Roofing & Weatherproofing Standards Flashcards
7 cards from real CCI practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Roofing & Weatherproofing Standards flashcards as text
What is the minimum required headlap for standard three-tab asphalt shingles installed on a 4:12 slope per NRCA guidelines?
Answer: 2 inches
NRCA guidelines require a minimum 2-inch headlap for standard three-tab asphalt shingles on slopes of 4:12 and greater.
A built-up roofing (BUR) system uses alternating layers of bitumen and what other material?
Answer: Reinforcing felts or ply sheets
BUR systems consist of alternating layers of bitumen (asphalt or coal tar) and reinforcing felts or ply sheets to create a monolithic membrane.
When inspecting a metal roof, what minimum clearance should be maintained between the bottom edge of metal roofing panels and the finished grade?
Answer: 6 inches
Metal roofing panels should maintain a minimum 6-inch clearance from finished grade to prevent corrosion from soil contact and moisture wicking.
Under IBC requirements, what is the wind uplift rating category that roofing materials in a hurricane-prone region must typically meet?
Answer: FM 1-60 or higher
FM Global's FM 1-60 or higher wind uplift classification is commonly required for roofing assemblies in hurricane-prone regions.
What type of flashing is installed at the junction where a roof deck meets a vertical wall to prevent water infiltration?
Answer: Step flashing
Step flashing consists of individual L-shaped metal pieces interwoven with shingles at the roof-to-wall junction to channel water away.
According to ASTM standards, what does a Class A fire rating for roofing materials indicate?
Answer: Effective against severe fire exposure
ASTM E108 Class A indicates the roofing material is effective against severe fire exposure, offering the highest level of fire protection.
What is the primary purpose of a cricket or saddle installed behind a chimney on a sloped roof?
Answer: To divert water around the chimney and prevent pooling
A cricket or saddle is a peaked construction behind a chimney that diverts water to either side, preventing it from pooling and causing leaks.