glass windows in building envelope & energy efficiency 2 emelito punsalan... · glass windows...
TRANSCRIPT
![Page 1: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/1.jpg)
Glass Windows
In Building Envelope & Energy
Efficiency
Emelito Punsalan
United Architects of the Philippines
UAP- Green Architecture Movement
Philippine Green Building Initiative
ASHRAE, Philippines Chapter
LR Punsalan & Associates
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 2: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/2.jpg)
HISTORY
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 3: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/3.jpg)
HISTORY
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 4: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/4.jpg)
HISTORY
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 5: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/5.jpg)
HISTORY
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 6: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/6.jpg)
SITUATIONER
There is
demand for buildings
Energy Cost
Climate Change
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 7: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/7.jpg)
Arc
ht E
C P
unsala
n –
Susta
inabili
ty &
Gre
en B
uild
ings-P
GB
I T
echnic
al S
em
inars
, 2011
http://www.businessinsider.com/images-of-the-philippines-before-and-after-super-typhoon-haiyan-2013-11?op=1
SITUATIONER
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 8: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/8.jpg)
http://i133.photobucket.com/albums/q70/changturtle/
religion/globalwarming.jpg?t=1229109606
http://www.theguardian.com/environment/2013/nov/18/typhoon-haiyan-spur-climate-change-action
Photograph: NOEL CELIS/AFP/Getty Images
http://www.citynews.ca/2013/11/21/taclobans-children-face-uncertain-future-after-
typhoon-haiyan/ GETTY IMAGES/AFP PHOTO/Ted Aljibe.
SITUATIONER
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 9: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/9.jpg)
http://healthandenergy.com/images/smokestack_tall.jpg
http://healthandenergy.com/images/smog_in_the_city.jpg
http://www.napocor.gov.ph/generations/MY
WEB/images/Plant%20Pics/Masinloc.jpg
SITUATIONER
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 10: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/10.jpg)
Buildings account
for 36% of the
national energy
consumption
10
2010 ENERGY CONSUMPTION BY SECTOR
BUILDINGS
36%
INDUSTRY
26%
TRANSPORT
37%
AFF
1%
Energy Use Profile in the Philippines
2010 DOE Key Energy Statistics Philippines
SITUATIONER
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 11: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/11.jpg)
Electrical Consumption Projection (2011 to 2030) 11
Power Consumption Data from DOE Power Statistics, 2011; Conversion to GHG emissions using US EPA Calculator
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
SITUATIONER
![Page 12: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/12.jpg)
12
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
SITUATIONER
![Page 13: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/13.jpg)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
1 2 3 4 5 6 7 8 9 10 11
Infl
atio
n R
ate
in %
Year 2000
Ave. Inflation Rate 4.5%
-
20,000
40,000
60,000
80,000
100,000
120,000
140,000
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Industrial
Commercial
Residential
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
SITUATIONER
![Page 14: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/14.jpg)
http://img.alibaba.com/photo/206948658/Angle_Steel_Tower.jpg
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
SITUATIONER
![Page 15: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/15.jpg)
24 HOURS
WIND
HUMIDITY
POLLUTION
NOISE
DIAGNOSIS
The Building Envelope
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 16: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/16.jpg)
…encompasses the entire exterior surface of a
building, including walls, doors, and windows, which enclose, or envelop, the interior
spaces.
-Barbara Nadel FAIA, 21st Century Building Envelope Systems
AIA/Architectural Record Continuing Education Series
The Building Envelope
BUILDING ENVELOPE
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 17: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/17.jpg)
Mold and mildew
BUILDING ENVELOPE
Energy costs
Infiltration
Maintenance
Thermal
Lighting
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 18: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/18.jpg)
DESIGNING THE
BUILDING
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 19: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/19.jpg)
Compact Fluorescent Lamps (CFL) Tubular Fluorescent Lamps
Generally, walls are in Concrete / CHB.
Some have overhangs
Generally, tinted single glazing in
aluminum framing
Ave. WWR > 25%
Variable Refrigerant Flow (VRF) Chilled Water System < ½ use VSD
Office
Buildings
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 20: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/20.jpg)
Building Indoor
Protection
Building
Insulation
Shading Factor
Views & Daylight
Efficient Lamps
Lighting Power
Density
Lighting Control
Daylighting
Ventilation
Rates
Equipment
Efficiencies
AC Control
System Design
DIAGNOSIS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 21: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/21.jpg)
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 22: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/22.jpg)
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
MINIMUM STANDARDS
![Page 23: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/23.jpg)
BUILDING ENVELOPE
1. Thermal Heat Conduction &
Solar Heat Radiation
2. U-value and R-value for walls and
roof • U-value <= 0.151 (walls)
• R-value >= 6 (walls)
• U-value <= 0.044 (metal roof)
3. U-Value, SHGC and VLT for windows • U-value <= 0.47
• SHGC <= 0.35 (north)
<= 0.25 (south, east & west)
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 24: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/24.jpg)
Prescriptive Requirements
Maximum U-values;
Maximum Solar heat gain coefficient (SHGC) values;
Limited glazing area or Window-to-Wall Ratio (WWR).
If these requirements are met, the building envelope complies with
the Standards.
-CEC 2005 BUILDING ENERGY EFFICIENCY STANDARDS
MINIMUM STANDARDS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 25: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/25.jpg)
Mandatory Measures - The mandatory measures for
doors, windows, and skylights address the airtightness of
the units and how their U-factor and SHGC are
determined.
Certification & Labeling
-CEC 2005 BUILDING ENERGY EFFICIENCY STANDARDS
MINIMUM STANDARDS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 26: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/26.jpg)
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 27: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/27.jpg)
-CEC 2005 BUILDING ENERGY EFFICIENCY STANDARDS
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 28: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/28.jpg)
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 29: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/29.jpg)
MINIMUM STANDARDS
-2010 PSVARE STANDARD FOR ENERGY EFFICIENT BLDGS Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
G
lass W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 30: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/30.jpg)
30
Up to 55% More Efficient
Costs 6X more than BAU
OPPORTUNITIES
High Performing Windows
ISSUES
• Heat Conduction
• Solar Radiation
• Visual
Transmittance
BAU (2.5 - 3X inefficient
from ASHRAE 90.1) U-value 1.11
SHGC 0.86
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 31: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/31.jpg)
Comparative Analysis of Glass
Single Tinted Glazing Double Tinted Glazing
w/ Air Gap
-EFFICIENT WINDOWS COLLABORATIVE
OPPORTUNITIES
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 32: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/32.jpg)
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Double Low E High
Solar Gain w/ Argon Fill
Double Low E Low Solar
Gain w/ Argon Fill
-EFFICIENT WINDOWS COLLABORATIVE
OPPORTUNITIES
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
Comparative Analysis of Glass
![Page 33: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/33.jpg)
Determining Relative
Solar Heat Gain (RSHG)
Relative solar heat gain
(RSHG) is essentially the
same as SHGC, except
for the external shading
correction. It is calculated
by multiplying the SHGC
of the fenestration
product by an overhang
factor. If an overhang
does not exist, then the
overhang factor is 1.0.
-CEC 2005 BUILDING ENERGY EFFICIENCY STANDARDS
MINIMUM STANDARDS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 34: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/34.jpg)
MINIMUM STANDARDS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
-2010 PSVARE STANDARD FOR ENERGY EFFICIENT BLDGS
![Page 35: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/35.jpg)
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
2010 PSVARE STANDARDS RECOMMENDATIONS
Window
Orientation
Maximu
m U
Value as
per 2010
PSVARE
Std
Maximum
SHGC as
per 2010
PSVARE
Std
Recommended Minimum
Performing Window
Assembly
Min.
Overhang
dimension
to meet
required
SHGC
Min.
Distance/
height
between
window
sill and
bottom of
overhang
NORTH
Facing
0.47 0.34 Double 6 mm thk
Reflective Clear Glass
with 6 mm wide air gap
and in aluminum frame
with thermal breaks and
insulated spacers
750 mm 1.2
meters
EAST Facing 0.47 0.25 Double 6 mm thk glass
Tinted and Reflective
Glass; or Double Low-E
Reflective glass. Both
with 12.5 mm wide air
gap and in aluminum
frame with thermal
breaks and insulated
spacers
1. to 1.5
meters
for Non
Low-E
1.0 to 1.5
meters for
Low-E
1.0 to
1.50
meters
SOUTH
Facing
0.47 0.25
WEST Facing 0.47 0.25
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 36: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/36.jpg)
Maximum Window Area
Under the envelope component approach, the total
window area may not exceed 40% of the gross wall area
(encompassing conditioned space) for the building.
Likewise, the west facing window area may not exceed
40% of the west gross wall area
MINIMUM STANDARDS
-2010 PSVARE STANDARD FOR ENERGY EFFICIENT BLDGS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 37: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/37.jpg)
Skylight Prescriptive Requirements
1. Maximum area (total plus west facing).
2. Maximum U-factor.
3. Maximum solar heat gain coefficient.
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
-2010 PSVARE STANDARD FOR ENERGY EFFICIENT BLDGS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 38: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/38.jpg)
Skylight Area - The
area limit for skylights
is 5% of the gross
exterior roof area. The
limit increases to 10%
for buildings with an
atrium over 55 ft high
Skylight SHGC -
Skylights are regulated
only for SHGC, not
RSHG, because
skylights cannot have
overhangs.
MINIMUM STANDARDS
-2010 PSVARE STANDARD FOR ENERGY EFFICIENT BLDGS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
-2010 PSVARE STANDARD FOR ENERGY EFFICIENT BLDGS
![Page 39: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/39.jpg)
Daylighting
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
MINIMUM STANDARDS
![Page 40: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/40.jpg)
Appropriately sized skylight systems when combined with daylighting controls can dramatically reduce the energy consumption of a building.
With too little skylight area, insufficient light is available
Too much skylight area, solar gains and heat losses through skylights negate the lighting savings with heating and cooling loads.
-CEC 2005 BUILDING ENERGY EFFICIENCY STANDARDS
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 41: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/41.jpg)
Daylighting
Source: BNIM Architects & Lake Flato Architects Walking the Walk – by Anna Hoenmans High Performing Buildings ASHRAE, 2008 A
rcht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
G
lass W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 42: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/42.jpg)
Infiltration and Air Leakage
Joints and Openings
All joints and other openings in the building envelope
that are potential sources of air leakage must be
caulked, gasketed, weather-stripped, or otherwise
sealed to limit air leakage into or out of the building.
-CEC 2005 BUILDING ENERGY EFFICIENCY STANDARDS
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 43: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/43.jpg)
Manufactured
Site-built
Field-fabricated
Doors and windows must be
tested and shown to have
infiltration rates not
exceeding the values shown
Values shown as per NFRC
-CEC 2005 BUILDING ENERGY EFFICIENCY STANDARDS
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 44: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/44.jpg)
MINIMUM STANDARDS
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 45: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/45.jpg)
Arc
ht E
C P
unsala
n –
Wate
r-T
ech P
hils
2012,
SM
X
Thermal Bridging
-THERMAL STUDY IN GLASS WINDOW ASSEMBLIES USING THERM 7
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 46: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/46.jpg)
OVERALL ENVELOPE
APPROACH & TDV
CALCULATION
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 47: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/47.jpg)
Overall Envelope Approach
The overall envelope approach treats envelope components as a system and offers the ability to make
simple trade-offs between envelope components.
Overall Envelope TDV Energy Approach.
The total TDV Energy of the overall envelope of the proposed building, TDVprop, shall be no greater than the total TDV Energy of the overall envelope of a standard building, TDVstd,
MINIMUM STANDARDS
-2010 PSVARE STANDARD FOR ENERGY EFFICIENT BLDGS
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 48: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/48.jpg)
Step 1 – Calculate Conduction
Heat Gain
OVERALL ENVELOPE APPROACH & TDV
CALCULATION
Step 2 – Calculate Radiation Heat Gain from
Opaque Surfaces
Step 3 – Calculate Heat Gain Thru
Fenestration & Skylights
Step 4 – Calculate the Total Heat Gain for
the Standard and Proposed Building
This is the sum of heat gains for each step
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 49: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/49.jpg)
COMPLIANT! MANDATORY
MEASURES
PRESCRIPTIVE
MEASURES
OVERALL ENVELOPE
APPROACH
Windows, Doors, Roof,
Insulation, Skylight are
labeled and certified
Windows, Doors, Roof,
Insulation, Skylight, Walls
and Floors have to follow
prescribed requirements
Standard OTDV and
Proposed OTDV are
calculated and compared…
StdOTDV > =PropOTDV
O.K.!
OVERALL
PERFORMANCE
APPROACH
Use ENERGY EFFICIENCY
SIMULATION Softwares
OVERALL ENVELOPE APPROACH & TDV
CALCULATION
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 50: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/50.jpg)
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Case Study 1
School Building in
Metro Manila
Thermal Comfort
Power Consumption
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 51: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/51.jpg)
Case Study 1
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 52: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/52.jpg)
Case Study 1
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 53: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/53.jpg)
Case Study 1
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 54: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/54.jpg)
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Case Study 2
Proposed Showroom and
Service Center in Rizal Province
New Construction aiming for GREEEN Yakal or Molave Certification
Option 1 – Baseline (BAU)
Option 2 – Compliant (meets PSVARE Std Reqts on Bldg Envelope
Option 3 – Owner Reqts (maintain Single Glaze Clear Showrm windows
Option 4 – Alternative Approach (maintain Single Glaze Showrm window
but increase insulation in other areas)
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 55: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/55.jpg)
Case Study 2
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 56: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/56.jpg)
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
Case Study 2
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 57: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/57.jpg)
Daylighting
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
STRATEGIES
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 58: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/58.jpg)
Daylighting
Arc
ht E
C P
unsala
n M
odule
5 G
reen B
uild
ing S
em
inar,
2012
STRATEGIES
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 59: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/59.jpg)
Daylighting
STRATEGIES
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 60: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/60.jpg)
Daylighting
STRATEGIES
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 61: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/61.jpg)
SUN’S PATH AT NORTH LATITUDE
Building Orientation
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 62: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/62.jpg)
HORIZONTAL SUNBREAKS
-PASSIVE COOLING TECHNOLOGY FOR BUILDINGS IN HOT-HUMID CLIMATES
Shading Devices
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 63: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/63.jpg)
VERTICAL SUNBREAKS
-PASSIVE COOLING TECHNOLOGY FOR BUILDINGS IN HOT-HUMID CLIMATES
Shading Devices
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 64: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/64.jpg)
Shading Devices
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 65: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/65.jpg)
Case Study 3
-SCREEN SHOT OF A DIALUX DAYLIGHTING SIMULATION OF A WAREHOUSE PROJ.
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
Daylighting Simulation for a Warehouse, South of Manila
![Page 66: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/66.jpg)
Case Study 3
Daylighting Simulation for a Warehouse, South of Manila
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 67: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/67.jpg)
4-STOREY OFFICE BLDG – LIBIS, QC
2012
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
Case Study 4
![Page 68: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/68.jpg)
68
• Building Features
Insulated Building Envelope
High-performance Glass Windows
Max. 40% Total Window-to-Wall ratio (WWR)
VRF & Chilled Water cooling system
Fresh Air supply, Sealed Building Envelope
T8, T5, CFL, LED, Electronic Ballasts
Min. Lighting Power Density
Sewage Treatment Plant and Re-use
of wastewater for flushing and irrigation
Re-use of existing materials
Data based from PGBI Energy Modeling Studies for a 4-storey Office Bldg.
42% Energy Saving
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
21% Building
Envelope Efficiency
Case Study 4
![Page 69: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/69.jpg)
CONCLUSION
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 70: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/70.jpg)
Reduced Energy Consumption & GHG emission
Building Envelope Standards & Best Practices
HVAC
Artificial Lighting
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 71: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/71.jpg)
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 72: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/72.jpg)
72
Green Buildings
Green Building
Code Standards
Business as Usual Lower end
Voluntary
Rating Systems LEED, BREEAM, BERDE, GREEEN
Num
ber
of
buildin
gs
Pro
filing E
xis
ting B
uildin
gs
for
Gre
en B
uildin
gs
in t
he P
Hilip
pin
es–
Em
elito
Punsa
lan,
ASH
RAE D
EC A
pr
25,
2014
Makati
Cit
y
![Page 73: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/73.jpg)
73
BENCHMARKING PSVARE STANDARD
ASHRAE 90.1
Baseline Study
Market Study
Sensitivity Analysis BAU
~25%
~50%
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 74: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/74.jpg)
Factors to consider in the design of energy-efficient building envelopes
1. Set objectives with Client
2. Best to have an Integrated Design Team
3. Design the most energy-efficient building envelope. This will realize first-cost savings and energy-efficiency in the long term
4. Think of synergies or strategies
5. Refer to Prescriptive Requirements of Standards
6. Energy Modelling is a very power tool.
7. Need for Glazing Testing, Certification & Labelling.
8. Windows are just one of the components in the building envelope that can help attain energy efficiency.
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
![Page 75: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/75.jpg)
Resiliency?
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
Back to Basics
![Page 76: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/76.jpg)
Resiliency?
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014
Back to Basics
END
![Page 77: Glass Windows In Building Envelope & Energy Efficiency 2 Emelito Punsalan... · Glass Windows In Building Envelope & Energy Efficiency ... Density Lighting Control ... New Construction](https://reader030.vdocuments.net/reader030/viewer/2022020204/5b0924df7f8b9a93738d6cb7/html5/thumbnails/77.jpg)
Emelito Punsalan, Uap, EnP, GREEEN ADP+AA
United Architects of the Philippines
UAP- Green Architecture Movement
Philippine Green Building Initiative
ASHRAE, Philippines Chapter
LR Punsalan & Associates
+63 920 9626445
Gla
ss W
indow
s in
Build
ing E
nvelo
pe a
nd E
nerg
y E
ffic
iency –
Ar
Em
elit
o C
Punsala
n,
PG
BI,
25 N
ov 2
014