How many rolls of roofing underlayment do you need for 1500 squrare of roofing?

To determine the number of rolls of roofing underlayment needed for 1,500 square feet of roofing, you first need to know the coverage area of each roll, which typically ranges from 200 to 400 square feet. Assuming a standard roll covers 300 square feet, you would need 5 rolls (1,500 ÷ 300 = 5). It's advisable to purchase an extra roll to account for waste and overlaps, so getting 6 rolls would be prudent.