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Significance and Use
4.1 This guide is intended to provide building professionals with a methodology for conducting periodic condition assessments of building facades, for the purpose of determining if conditions exist in the subject facades that represent hazards to persons or property. It addresses the performance expectations and service history of a facade, the various components of a facade, and the interaction between these components and adjacent construction to provide a stable and reliable enclosure system. This guide was written as a parallel document to Practice as well as potential uses in conducting facade inspections as required by authorities having jurisdiction. Practice is written in the imperative form as a Standard Practice and is designed for adoption by specifying authorities. This guide is intended as a dissemination of explicit knowledge gained from experience of conducting periodic facade inspections. Implicit in this guide are general facade inspection techniques that have been tailored for periodic inspections. These tips and techniques are shared to provide a comprehensive template from which a facade inspection program can be tailored.
4.1.1 Qualifications—Use of this guide requires knowledge of basic physics, construction and building exterior wall design principles and practices.
4.1.2 Application—The sequential activities described herein are intended to produce a complete and comprehensive evaluation program, but all activities may not be applicable or necessary for a particular evaluation program. It is the responsibility of the professional using this guide to determine the activities and sequence necessary to perform an appropriate condition assessment for a specific building properly.
4.1.3 Preliminary Assessment—A preliminary assessment may indicate that localized conditions in a wall system exist which are limited to a specific element or portion of a wall. The evaluation of causes may likewise be limited in scope, and the procedures recommended herein abridged according to the professional judgment of the investigator. A statement stipulating the limits of the investigation should be included in the report.
4.1.4 Expectations—Expectations about the overall effectiveness of a condition assessment program must be reasonable, and in proportion to a defined scope of work and the effort and resources applied to the task. The scope and effort of facade inspections is defined by the purchaser and provider of such services. The objective is to be as comprehensive as possible within a defined scope of work. The methodology in this guide is intended to address the intrinsic behavior of a facade system. Since every location throughout the building facade is not likely to be included in the evaluation program, it is possible that localized conditions of distress may not be identified. Conditions that are localized or unique may remain, and require additional evaluation. The potential results and benefits of the condition assessment program should not be over-represented.
4.2 This guide is not intended for use as listed below. In each instance, more appropriate standards or guides exist.
4.2.1 As a design guide, design check, or a guide specification. Reference to design features of a wall is only for the purpose of identifying items of interest for consideration in the condition assessment process.
4.2.2 As a construction quality control procedure, or as a preconstruction qualification procedure.
4.2.3 As a diagnostic protocol for evaluating buildings for water leakage or other performance related problems.
4.2.4 As a sole evaluation of facade damage arising from natural or manmade event/disasters.
1.1 This guide is intended to establish procedures and methodologies for conducting inspections of building facades including those that meet inspection criteria for compliance with Practice as well as potential uses in conducting facade inspections as required by authorities having jurisdiction. For the purposes outlined in this guide, unsafe conditions are hazards which could result from loss of facade materials.
1.2 Investigative techniques discussed may be intrusive, disruptive or destructive. It is the responsibility of the investigator to establish the limitations of use, to anticipate and advise of the destructive nature of some procedures, and to plan for patching and selective reconstruction as necessary.
1.3 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard may involve hazardous materials, operations, and equipment. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Awareness of safety and familiarity with safe procedures are particularly important for aboveground operations on the exterior of a building and destructive investigative procedures that typically are associated with the work described in this standard.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E631 Terminology of Building Constructions
E2270 Practice for Periodic Inspection of Building Facades for Unsafe Conditions
E2505 Practice for Industrial Rope Access
ICS Number Code 91.060.10 (Walls. Partitions. Facades)
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ASTM E2841-19, Standard Guide for Conducting Inspections of Building Facades for Unsafe Conditions, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top