GAF Research Methods & Evidence-Based Practice 2 — Questions and Answers
Question 1: Which organization publishes the FM Global Property Loss Prevention Data Sheets that roofing contractors often reference for wind uplift resistance standards?
- NRCA
- FM Global (Correct answer)
- ASTM International
- UL Solutions
Correct answer: FM Global
FM Global publishes Property Loss Prevention Data Sheets that provide evidence-based standards for wind uplift resistance used in commercial roofing.
Question 2: When reviewing a manufacturer's product data sheet, which section most directly informs a contractor about the tested performance limits of a roofing membrane?
- Warranty terms
- Physical properties table (Correct answer)
- Storage instructions
- Application temperature range
Correct answer: Physical properties table
The physical properties table lists tested values such as tensile strength, elongation, and puncture resistance that define performance limits.
Question 3: A contractor notices field performance of a product differs from lab test results in the manufacturer's data sheet. What is the most evidence-based first step?
- Immediately switch to a competing product
- Document conditions and consult the manufacturer's technical support (Correct answer)
- Ignore the discrepancy as normal variation
- File a complaint with OSHA
Correct answer: Document conditions and consult the manufacturer's technical support
Documenting conditions and consulting the manufacturer's technical team allows root-cause analysis comparing controlled lab conditions to real-world variables.
Question 4: What does the term 'third-party tested' mean when referenced on a GAF product specification sheet?
- The product was tested by the contractor before installation
- An independent laboratory verified the product's performance claims (Correct answer)
- GAF's internal R&D team ran multiple tests
- The product passed a government safety inspection
Correct answer: An independent laboratory verified the product's performance claims
Third-party testing means an independent, accredited laboratory validated the manufacturer's performance claims, adding credibility to the data.
Question 5: Which roofing research concept describes the systematic review of multiple studies to reach a stronger overall conclusion than any single study provides?
- Case study analysis
- Meta-analysis (Correct answer)
- Anecdotal evidence
- Pilot testing
Correct answer: Meta-analysis
A meta-analysis combines results from multiple studies statistically, producing more reliable conclusions than any individual study alone.
Question 6: GAF's roofing system warranties require that products are installed according to the manufacturer's application instructions. Why is this considered an evidence-based requirement?
- It protects GAF from legal liability only
- Installation methods were validated through testing to achieve stated performance (Correct answer)
- It ensures contractors purchase more products
- Building codes mandate manufacturer instructions be followed
Correct answer: Installation methods were validated through testing to achieve stated performance
Manufacturer application instructions are derived from testing protocols that confirmed specific installation methods produce the warranted performance outcomes.
Question 7: What is the primary purpose of GAF's Certified Contractor program requiring continuing education on new research and products?
- To increase contractor revenue through upselling
- To ensure contractors apply current evidence-based best practices (Correct answer)
- To satisfy insurance underwriter requirements
- To promote GAF brand loyalty exclusively
Correct answer: To ensure contractors apply current evidence-based best practices
Continuing education keeps certified contractors current with evolving research, materials science, and installation techniques that represent evidence-based best practices.
GAF Research Methods & Evidence-Based Practice 2
Which organization publishes the FM Global Property Loss Prevention Data Sheets that roofing contractors often reference for wind uplift resistance standards?