Search Results for “roof course”
series: Mastering Roof Inspections. Take InterNACHI's free, online Roofing Inspection Course. Mastering Roof Inspections: Roof Framing, Part 1 and Roof Framing, Part 2 Roofing Underlayment Types Inspecting Underlayment on Roofs Fall-Arrest Systems Roofing (consumer-targeted) More
Get Started Grow Your Business More… Show Menu Join InterNACHI® Jump to flashcard menu Home Inspection Flashcard #62 Currently only showing flashcards in the Roofing category. Clear filters What's Your Call? Why is the metal roof rippled and what problems does it cause? a. Manufacturing defect
at the sidewall. b. Seams will not prevent moisture intrusion. c. Visible fasteners attach to the shingle in the course below, not to the roof. d. Fastened with drywall screws, which will eventually corrode. Show Details / Explanation You must be logged in as an InterNACHI member to see this card
at A, corrosion may spread to metal lathe installed behind stucco, requiring stucco removal for repair, a potentially much more expensive problem than B, in which the roof has no direct interface with the exterior wall-covering materials. b. Corrosion on A is more widespread and uniform and so
Get Started Grow Your Business More… Show Menu Join InterNACHI® Jump to flashcard menu Home Inspection Flashcard #41 Currently only showing flashcards in the Roofing category. Clear filters What's Your Call? What is the most likely source of damage to this metal roof? a. Poor storage practices b
exposure to weather. b. Crevice corrosion caused by stacking panels while they were wet (before installation on the roof). c. Galvanic corrosion from coating aluminum-core panels with galvanized steel. Where the galvanic coating wears thin, moisture catalyzes corrosion. d. Surface corrosion from
from an over-driven fastener. b. Galvanic corrosion, fastener is different metal from roof steel. c. Filiform corrosion, developing from micro-cracks at hole drilled for fastener. d. Surface corrosion developing from moisture trapped against the roof at the time the roof mastic was applied. Show
