Wood Storefront / Curtainwall

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Author Message J. Peter Jordan Senior Member Username: jpjordan Post Number: 1073 Registered: 05-2004 Posted on Tuesday, April 02, 2019 - 12:47 pm:    I have a project where the designer wants to use a "timber" storefront/curtainwall system. The project is located in a central business district on a low-rise commercial building. It will be subject to a relatively wind load. I seem to remember that the code required certain type of exterior cladding to be non-combustible materials. Can anyone tell me where this is in the IBC or have I been driving too much between Houston and Dallas? J. Peter Jordan, FCSI, AIA, CCS, LEED AP, SCIP Gail Ann J. Goldstead, AIA, CSI, CDT, LEED AP, BD+C Senior Member Username: ggoldstead Post Number: 18 Registered: 03-2015 Posted on Tuesday, April 02, 2019 - 01:37 pm:    IBC 2018 SECTION 603 COMBUSTIBLE MATERIAL IN TYPES I AND II CONSTRUCTION 603.1 Allowable materials. Combustible materials shall be permitted in buildings of Type I or II construction in the following applications and in accordance with Sections 603.1.1 through 603.1.3: 1. Fire-retardant-treated wood shall be permitted in: 1.2. Nonbearing exterior walls where fire-resistance-rated construction is not required. *** As for fire-resistive rating requirement for the exterior wall material, it depends on how far away from the property line or other building it is. Also, check with the timber storefront/curtainwall manufacturer. Gail Goldstead Richard Gonser AIA CSI CCCA SCIP Senior Member Username: rich_gonser Post Number: 152 Registered: 11-2008 Posted on Tuesday, April 02, 2019 - 02:11 pm:    I would suggest a wood look powder coat on a standard aluminum system. Jerome J. Lazar, CCS, CSI Senior Member Username: lazarcitec Post Number: 1983 Registered: 05-2003 Posted on Tuesday, April 02, 2019 - 02:16 pm:    Received email from Faux Finish from linetec today: Linetec introduces Aged Light Oak and Aged Dark Oak two new wood grain finishes for aluminum Ronald L. Geren, FCSI Lifetime Member, AIA, CCS, CCCA, CSC, SCIP Senior Member Username: specman Post Number: 1538 Registered: 03-2003 Posted on Tuesday, April 02, 2019 - 02:29 pm:    Section 1405.1 addresses combustible exterior wall coverings on Types I, II, III, and IV buildings. However, storefront and curtain wall would not be considered an exterior wall covering by code definition but would be considered an opening; thus, a window. Opening protection would be required based on fire separation distance per Tabel 705.8. Ron Geren, FCSI Lifetime Member, AIA, CCS, CCCA, CSC, SCIP Dan Helphrey Senior Member Username: dbhelphrey Post Number: 17 Registered: 12-2018 Posted on Friday, April 05, 2019 - 08:38 pm:    IBC §603.1, Item 6.