project Budget
Ratify option that best delivers
Client Requirements
Review Feedback from
previous projects
Undertake Site Appraisals
No design team required for Stages 0 and 1. Client advisers may be appointed
to the client team to provide strategic advice and design thinking before Stage
2 commences.
Prepare Project Brief
including Project Outcomes
and Sustainability Outcomes,
Quality Aspirations and
Spatial Requirements
Undertake Feasibility Studies
Agree Project Budget
Source Site Information
including Site Surveys
Prepare Project Programme
Prepare Project Execution
Plan
Prepare Architectural
Concept incorporating
Strategic Engineering
requirements and aligned to
Cost Plan, Project Strategies
and Outline Specification
Agree Project Brief
Derogations
Undertake Design Reviews
with client and Project
Stakeholders
Prepare stage Design
Programme
Undertake Design Studies,
Engineering Analysis and
Cost Exercises to test
Architectural Concept
resulting in Spatially
Coordinated design aligned
to updated Cost Plan, Project
Strategies and Outline
Specification
Initiate Change Control
Procedures
Prepare stage Design
Programme
Develop architectural and
engineering technical design
Prepare and coordinate
design team Building
Systems information
Prepare and integrate
specialist subcontractor
Building Systems
information
Prepare stage Design
Programme
Specialist subcontractor designs
are prepared and reviewed during
Stage 4
Finalise Site Logistics
Manufacture Building
Systems and construct
building
Monitor progress against
Construction Programme
Inspect Construction Quality
Resolve Site Queries as
required
Undertake Commissioning
of building
Prepare Building Manual
Building handover tasks bridge Stages 5 and 6 as set out in the Plan for Use
Strategy
Hand over building in line with
Plan for Use Strategy
Undertake review of Project
Performance
Undertake seasonal
Commissioning
Rectify defects
Complete initial Aftercare
tasks including light touch
Post Occupancy Evaluation
Implement Facilities
Management and
Asset Management
Undertake Post Occupancy
Evaluation of building
performance in use
Verify Project Outcomes
including Sustainability
Outcomes
Adaptation of a building (at the
end of its useful life) triggers a new
Stage 0
Core Statutory
Processes
during the stage:
Planning
Building Regulations
Health and Safety (CDM)
Strategic appraisal of
Planning considerations
Source pre-application
Planning Advice
Initiate collation of health
and safety Pre-construction
Information
Obtain pre-application
Planning Advice
Agree route to Building
Regulations compliance
Option: submit outline
Planning Application
Review design against
Building Regulations
Prepare and submit
Planning Application
See Planning Note for guidance on
submitting a Planning Application
earlier than at end of Stage 3
Submit Building Regulations
Application
Discharge pre-
commencement Planning
Conditions
Prepare Construction
Phase Plan
Submit form F10 to HSE if
applicable
Carry out Construction
Phase Plan
Comply with Planning
Conditions related to
construction
Comply with Planning
Conditions as required
Comply with Planning
Conditions as required
Procurement
Route
Traditional Tender
Appoint
contractor
Design & Build 1 Stage ER CP
Appoint
contractor
Design & Build 2 Stage ER Pre-contract services agreement CP
Appoint
contractor
Management Contract
Construction Management
Appoint
contractor
Contractor-led ER Preferred bidder CP
Appoint
contractor
Information
Exchanges
at the end of the stage
Client Requirements
Business Case
Project Brief
Feasibility Studies
Site Information
Project Budget
Project Programme
Procurement Strategy
Responsibility Matrix
Information Requirements
Project Brief Derogations
Signed off Stage Report
Project Strategies
Outline Specification
Cost Plan
Signed off Stage Report
Project Strategies
Updated Outline
Specification
Updated Cost Plan
Planning Application
Manufacturing Information
Construction Information
Final Specifications
Residual Project Strategies
Building Regulations
Application
Building Manual including
Health and Safety File and
Fire Safety Information
Practical Completion
certificate including
Defects List
Asset Information
If Verified Construction
Information is required,verification
tasks must be defined
Feedback on Project
Performance
Final Certificate
Feedback from light touch
Post Occupancy Evaluation
Feedback from Post
Occupancy Evaluation
Updated Building Manual
including Health and
Safety File and Fire Safety
Information as necessary
Core RIBA Plan of Work terms are defined in the RIBA Plan of Work 2020 Overview glossary and set in Bold Type. Further guidance and detailed stage descriptions are included in the RIBA Plan of Work 2020 Overview. © RIBA 2020
Stage Boundaries:
Stages 0-4 will generally
be undertaken one after
the other.
Stages 4 and 5 will overlap
in the Project Programme
for most projects.
Stage 5 commences
when the contractor takes
possession of the site
and finishes at Practical
Completion.
Stage 6 starts with the
handover of the building to
the client immediately after
Practical Completion and
finishes at the end of the
Defects Liability Period.
Stage 7starts concurrently
with Stage 6 and lasts for
the life of the building.
Planning Note:
Planning Applications
are generally submitted
at the end of Stage 3 and
should only be submitted
earlier when the threshold
of information required has
been met. If a Planning
Application is made
during Stage 3,a mid-
stage gateway should be
determined and it should
be clear to the project team
which tasks and deliverables
will be required.
See Overview guidance.
Procurement:
The RIBA Plan of Work
is procurement neutral –
See Overview guidance for
a detailed description of
how each stage might be
adjusted to accommodate
the requirements of the
Procurement Strategy.
ER
Employer’s
Requirements
CP
Contractor’s
Proposals
RIBA
Plan of Work
2020
Appoint
client team
Appoint
design team
Appoint Facilities Management
and Asset Management teams,and
strategic advisers as needed

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credit: UKGBC

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Notes
Sustainability criteria
Minimum standard Best practice Innovative Pioneering
a
b
c
d
e
f
g
h
1. Embodied carbon in
fabric
2. Building and materials
re-use
3. Recycled and reclaimed
content
4. Material toxicity
5. Climate change
adaptation
6. Landscape
and biodiversity
Embodied carbon not assessed. Preference
stated for locally sourced materials
Preference for standard sizes of elements such
as steel beams/columns or precast units
15% recycled content likely as standard
Avoid high VOC content paints, sealants etc
and all ozone-depleting materials, including
insulation
Local planning requirements met. Mitigate
against negative biodiversity impacts
where feasible
No considerations beyond those embodied
in regulatory compliance
Commercial – >5.5m3
/person/yr
Schools – 4.4m3
/pupil/yr
Carry out Flood Risk Assessment. No increase
in run off
Contractor to produce Site Waste Management
Plan (SWMP) to identify waste streams and
areas for segregation on-site or post collection
Adequate space for storing recyclable waste
Some covered cycle storage
Use of industry standards. Standard client
briefing
Sourcing of office supplies and cleaning
products considered
Building has no or only a slight negative impact
on productivity. Meet regulation for internal
comfort, including air quality
Structure engineered to minimise material mass. Cement
replacements, eg GGBFS. Materials specified to be from
local sources
High-grade elements designed for recyclability. Future
flexibility of building considered
30% recycled content
PVC cabling exchanged for LSF. No petro-chemical
based insulation materials. All ‘C’ rated materials avoided
Detailed life cycle analysis for material selection.
Low carbon materials where possible. Structure
engineered to work at 90% capacity [Wise]
Building flexibility document produced. Most materials
and structure designed for dismantling
45% recycled content
‘B’ and ‘C’ rated materials avoided. VOC-free paints
and timber. PVC-free building. Natural materials
where possible
Structure made from entirely low embodied carbon materials,
with known provenance. Building serviceability regulations
challenged [Wise]. Building carbon-profiled [Sturgis]
Flexibility or dismantling drives design. Label and log or e-tag
main elements
60% recycled content
Use only natural materials where products exist. 80% of
materials ‘A’ or ‘A+’ rated
Highly building specific.
Wise, Chris, ‘What If Everything
We Did Was Wrong?’,
www.building.co.uk.
Sturgis Associates, ‘Redefining
Zero’, www.rics.org
Only applies to relevant materials
Ratings refer to BRE Green
Guide
See TSB report ‘Design For
Future Climate’, 2010, and
Summer Targets in Energy sheet
Biodiversity is the variety of
species within an ecosystem,
used as a measure of the health
of biological systems
For more guidance see WRAP
Adequate cycling provisions can
require significant internal space
Consider space for food growth
Productivity highly subjective.
For more see www.cibse.org/
pdfs/8aratcliffe.pdf
Potential impacts reviewed with client, strategic principles
discussed and reported concerning key risks
Measures included in upgrade strategies to address
projected risks as appropriate for life expectancy of
building components
Consult an ecologist on biodiversity enhancement,
giving preference to local species. Integrated landscape
and water strategy. Landscape management plan
Commercial – 4.5m3
/person/yr
Schools – 3m3
/pupil/yr
Thorough site hydrological characterisation, design
responds to environment, including SUDs where
appropriate. Rainwater harvesting for WCs and irrigation
Establish waste streams during design, set key KPIs early
on. Waste reviews on design team meeting agendas. Divert
75% by weight of non hazardous project waste from landfill
Managed recycling processes involving space for separating
and collecting recyclables. Encourage occupants to recycle
Full cycling support provisions as part of travel plan. Utilise
video conferencing. Access considered in site selection
Stakeholder consultation. Stakeholders understand
standards and design
Sustainable procurement of office supplies, cleaning
products and food and monitoring of consumption
No impact on productivity. Connection to outside.
Air quality monitored
Develop Green Infrastructure Strategy. Landscape
works in harmony with building design and climate.
Extensive planting to reduce summer urban heat
island. Deciduous planting for shading windows
Biodiversity enhancement key driver in Green Infrastructure
Strategy. Landscape significantly influences building design
Design approach driven by climate change adaptation
implications with agreed emissions scenario and probabilistic
range appropriate to each key risk
7. Mains water
consumption
8. Drainage systems
9. Construction waste
minimisation
10. Operational waste
recycling
11. Transport
12. Stakeholder involvement
and design process
13. Sustainable procurement
of consumables
14. Healthy environments
Commercial – 1.5m3
/person/yr
Schools – 1.5m3
/pupil/yr
Flood risk defines site selection. Drainage sytem fully
integrated into environment. Consider reedbed
treatment for irrigation
Implement Modern Methods of Construction
throughout design. Account for site conditions
impacting waste. Materials logistics plan
Provide incentives for recycling. On-site composting
for biodegradable waste
Fully site-specific travel plan covering site
infrastructure and awareness raising. Electric vehicle
charging points. Utilise virtual video conferencing
Design strategy tested with stakeholders. New
boundaries set
All consumables sustainably procured. Mostly
paperless organisation. Some food grown on site
Slightly positive impact on productivity. Psychological
and social impacts assessed during design
Commercial – <1.5m3
/person/yr
Schools – 0.5m3
/pupil/yr
Closed loop water system. Waste-to-Energy plant or alterna-
tives to water based foul drainage
Achieve zero net waste for project
Waste stream feeds on or off-site anaerobic digestion for
biogas production
Feed transport into personal carbon trading scheme.
Accessibility drives site selection
Feed back the results of briefing and design process into
industry standards
Some organic food grown on site, with the rest seasonal, local
Building has noticeable positive impact on productivity. Strive
to create a ‘sense of place’
a: Construction
materials
b: Climate change
adaptation
c: Landscape and
biodiversity
d: Water
e: Waste
f: Transport issues
g: Management
h: Productivity
and health
WIDER SUSTAINABILITY PARAMETERS TO BE USED IN CONJUNCTION WITH ENERGY CRITERIA

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A+Sustainability Matrix: Universal decoding sustainability beyond energy and balancing green ambitions with the budgetary realities of clients
based on Max Fordham Sustainability Matrix
V_00.01 - DRAFT: work in progress - 22/07/11
Minimum standard Best Practice Innovative Pioneering Notes + Other Commitments
materials NB! In case of not reaching the minimum standard goals, following mitigation strategy applies: The cost of embodied carbon will be offsetted through a respective organisation.
a.
Embodied carbon materials preference for locally/regionally sourced
(400km)
low carbon where possible cement replacement known origin
life cycle materials and solutions that can be recycled. life cycle analysis building carbon-profiled /Sturgis/
structure Minimized mass Work with structural engineer on reducing
overdimensioning factor
Waste
management
prevention preference for standard sizes high grade elements Mostly designed for dismantling labelled and loged or e-tagged elements
reuse Future reuse taken into consideration Reuse strategy documented designed to dismantle
recycle preference for recycled content commitment for recycled content always recycle when available Min. 50% documented
Toxicity natural materials where possible where product exists
VOC content avoid VOC-free paints and timber
ODP / petrochmicals avoid none in insulation; LSF cabling PVC-free building
Material rating C avoided B avoided 80% A or A+
energy NB! In case of not reaching the minimum standard goals, following mitigation strategy applies: The client will commit to sign up to green energy supplier.
b.
Building fabric U-values (wall/window/roof) 0,35/1,8/0,25 (wall/window/roof): 0,2/1,4/0,15 (wall/window/roof): 0,15/1,1/0,12 (wall/window/roof): 0,1/0,8/0,1
Airtightness at 50MPa 10 m3/hm2 5 m3/hm2 2 m3/hm2 1 m3/hm2
Thermal mass Assesment Design
Generation electrical aim for 20% 30,00% 50-100% Min. 100%
Consumption Heating + Cooling 25 kWh/m2/yr 18 kWh/m2/yr 15 kWh/m2/yr 11 kWh/m2/yr
Ventilation natural where possible night cooling, heat recovery assisted natural for summer peak pre-cooled air for summer peak
lighting Low energy fittings daylight compensating dimming New technologies (LEDs,...)
Climate crisis
adaptation
general regulatory compliance strategic principles discussed with client
strategy report concerning key risks
appropriate measures for life expectancy of
building components
agreed emissions scenario
set range appropriate to each key risk
EPC rating B+ A A+ A+ and energy generation
operational emmissions 20 kgCO2/m2/yr 15 kgCO2/m2/yr 10 kgCO2/m2/yr 0 kgCO2/m2/yr
landscape NB! In case of not reaching the minimum standard goals, following mitigation strategy applies: The client will commit to invest in biodiversity projects.
c.
Preservation
regulatory compliance
Integrated landscape and water strategy Green Infrastructure Strategy
extensive + deciduous planting
Influences building design
Biodiversity regulatory compliance Preference to local species Consult an ecologist
resources NB! In case of not reaching the minimum standard goals, following mitigation strategy applies: The client will commit to invest in water-treating projects.
d.
Water consumption water saving fixtures consumption assesment consumption monitoring
Drainage systems Rainwater SuDS where appropriate for WCs and irrigation integrated with environment closed loop water system
Reuse Reedbed treatment for irrigation Alternative to water based foul drainage
Waste
management
construction waste regulatory compliance set KPIs + waste reviews on site agenda modern methods of construction
account for site conditions impacting waste
Materials logistics plan
achieve zero net waste for project
operational waste designed storage for recyclables and
compost
processes managed, encouraged on-site composting compost supplies biogas production
building in use NB! In case of not reaching the minimum standard goals, following mitigation strategy applies:
User involvement Guide standard log book with O&M manual non-technical user guide New boundaries set
Briefing hand-over meeting explaining standards and design to users Soft landings framework results fed back into industry
energy Users involved in commissioning guided, interactive and online
design strategy tested with clients
e.
Monitoring general 1st year monitoring & smart metres responsibility to respond on reports
full post occupancy evaluation
Anonymized external reporting
Continual monitoring and fine-tuning
Formal external review
Results published to industry

46. Webinar Coordinator,
Architecture Focus
Pedro Clarke
Director, Principal Architec
t
Stephanie Braswell
/in/pedro-clarke /in/stephanie-braswell
architecturefocus.com
Q&A
a-architecture.org