Under 2021 IBC 1507.7.2, what is the minimum roof-deck slope for natural slate shingles?
Correct Answer
C) 4:12
The slate-shingle provision requires at least 4:12. The other slopes are below this minimum. Underlayment, fastening and other roof requirements remain separate checks. Source: 2021 IBC 1507.7.2.
Why This Is the Correct Answer
The slate-shingle provision requires at least 4:12. The other slopes are below this minimum. Underlayment, fastening and other roof requirements remain separate checks. Source: 2021 IBC 1507.7.2.
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The approved backfill procedure limits loose lifts to 8 inches for this soil and compactor. A crew places one 24-inch loose lift. What should be done?
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Under 2021 IBC conventional light-frame construction provisions, a floor joist bears directly on a wood girder, without the ribbon-strip support exception. What is the minimum end bearing on this wood support?