Commercial roofing in Laurel, FL

A new low-slope roof needs a minimum design slope of one-fourth unit in 12, which is 2 percent, for built-up, modified bitumen, single-ply, spray foam and liquid-applied systems. Drainage is the next question: the code defines positive drainage as water gone within 48 hours of rain. Laurel's normal rainfall is about 49 to 51 inches a year, with roughly 60 percent falling June through September. Ask each bidder how the roof will drain in those months.

The code requires secondary overflow drains or scuppers wherever a parapet might hold water on the roof. Water covers 11.0 percent of Laurel's total area, so ground and roof water both matter on a site near a pond or canal. Look for overflow drains on every bid.

Laurel is unincorporated, so Sarasota County Planning and Development Services handles roof permits. Check the county building office to find out which requirements apply right now. The county offers virtual inspections for re-roof permits, at the dry-in and flashing stage and again while the roof is in progress, through VuSpex.

Compare bids on scope, not on the headline number alone. Check that each bid names the membrane standard, such as ASTM D6878 for TPO, and says whether it tears off or recovers. A roof that is wet, or one already holding two or more coverings, cannot be recovered. Ask about the 25 percent rule as well: repair more than 25 percent of a roof in 12 months and the whole roof section must be brought to current code, unless the roof was built or redone under the 2007 code or later.

Check the contractor's state license on the state licensing lookup before signing. A general contractor who lacks certification or registration as a roofing contractor may not advertise under that title.