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Agricultural Greenhouses: Methodology and Construction

11.02.2014
Regis Eder Neu

Construction manual for building Agricultural Greenhouses

Stage 1 – Selecting the site, determining foundations’ width and length, and demarcating and leveling the area
Stage 2 – Measuring and excavating the column pits in the foundation trench
Stage 3 – Beginning the construction of the greenhouse base
Stage 4 – Preparing the PVC columns and arches
Stage 5 – Placing in position the 4-inch PVC columns
Stage 6 – Filling the 4-inch PVC pipes (columns) and the 2-inch PVC arches
Stage 7 – Drilling holes in the 4-inch PVC columns
Stage 8 – Building the greenhouse wooden roof frame
Stage 9 – Attaching the greenhouse wooden structure to the PVC columns
Stage 10 – Installation of the 2-inch bent PVC-pipe arches
Stage 11 – Building the greenhouse scaffolding
Stage 12 – Covering the greenhouse with plastic film

 

LIST OF MATERIALS NEEDED TO BUILD A 5 BY 30 METER AGRICULTURAL GREENHOUSE WITH ALTERNATIVE MATERIALS

WIDTH: 5 m
LENGTH: 30 m
ÁREA: 150 m2

REFERENCE MATERIALS USED IN CONSTRUCTION

1

32 PVC pipes (4 inches)

2

32 reducing couplers (4 inches to 2 inches)

3

32 two-inch bends and elbows

4

16 PVC pipes (2 inches)

5

32 steel clamps (2 inches)

6

30 battens (6 m long by 5 cm wide)

7

72 battens (6 m long by 10 cm wide)

8

24 timber boards (5 m long by 20 cm wide, to be used as the scaffolding catwalk)

9

8 iron trellis bars (12 meters long each)

10

8 iron bars (8 mm by 12 meters long each)

11

96 screws (8 mm diameter x 20 cm long)

12

96 screw nuts (8 mm)

13

192 screw washers (8 mm)

14

15 kilos of nails (18 x 27)

15

1 plastic film reel (7.60 meters wide by 105 meters long)

16

400 concrete blocks (15 cm x 40 cm)

17

3 m3 of gravel

18

4 m3 medium-sized sand

19

25 bags of cement (50 kilos each)
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About the organisation

CIDADES SEM FOME (CITIES WITHOUT HUNGER) is a non-governmental organization (NGO) which has set up sustainable agrarian projects in urban and rural areas based on organic farming. The aim is to help and teach people to manage their own business and become financially independent. Community Gardens, School Gardens and Agricultural Greenhouses have been developed on unused and neglected public and private areas within social focal points to provide jobs and improve the diets of adults and children. In 2009 the Small Family Farms Project, the organizations fourth project, has been set up in Rio Grande do Sul, to train farmers in multiple cropping as an alternative to monoculture and help them starting new businesses in organic farming.

CITIES WITHOUT HUNGER was founded in 2004 in São Paulo by Hans Dieter Temp, who has a degree in Business Administration, and is a Technician for Agriculture and Environmental Policies. In 2013 Hans Dieter Temp was selected and awarded with the title Social Entrepreneur “Changemaker” by Ashoka. CITIES WITHOUT HUNGER has received numerous national and international awards, such as the Milton Santos Award in 2014, created to honor entities and people who have contributed with the city of São Paulo. In 2012 CITIES WITHOUT HUNGER was selected by Caixa Econômica Federal for its commitment to the realization of the UN-Millennium Goals. The organization was also awarded with the Dubai International Award for Best Practices 2010 (UN-HABITAT).

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Cover Photo: Timour Chafik/studiomonaco. Translation (English & Portuguese): Katarzyna Fayterna.