A Study of Prefabricated Greenhouses on Rooftops for...

A Study of Prefabricated Greenhouses on Rooftops for

Neighborhood Regeneration

Haeyeon Yoo1

1School of Architecture, Soongsil University

369 sangdo-ro, Seoul, 156-743, Republic of Korea

Corresponding Author : [email protected]

Abstract. By utilizing the unused rooftop spaces of multi-family houses, the

economic burden of residents in terms of purchasing land decreased, and alt-

hough on a small scale, a method of generating profits together with neighbors

is examined. Using rooftops of the “Haengchon Lots”, which is the revitaliza-

tion center of Haengchon-dong, a business trial and research were officially

launched. Unlike vinyl greenhouses on ground level, a prefabricated greenhouse

on rooftops was designed. The expansion models must be lightened and minia-

turized. The installation conditions of different rooftops and the convenience of

installation, the safety of the structure and economic costs etc. were taken into

consideration.

Keywords: Prefabricated Housing, Prefabricated Greenhouses on Rooftops,

Urban Regeneration Neighborhood Regeneration, Off-site Element

1 Introduction

Recent interest in urban revitalization has increased, and due to the recent revision of

related laws this research has the objective of providing a realistic alternative for the

revitalization of the city. Therefore, by utilizing the unused rooftop spaces of multi-

family and multi-household complexes, the economic burden of residents in terms of

purchasing land can be decreased, and although on a small scale, a method of

generating shared profits with neighbors is examined.

Fig. 1. Situation of the Roof tops and Urban farming (Source : Report from UIA Architects,

2015)

Advanced Science and Technology Letters Vol.122 (IRTT 2016), pp.15-21

http://dx.doi.org/10.14257/astl.2016.122.03

ISSN: 2287-1233 ASTL Copyright © 2016 SERSC

2 The Prefabricated Greenhouse Test-bed

With the support of the NRF, starting in February of 2015 a review of specific target

locations was conducted. Later, with the support of the Department of the Housing

Environment Improvement of Urban Regeneration Headquarters, Seoul Metropolitan

Government in May of 2015 and by selecting rooftops in the “Haengchon Lots”,

which is the revitalization center of Haengchon-dong, the business trial and research

were officially launched.

Fig. 2. Opening Ceremony of the “Haengchon Community Space (Haengchon Lots)”in Haeng-

chon-dong (Source: Photograph by the author, 2015)

Later under the lead of the “research team”, which established and managed theories,

and the “UIA architectural design office”, which managed the project design and

execution plan, the project was conducted together with domestic professional

partners such as “Shin-sung Construction”, which was responsible for the modular

frame and framework; “Dong-yang Structural Systems”, which was responsible for

inspecting the structure; “HC Bellows”, which was responsible for applying the

bellows that took the shading into consideration; “ECA&C”, which was responsible

for the construction; “Kerb”, which was responsible for the brand and packing design;

“PMA urban research center”, which was responsible for matters related to the master

plan including methods of managing the indoor spaces etc.; and “Eloquence”, which

was responsible for photography and documenting progress. Continued support was

received from the City of Seoul Living Standard Improvement Department, the

Execution Team of Castle Town, the Urban Farming Team of the Jongno-gu Office,

the resident center of Gyonam-dong and the Executive Committee of Castle Town etc.

at the civic and organizational levels.

Advanced Science and Technology Letters Vol.122 (IRTT 2016)

16 Copyright © 2016 SERSC

Fig. 3. Experts consultation on the Haengchon Lots (Source: Photograph by the author, De-

cember 2015)

Fig. 4. The Prefabricated Greenhouse on the #1 Anchor Facility (Haengchon Lot) (Source: UIA

Architects, Nov. 2015)

3 The Prefabricated Greenhouse Program

To reuse neglected rooftops to revitalize residential spaces, a rooftop greenhouse was

planned as the “internal program (utilization proposal).”

By raising seedlings at the #1 anchor facility (Haengchon Lot) of the Castle Town

Haengchon-dong in Seoul and distributing these seedlings to residents, and connecting

this with the “Urban Revitalization University (the education program for residents)”

program currently underway, practical programs to facilitate “Urban farming” are

planned.

The program provides an education space for urban farmers, which they can freely

use during winter (December to February), while in the summer this space is used as a

practice ground for raising seedlings to be distributed to residents. Moreover, other


Copyright © 2016 SERSC 17

internal management programs that take into consideration methods of connecting the

utility of this facility with other facilities are under discussion.

Fig. 5. Urban Revitalization University (the education program for residents) (Source: photo-

graph by the author, November 2015)

4 Consideration

Unlike vinyl greenhouses at ground level, because this project is installed on rooftops,

it must take into consideration the design of the entire city. Also, because the

characteristics of each region must also be considered, a white base color was chosen

for the bellows.

Fig. 6. Bellows and window system (Source: UIA Architects, October 2015)

After installing the bellows, a method of diversifying the colors of the LED lights was

selected. To reduce energy consumption, solar warm air circulators are planned to be

installed.



Fig. 7. Modular greenhouse for prefabricated frame and solar warm air circulator (Source: UIA

Architects, November 2015)

It was extremely important to reduce the weight of the greenhouse for the sake of

structural safety, and because the project is located in a dense residential area, it was

necessary to take into consideration methods to shorten the duration of construction.

Also because the multi-family and multi-household houses faced each other with a 3–4

m road in-between, and because there was a high density of three- to four-storey

buildings, complaints associated with the noise, vibration and dust etc. due to

construction had to be taken into consideration.



Fig. 8. Design meeting for the prefabricated greenhouse at Haenchon-Dong (Source: Photo-

graph by the author, December 2015)

6 Conclusion

Previously, prefabricated greenhouses had to be constructed using hybrid construction

methods and could only be built as extensions in accordance with the law. However,

for the sake of the expansion of this project, it must be possible to build greenhouses

as temporary constructions instead of extensions by revising rooftop construction

regulations, and development of the greenhouses must be continued to make packing

easier.

Unlike the test bed installed in the anchor facility, the expansion models must be

lightened and miniaturized. Continuous research and development that takes into

consideration the installation conditions of different rooftops, convenience of

installation, safety of the structure and related economic costs etc. will result in

dissemination of this project.

Fig. 9. First frame mockup of a prefabricated greenhouse at SG Singsung R&D Center in

Chungju, South Korea (Source: Photograph by the author, 14 December 2015 / 05 January

2016)



Acknowledgments. I would like to express gratitude to the administrators of the

Department of the Housing Environment Improvement of Urban Regeneration

Headquarters, Seoul Metropolitan Government and the various design and

construction experts. (Project No. 201512351261). This research was supported by

the Basic Science Research Program through the National Research Foundation of

Korea (NRF-2015R1A1A3A04001377).

References

1. SH corporation, “New changes in urban housing through the modular construction”,

Sungjin, Seoul. (2015)

2. Yoo H.Y.: New trends in prefabricated housing, (2015), Asia Life Science,

Supplement.12, Philippines, pp559-570. (2015).

3. Freisinger, U. B.: Specht, K., Sawicka, M., Busse, M., Siebert, R., Werner, A., Thomaier,

S., Henckel, D., Galda, A., Dierich, A., Wurbs, S., Grosse-Heitmeyer, J., Schön, S., Walk,

H.: There‘s something growing on the roof. Rooftop greenhouses. Idea, Planning. (2015).

4. Implementation. Leibniz Centre for Agricultural Landscape Research (ZALF),

Müncheberg

5. Department for Urban and Regional Planning, Technische Universität Berlin (ISR)



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