


 
 Serbest Khalil Ismail 

Architecture Engineering department 

College of Engineering 

University of Duhok , Iraq 

Serbest.ismael@uod.ac 

                               Diler Haji Morad 
Architecture Engineering department 

College of Engineering 

University of Duhok , Iraq 

Diler.morad@uod.ac 

Kurdistan Journal of Applied Research (KJAR) | Print-ISSN: 2411-7684 – Electronic-ISSN: 2411-7706 |  kjar.spu.edu.iq 

Volume 2 | Issue 3 | August 2017  | DOI: 10.24017/science.2017.3.11 

 

A Comparative Study Between the Climate Response 

Strategies and Thermal Comfort of a Traditional and 

Contemporary Houses in KRG: Erbil 
 
  

 

 

   Abstract: The hot and dry climate conditions in Erbil 

city has a main effect on the energy consumption and 

thermal performance of the house. In the last decade, 

residential sector in Kurdistan region government has 

consumed about 50% of total energy consumption. The 

contemporary dwelling did not consider climate 

consideration therefore; there was difficulty in 

achieving or obtaining thermal comfort conditions, 

without using electrical or mechanical devices like air- 

conditioning. In contrast, traditional houses carefully 

and effectively designed with climate conditions. In the 

present study, in order to determine suitable 

architectural strategy that may be benefit in future 

housing designs, the climate response strategies and 

thermal comfort examined in both traditional and 

contemporary houses in Erbil city and evaluated in 

terms of building form, orientation, occupancy 

migration, plan arrangement, window, ventilation, 

shading, Vegetation, water bodies building materials 

and Urban Fabric. At the end of this study, a simplified 

evaluation and comparison between contemporary and 

traditional house are given. 

Keywords: Climate condition, Thermal comfort, 

evaluation, comparison, Traditional and 

Contemporary houses  

1. INTRODUCTION 

      Climate has a main impact on the thermal 

performance and energy consumption of houses 

especially in countries with hot and dry climates such as 

Kurdistan region government, where people facing 

different problems, which related to climate especially in 

contemporary housing. In the last decade, residential 

sector in Kurdistan region government have consumed 

about 50% of total energy consumption (fig.1) [1] . Erbil 

city offers a good case of a contrast between 

contemporary and traditional houses. Although Erbil is 

one of the oldest cities in Kurdistan region, there houses 

remain and still occupied by citizens. This offers an 

opportunity to compare the traditional city with that 

contemporary city in the performance of architecture in 

order to achieve the best techniques and methods to 

maintain thermal comfort in hot and dry climates. 

Therefore, for an understanding of the thermal 

performance of both contemporary and traditional 

houses, various aspects are necessary such as 

architectural design, occupancy patterns, planning and 

constructional methods and materials. The present study 

aimed at finding the main climate response strategies to 

achieve thermal comfort for future houses.  

Figure 1 Electricity 

demand by Sector [1] 

2. LITERATURE REVIEW 

According to Hasan Fathy the traditional building is 

related to the majority cultures of the society, and work 

as symbols of identity as well as reflect the 

environmental specification of that region [2]. 

In the 18th century, research about traditional 

architectures had started, the studies in that time had 

different feature some considered it as national 

architecture element. In the 20th century, architects 

began to bring traditional buildings to the field and 

theory of architecture [2].  

The village of new Gournah, designed by Hasan Fathy 

in 1946, is the first project attempt to implement 

traditional architecture in to architectural field. He uses 

traditional Egyptian design strategy such as mud bricks 

in its construction, available materials in the region and 

traditional Nubian techniques in the houses [2]. 

In 2005, Nazife Ozay published article about the 

comparative study between tradition and contemporary 

houses in Northern Cyprus regarding of climatically 

responsive in term of the form, materials, windows and 

orientation of the building, and she conclude that the 

tradition climate strategy response has been ignored in 

the new building [3].  

Another important research published by Boqvist et al 

in 2012, about the comparison between passive house 

construction and traditional building construction in 

Sweden in term of construction thermal performance, 

climatic response and building efficiency [4]. 

Furthermore, there are many studies have been done in 

many countries about these issues.  

Until now there is no studies and measurement data 

54 

13 

12 

12 

9 

Domestic

Agriculture

Government

Commercial

Industrial

0 10 20 30 40 50 60

percentage % 

mailto:Serbest.ismael@uod.ac
mailto:Diler.morad@uod.ac


 

 

about the comparison between traditional and 

contemporary houses in Kurdistan region. But there are 

many study about traditional building in Kurdistan 

region. Therefore, this paper will be the basic for 

development of studies about this subject. 

3. ERBIL CLIMATE 

   Erbil city is located to the north of Iraq at Kurdistan 

government region between (36.19) Latitude and 

(44.009) Longitude. The Erbil’s climate is classified as 

semi-arid continental and is characterized by large 

differences in temperature between summer and winter 

and between day and night with extreme conditions. 

Summer season (Jun, July, August and September) is 

very hot and dry and the hottest average temperature is 

about 43C and in the hottest day the temperature rises 

above 48C. While the winter season (November, 

December, January and February) is cold and wet, the 

lowest average temperature about 2 C and in the lowest 

day the temperature declines below -5Cm, with the total 

average rainfall about 300-400 millimeters annually [5]. 

The humidity is high in winter by average 80%   and low 

in summer by average 20%. The annual wide speed 

relatively slow about 3-5 (fig.2) [6].   

 

Figure 2 Erbil monthly average temperature and 

precipitation (www.accuweather.com) 

4. MACRO & MICRO CLIMATE RESPONSIVE 

DESIGN STRATEGIES IN TRADITIONAL 

BUILDINGS. 

     Traditional buildings in Erbil were designed to 

withstand the sever climate conditions that surrounding 

them. The outcome was successful dwelling that stood 

the test of time for thousands of years to prove that 

responsive design strategies are effective for the 

buildings to combat and successfully respond to the 

environment condition surrounding it. The following are 

the main design strategies that have been used in 

traditional buildings [7]: 

4.1 Urban Fabric 

   Erbil Traditional buildings got evolved within 7000 

years ago. The Erbil Citadel has been influenced more 

with northern side of the neighboring cities in Turkey 

and Iran, on contrast to the form, where the design finds 

to be similar to the buildings in Baghdad. This is mainly 

because they were under the same climate and culture 

influence [8]. 

     The Citadel is mainly occupied by traditional 

courtyard-houses reached through a maze of narrow 

alleyways. The pedestrian alleyways, which ranged in 

width from one to two and half-meters, entered 

throughout the Citadel in tree like pattern are a logical-

functional solution to the circulation. While all-

alleyways began naturally from the main-gate and spread 

in all directions. The gate allows only entry and exit for 

all residents of the city (fig.3A). They are narrow and 

deep (i.e. alleyways) to provide shading over the street 

and neighboring buildings that reduces the air 

temperature as well as it provides protection in the 

neighborhood from sand storms, as the high density of 

buildings will reduce the wind arrays [9]. 

       Building in Citadel were grouped close together to 

shade each other from the sun of midday. The ratio 

between street width and building height created a 

protected area from the sun of hot summer months, and 

this making walking comfortable and allowing the 

populations to sit in the street (fig.3B) [10]. 

      Ecological site planning allows suitable levels of 

solar radiation and natural day-light in to each residence 

unit. Each housing unit will need a relatively unhindered 

southern exposure during the winter season, and the 

design of house itself will require to ensure that sun can 

enter into the inside of the house While the highest angle 

of summer-sun is excluded to keep the house unit cool 

[9]. 

 

A- Site plan showing roads 

 

B-Aerial picture of residential building 

Figure 2 Erbil Citadel A- Site plan showing roads 

B-Aerial picture of residential building 

(http://www.erbilcitadel.org) 

http://www.erbilcitadel.org/


 

 

4.2 Form and Orientation 

    External envelop of the building is the most important 

layer that affects and controls the desirable wind exposer 

and solar access to moderate the heat loss and heat gain 

through the building. 

     Typical houses design in Erbil are constructed with 

the courtyards that are the center of the plans with 

restrictions given by the form of the land-parcel. Usually 

the courtyards were planned to be geometric in form 

either rectangle or square with its long axis or 

perpendicular to the solar orientation. All the windows 

of the rooms in both stories are oriented towards the 

courtyard to allow for natural ventilation and breathing 

of the building (fig.4 A-B) [11]. Most houses are 

designed as two floors; the lower floor usually at one to 

one and half-meters under courtyard level.  This floor is 

also accessed directly from the courtyard by relatively 

four or five steps. Semi-basements always have vaulted-

roofs resting on thick-brick piers. Usually ceilings are 

build up with two and half to three meters high with 

several windows facing the courtyard(fig.4D). The 

second level or the upper floor has a high ceiling, and 

lower windows to allow for cross-ventilation and let 

more day light into the space [12].  

 

     These forms of the houses are known as introvert 

enclosure, shut-off from its surrounding by solid and 

high walls to provide its occupants with privacy and 

block street noise. Hence, these spaces and rooms look 

indoors onto a secluded and private open space, the 

courtyard. Through which they receive daylight,  natural 

ventilation, sunlight and have visual and physical 

communication from inside to outside(fig.4C) [13]. 

While Orientation is the logical response for climate, 

especially the orientation toward the south facing since it 

is the main source solar exposure and perhaps source for 

comfort or discomfort during respective season. Since 

Iraq is located in the northern hemisphere, The 

arrangement of space in the building is designed 

according to the sun path arches all over the south. 

Consequently, in indigenous houses, all the summer 

spaces are located in the southern part of the courtyard 

as well as all the openings of this part face north. In 

contrast, rooms used in the winter generally exist on the 

north-side [7].  

 

 
A- Ground Floor Plan 

 

 

 
B-First Floor Plan 

 

 
C- Elevation Plan 

 

 

D- Section Plan 

Figure 4 Erbil Citadel typical houses A- Ground Floor 

Plan B-First Floor Plan C- Elevation Plan D- Section 

Plan (http://www.erbilcitadel.org) 

4.3 Occupancy Migration- Plan Arrangement 

      According to Warren and Al-Azzawi the rooms are 

used according to the time of the day or season, from the 

cellar to attic. The behavior patterns changed, in summer 

two periods of sleep were the rule; in the cellar during 

the afternoon and on the roof in the cool of the early 

hours. At other times of the year the day was un-broken 

and the night was spent in a first floor room.” Therefore, 

the colonnaded house are places of complex 

microclimates where each area is used to its best 

advantage and where the courtyard itself is a giant room, 

or acting as the hub of life in the building [14] [15]. 

     Horizontal migration inside the houses of Erbil is a 

seasonal move between the rooms according to their 

orientations. In other words, in the wintertime, sun-shine 



 

 

is desirable and occupants prefer to have the rooms with 

large windows that are south facing with low ceilings 

high to gain sun heat. In contrast, summer season it is 

desirable to have the rooms north facing north, usually 

are open with high ceilings to allow for cross ventilation 

will serve the best in Erbil [16].  

    The vertical migration is the greatest effective 

response to temperature-change. Since the climate is at 

its peak, meaning the morning time is spent in the 

ground floor; the semi-basement is used for the 

afternoon-time when the heat is excessive. While at 

night, roof space is used for sleeping. This approach is 

based on cool sky-radiation at night according to the fact 

that warm-air rises whereas cool air is collected in low 

space [17]. 

4.4 Windows, Ventilation and Shading. 

    Ventilation is an essential factor of modifying the hot 

and dry climate. The courtyard response for the climate 

is highly effective, where the courtyard is collecting cool 

and dense air at night, and provides the surrounding 

rooms with cool air till well into the day. When the sun 

reaches the courtyard, the air is heated and convection 

currents rise and cross ventilation occurs, especially 

when the surrounding spaces have secondary ventilation 

sources from cool alleys and adjacent narrow [18]. In 

addition, the “Bad-Geer” or wind towers is a remarkable 

ventilation device. It is tall narrow intakes open to the 

roof terrace; capturing the prevailing wind from North-

West in Kurdistan to catch clear and cool air to the 

below rooms. Through these rooms, the air-passes in to 

the courtyard, feeding the convection cycle. Different 

levels receive independent wind scopes [19].  

     The difference of sun-angles between summer and 

winter solstice gets higher the further south or north 

from the equator. Hence, November until March months, 

sun infiltrate deeper to ward south oriented rooms when 

warm is preferred, while from April until October 

months, shading devices are useful against direct sun. 

The outside shading elements on the facades has a minor 

role in the Erbil dwelling, While the houses are adjacent 

and introvert from three sides. However, the shadings 

are placed interior the house around the courtyard. The 

arcade and colonnade around the courtyard provides 

shading for the room around the court [20]. 

4.5 Water Body and Vegetation. 

     Water has a moderating effect on the air temperature 

of the micro-climate through Moisture Thermal Transfer  

relative to cooling a space, as dry, warm air passes past 

small droplets of water, the heat from the air transfers in 

to the water, making the air cooler. This facilitates 

evaporation of the water, which causes the water further 

cool. Water possesses very high thermal storage 

capacity; therefore, majority Erbil traditional building 

have fountains [21]. The design behind the idea is that 

water has the capability to moderate the air-temperature 

in the surroundings and takes-up heat from air through 

evaporation and causes significant drop of temperature 

[22].  

   Vegetation is an effective way of changing the 

temperature for better conditions by Evapotranspiration. 

Transpiration is a cluster of plants that creates the 

cooling effect of evaporation as air moves through or 

across then plants. The air is cooled as the plants remove 

heat to affect the evaporation state change. Furthermore, 

it provides shade to the house to decrease the intense 

solar exposure. Erbil traditional building used to have 

trees in the courtyard since all the windows are opened 

toward the courtyard [23].    

4.6 Building (construction) Materials. 

     Building materials and construction techniques were 

developed, and adopted to protect the occupant from 

climatic factors and temperature range. The structure is 

baring wall system, the roof is constructed by wooden 

timber beam material with thickness about 20-25 cm and 

covered by mat with clay without finishing. the external 

and interior walls are built from mud and stone with 

thickness about 50-75cm. windows and doors made from 

wood and steel, Mass construction of traditional houses 

in Erbil use certain exterior materials whether it made of 

mud or stone that are well insulated to prolong and 

protect the house against the heat in the day-time and 

delay the heat transmission to its thermal-mass 

characteristic. Sometimes even storing the heat to protect 

itself for the chilly mornings [24] [25]. 

5. MACRO & MICRO CLIMATE RESPONSIVE 

DESIGN STRATEGIES IN CONTEMPORARY 

BUILDINGS 

      Contemporary house (modern house concept) in 

Erbil city is characterized and influenced by many 

different architectural styles and design like Western 

architecture that are unfamiliar to the area, without 

considering social life, the distinctive climatic conditions 

and the advantages of traditional architecture. This is 

mainly because of shortage of building regulations and 

economic aspect as well as lack of knowledge about the 

thermal-performance of modern materials and 

constructional methods [26]. Contemporary house has 

grown quickly because it is meet social and individual 

need for a social success symbol and traditional house is 

perceived to be undesirable and old. 

5.1 Urban Fabric  

    New urban expansions and building were designed in 

the Erbil and applied without respect for characteristics 

of city, because urban planning codes adapted from Iraqi 

and foreign countries that are unrelated to the social life 

and cultural of the region. Therefore, the existent house 

did not have formal codes that led to the great diversity. 

Mainly, the urban planning of neighborhood 

characterized by main streets that have a rectilinear grid 

layout system as well as Secondary Street, and the 

blocks of housing plots area are surround by streets 

which are generally organized back-to-back(fig.5A). The 

roads are used to provide passage for cars, so they are 

wide with large open spaces with less shade the building 

and passengers(fig.5B) [26]. The layout does not look 



 

 

have architectural concept of three-dimensional and does 

not appear to carry any consideration of social customs, 

climatic conditions, orientation, economics, urban design 

and planning [27]. However, some areas have a higher 

status than others that are located to the corners of 

blocks or the house nearer to the main road. 

 

 
A- Site plan showing grid roads 

 

 
B-Aerial picture of residential building  

 

Figure 5  Erbil city typical houses, Ganjan city Iraq, 

Erbil A- Site plan showing grid roads B-Aerial picture of 

residential building (www.Ganjancity.com) 

5.2 Form and Orientation 

     Increasing of population and urban planning 

restrictions effected on Building form and the plot area 

of residential buildings, which were classified into 

variable size, small between 10m*15or20m (150-200 

m²) which is widely used and built as terrace houses, 

medium 15m*20or25m (300-400 m²) built as semi-

detached houses, large 20m*30or40m (600-800 m²) are 

built as detached or semi-detached houses. The above-

mentioned factors made different plan form with a 

garden in the front, one and two stories or Multi-story 

(fig.6 A-B-D) [26]. The compactness of house 

apartment, terraced, semidetached, the houses do not 

protect and shade each other from rain in winter and sun 

radiation in summer (fig.6C), while the house orientation 

directed according to the distribution of urban planning 

without any attention to environmental consideration 

like wind exposer, solar access and heat loss and gain 

through the external envelop [28]. The house size in 

terms of the built area size, floor number and room 

number on each floor, which is related to the family and 

building plot size in addition to social and economic 

situation in the society [29]. 

 

 A- Ground Floor Plan          B-First Floor Plan                                    

 

C- Elevation Plan 

 

D- Section Plan (amperes) 

Figure 6 Ganjan city typical houses A- Ground Floor 

Plan B-First Floor Plan C- Elevation Plan D- Section 

Plan (www.Ganjancity.com) 

5.3 Occupancy Migration- Plan Arrangement 

      As many contemporary houses are comprised of 

apartments, terraced and semidetached (three sides) 

house generally designed free plan with a specific 

function for each zone or space, the occupants were 

forced to carry out their actions in specific areas, 

irrespective of the seasonal and daily changes in climate 

conditions. Those make the zone thermally 

uncomfortable by overheating in summer and cooling in 

winter, generally, the rooms look out-wards toward the 

garden or the street (the passage wayside) [30]. The plan 

arrangement has different types but generally ground 

floor include reception living room (Hall), kitchen room 

in the front house near to entrance and one or two 

http://www.ganjancity.com/


 

 

bedrooms’ in the behand while first floor include the rest 

of the bedrooms, these spaces are used throughout the 

year.        

5.4 Windows, Ventilation and Shading 

    The external windows which oriented toward the 

street and front garden of ground floor (living, kitchen 

and reception) are large and first floor (bedrooms) are 

medium to large according to window to wall ratio, 

while the inside windows oriented to the shaft for 

lighting “minwar”. This has no relationship with the 

seasonal specialization and environmental or 

geographical orientation. Therefore, the house cannot get 

advantage from such windows to encourage desirable 

heat gain in winter and avoid undesirable heat gain in 

summer. It is hard to decide the size of window for the 

room used during all seasons. the large windows in hot 

and dry reign cause overheating in summer and may by 

cooling in the winter by heat loss, therefor to achieve 

thermal comfort need device (air-condition) [31].    

     The external windows partially shaded by projecting 

small or large balconies “Tarma” of the first floor or by 

continuous horizontal straight overhangs, but these 

shading devices are there for rain protection and 

decorative purpose, without any relation to the 

orientation and sun angles in winter and summer. Most 

contemporary house have sufficient lighting due to the 

large windows while the ventilation is not functioned 

well because it not oriented to the correct wind breeze 

for the reasons previously mentioned and building 

Outward-looking [32].  

5.5 Water Body and Vegetation 

    In fact, the garden in contemporary house is formed 

due to urban planning regulation, which forced the house 

to get away from the street 4 meters and have no 

relationship with climatic consideration. The garden 

located in the front of house include many kind of 

Vegetation, this cannot be cooling the inside temperature 

like courtyard because of its location and purpose which 

used the plants for decoration with neglecting the solar 

accesses and wind exposer. In the recent year, many 

houses removed his garden because they thought it 

useless [33].  

   Water bodies are not used in contemporary house 

because there is not enough space in the garden, and if it 

exists, it is used only for aesthetic purposes. For this 

reason, the use of vegetation and water are ineffective to 

reducing temperature inside the house [33].  

5.6 Building (construction) Materials 

      Contemporary house in Erbil used for the 

construction reinforced concrete, and concrete block for 

structure (baring wall system), the roof is constructed by 

reinforced concrete material with thickness about 15 cm, 

sometime covered by Terrazzo and porcelain tile, mostly 

without finishing. The external and interior walls are 

built from  

concrete block with thickness about 20cm generally 

finished with cement plaster, paints and Marble [34]. 

Windows and doors made from aluminum, plastic, 

wood, glass and steel, while ceramic and porcelain tile 

for floor finishes. Material previously mentioned 

incorporated in heavy weight constructions. Generally, 

both exterior walls and roof does not have thermal 

insulation, and is not thick enough to provide in 

sufficient U-value (against heat loss) and time lag 

(against heat gain) to achieve thermal comfort in winter 

and summer [35]. 

6- ANALYSIS ANA EVALUATION 

This section will be evaluating and analysis both 

traditional and contemporary houses in Erbil city, in 

term of climate response strategies aspect and thermal 

comfort table 1. This comparison and evaluation can 

covered majority of houses in the city not all due to the 

different building size, form and materials …etc.  

 

Table 1 Evolution and Comparison  between Traditional and Contemporary houses 

  Traditional houses Contemporary houses 

U
rb

a
n

 f
a
b
ri

c
 

U
rb

a
n

 l
a
y

 o
u

t 

-Houses in towns were 

grouped close together to 

shade each other 

-Houses oriented 

according to sun access 

and prevailing wind [9] 

 

 

 

 

 

-Houses in towns have 

large open spaces with 

less shade building each 

other and passengers. 

-Houses oriented 

randomly according to 

urban planning code 

(regulation) [26]  



 

 

S
tr

e
e
t 

n
e
tw

o
rk

 

-Narrow and irregular 

streets [9] 

 

 

 

 

-Wide and regular 

network streets [27] 

 

 
 

A
rc

h
it

e
c
tu

ra
l 

d
e
si

g
n

 s
tr

a
te

g
ie

s 

F
o

rm
 a

n
d

 O
ri

e
n

ta
ti

o
n

 

C
o

m
p

a
ri

so
n

 

-Inward looking with 

courtyard 

-Simple plan form square 

and rectangular with cubic 

courtyard, ground and 1st 

floor equal. [12] 

- Having one external 

elevation and three other 

sides surrounded by 

neighborhood houses [11] 

 

-Out ward looking to garden 

or street 

- Different plan form, 

ground and 1st floor not 

equal. [29] 

- Most houses have two 

elevations or more [28] 

   

 

E
v

a
lu

a
ti

o
n
 Both courtyard and simple of plan form achieved 

thermal comfort through cooling the spaces in day 

and night time by minimizing the surface that 

exposure to the sun and climate factor in summer. 

(Authors) 

Garden cannot by alternative solution of courtyard 

for achieving thermal comfort for spaces, while the 

plan form and two elevations or more led the large 

area of surface that exposure to the sun and climate 

factors. (Authors) 

O
c
c
u

p
a
n

c
y

 m
ig

ra
ti

o
n

, 
P

la
n

 a
rr

a
n

g
e
m

e
n

t 

C
o

m
p

a
ri

so
n
 

-One or two floors 

with small basement. 

-plot area according to 

family size and 

economic states [17] 

-Changed in 

residential buildings. 

[14] 

-Compact planning 

with 

courtyard 

-Floors height change  

 

 

- One or two floors or 

Multi-story blocks 

-plot area classified 

according to urban 

planning regulation (no 

consideration for family 

size and economic). [30] 

-Unchanged in 

residential buildings  

-Incompact planning. No 

courtyard . [30] 

-Floors height is the 

same 

 

 

E
v

a
lu

a
ti

o
n

 -Using ground floor in summer day and 1
st
 floor in 

night and winter to achieve thermal comfort as well 

as benefit for small basement in the hot day in 

summer. (Authors) 

 

-There is zone problem because of restrictions of 

modern houses therefore to achieve thermal 

comfort need electric devises such as (Air condition 

unit). 

- Lost in spaces. (Authors) 

 



 

 

W
in

d
o

w
s,

 V
e
n

ti
la

ti
o

n
 a

n
d

 S
h

a
d

in
g
 

C
o

m
p

a
ri

so
n
 

-Clerestory windows 

 -Covered terraces 

-Lighting and natural 

ventilation by courtyard. 

- External windows are 

small while interior 

windows are large with 

small window on the up. 

Windows oriented to the 

courtyard according to the 

climate response [18].  

- Wall shaded by attaching 

with surrounding houses 

 

 

 

 

 

 

-Vast glazed windows 

- Not standard balconies or 

no balconies 

-Natural ventilation and 

lighting by external and 

interior windows 

 -External and interior 

windows are large.  

- Windows oriented to the 

garden, street or back side. 

[31] 

 

E
v

a
lu

a
ti

o
n
 

 

- Covered terraces and windows designed to provide 

suitable shading in summer. 

- The interior windows oriented in the 1st floor to the 

south and ground floor to the north and west, to 

provide suitable sun radiation and shading in winter 

and summer. [18] 

- The External windows small windows in the 

outside give a privacy. (Authors) 

 

- Balcony and windows not designed to  provide 

suitable shading in summer. 

-The large windows size and orientation cause loos 

of energy and uncomfortable because of 

overheating and under heating in summer and 

winter as well as loss of privacy. On the other hand 

it is suitable for natural lighting and ventilation. 

(Authors) 

 

 

W
a
te

r 
b

o
d

y
 a

n
d

 V
e
g

e
ta

ti
o

n
 

C
o

m
p

a
ri

so
n

 

-A body of water and 

vegetation in the 

courtyard. [21] 

 

 

-Garage and garden in the 

front of house or back side. 

[33]  

 

 

E
v

a
l

u
a
ti

o

n
 

-Providing thermal comfort by cooling spaces. 

(Authors) 

 

-For aesthetic purposes.(Authors) 

B
u

il
d
in

g
 m

a
te

ri
a
ls

 

C
o

m
p

a
ri

so
n
 

-Local-materials 

(wood, mud and stone) 

found on the site of the 

houses or brought 

from a nearby area. 

[24] 

-Load-bearing walls 

- Wall thick 50-80 cm.  

 

 

 

  

-Materials are mostly 

imported or locally made 

with poor qualities 

(concrete block and 

reinforced concrete) 

- Poor or No insulation 

-Load-bearing walls and 

Frame structures. [35] 

- Wall thick 24 cm 
 

E
v

a
lu

a
ti

o
n
 -Thick wall made of mud bricks achieve thermal 

comfort, its work as thermal insulation in the day 

time and stored heat at night. [24] 

 

 

-Poor quality and insulation cause loos of energy 

and uncomfortable by lost of heating and cooling in 

summer and winter. (Authors) 

 

T
h
e
rm

a
l 

p
e
rf

o
rm

a
n

c
e
 

-Satisfactory during both 

winter and summer and 

at all times. (Authors) 

 

-Unsatisfactory during 

the times of overheating 

and under heating. 

(Authors) 

 

7. CONCLUSION 

     According to the above evaluation, it can be 

understood that the houses with courtyard (traditional 

house) are the best solution for climate condition of Erbil 

city due to the successful responds to the hot and dry 

climate.  Today, it can probably be observed any 

consistency in the climate design approach in Erbil city. 

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The micro- climatic factors such as sun access or 

orientation are ignored. The direction of wind breeze in 

many cases have not been taken in to consideration in 

building design, material selection and site planning, as 

well as the economic state (land prices, using chip 

marital) and increase population in the main towns this 

leading residential sector to be far away from the both 

urban and architectural quality. Thermal comfort and 

climatic design have been ignored by engineer and 

designers that cause utilizing of mechanical devise such 

as (Air-Condition unit) to control the thermal comfort in 

the house, that main massive wastage of money and 

energy resources.  

Based on the above evaluation, May be the available 

climate design considerations can be addressed: 

- Design of Landscape. Specially, to providing 

shade and cooling for spaces during the hot-

summer times by the trees and Vegetation. 

- Designing of semi-open and open spaces for 

example courtyards, balconies, terraces and 

verandas. 

- Block concrete should be replaced by local 

material like stone, brick and preferred used 

new material and system  

- prevailing wind direction and sun access or 
orientation should by Highly respected 

- Utilizing suitable building element and shading 
device that provide climate solutions for 

instance sun devices, blinds and overhangs. 

PVS shutters 
- with louvers are appropriate and available for 

Erbil climate. 

- Using suitable thick of thermal insulating of 

walls and roof with suitable high of ceilings. 

Utilizing light color to reflect the heat (sun radiation) 

such as white with pure form.  

 

 

 

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