“规格检查”:符合规格的准确性关键,成功的项目

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下载信息图Imagination and creativity are critical skills that enable architects to create beautiful, vibrant and sustainable buildings. However, one aspect of successful projects that often goes under the radar is the glass specification. From project conception to completion, specifications provide a necessary “check and balance” to ensure that the proper products are being used and that current industry standards are being followed.

Writing accurate, detailed and up-to-date glass specifications is an indispensable part of the process. With the sheer level of detail required in these instructions – from precise performance criteria such as glass characteristics and thermal and optical properties, to surface orientation for low-e coatings in an insulating glass unit (IGU) – architects must be diligent in making sure their specifications convey all the information that downstream suppliers need to successfully execute their responsibilities on a project. Considerations include:

  • 是否适当地解决了您的项目的最关键规格,并强调了足以告知整个供应链中的相关方?
  • 通用规格(例如,玻璃的一般指南)是否反映了最新的语言和标准?
  • 玻璃产品是否仍由供应商制造为玻璃规范?
  • Does the glass product specified for the project meet or exceed the related ASTM standard?
  • What process is in place to ensure that changes to the specs are properly communicated?

在玻璃规范中的数百个潜在变量中,诸如此类的问题加强了建筑师对每个项目彻底审查玻璃规范的需求,以确保最终结果满足所有利益相关者的期望。

常规规格问题
玻璃供应链中的所有各方都依靠准确,最新的玻璃规范来完成项目的一部分。每个人还负责审查与行业标准,特殊要求或特定建筑师请求的任何偏差的这些规格。

尽管绝大多数玻璃规格都没有出现问题,但偶尔会出现错误,从对建筑建筑物的外观不满意的开发人员到更换项目上所有玻璃的后果,因为错过了性能规范。
Here are some common practices that result in faulty specifications:

  • Copied and pasted specs.从类似项目中复制和粘贴信息可以节省时间;但是,在规范写作中使用此快捷方式可能会导致对已退役的不正确产品和文档的引用。即使规格包含标准的通用语言,对于每个项目的审查,玻璃规格和建筑代码偶尔会改变,也至关重要。
  • Outdated standard and test method references.Referencing obsolete standards and test methods can yield additional costs or installations that aren’t up to code. In addition, customers can receive inferior products or products that don’t meet current standards. Be aware of industry performance standards that have been updated or withdrawn, and double-check that any standard referenced in a specification reflects the most current version.
  • Incorrect products.此问题以多种方式表现出来,包括为特定应用程序指定错误或已终止的产品,或引用与指定制造商不符的产品品牌。不要“过度指定”。例如,可能不需要指定钢化玻璃来满足代码。还要确保诸如低E涂层,不透明剂和弗里特之类的治疗适用于Igus和Spandrels中的表面。

避免规格不正确的其他保障措施包括:

  • 验证主格式数字是当前的
  • Confirming that referenced companies and suppliers are still in business
  • Ensuring there are no contradictory requirements between different sections of the spec document
  • 确保正确的性能要求归因于指定的产品;和
  • 提供有关要指定产品组成的准确信息。

宝贵的资源
Several major trade organizations have developed publications or provide guidance that architects can – and should – reference to ensure that the specifications comply with the latest industry standards. These organizations include:

  • 北美玻璃协会(GANA)现在与国家玻璃协会(NGA)相结合,为建筑玻璃和金属行业提供服务,包括玻璃承包商,全方位服务的玻璃公司,玻璃制造商,主要玻璃制造商,主要玻璃制造商和该行业的供应商。加纳产生Gana玻璃手册, a comprehensive set of recommendations and guidelines for all aspects of glazing applications and methods. The information was developed, vetted and approved by committees representing glass suppliers, fabricators, glazing contractors and other trade organizations.
  • Insulating Glass Manufacturers Alliance (IGMA), an international standards-development association for the insulating glass industry. Alliance members include insulating glass manufacturers and suppliers of related equipment, services and materials. IGMA’sNorth American Glazing Guidelines for Sealed Insulating Glass Units for Commercial and Residential Usecontains advisory guidelines on all aspects of IGUs, such as glass types, framing, glazing clearances, setting blocks, spacer shims, and glazing materials and systems.
  • 美国建筑制造商协会(AAMA),代表住宅和商业部门的窗户,门,天窗,窗帘墙和店面制造商。AAMA由Fenestration产品制造商及其材料和组件供应商组成的成员制定和更新标准,这些标准在许多国家和州建筑法规中被引用,并参与了年度国际法委员会代码的收养。
  • American National Standards Institute (ANSI), which coordinates the U.S. private-sector, voluntary standardization system. ANSI provides a neutral forum for the development of policies on standards issues and serves as a watchdog for standards development and conformity assessment programs and processes for hundreds of industries. The ANSI Z97.1 standard establishes the specifications and methods of testing for the safety properties of safety glazing materials used for all building and architectural purposes. This standard is an important element in architectural specifications for safety glazing compliance.
  • 美国测试和材料学会(ASTM),制定并提供自愿共识标准。通过140多个技术标准编写委员会,ASTM为广泛的行业(包括用于建筑建筑的建筑眼镜)提供了建议和规格。
  • 国家Fenestration评级委员会(NFRC)是一个独立的非营利组织,建立了窗口,门和Skylight Energy绩效评级。

体外玻璃的帮助
A complement to these industry resources is Vitro Glass’ “Construct” tool, which lets architects search, construct and compare virtual configurations for monolithic glazings, multi-pane IGUs, and decorative and spandrel glasses. Three-part specifications in the Construction Specifications Institute (CSI) format can be quickly generated for any configuration created in “Construct,” as long as it contains 100-percent Vitro Glass products. This 3-part specification is presented in a generic format that requires some minimal input to make it a complete architectural specification.

3部分CSI规范列出了单个玻璃配置的性能数据,例如玻璃厚度,可见光透射率,内部和外部反射率,冬季夜间U值,太阳热增益系数和光 - 极性增益比。

概括
One of the keys to a successful building project – one that achieves the look architects envisioned when they designed and spec’d the job – involves the development of and adherence to accurate specifications.

尽管建筑师为构建项目定下了基调,但供应链中的所有其他元素,包括玻璃承包商,制造商和原材料供应商,负责将其选定的组件符合最终的玻璃规范。每个方还可以从确保这些规格准确,透彻并反映最新的行业标准中受益。

GANA/NGA,IGMA和AAMA等众多资源,供应行业的最佳实践,建议和规格应引用,以实现准确的玻璃规范的开发。这些组织中的每个组织都包括经验丰富的专业人员,他们是“行业的声音”,以开发建筑玻璃贸易的建议和最佳实践。

要了解有关玻璃规范过程的更多信息,以及有助于编写清晰,最新规格的资源,请访问www.vitroglazings.comor call the Vitro Architectural Services Team at1-855-VTRO-GLS (887-6457)