Building Code Requirements Regarding the Use of Fire Retardant Treated Lumber in Floor/Ceiling and Roof/Ceiling Assemblies Bearing on Exterior Walls of Type III Buildings

Issue Date: 
Wednesday, April 12, 2017
Updated Date: 
Tuesday, June 13, 2017

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DrJ provides engineering and related services specializing in light-frame construction.

Structural engineering services are not currently offered in Illinois.

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