ASTM E2777-14
(Guide)Standard Guide for Vegetative (Green) Roof Systems
Standard Guide for Vegetative (Green) Roof Systems
SIGNIFICANCE AND USE
4.1 Intended Use—The intended use of this guide is to provide general information to practitioners in the fields of vegetative (green) roof design and construction. The guide encourages innovative but responsible vegetative (green) roof design, with a focus on performance and quality assurance. Numerical ranges, practical minimums, and benchmarks that are incorporated in the guide are intended for reference. Design requirements for specific projects vary and therefore qualified professionals may prepare designs with features that may vary from the recommendations contained in the guide. In all instances, vegetative (green) roof system designs shall conform to the applicable code requirements of Federal, State, Provincial or local agencies with jurisdiction.
4.2 Users—Users of this guide include: planners, developers, architects, landscape architects, engineers, general contractors, subcontractors, owners, facility managers, financial organizations related to building industry, building materials and product manufacturers, government agencies including building officials, and other building professionals.
SCOPE
1.1 This guide identifies terminology, principles and fundamental concepts including those related to sustainability, technical requirements of construction, and types of vegetative (green) roof systems used on buildings.
1.2 The considerations for sustainable development relative to vegetative (green) roof systems are categorized as follows: environmental, social, and economic as consistent with Guide E2432. (See Appendix X1.)
1.3 This guide discusses technical requirements for vegetative (green) roof systems pertaining to the following categories: plants, media, wind scour resistance, soil reinforcement, separation or filter layers, drain layers, water retention layers, protection layers, and root penetration barriers.
1.4 This guide addresses intensive and extensive vegetative (green) roof systems for roofs up to 15 % slope. Roofing/waterproofing membranes and insulation are key components of vegetative (green) roof systems, but technical requirements regarding their role in such roof systems is beyond the scope of this guide.Note 1—ASTM Technical Committees E60 and C16 have jurisdiction over the development of standards for roofing/waterproofing membranes and insulations, respectively. Some of their existing standards may be helpful in the evaluation of membranes and insulation used in vegetative (green) roof systems. As these two committees develop standards for such roofs, this guide will be revised appropriately.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: E2777 − 14
Standard Guide for
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Vegetative (Green) Roof Systems
This standard is issued under the fixed designation E2777; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
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2.1 ASTM Standards:
1.1 This guide identifies terminology, principles and funda-
C88 Test Method for Soundness of Aggregates by Use of
mental concepts including those related to sustainability, tech-
Sodium Sulfate or Magnesium Sulfate
nical requirements of construction, and types of vegetative
D1079 Terminology Relating to Roofing and Waterproofing
(green) roof systems used on buildings.
D1987 TestMethodforBiologicalCloggingofGeotextileor
1.2 The considerations for sustainable development relative
Soil/Geotextile Filters
to vegetative (green) roof systems are categorized as follows:
D2974 Test Methods for Moisture,Ash, and Organic Matter
environmental, social, and economic as consistent with Guide
of Peat and Other Organic Soils
E2432. (See Appendix X1.)
D3786/D3786M Test Method for Bursting Strength of Tex-
tile Fabrics—Diaphragm Bursting StrengthTester Method
1.3 This guide discusses technical requirements for vegeta-
D4354 Practice for Sampling of Geosynthetics and Rolled
tive (green) roof systems pertaining to the following catego-
Erosion Control Products(RECPs) for Testing
ries: plants, media, wind scour resistance, soil reinforcement,
D4439 Terminology for Geosynthetics
separation or filter layers, drain layers, water retention layers,
D4491 Test Methods for Water Permeability of Geotextiles
protection layers, and root penetration barriers.
by Permittivity
D4595 Test Method for Tensile Properties of Geotextiles by
1.4 This guide addresses intensive and extensive vegetative
the Wide-Width Strip Method
(green) roof systems for roofs up to 15 % slope. Roofing/
D4716/D4716M Test Method for Determining the (In-plane)
waterproofing membranes and insulation are key components
Flow Rate per Unit Width and Hydraulic Transmissivity
of vegetative (green) roof systems, but technical requirements
of a Geosynthetic Using a Constant Head
regardingtheirroleinsuchroofsystemsisbeyondthescopeof
D4751 Test Method for DeterminingApparent Opening Size
this guide.
of a Geotextile
NOTE 1—ASTM Technical Committees D08 and C16 have jurisdiction
over the development of standards for roofing/waterproofing membranes D4759 Practice for Determining the Specification Confor-
and insulations, respectively. Some of their existing standards may be
mance of Geosynthetics
helpful in the evaluation of membranes and insulation used in vegetative
D4873 Guide for Identification, Storage, and Handling of
(green) roof systems.As these two committees develop standards for such
Geosynthetic Rolls and Samples
roofs, this guide will be revised appropriately.
D5262 Test Method for Evaluating the Unconfined Tension
1.5 The values stated in inch-pound units are to be regarded
Creep and Creep Rupture Behavior of Geosynthetics
as standard. The values given in parentheses are mathematical
D5617 Test Method for Multi-Axial Tension Test for Geo-
conversions to SI units that are provided for information only
synthetics
and are not considered standard.
D5818 Practice for Exposure and Retrieval of Samples to
Evaluate Installation Damage of Geosynthetics
1.6 This standard does not purport to address all of the
D6637 Test Method for Determining Tensile Properties of
safety concerns, if any, associated with its use. It is the
Geogrids by the Single or Multi-Rib Tensile Method
responsibility of the user of this standard to establish appro-
D7361 Test Method for Accelerated Compressive Creep of
priate safety and health practices and determine the applica-
Geosynthetic Materials Based on Time-Temperature Su-
bility of regulatory limitations prior to use.
perposition Using the Stepped Isothermal Method
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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This guide is under the jurisdiction of ASTM Committee D08 on Roofing and contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Waterproofing and is the direct responsibility of Subcommittee D08.24 on Sustain- Standards volume information, refer to the standard’s Document Summary page on
ability. the ASTM website.
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Current edition approved May 1, 2014. Published June 2014. DOI: 10.1520/ Whenever a specific version of a standard is not identified, the most recent
E2777-14 edition of the standard shall apply.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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