MATERIAL EVALUATION AND TESTING

Polaris experts have a vast amount of experience evaluating building materials for durability and performance-related issues. This includes structural materials such as steel, concrete, wood, and masonry, among others; as well as various fenestrations, cladding/finishes, and roofing materials. Polaris experts are well-versed in the material science associated with the behavior of these materials; and have a strong technical understanding of the material specifications and design/construction guidelines associated with these materials. With this knowledge and know-how, Polaris experts can identify material deficiencies, and distinguish between manufacturing defects, construction defects and/or design defects.

 

Single-Ply Roof Membrane Hail Damage Evaluation

Extracted Roof Membrane Sample
Evaluation at 10X Magnification
Water Column Testing

Polaris was engaged to evaluate a low-slope, single-ply membrane commercial roof for hail damage.  As part of this project, Polaris performed a joint evaluation with the insured’s representatives. The roof membrane was visually evaluated for evidence of hail impact, including hail-related fractures.

With input from the insured’s representatives, roof membrane sample locations were identified and extracted from the roof for further evaluation, including laboratory testing. These roof membrane samples were packaged and shipped to Polaris’s laboratory. Polaris visually observed each of the roof samples under 10x magnification, performed light table evaluations, and conducted water column tests in accordance with ASTM D5635.

Based on Polaris’s onsite evaluation, no visible fractures were observed in the membrane. Additionally, based on Polaris’s laboratory testing, no tears or fractures were present in the extracted samples and the samples passed the water column tests. Polaris therefore concluded that the single-ply membrane at the subject roof had not been functionally compromised by hailstone impact.

 

“Their experts are knowledgeable and personable. And their reports are detailed, organized and easy to understand. Polaris has proven themselves to be a trustworthy partner.”

- Bryan J.

Property Claims Supervisor, Insurance Carrier

Leah Long

Director of Business Development

Leah Long joined Polaris Forensics in 2025 as the Director of Business Development and Marketing, bringing over 15 years of expertise in business development and client relationship management. She is passionate about community engagement, business expansion and strategic growth.

Leah excels at building strong partnerships and facilitating effective communication, ensuring long-term success for both clients and the company. Her ability to develop and nurture key relationships plays a vital role in Polaris Forensics’ continued growth and industry leadership.

Now, as an empty nester, Leah enjoys reading, traveling, attending concerts, and trying new restaurants. Movies and golf tournaments are another way she spends quality time with valued friends and family.

Leah Long

Parasar Gosain, Ph.D., P.E.

Project Director
Fort Lauderdale, FL

Parasar Gosain is a skilled civil and structural engineer with over five years of experience. He holds a bachelor’s degree in civil engineering from Tribhuvan University, Nepal, a master’s degree, and a Ph.D. in Civil Engineering from Florida International University. As a licensed Professional Engineer (PE), Parasar has extensive expertise in building inspections, structural assessments, and forensic investigations. In addition, he holds a Level II Thermographer certification and a Drone Pilot license, enabling him to conduct thorough and comprehensive investigations with advanced tools and techniques.

Parasar’s unique combination of advanced academic qualifications and hands-on experience allows him to deliver accurate, reliable engineering solutions for complex structural challenges, prioritizing safety, sustainability, and the long-term durability of every project.

Outside of work, he likes to spend time with his wife and friends and exploring different cuisines and new flavors.