Norma Astm

rma astm
Designation: E 2400 – 06

Standard Guide for

Selection, Installation, and Maintenance of Plants for Green Roof Systems1
This standard is issued under the fixed designation E 2400; 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 lastreapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.

1. Scope 1.1 This guide covers the considerations for the selection, installation, and maintenance of plants for green roof systems. 1.2 This guide is applicable to both extensive and intensive green roof systems. 1.3 The values stated in SI units are to be regarded as the standard. The valuesgiven in parentheses are for information only. 1.4 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 to determine the applicability of regulatory limitations prior to use. 2. Referenced Documents 2.1 ASTM Standards:2 E 631 Terminology ofBuilding Constructions E 2114 Terminology for Sustainability Relative to the Performance of Buildings 3. Terminology 3.1 Definitions: 3.1.1 For terms related to building construction, refer to Terminology E 631. 3.1.2 For terms related to sustainability relative to the performance of buildings, refer to Terminology E 2114. 4. Summary of Guide 4.1 This guide covers the selection criteria for plantsto be used on green roofs. Primary considerations are as follows: 4.1.1 Design intent, 4.1.2 Aesthetics, 4.1.3 Climate; including both macroclimate and microclimate,
1 This guide is under the jurisdiction of ASTM Committee E60 on Sustainability and is the direct responsibility of Subcommittee E60.01 on Buildings and Construction. Current edition approved Jan. 15, 2006. Published February 2006. 2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.

4.1.4 Plant characteristics, including the rate of establishment, longevity, and disease and pest resistance, and 4.1.5 Media composition and depth. 4.2This guide covers the installation of plants for green roofs. Installation methods include: 4.2.1 Precultivation, and 4.2.2 Direct planting on roof (seeds, root cuttings, and plugs). 4.3 Guidance is also provided for the maintenance of plants for green roofs. 5. Significance and Use 5.1 This guide addresses performance characteristics for green roof systems with respect to the planting. A rooftop isan extreme environment with strong and variable wind patterns and little or no protection from the sun’s intense heat and ultraviolet radiation. Selection of plant material can be crucial for success of the green roof system. 5.1.1 This guide provides general guidance only. It is important to consult with a professional horticulturist, green roof consultant, or work with similar professionalsthat are knowledgeable, experienced, and acquainted with green roof technology and plants. 5.2 Determining these performance characteristics of green roof systems provides information to facilitate the assessment of engineering aspects of the facility. Such aspects may include structural design requirements, mechanical engineering and thermal design requirements, and fire and life safety requirements.5.3 Determining these performance characteristics of green roof systems provides information to facilitate assessment of the performance of one green roof system relative to another. 6. Selection 6.1 In general, green roofs can be categorized into two types, intensive or extensive, depending on the plant material and planned usage for the roof area. 6.1.1 Intensive green roofs—Intensive green...