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B3/61 Contractor Trade Prep Questions and Verified Correct Answers
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B3/61 Contractor Trade Prep Questions and Verified Correct Answers Which of the following classes of asphalt shingles would have the best fire rating? Class C Class A Grade A Class B - Correct Answer Class A IBC: 1505.2 IRC: R902.1 When installing strip wood flooring what is the recommended minimum staggered distance of the butted joints from those of the preceeding row? 9 inches 15 inches 6 inches 12 inches - Correct Answer 6 inches A weep screed shall be placed a minimum of how many inches above the earth? 4 inches 8 inches 6 inches 2 inches - Correct Answer 4 inches IRC: R703.7.2.1 IBC: 2512.1.2 Materials used for sprayed foamed-in- place roof insulation on type III and IV buildings shall comply with ASTM C 1029
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