30 November 2015

RCI SoCal Chapter 2016 Hawaii Winter Workshop Maui 2.0

16th Annual Hawaii Winter Workshop - Maui 2.0

Topic:  Advanced Roof Wind Forensics



Phillip Dregger, PE, RRC, FRCI - Pacific Building Consultants, Concord, CA




Roof wind design in the 2001 California Building Code was based on the 50 year “fastest mile” wind speed, a fairly generous definition of an “enclosed” building, and made no reference to FM or UL wind uplift test standards.  By 2013, the California Building Code had “evolved” to require roof wind design to be based on “ultimate” 700-year 3-second gust wind speeds, a much more restrictive definition of an enclosed structure, and required all low sloped roof system be tested in accordance with FM and/or UL test standards.  And, BTW, there is still no clear direction in the building code regarding how to assess the wind uplift resistance of an existing roof covering (e.g., no reference to FM Global LPDS 1-52).


Learning Objectives:


1.  How to apply evolving and still incomplete code requirements to forensic analyses of roof coverings

2.  Code Required Wind Uplift Tests - FM 4474, UL 580, or UL 1897

3.  Design Wind Speed – Code referenced “ultimate” wind speeds and ASCE 7 referenced “design” wind speeds

4.  ASCE 7-10 - Strength v allowable design procedures (and related load combinations)

5.  FM Global LPDS 1-52 – Case history regarding how field testing was applied to determine needed repairs as part of a forensic investigation.


Program Details


Click here to register

Monday Jaurary 18th, 2016 & Tuesday Janurary 19th, 2016

The Westin Maui Resort and Spa
2365 Ka'napali Parkway, Lahaina, Maui, HI [map]

[Reservation ph. 1-866-716-8112, Special rate: $255.00+taxes/nt.]

Szymon Zienkiewicz


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Milgard - Maximum Daylight & Ventilation

CIM 2015 Holiday Party

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AIA Maui Members earn 3 HSW credits

06 October 2015

October 2015 Newsletter

2015 LightShow West

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05 October 2015

2015 LEGO Building Competition

Visit our LEGO page and our Facebook album to see photos of this year's LEGO Building Competition teams and their structures.

Congratulations to this year's winners and thank you to all the participants and volunteers!