CA Materials & Techniques 2 — Questions and Answers
Question 1: When estimating a roof replacement, what is the standard waste factor typically added for a complex hip roof compared to a simple gable roof?
- 5%
- 10%
- 15% (Correct answer)
- 25%
Correct answer: 15%
Complex hip roofs typically carry a 15% waste factor due to multiple valleys and angles requiring additional cuts.
Question 2: Which type of insulation is most commonly found in wall cavities of homes built in the 1960s–1970s that may pose a health hazard during claims?
- Spray polyurethane foam
- Blown-in cellulose
- Urea-formaldehyde foam (Correct answer)
- Rigid fiberglass board
Correct answer: Urea-formaldehyde foam
Urea-formaldehyde foam insulation was widely used in the 1960s–70s and later found to off-gas formaldehyde, posing health risks.
Question 3: A public adjuster identifies 'efflorescence' on a brick wall during a claim inspection. What does this indicate?
- Structural failure of the mortar joints
- Water migration through the masonry depositing mineral salts (Correct answer)
- Mold growth beneath the brick veneer
- Thermal expansion cracking of the brick
Correct answer: Water migration through the masonry depositing mineral salts
Efflorescence is the white chalky deposit left on masonry surfaces when water carries soluble salts to the surface as it evaporates.
Question 4: What is the primary purpose of a 'drip edge' in roofing systems?
- To provide additional nailing surface for shingles
- To direct water away from fascia and into the gutter (Correct answer)
- To prevent ice dam formation at the eaves
- To seal the gap between decking and fascia board
Correct answer: To direct water away from fascia and into the gutter
A drip edge is a metal flashing installed at roof edges to direct water away from the fascia board and into the gutter system.
Question 5: When adjusting a hardwood floor claim with 'cupping,' what is the most likely cause an adjuster should document?
- Excessive foot traffic causing mechanical wear
- Moisture imbalance with more humidity on the underside of boards (Correct answer)
- UV exposure causing differential expansion
- Improper nail spacing during original installation
Correct answer: Moisture imbalance with more humidity on the underside of boards
Cupping occurs when the underside of hardwood flooring absorbs more moisture than the top face, causing boards to bow upward at the edges.
Question 6: Which roofing material has the longest expected useful life and is often found on historic homes in claims?
- Architectural asphalt shingles
- Wood shake shingles
- Slate tiles (Correct answer)
- Concrete tile
Correct answer: Slate tiles
Natural slate roofing has an expected lifespan of 75–150 years, making it the longest-lasting common roofing material.
Question 7: What does 'R-value' measure in building materials, and why is it important in property claims?
- Resistance to fire spread, affecting fire damage claims
- Thermal resistance of insulation, affecting heating/cooling system claims (Correct answer)
- Load-bearing capacity of structural members
- Reflectivity of roofing surfaces for energy calculations
Correct answer: Thermal resistance of insulation, affecting heating/cooling system claims
R-value measures a material's thermal resistance to heat flow; higher R-values indicate better insulation, which is critical when calculating replacement costs for insulation damage.
CA Materials & Techniques 2
When estimating a roof replacement, what is the standard waste factor typically added for a complex hip roof compared to a simple gable roof?