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Topic Review (Newest First)
June 13th, 2017 04:07 PM
Vishal Kotkar
Re: tnau roof gardening

Green roofs offer several ecological, economic and other benefits to the urban environment.

These include mitigation of the urban heat island effect, provision of natural habitat for plants and animals, reduction of dust, smog and noise levels, improved storm water management and water quality and reduced energy use.

Green roofs also provide owner incentives such as increased life of roofs and enhanced quality of life.

Types:

Green roof substrate is the key component of any green roof system. Green roof is divided into two types.

Extensive Roof / Green roofs
Intensive Roof(Roof Garden)

This classification is based on the depth of the substrate (growing medium) used. If it is less than 15 cm, it is called as extensive green roof. If the depth is more than 15 cm, it is called as intensive roof garden.

Characteristic Extensive Intensive
Growing Medium Depth 150mm or less >150mm
Accessibility Often inaccessible Usually accessible
Fully saturated weight Low High
48.8-170kg/m2 244-1500 kg/m2
Plant diversity Low Greatest
Cost Low High
Maintenance Minimal Varies, but is generally high

Building and installation of roof gardens:

Layers of roof garden
Water proofing
Drainage layer
Growing media
Plant selection
Irrigation

Installation:
1 Roof deck water proofing
2 Protection layer is laid to avoid root penetration to the concrete roof
3 Installation of draincells
4 After installation of drain cells
5 Installation of filter layer- geotexile sheet
6 Substrate is poured over the sheet and leveled
7 Design and planting
8 Vegetation after planting

Source:

Department of Floriculture and Landscaping
TNAU,Coimbatore-3.

Contact-

TNAU
PG Hostel,68, Tamil Nadu Agricultural University, PN Pudur, Coimbatore, Tamil Nadu 641003
June 13th, 2017 04:07 PM
Unregistered
Re: tnau roof gardening

I want to get the details of Roof Gardening at Tamil Nadu Agricultural University (TNAU) so can you provide me?
November 30th, 2015 12:27 PM
nilesh
tnau roof gardening

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