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![Page 1: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/1.jpg)
ENVIROSPEC
Benchmarking and Specification of Sustainable Building Products
ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.
![Page 2: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/2.jpg)
ENVIROSPEC
“…..there is a real danger that the ecolabels may fail to provide enough precise data on the in-service performance for each product, under a range of applications and climates….. If unchecked, this could lead to poor decision-making and the selection of products, which appear to be environmentally friendly, but are, in fact, inappropriate for the actual application. ….”
From: “Benchmarking and Specification of Sustainable Building Products”, Johnston, R, Gogstad, P, & Woolcock, J, UAE, 2009.
The Dilemma of Green Marketing
![Page 3: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/3.jpg)
ENVIROSPEC
“…..there is a real danger that the ecolabels may fail to provide enough precise data on the in-service performance for each product, under a range of applications and climates….. If unchecked, this could lead to poor decision-making and the selection of products, which appear to be environmentally friendly, but are, in fact, inappropriate for the actual application. ….“
From: “Benchmarking and Specification of Sustainable Building Products”, Johnston, R, Gogstad, P, & Woolcock, J, UAE, 2009.
The ENVIROSPEC Protocol sets guidelines for Benchmarking and Life Cycle Assessment, accounting for both in-service and embodied properties.
The Dilemma of Green Marketing
![Page 4: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/4.jpg)
ENVIROSPEC
Consider single-glazed and double-glazed windows.
The Dilemma of Green Marketing
![Page 5: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/5.jpg)
ENVIROSPEC
Consider single-glazed and double–glazed windows.
• The embodied energy of a double-glazed window is approximately twice that of a single-glazed window.
• However, the in-service thermal performance of double-glazing is often far superior to that of single-glazing – but not in all climates, all comfort level regimes or in all common combinations of free-running and air conditioning.
The Dilemma of Green Marketing
![Page 6: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/6.jpg)
ENVIROSPEC
Consider single-glazed and double–glazed windows.
• The embodied energy of a double-glazed window is approximately twice that of a single-glazed window.
• However, the in-service thermal performance of double-glazing is often far superior to that of single-glazing – but not in all climates, all comfort level regimes or in all common combinations of free-running and air conditioning.
The Dilemma:
1. When a specification is written for windows, which is the most sustainable - single glazing or double glazing?
2. Should double-glazing and single-glazing be grouped together in common specifications; or separated by application?
3. This very complicated dichotomy must be given prominence in any ecolabelling scheme.
The Dilemma of Green Marketing
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ENVIROSPEC
Consider shower heads.
The Dilemma of Green Marketing
![Page 8: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/8.jpg)
ENVIROSPEC
Consider shower heads.
• Most regulators and designers agree with the selection of water-efficient shower heads.
• However, shower heads could be used in a region of:
o High rainfall area, serviced by an efficient hydro-electric supply; or
o Low rainfall area, serviced by energy generated by burning hydrocarbons.
The Dilemma of Green Marketing
![Page 9: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/9.jpg)
ENVIROSPEC
Consider shower heads.
• Most regulators and designers agree with the selection of water-efficient shower heads.
• However, shower heads could be used in a region of:
o High rainfall area, serviced by an efficient hydro-electric supply; or
o Low rainfall area, serviced by energy generated by burning hydrocarbons.
• We need to be clear, when framing regulations, what we are tying to achieve:
o Saving water
o Saving energy
o Saving greenhouse gas emissions.
The Dilemma of Green Marketing
![Page 10: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/10.jpg)
ENVIROSPEC
Consider masonry walls.
The Dilemma of Green Marketing
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ENVIROSPEC
Consider masonry walls.
• In winter, heat trying to pass through a wall of high thermal mass will become trapped in the wall, and part will slowly pass back into the room.
• In summer the reverse occurs. Heat trying to pass through a wall of high-thermal mass from the outside will become trapped and part will slowly pass back out of the building.
The Dilemma of Green Marketing
![Page 12: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/12.jpg)
ENVIROSPEC
Consider masonry walls.
• In winter, heat trying to pass through a wall of high thermal mass will become trapped in the wall, and part will slowly pass back into the room.
• In summer the reverse occurs. Heat trying to pass through a wall of high-thermal mass from the outside will become trapped and part will slowly pass back out of the building.
• However, this phenomenon is only significant in relatively benign climates, where the ambient temperature crosses the comfort level .
The Dilemma of Green Marketing
![Page 13: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/13.jpg)
ENVIROSPEC
Consider masonry walls.
• In winter, heat trying to pass through a wall of high thermal mass will become trapped in the wall, and part will slowly pass back into the room.
• In summer the reverse occurs. Heat trying to pass through a wall of high-thermal mass from the outside will become trapped and part will slowly pass back out of the building.
• However, this phenomenon is only significant in relatively benign climates, where the ambient temperature crosses the comfort level .
How should marketers and specifiers account for thermal mass in:
a. Benign climates ?
b. Severe climates ?
The Dilemma of Green Marketing
c
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ENVIROSPEC
Sustainability can only properly be assessed by considering:
1.Embodied characteristics (energy, green-house gas, water, toxicity)
and
2.In service performance, which is affected by:
• The climate where the product is to be installed
• The building application.
The Dilemma of Green Marketing
![Page 15: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/15.jpg)
ENVIROSPEC
Sustainability can only properly be assessed by considering:
1.Embodied characteristics (energy, green-house gas, water, toxicity)
and
2.In service performance, which is affected by:
• The climate where the product is to be installed
• The building application.
The art of green marketing is to:
1.Honestly identify sustainable products
2.Clearly quantify and benchmark the contribution to sustainability
3.Distribute technical data to Architects, Engineers and Builders.
Whilst retaining scientific quantitative assessment, we must remove the “black-magic” from the art of sustainability.
The Dilemma of Green Marketing
c
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ENVIROSPEC
Environmental Benchmarking
Environmental Benchmarking is:
the comparison of a product’s life-cycle analysis
and other environmental data to those of the
most common acceptable alternative,
“benchmark construction”.
![Page 17: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/17.jpg)
ENVIROSPEC
Environmental Benchmarking
Environmental Benchmarking is:
the comparison of a product’s life-cycle analysis
and other environmental data to those of the
most common acceptable alternative,
“benchmark construction”.
The logical “benchmarks” are those forms of construction which are both:
•the most economical; and
•in compliance with the current building regulations.
..... in other words, the construction most likely to be built, if sustainability criteria were not applied.
![Page 18: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/18.jpg)
ENVIROSPEC
Environmental Benchmarking
Environmental Benchmarking is:
the comparison of a product’s life-cycle analysis
and other environmental data to those of the
most common acceptable alternative,
“benchmark construction”.
Any improvement over “benchmark construction” may be considered as a step towards sustainability.
The logical “benchmarks” are those forms of construction which are both:
•the most economical; and
•in compliance with the current building regulations.
..... in other words, the construction most likely to be built, if sustainability criteria were not applied.
![Page 19: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/19.jpg)
ENVIROSPEC
Environmental Benchmarking – Example - Energy
Performance may be demonstrated by the following example: 1. Calculate the embodied energy of the Product throughout its life-cycle, Epe.
2. Calculate the operational energy consumption of the building, incorporating the Product, throughout its life-cycle, Epo.
3. Calculate the embodied energy of the Benchmark Construction (that the Product is intended to replace) throughout its life-cycle, Ebe. 4. Calculate the operational energy consumption of the building, incorporating Benchmark Construction, throughout its life-cycle, Ebo. 5. Determine the net increase or decrease in total energy use if the Product is used in lieu of Benchmark Construction, from the following.
Net Energy = Total energy for Product – Total energy for Benchmark Construction = ( EpeN + EpoN) – ( EbeN + EboN)
6. Report the Net Energy (increase or decrease), together with full calculations.
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ENVIROSPEC
ENVIROSPEC
LCI/LCA - Currently various organizations are collecting data for the creation of a Life Cycle Inventory (LCI) databases.
LCI/LCA
Data Base
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ENVIROSPEC
ENVIROSPEC
LCI/LCA - Currently various organizations are collecting data for the creation of a Life Cycle Inventory (LCI) databases.
Design Process - This data will be used to populate design software, enabling designers to minimise environmental impacts.
LCI/LCA
Data Base
Design Process
Design & Rating
Software
![Page 22: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/22.jpg)
ENVIROSPEC
ENVIROSPEC
LCI/LCA - Currently various organizations are collecting data for the creation of a Life Cycle Inventory (LCI) databases.
Design Process - This data will be used to populate design software, enabling designers to minimise environmental impacts.
Building Product Ecolabels may be prepared using the LCI data LCI/LCA
Data Base
Design Process
Design & Rating
Software
Ecolabelling
ISO 14024 etc
![Page 23: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/23.jpg)
ENVIROSPEC
ENVIROSPEC
LCI/LCA - Currently various organizations are collecting data for the creation of a Life Cycle Inventory (LCI) databases.
Design Process - This data will be used to populate design software, enabling designers to minimise environmental impacts.
Building Product Ecolabels may be prepared using the LCI data -
BUT, as noted previously, Ecolabels may be too limited to provide comprehensive design information for each conceivable application.
LCI/LCA
Data Base
Design Process
Design & Rating
Software
Ecolabelling
ISO 14024 etc
![Page 24: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/24.jpg)
ENVIROSPEC
ENVIROSPEC
LCI/LCA - Currently various organizations are collecting data for the creation of a Life Cycle Inventory (LCI) databases.
Design Process - This data will be used to populate design software, enabling designers to minimise environmental impacts.
Building Product Ecolabels may be prepared using the LCI data -
BUT, as noted previously, Ecolabels may be too limited to provide comprehensive design information for each conceivable application.
ENVIROSPEC presents building product specifications • in a technically credible format• geared specifically for use by designers • tailored for marketing innovative building products • using LCA techniques• “benchmarked” for particular applications.
LCI/LCA
Data Base
Design Process
Design & Rating
Software
Ecolabelling
ISO 14024 etc
ENVIROSPEC
Protocol based on ISO 14044 ISO/DIS 21930
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ENVIROSPEC
Case Study - Abu Dhabi, Saadiyat Island – Accommodation
ProjectIn 2008, House Energy Rating was commissioned to assess the energy efficiency and thermal comfort of a 20,000 person camp at Saadiyat Island, consisting of stackable modular accommodation units.
Conclusions
• The energy use in the buildings is dictated principally by the number of occupants,
• It is quite possible to have a potentially very energy efficient building with little net energy use.
• Performance for this particular development is driven by the hot local climate.
• Protecting the sub-floor spaces from external conditions resulted in the most significant reduction in overall energy use, up to 50% reduction in overall cooling load.
• Reductions to the external surface absorptance of the building, and incorporation of roof design features also had a beneficial effect on thermal performance.
House Energy Rating is an Australian based sustainability consultant, and a partner of Building Product Certification Pty Ltd (part of the Electronic Blueprint Group).
From: “Benchmarking and Specification of Sustainable Building Products”, Johnston, R, Gogstad, P, & Woolcock, J, UAE, 2009
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ENVIROSPEC
“…..there is a real danger that the ecolabels may fail to provide enough precise data on the in-service performance for each product, under a range of applications and climates….. If unchecked, this could lead to poor decision-making and the selection of products, which appear to be environmentally friendly, but are, in fact, inappropriate for the actual application. ….“
From: “Benchmarking and Specification of Sustainable Building Products”, Johnston, R, Gogstad, P, & Woolcock, J, UAE, 2009.
The ENVIROSPEC Protocol sets guidelines for Benchmarking and Life Cycle Assessment, accounting for both in-service and embodiedproperties.
Benchmarking and Specification of Sustainable Building Product
![Page 27: ENVIROSPEC Benchmarking and Specification of Sustainable Building Products ENVIROSPEC is the environmental division of ELECTONIC BLUEPRINT.](https://reader030.fdocuments.net/reader030/viewer/2022032517/56649ca75503460f9496974a/html5/thumbnails/27.jpg)
ENVIROSPEC
Rod Johnston
• Technical
• Electronic Blueprint – ENVIROSPEC
Per Gogstad
• Sales - UAE
• AEC Online – ENVIROSPEC
For Further Assistance