The South American session of the international webinar series,"THE IMPLEMENTATION OF ENERGY EFFICIENT BUILDINGS POLICIES IN 5 CONTINENTS" was held on November 4, 2010, 10 pm - 12:30 pm, Brasilia time. The agenda for the free 2.5-hour webinar was: · 10:00 Introduction - Jean Carassus, TG 66 Coordinator · 10:10 "The Ordinance on Buildings Thermal Quality for the City of Maracaibo-Venezuela" - Nastia Almao, Emeritus Professor, University of Zulia · 10:30 "Energy efficiency in buildings in Colombia" - Carlos Valles, UPME (Energy Planing Unit), Ministry of Mines and Energy · 10:50 "Energy efficiency in buildings in Argentina" - Gautam Dutt · 11:10 "Barriers to Energy Efficiency in Buildings in Emerging Economies. Strategies to start actions: The case of Uruguay." - Alfonso Blanco, Mechanical and Industrial Engineer of UdelaR University · 11:30 "Chilean Building Thermal Performance regulations: what we´ve done and what we haven´t." - Waldo Bustamante, Professor at the School of Architecture. P. Catholic University of Chile (PUC) · 11:50 "The Brazilian Energy Efficiency Label for Buildings" - Roberto Lamberts, UFSC, Professor, Federal University of Santa Catarina, South Brazil · 12:10 Conclusions - Jean Carassus, TG 66 Coordinator

1. 03/11/2010
Chilean Building Thermal
Performance regulations:
what we´ve done and what we
haven´t
Waldo Bustamante G
School of Architecture
Catholic University of Chile
CIB TASK GROUP 66 WEB EVENT
"THE IMPLEMENTATION OF ENERGY EFFICIENT BUILDINGS
POLICIES IN SOUTH AMERICA"
NOVEMBER 4, 2010
Chile.
17 million people
7 million in Santiago
85% urban population
0,2 % of world CO2 emissions
170% of CO2 emissions increasing during last 25 years
Energy: Main responsible for CO2 emissions
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2. 03/11/2010
PRIMARY ENERGY
Firewood
14%
Hidro power
19%
Coal 10%
Petrolium 35%
Natural Gas
22%
Source: Ministry of Energy. Chile
BY SECTORS
20% FOR RESIDENTIAL SECTOR
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3. 03/11/2010
Residential buildings national survey
Stand by 3.5%
TV 4,2%
Lighting (5,4%)
Refrig 9,5%
Heating system
19,1% Hot Water COOKING
33.2% 13,4%
Source: Ministry of Energy of Chile. 2010
Climate: Jan
T°Max T°Mín Sol rad
24.9 17.7 7.2
July 18.0 13.1 3.6
To the
expected T°Max T°Mín Sol rad
variation from Jan 24.1 5.4 7.6
July 20.9 -0,9 4.1
north
to south, the
ocean, the Jan
T°Max T°Mín Sol rad
29.7 13.0 6.4
coastal range July 14.9 3.9 1.2
and the
Andes, along
T°Max T°Mín Sol rad
the country Jan 23.8 9.0 7.0
July 11.6 4.2 1.1
causes
pronounced
longitudinal
variations
T°Max T° Mín Sol rad
Jan 14.7 6.5 5.1
July 3.7 -1,1 0.6
Note: temperatures in °C and Solar radiation (mean value) in kWh /m2 day
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4. 03/11/2010
CHILEAN THERMAL REGULATION
FOR (NEW) HOUSING
1st STEP : 2000
Maximun U values for
Ceiling of new residential buildings
2nd STEP: 2007
Maximum U values for Walls
Floor (excepting floors over ground)
Máx area of windows according tu U value
THERMAL ZONES to ACCORDING HEATING DEGREE DAYS / BASE 15°C
1 500
2 > 500 - 750 5 > 1250 - 1500
3 >750 - 1000 6 >1500 - 2000
4 >1000 - 1250 7 > 2000
“Thermal Climatic Zones
Zones” according
to a non
Or mandatory
Chilean
Heating Standard
Degree
Day
Zones
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5. 03/11/2010
STANDARDS Max Area Windows
(Residential buildings)
Ceiling Walls Floor Single
Double Glazing
glazing
No standars for ventilation
No standards for avoiding
condensation
No standards for infiltration
No standards for cooling periods
No requirements for thermal bridges and “non
ventilated“ floors
Máx U Máx U Minimum
Thermal Wall Ceiling Heating Demand
City Zone W/m2 K W/m2 K kWh/m2 year
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6. 03/11/2010
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