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  (Articles, Briefs and Papers

authored by Lonnie Haughton)


Owner-Builders, Permitting, and Licensing Requirements in California


Position Paper -- Use and Misuse of Wheel Stops at Parking Spaces in California


An Abridged History of the San Francisco Bureau of Building Inspection: 1944 to 1992

(A definitive chronology of San Francisco’s building laws and codes from 1906 to 1992, this 78-page report documents dramatic post-World War II storylines within the Bureau of Building Inspection, including tense turf wars with the Fire Department and the Board of Permit Appeals; the origins and development of the City’s current building codes and the doomed decades-long battle against State control of these codes; the career (and death in 1985) of renowned Superintendent Robert C. Levy; ongoing efforts to modernize management and record-keeping processes; and the Bureau’s stout response to the 1989 Loma Prieta earthquake. As reported several years later: “The devastating earthquake of October 17 provided the Bureau with its greatest challenge. Within minutes, BBI received reports of significant damage across the entire City. Phones were down, power was out, and towards the Bay, smoke could be seen billowing towards the sky. The needs of the public were overwhelming, and all too soon darkness began to fall.”)


Abridged History of San Francisco Bureau of Building Inspection: Part II (1993-1994)


A Chronology (1928-1990) of S.F. Code Requirements for Live Load Resistance at Railings


Water 101 (Contractor's Introduction to the Properties of Water) - 2015


Qualitative Sampling of the Building Envelope for Water Leakage

Journal of ASTM International ( Vol. 4, No. 9 (10/2007)

(STP 1493: Repair, Retrofit, and Inspection of Building Exterior Wall Systems)

(A key reference resource for this JAI paper is Michael Quinn Patton's excellent book:

Qualitative Research & Evaluation Methods by Sage Publications.)


Quantification of Defects via Expert Extrapolation - Lies, Damn Lies and Statistics?

Forensic Expert Witness Association symposium - November 11, 2008


Qualitative Sampling v Statistical Analysis v Daubert

FEWA Quarterly Newsletter ( (04/2008)

(This article provides an introduction to the peer-reviewed paper, Qualitative Sampling of the Building Envelope for Water Leakage, published in the Journal of ASTM International.)


"In the end, the core of the scientific method for all quantitative and qualitative surveys consists of a puzzle-solving strategy or methodology for analysis (or elimination) of rival explanations or hypotheses. This strategy may start its puzzle solving with hypothesis (i.e., quantitative analysis) or it may start with evidence (i.e., qualitative analysis). The quantitative survey begins by forming a hypothesis that can be evaluated statistically upon later collection of evidence, while the qualitative survey starts the puzzle-solving process by collecting evidence from which substantive explanations will emerge. In both cases, the core of the scientific method is represented by the strategy of analysis of plausible rival hypotheses." (Credit for this insightful perspective belongs to M.Q. Patton and also to Donald Campbell from his acclaimed foreword to R. K. Yin's book: Case Study Research: Design and Methods by Sage Publications.)


Flashing 101 - the 1% Rule (revised 2009)


The 4 D's of Building Envelope Design (revised 2009)


Anatomy of a Leakage Investigation at a Concrete Floor Slab

FEWA Quarterly Newsletter ( (10/2008)

(This article originally was published in the July 2008 issue of Interface magazine.)


Use and Misuse of Historic Building Codes for Injury Trip and Fall Claims

Defense Comment magazine, Association of Defense Counsel of Northern California and Nevada (10/2007)


Evaluating Wood-Based Composites for Incipient Fungal Decay

(lead author is C.A. Clausen of U.S. Forest Products Laboratory)

Interface magazine (RCI, Inc., previously Roof Consultants Institute):

(February 2018) "Value-Engineered" Waterproofing Errors

(November 2017) Improper Use of Self-Drilling Tapping Screws in Stucco Cladding

(March 2017) Solving a Complex Moisture Intrusion Problem

(February 2017) Brief History of Code-Required Fire Blocking in Concealed Spaces

(November 2015) Stucco Adhesion - Preliminary Mockup Testing

(July 2015) Analyzing Solar-Driven Moisture through Two Rain-Wetted Cladding Assemblies

(July 2014) Solar-Driven Waves of Water Vapor within Exterior Wall Cavities

Press Release:

(August 2013) - Bayes' Rule, Bayesian Thinking and the Extrapolation of Destructive Testing Data

(November 2012) - Forensic Processes for Water Intrusion Investigations

(January 2010) - Overview of ASTM E2128

(January 2010) - Building Codes and Industry Standards

(November 2009) - Concrete Slab-on-Grade Moisture Tests

(November 2008) - Qualitative Sampling v Statistical Analysis v Daubert

(July 2008) - Anatomy of a Leakage Investigation at a Concrete Floor Slab

(June 2008) - The Wet Season for Paper-Faced Gypsum

(October 2005) - Roofing/Waterproofing Details and the Architect's Standard of Care

(August 2004) - Variables for Forensic Evaluation of Degradation of 'Wet' OSB Panels

(June 2003) - 'Moisture Exchange' Performance of OSB and Plywood Structural Panels