Florida Building Commission

Building (Structural) Technical Advisory Committee

Meeting Minutes

August 5, 2013

2:00 P.M. – 2:58 P.M.

Teleconference Meeting from Tallahassee, Florida

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TAC/POC Members and Objectives

Structural TAC Members Present: James Schock, CW Macomber, Steve Strawn, Daniel L. Lavrich, Do Y. Kim, Jack Glenn, Jamie Gascon, Warner Chang, Harry “Rusty” Carroll

Ø Objectives: Discuss and recommend potential research topics, comments to the Rule Development Workshop comments, Consideration of Declaratory Statement DS 2013-053

Meeting Agenda
Objective	Review of objectives will include the following: Description of issue, discussion by TAC, public comment, TAC action
1)	Welcome and Opening, Roll Call Reviewed and Approved the August 5, 2013 Meeting Agenda Reviewed and Approved the June 12, 2013 Meeting Minutes
2)	Discussed and recommended the following potential research topics for consideration by the Commission: 1. Joe Belcher for the Aluminum Association of Florida (AAF) Project to evaluate the efficacy of the AAF Guide and a sample of popular engineering currently employed in the field with regard to the design and construction of screen enclosures in high wind events. 2. Rusty Carroll Determine what types of hurricane straps in existing buildings are acceptable for insurance purposes. 3. Jim Schock Develop retrofit guidelines for strengthening room or area within an existing home necessary to achieve an acceptable level of protection from sever windstorm. 4. Joe Belcher Evaluate the structural integrity of the fastening specification for wood structural panels currently prescribed in the FBC.
3)	Reviewed comments related to the 2013 Update to the FBC for the purpose of making recommendation(s) for consideration by the Commission during the Rule Development Workshop on Rule 61G20-1.001, F.A.C. to be held in conjunction with the August 22-23, 2013 Commission meeting. The TAC reviewed two proposed Glitch Fix code change modifications and took action as to their disposition. One mode “S1” was found to meet the Glitch criteria and it was approved as submitted with a unanimous vote. The second proposed modification “S2” was also found to meet the Glitch criteria and it was approved as a mended with unanimous vote. TAC Tracking Sheet for the comments is made part of these minutes by reference.
4)	Reviewed and provided the following recommendations on Declaratory Statements and other business on behalf of the Commission.  DS 2013-053 by Jared Cejka of Pella Windows & Doors QUESTION #1: Since the window has a design pressure that has been tested and is based on allowable/nominal wind loads, and this product is being installed in a structure with pressures determined in accordance with ASCE/SEI 7-10 based on strength design loads; is the correct course of action to multiply the building’s strength design loads by 0.6 as indicated by 1609.1.5 to allow for appropriate design pressure comparison to the window’s design pressure? Answer: “Yes”. According to Section 1609.1.5 of the 2010 Florida Building Code, Building, design pressure determined using ASCE 7 – 10 is permitted to be multiplied by .6 for the purpose of comparing the design pressure for the product in question to that of the building. QUESTION #2: Is the intent of table R301.2(2) meant to be interpreted as listing strength based design pressures based on ultimate wind speeds, thus requiring a conversion using the 0.6 multiplier as indicated in sections R612.5 and R301.2.1.7 to allow for a proper comparison to the allowable pressures that the window has been tested to? Answer: “Yes”. According to both R301.2.1.7 and R612.5 of the 2010 Florida Building Code, Residential, the design pressure determined from Table R301.2(2) is permitted to be multiplied by .6 for the purpose of comparing the design pressure for the product in question to that of the building.
5)	Adjourned at 2:58 PM

Staff Contacts: Kenneth H. Cureton, Planning Analyst ken.cureton@myfloridalicense.com

(850) 717-1828 or Mo Madani, Manager mo.madani@myfloridalicense.com

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