Environmental performance of buildings

Division: Building Quality
Environmental
performance of
buildings
Ministry BZK:
Piet van Luijk
Harry Wever
Webinar July 11th, 2014
Content presentation
•
Goal meeting
•
Definition “Sustainable Buildings”
•
Development “Sustainable Building”
in the Netherlands
•
Method to calculate the environmental
performance of a building + database
•
Building Decree: policy and practice
•
European developments
•
Challenges: chain responsibility and consumers
1. Goal meeting
Information exchange
Experience on Sustainable
Building in the Netherlands
Explenation about the
(material) environmental
performance regulation /
determination method and
national database
3. Development of “Sustainable Building” in the Netherlands
Policy:
Goal: decrease environmental impact and resource-efficiency
Approach:
From the National Packages on Sustainable Building to one (uniform)
determination method for the environmental impact of constructing
and maintenance of the building (including re-use and recycling)
Aspects:
1. Energy
2. Materials
3. Health
2. Definition “Sustainable Buildings”
Sustainable buildings
People
Profit/
Prosperity
Planet
Health
Materials
Energyefficiency
Works
Products
Aspect : materials
- Whole life cycle of materials
and products (construction)
- Environmental impact LCAbased (impact assessment)
Scope: Construction Sector
- Residential and office buildings
- Civil/infrastructure works
Essential requirement (assignment) – performance based :
- on the level of buildings/works (not products/materials)
- threw the whole life cycle of the building /work
Environmental data (LCA-based) – product specifications
Agreement on product specifications (uploaded in NMD)
Demand construction sector: one calculation method for both
public and private purposes
Green public procurement (new office buildings)
x points
100% of workplaces designed
for prolonged use minimum
DF > 3.0%
x points
x points
50% self-generation
Level A2
80% better than the
base value
x points
25% better than level C
x points
x points
Level B1
65% better than the
base value
25% self-generation
20% better than level C
Class B
x points
x points
(see Explanatory note)
x points
Level B2
50% better than the
base value
Daylighting
permanent workplace for use
> 2 hours
(see Explanatory note)
Thermal comfort,
Class A
x points
Purge ventilation
30% better than level C
Indoor Air Quality, ventilation
capacity
Noise in usable floor areas,
Workplaces
100% better than the
base value
Health in buildings
Environmental performance
Level A1
Materials
Self-generation of renewable
energy
Energy performance
Energy
No higher level indicated
6 dm3/s per m2 of usable
floor space
x points
Class A
x points
x points
10% self-generation
15% better than level C
x points
x points
100% of workplaces designed
for prolonged use minimum
DF > 2.0%
x points
x points
Level C
35% better than the
base value
No level indicated
0 points
€ 1.30/m2 GFA
Class C
8.3 dm3/s.pp
+ 100% Sustainable timber
procurement
(see Explanatory note)
0 points
3 dm3/s per m2 of usable
floor space
Or:
0 points
0 points
6 dm3/s per m2 of usable
floor area
Class B
(see BF-HB
NVBV)
100% of workplaces designed
for prolonged use minimum
DF > 1.0%
0 points
0 points
No level indicated
Building Decree 2012
0 points
Statutory
base level
Building Decree
2012
No level indicated
No level indicated Calculation
required in Building Decree 2012
Building Decree 2012
Building Decree 2012
(6.5 dm3/s pp)
No level indicated
4. Method to calculate the environmental performance
of a building (+ national environmental database)
A harmonised determination method
Goal: to encourage conscientious decisions in different
construction phases, from to design - maintenance to the
re-use of the building and recycling of the materials after
demolition.
Prior condition:
1. freedom in design/choice in materials.
2. performance based (limit value on the level of works).
One uniform determination method : relation EPD – Building
National Environmental
Database (Environmental
Product Declarations)
Performance assessment
determination method
mandatory
Relation LCA/milieu-effects- data in Environmental Database (optie: toevoegen relatie met schaduwkosten)
Relation LCA/environmental aspects – national database
Organisation Environmental performance Building & Infrastructure
works
National Environmental Database (NMD)
2
3
5. Dutch Building Decree 2012: policy and (good) practice
Obligation: sustainability report for new build dwellings & office buildings
2013: determination method : “Environmental performance Building
and Infrastructure works” incl. National Environmental Database
No performance levels yet, only the calculation as such is mandatory
2013: Further development determination method and database
2013/2014: monitoring building plans
2014: European development / Policy Sustainble Buildings
2015: Limit value for buildings?
6. European developments
•
•
•
•
•
•
Resource Efficiency Roadmap (2011)
Eco Innovation Action Plan
Eco Design
European standards (CEN TC 350 / EN 15978 and 15804)
CPR/BWR7: Sustainable Use of natural resources, recycling
Communication on Sustainable Building
Relation to European policy
Relation to European standards
- LCA-approach
- Stages in building life cycle:
- Products and materials
- Construction process
- Use phase : maintenance
- End of life (cradle to cradle)
- In line with European standards
EN 15978 and EN 15804
7. Challenges
a. Chain responsibility
b. Consumers
c. Future Incentives
d. ..