PEMBROKE PINES, Fla. — Drive through any neighborhood in South Florida and you’re likely to see a roofing project underway. However, a foam shortage has many of these projects stuck in a standstill.

Installing a tile roof can cost anywhere from $8,000 to $90,000 depending on the roof’s size and style, but most homeowners will pay around $28,000 for a new tile roof, including labor and materials.

Answer: Many homes in the southwest feature flat roofs, also known as “pueblo style.” The frame of a flat roof will typically incorporate some slope. A roof with a slope of less than 3 inches to 1 ...