InterNACHI Interior Components and Finishes 5 — Questions and Answers
Question 1: A home inspector tests a window and finds it painted shut. How should this be reported?
- It is acceptable as it reduces air infiltration
- It is a deficiency because windows must be operable for egress and ventilation (Correct answer)
- It is only a concern in rooms designated as bedrooms
- It should be noted only if the window is in a room below grade
Correct answer: It is a deficiency because windows must be operable for egress and ventilation
Painted-shut windows are a deficiency because operable windows are required for emergency egress in sleeping rooms and for natural ventilation throughout the home.
Question 2: What does 'crown molding' primarily serve in a room's interior?
- It acts as a structural tie between the wall and ceiling framing
- It provides a decorative transition between the wall and ceiling surfaces (Correct answer)
- It conceals plumbing or electrical chases along the ceiling perimeter
- It serves as a nailer for ceiling drywall panels
Correct answer: It provides a decorative transition between the wall and ceiling surfaces
Crown molding is a decorative trim element installed at the junction of walls and ceilings to provide a finished aesthetic transition between the two surfaces.
Question 3: An inspector observes that the grout between ceramic floor tiles in a kitchen is darker in some areas and lighter in others. What does this uneven coloration most likely indicate?
- Different batches of grout were used during installation
- Moisture beneath the tile is wicking up through cracked grout joints (Correct answer)
- The tiles were installed at different times
- The floor receives uneven sunlight exposure
Correct answer: Moisture beneath the tile is wicking up through cracked grout joints
Uneven or dark grout coloration often indicates moisture migrating up through compromised grout joints from beneath the tile, suggesting a moisture problem below the floor.
Question 4: What type of insulation is commonly identified by its pink, yellow, or white fibrous appearance and is most often found in attic floors?
- Cellulose insulation
- Fiberglass batt or blown insulation (Correct answer)
- Spray polyurethane foam (SPF)
- Rigid foam board insulation
Correct answer: Fiberglass batt or blown insulation
Fiberglass insulation, which comes in batt form or can be blown loose-fill, is the most common attic insulation and is recognizable by its pink, yellow, or white fibrous appearance.
Question 5: During a home inspection, the inspector discovers that a bedroom closet has been converted into a small bathroom without permits. What is the primary concern from an inspection standpoint?
- The closet is too small to meet standard bathroom dimensions
- Unpermitted work may have been done without required inspections, creating potential safety and code deficiencies (Correct answer)
- The plumbing fixtures may be a different brand than the rest of the home
- The conversion reduces the home's bedroom count
Correct answer: Unpermitted work may have been done without required inspections, creating potential safety and code deficiencies
Unpermitted conversions bypass required inspections, meaning plumbing, electrical, and structural work may not meet code, creating hidden safety hazards.
Question 6: What condition is indicated when an interior drywall surface shows a pattern of cracks that resemble a spider web or map?
- Structural failure of the wall framing behind the drywall
- Shrinkage cracking in a thick skim coat or plaster finish (Correct answer)
- Impact damage from objects hitting the wall
- Moisture intrusion from inside the wall cavity
Correct answer: Shrinkage cracking in a thick skim coat or plaster finish
Map or spider-web cracking on a drywall or plaster surface is characteristic of shrinkage cracking in a thick skim coat or plaster finish as it dried and cured.
Question 7: According to InterNACHI inspection standards, which of the following is NOT a required inspection item for interior components?
- Testing every electrical outlet in the home for correct polarity (Correct answer)
- Inspecting walls, ceilings, and floors for visible defects
- Operating a representative number of windows and doors
- Inspecting steps, stairways, and railings
Correct answer: Testing every electrical outlet in the home for correct polarity
InterNACHI standards require inspecting a representative number of outlets, not every single outlet; testing every outlet in the home is beyond the scope of a standard home inspection.
InterNACHI Interior Components and Finishes 5
A home inspector tests a window and finds it painted shut.
How should this be reported?