Green Building Design and Energy Efficiency.pdf

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1. Green Building
Design & Energy
Efficiency
14/05/2018
1CONFIDENTIAL Author 16 February, 2024© ROCKWOOL Asia

2. Contents
2
1
2
3
3.1
Sustainability & Green
Building Design
Product Qualification with
LEED
Energy Simulation of
Office Building
Energy Consumption
Profile
CONFIDENTIAL Author 16 February, 2024© ROCKWOOL Asia
3.2
Energy Reduction with
Insulation

3. 3CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia
Sustainability &
Green Building
Design

4. Climate Change
4CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

5. Climate Change
5CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

6. Sustainability
6
Dr. Gro Harlem Brundtland : 1987 UN
Report of the World Commission on
Environment and Development: Our Common
Future
“ development that meets
the needs of the present
without compromising the
ability of future generations
to meet their own needs. ”
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

7. Green Building Design
7
▪Sustainable site planning with bioclimatic
architectural planning
▪Incorporate solar passive techniques
▪Design energy efficient lighting and HVAC
▪Use low energy and renewable materials
▪Construction materials - zero or low
emissions to improve indoor air quality
▪May cost more initially, but can yield
savings over time, usually 3-15%.
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

8. Buildin
g
Design
Climatic
Conditions
Comfort and Energy
Urban Heat Island
and
Climate Change
Role of the Building Industry
Passive building design
▪High thermal efficient building fabric
▪Reduce building cooling load
▪Improve occupants comfort
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 8

9. How to Achieve Zero Energy?
9
▪ Cold Climate:
▪ High insulation levels
▪ All parts of building
▪ Efficient windows
▪ Keep heat in
▪ Optimal use of passive solar
▪ Passive house
▪ Efficient heating, ventilation
▪ Use of renewable energy
▪ Solar thermal
▪ Holistic approach
▪ Efficient products
▪ Hot Climate:
▪ High insulation levels
▪ In particular roof, east, west
▪ Efficient windows
▪ Keep heat out
▪ Optimal use of shading
▪ Greening of facades
▪ Efficient cooling, ventilation
▪ Use of renewable energy
▪ PV Photo Voltaic
▪ Holistic approach
▪ Efficient products
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

10. Green Product
10
▪Energy efficient, durable and low maintenance
requirements
▪Free of Ozone depleting chemicals, toxic compounds
▪Recycled materials or from renewable/sustainable
sources.
▪ROCKWOOL products for application for thermal and
acoustical performances
▪Slab – To suit areas where insulation rigidity is
required
▪Blanket – For ease of installation covering large area
with single roll is required
Interio
r Wall
Interio
r
Ceiling
HVAC
Facade
Roof
ThermalRock
Blanket
ThermalRock Slab
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

11. 11CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia
2
Product
Qualification
with LEED

12. Whatis LEED
▪LEED, or Leadership in Energy and
Environmental Design, is redefining the way
we think about the places where we live, work
and learn.
▪LEED provides building owners and operators
with a framework for identifying and
implementing practical and measurable green
building design, construction, operations and
maintenance solutions.
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 12

13. EA Credit 1 – Optimise Energy Performance
EA Credit 1 intents to achieve increasing levels of energy
performance beyond the prerequisite standard to reduce
environmental and economic impacts associated with
excessive energy use.
Percent Savings =
100 ×
ROCKWOOL insulation provides excellent thermal
resistance with a low U-Value and contribute to energy
saving in terms of improving the efficiency of energy
consumed through consistent thermal performance.
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 13

14. MR Credit 2 – Construction Waste Management
▪MR Credit 2 intents to divert construction and demolition debris from disposal in landfills and
incineration facilities.
▪ROCKWOOL products are dimensionally stable and sag resistant and when removed undamaged,
may be reused and recycled for other projects, enhancing performances and reducing construction
waste.
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 14

15. MR Credit 4 – Recycled Content
▪MR Credit 4 intents to increase demand for building products that incorporate recycled content
materials, thereby reducing impacts resulting from extraction and processing of virgin materials.
▪ROCKWOOL products contains up to 20% pre-consumer recycled materials. This does not only
reduce the impact that results from the extraction and processing of raw materials, but also reduce
the volume of solid waste that is produced as a byproduct of our built environment
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 15

16. IEQ Credit 3.2 – Construction Indoor Air Quality Management Plan (Before
Occupancy):
IEQ Credit 3.2 intents to reduce indoor air quality problems resulting from construction or renovation
to promote the comfort and well-being of construction workers and building occupants.
Contaminant Maximum Concentration
(Required by LEED)
ROCKWOOL ThermalRock S40 Emission
Test
Formaldehyde 27 parts per billion <0.02 micrograms per cubic meter per
hour
Particulates (PM10) 50 micrograms per cubic meter<0.02 micrograms per cubic meter
Total volatile organic compounds (TVOCs) 50 micrograms per cubic meter0.02 micrograms per cubic meter per hour
4-Phenylcyclohexene 6.5 micrograms per cubic meterNot Detected
Carbon monoxide (CO) 9 part per million and no greater
than 2 parts per million above
outdoor levels
The production of stone wool products do
not contain any component of Carbon
monoxide, hence Rockwool products do
not have CO emission
Contaminant Maximum Concentration
(Required by LEED)
ROCKWOOL ThermalRock S40 Emission
Test
Formaldehyde 27 parts per billion <0.02 micrograms per cubic meter per
hour
Particulates (PM10) 50 micrograms per cubic meter<0.02 micrograms per cubic meter
Total volatile organic compounds (TVOCs) 50 micrograms per cubic meter0.02 micrograms per cubic meter per hour
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 16

17. 17CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia
3
Energy
Simulation of
Office Building

18. Why are We Concern?
18
Buildings are the biggest energy consumer and a major CO
2polluter
33%
of all energy in EU is
used for transport
26%
of all energy in EU is
used by industry
41%
of all energy in EU is used
by buildings
2/3 of energy consumption in buildings is
used for heating, cooling and ventilation
Up to 90% of this expensive energy is needlessly
wasted
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

19. Total Building Area (m
2
) 4982.19 (3-storey)
Net Conditioned Building Area
(m
2
)
4982.19
Unconditioned Building Area
(m
2
)
0
Weather File Kuala Lumpur, Malaysia
Window-to-wall ratio 33%
Gross Roof Area 1660.7
Air-conditioning setting at
22deg C
7:00am – 18:00pm On
18:00pm – 7:00am Off
Simulation Model Information – Office Building
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 19

20. Building simulation construction details
20
Flat Roof 200mm thick concrete slab
+ Acoustic ceiling tile
External WallGlazing + Wall air space resistance +
12.7mm gypsum board
Ceiling Acoustic ceiling tile with grid system
Base case energy consumption without insulation
Total Energy Consumption : 2884.67 GJ
Building Energy Intensity : 161 Kwh/m
2
/year
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

21. What is , U & R-values
21
K () is the thermal conductivity, SI units W/mK
 = K-value measured in W/mK
R is thermal resistance, SI units m
2
K/W (R=1/U)
R-Value = t /  where, R = R-value
t = thickness of material
U is thermal transmittance, SI units W/m
2
K (U=1/R)
. U-Value = 1 / R
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

22. Simulation 1
–Roof with Insulation
22
External Wall Glazing + Wall air space resistance + 12.7mm
gypsum board
Ceiling Acoustic ceiling tile with grid system
Flat Roof 200mm thick concrete slab with ROCKWOOL
Insulation 50mm
R-value 1.93 m²K/W
U-value 0.52 W/m²K
Baseline ≤ 0.6 W/m²K
Total Energy Consumption : 2795.01 GJ
Base Case Energy Consumption : 2884.67 GJ
Energy Saving : 3.1%
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

23. Simulation 2
–Ceiling with Insulation
23
Flat Roof200mm thick concrete slab
+ Acoustic ceiling tile
External
Wall
Glazing + Wall air space resistance +
12.7mm gypsum board
CeilingAcoustic ceiling tile with grid system +
ROCKWOOL Insulation 50mm thick
Total Energy Consumption : 2759.04 GJ
Base Case Energy Consumption : 2884.67 GJ
Energy Saving : 4.36%
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

24. Simulation 3
External wall with Insulation
24
Roof 200mm thick concrete slab
+ Acoustic ceiling tile
External
wall
Glazing + Wall air space resistance +
12.7mm gypsum board
+ ROCKWOOL Insulation 50mm thick
R-value 1.72 m²K/W
U-value 0.58 W/m²K
OTTV 63.68 W/m²
Total Energy Consumption : 2652.76 GJ
Base Case Energy Consumption : 2884.67 GJ
Energy Saving : 8%
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

25. Thermal Bridging in Building Envelope
25CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

26. Thermal Bridging in Building Envelope
26
ThermalRock Slab
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia

27. U-value
Elements
No insulationRoof +
ROCKWOOL
insulation
Ceiling +
ROCKWOOL
insulation
External wall +
ROCKWOOL
insulation
Roof, external wall
& ceiling +
ROCKWOOL
insulation
Flat Roof 2.17W/m²K 0.52W/m²K 2.17W/m²K 2.17W/m²K 0.52W/m²K
External Wall 4.07W/m²K 4.07W/m²K 4.07W/m²K 0.58W/m²K 0.58W/m²K
Ceiling 2.08W/m²K 2.08W/m²K 0.51W/m²K 2.08W/m²K 0.51 W/m²K
Energy
consumption
2884.67GJ 2795.01 GJ 2759.04 GJ 2652.76 GJ 2496.65GJ
Energy
reduction
0 3.1% 4.36 % 8% 13.45%
Cost saving/
annum (USD)
0 3,417 4,504 8,316 13,912
Return of
Investment
(Year)
0 2.83 6.06 1.3 3.40
3-storey office energy design
Energy Reduction With Insulation
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 27

28. 28CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia 28CONFIDENTIAL Author 16 February, 2024© ROCKWOOL Asia
Questions?

29. 2929
Thank you
CONFIDENTIAL  Author  7 July, 2018  © ROCKWOOL Asia