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American Wood Council

Courtesy of LEVER Architecture

Tall wood is an industry term to identify mass timber buildings that exceed the height limit for wood buildings set by the current International Building Code. Mass timber includes any product currently permitted for use in Type IV construction, such as Cross Laminated Timber, Structural Composite Lumber, glued-laminated timber, and large section sawn lumber.

Because of the unique structural and fire resistance characteristics of solid timber walls and floors (CLT) and mass timber structures, in 2016 the International Code Council appointed a balanced committee of building officials, fire officials, architects, fire protection engineers, and industry experts to examine and propose appropriate code requirements. The committee’s work can be followed at this link: ICC Ad Hoc Committee on Tall Wood Buildings

 

Tall Wood News
2016 #AWCTallWoodChat

View the story #AWCTallWoodChat on Storify.

 

Mass Timber Fire Testing

ATF Fire Tests

A team of fire experts from the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) working alongside scientists from the U.S. Forest Products Laboratory put identically furnished, multistory, one-bedroom apartments constructed of exposed, partially exposed, and unexposed (protected) five-ply cross-laminated timber (CLT) through a series of rigorously monitored fire tests. The purpose of the tests is to provide data that will help inform any recommendations the ICC Ad Hoc Committee on Tall Wood Buildings (TWB) will propose for the 2021 International Building Code. A series of five tests were conducted. Each test was designed to replicate real world conditions across five scenarios. Identical, furnished, one bedroom apartments were constructed in a multistory building. The door between the living and sleeping areas was left open in both apartments. A three minute video capturing the highlights of each test is included in this playlist.

 

SWLab AWC Test Summary

E119 Test Summary

 
Resources

Fire Safety and Protection: During the planning, construction, and occupancy of a building, fire safety is a priority.

 

  • DES600 – Tall Wood Structures: Current Trends and Related Code and Standard Changes

 
Cross Laminated Timber Fire Tests

Full Presentation – 44:00 minutes


Part 1 - Fire Test Materials – 01:24 minutes


Part 2 - Fire Test – 03:08 minutes


Part 3 - Fire Test Results – 07:54 minutes

 
Code Connections

Code Official Connections is free to qualified governmental employees and is designed for the professional needs of the code administration and enforcement community.

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Building Codes

On behalf of the industry it represents, AWC is committed to ensuring a resilient, safe, and sustainable built environment. To achieve these objectives, AWC contributes to the development of sound public policies, codes, and regulations which allow for the appropriate and responsible manufacture and use of wood products. We support the utilization of wood products by developing and disseminating consensus standards, comprehensive technical guidelines, and tools for wood design and construction, as well as providing education regarding their application.

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Fire

Resources for code and fire officials on fire performance of wood products.

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American Wood Council
 
 
 
 
222 Catoctin Circle SE, Suite 201
Leesburg, VA 20175

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