Haag Engineering is proud of its 96+ years of engineering expertise. Below is a sampling of some important technical papers Haag Engineering and Research & Testing has published.
*Haag also publishes a monthly blog with informative and timely articles by our engineers and other technical staff.
White Paper: Impact Testing of Impact Resistant Shingles, Haag Research & Testing Co.
Misconceptions of Wind Damage to Asphalt Composition Shingles, by Scott Morrison, P.E., Carlos Lopez, Ph.D., P.E., and Jonathan Goode, Ph.D., P.E.
A White Paper: Hail Damage to Composition Shingles, Haag Engineering Co.
Tower Crane Life Expectancy, by Jim D. Wiethorn, P.E., Matthew R. Gardiner, P.E., Anthony E. Bond, P.E., Edward P. Cox, P.E., PhD, and Ray A. King, E.I.T.
Protocol for Assessment of Hail-Damaged Roofing, by Timothy P. Marshall and Richard F. Herzog
Long-term Effects of Hail Impact on Asphalt Shingles, by Scott J. Morrison
Ball Peen Hammer Test, by Timothy P. Marshall and Scott J. Morrison
Wind Effects on Asphalt Shingles, by Timothy P. Marshall, Scott J. Morrison, Richard F. Herzog, and Jeffrey R. Green
Hail Damage to Asphalt Roof Shingles, by Timothy P. Marshall, Richard Herzog, and Scott Morrison
Response of Test House to Vibroseis Vibrations and Environmental Forces, by David Teasdale, Jack Kiker, Lewis Oriard, Charles Dowding, and Scott Morrison
Field Evaluation of Damage from Wind and Flooding, by David Teasdale