Get matched with top roofers in Minneota, MN

Spray foam roofs don’t stand up well to impact, so they won’t last as long as something like a tar and gravel roof and other flat roof materials in areas where extreme weather is common. Due to the reduced durability, you’ll also need more frequent maintenance and repairs for a spray foam roof, and those costs will add up over time. Spray foam roofs are relatively uncommon, so you may also struggle to hire a roofing contractor who can install one.

A roof's lifespan can range from 15 to 200 years, with an average of 25 to 50 years, depending heavily on the material, quality of installation, maintenance, and local climate. Asphalt shingle roofs are common and typically last 15 to 30 years; three-tab shingles have a lifespan of about 20 years, while architectural shingles can last up to 30. More durable materials have longer lifespans: metal roofs last 30 to 100 years, clay and concrete can last 50 to 100 years, and slate roofs can last up to 200 years with proper care. Regular maintenance, such as cleaning gutters and replacing damaged shingles, is crucial for extending the life of any roof.

If your roof has a vapor barrier, you will need approximately one square foot of roof vent for every 300 square feet of ceiling space. If there is no vapor barrier, the roof should have one square foot of roof vent for every 150 square feet of ceiling space. If you are not comfortable making this determination, a local roofing professional can help.

Some homes, like those with flat roofs, may not have eaves at all. Some contemporary-style homes also lack eaves, although many may have abbreviated eaves to divert water and protect the walls and foundation. Homes without eaves often have specific types of gutters affixed directly to the edge of the roof to provide adequate drainage.