FLORIDA BUILDING COMMISSION
Structural Technical Advisory Committee
Minutes
December 10, 2007
10:00 A.M. – 11:30 A.M.
Double Tree Hotel
5780 Major Boulevard
Orlando, Florida 33819
407-351-1000
Meeting Objective:
1. The Committee approved agenda and minutes without modification.
Attendees Do Kim, Paul Kidwell, Craig Parrino, C.W. Macomber, Dave Olmstead, George Wiggins, Rusty Carroll, Jack Glenn, Jaime Gascon,
2. Reviewed and provided recommendation to the Commission on the requests for Declaratory Statement below:
ISSUE: DCA07-DEC-182. Petitioner seeks a Declaratory Statement concerning wind design for mechanical systems in existing buildings.
Committee Action:
1. To the question, Are exterior mounted mechanical units (Cooling towers, fluid coolers, etc), which are subjected to wind forces, required to have the mechanical structure and anchorage designed to withstand the applied wind force?, the answer YES, mechanical equipment and supports being replaced during a Level 1 Alteration shall meet the wind design criteria in Section 1609 of the current edition of the Florida Building Code.
2. To the question, Are exterior mounted mechanical units (cooling towers, fluid coolers, etc), which are subjected to wind forces, required to have the wind design data on all construction documents?, the answer is YES, information related to wind loads shall be shown on the construction documents .
ISSUE: DCA07-DEC-183. Petitioner seeks a Declaratory Statement on an interpretation of Section 407.1.2 of the Florida Building Code, Existing Building, concerning wind design for mechanical systems in existing buildings.
Committee Action:
1a. To the question, Are the wind forces the mechanical equipment applies to the building, to be determined from the wind design criteria that was in effect when the building was originally permitted, or is the current Florida Building wind criteria for mechanical equipment to be used?, the answer is that mechanical equipment and supports being replaced during a Level 1 Alteration shall meet the wind design criteria of the current code, not the code in effect when the building was originally constructed. Section 407.1.2 of the 2004 Florida Building Code, Existing Building, is not applicable for Level 1 Alterations.
1b. To the question, On a Level 1 Alteration, which was permitted when the mechanical equipment was not required to be designed for wind forces, does the new mechanical equipment structure need to be designed for the wind forces?, the answer is YES, the new mechanical equipment structure needs to be designed for wind forces specified in the 2004 Florida Building Code for both the structure and anchorage of mechanical equipment. Unanimous.
Issue: DCA07-DEC-255. The petitioner seeks a declaratory statement for installation requirements for a Florida approved garage door relative to fastener and component information and the required applicable factor of safety, when the product is installed to wood vertical jambs used in conjunction with a concrete block building. The petitioner states that t he situation they are citing involves fastener and component information in a planned future Florida product approval application, to be submitted by a garage door manufacturer, for a garage door attached to wood vertical jambs used in conjunction with a concrete block building. Additionally, they advise that fasteners associated with garage doors are typically in two categories: 1. Those involved in the garage door assembly, including attachment to the vertical wood jambs, and 2. Those required for building attachment but are not a part of the tested garage door assembly, i.e. those attaching the vertical wood jambs to the concrete block.
Committee Action:
Question One : Will Product testing per ANSI/DASMA 108 qualify all of the door assembly components, including fasteners attaching the garage door assembly to the vertical wood jambs?
Answer: No, the door assembly components, including fasteners attaching the garage door assembly must be provided with documentation that demonstrates that they meet the material requirements of the code sections 1714.5.4.1 which require anchoring systems to provide equal or greater anchoring performance to the manufacturers installation instructions, as demonstrated by accepted engineering practice .
Question Two : Will engineering analysis qualify the jamb-to-building frame fasteners if sufficient factor of safety is demonstrated ? (emphasis added)
Answer: Yes. Section 1714.5.4.1 of the FBC, requires anchoring systems to provide equal or greater anchoring performance to the manufacturers installation instructions, as demonstrated by accepted engineering practice . (emphasis added) unanimous.
3. Discussed whether the Commission action on DCA07-DEC-085 applies to all Rule 9B-72, Methods of Compliance (i.e., Test Report, Evaluation Report, and Certification Mark or Listing). However, they deferred action until an appropriate request is submitted to address this issue.
4. Discussed issues relating to product #FL9024 as requested to the Product Approval Program Oversight Committee (POC).
Committee Action: There is no specific information in the Florida Building Code or the reference material (including reference standards),
to show that the MOE has to be done on the component (OSB) or the composite “Agriboard”
5. Discussed proposed Standard FM 4881 as equivalent to TAS 201, TAS 202, and TAS 203 (Jeffrey Gould). Created a stand alone appendix incorporating TAS 201, TAS 202 and TAS 203. FM 4881 Appendix FLA move to limit to metal, concrete, and composite type wall panels excluding glazing, and that it follows all the current parameters used in the approval of these products in the HVHZ. Unanimous
6. Adjourn.
Note: This document is available to any person requiring materials in alternate format upon request. Contact the Department of Community Affairs, 2555 Shumard Oak Boulevard, Tallahassee, Florida, 32399-2100 or call 850-487-1824