Fiber Cement Shingle Damage

Our engineers can determine if damage to fiber cement shingles is the result of a product defect, storm event or other cause.


Knott Laboratory’s structural engineers are experts in inspecting fiber cement shingles, also known as masonite, Woodruf, Cemwood and Permatec, for hail and wind damage. Our forensic engineers have performed destructive testing on Woodruf shingles gaining valuable data regarding the wind forces required to damage these shingles. Utilizing calculations, experience, research and testing data, our engineers can determine if damage to fiber cement shingles is the result of a product defect, storm event or other cause.

Through Knott Lab Academy, our engineers offer a free 1 hour course (approved for Wyoming Insurance Adjuster Continuing Education Credit) on inspecting fiber cement shingles. This course is popular with the SIU groups and can be taught at either your facility or ours.

Publications List

The experts at Knott Laboratory have been published in many engineering journals. While most of these essays are quite detailed, these short abstracts express a summary of the overall papers that were published.

Forensic Engineering Use of Computer Animation and Graphics

Journal of the National Academy of Forensic Engineers
December, 2006

Newest Trends in Accident Reconstruction

The Lawyer’s LogBook, Vol. 2, No. 5
2013

Experts in the Field

Our forensic engineers are experts in accident reconstruction, failure analysis and cause & origin. Our forensic engineers work directly with our in-house animation department to create state-of-the-art forensic animations for use in court, arbitration, mediation or settlement negotiations.

Stanley C. Stoll, M.Eng., P.E., CFEI, CVFI

Director of Structural Engineering

(970) 640-5928
sstoll@knottlab.com

Cade R. Caldwell, P.E.

Engineering Manager

(303) 925-1900
ccaldwell@knottlab.com

Kyle T. Wieghaus, Ph.D., P.E.

Engineering Manager

(970) 631-5290
kwieghaus@knottlab.com

Tim R. Phelan, M.S., P.E., S.E, M.L.S.E.

Engineering Manager

(303) 925-1900
tphelan@knottlab.com

View Samples of our Work

Since 1982, Knott Laboratory has been providing comprehensive forensic engineering and computer animation services to reconstruct accidents.

What others have to say about our work


High Profile Cases

Knott Laboratory has become the leader in forensic engineering and computer animation by investigating high profile cases and conveying our analysis effectively during litigation.