C-39 Roofing Trade Practice Test 1| Answered 100% Correctly| 2025

C-39 Roofing Trade Practice Test 1| Answered 100% Correctly| 2025 Composition flashing (base flashing) should be fastened with: One- inch solid cap-head nails or Nails driven theough tin disks Pitch pockets or pitch boxes: Are not recommended because they require extensive maintenance Reinforced concrete can be used as a structural deck. Which of the following is a correct statement? Some moisture will remain in concrete decks even after the surface is dry Roofing insulation and membranes must be protected from latent moisture in concrete decks. In northern climates, this is usually accomplished with: A vapor retarder or A venting sheet Steel decks should be at least _______ or heavier. 22g Insulation applied to steel roof decks before the roof membrane is installed should be applied: In two separate layers where insulation thickness permits The top flanges of a steel roof deck should be installed: Perpendicular to the roof slope The maximum deflection allowed for a steel deck is: 1/4" per 100 feet If the steel decks must be spot-welded to structural steel, puddle welds _______ or larger in diameter are recommended. They should be made on washers and spaced at least _______ on center. 1/2 inches ... 12 inches If thermosetting insulation is used over structural decks, the density should be: 18 to 22 pounds per cubic foot The correct density for thermosetting insulation is accomplished by: Compacting Thermosetting insulation is compacted in two layers if the total thickness is greater than: 6 inches Thermosetting insulative fills must be protected from latent moisture in roof decks. Which of the following procedures is recommended?