A roof replacement is one of the biggest financial commitments a homeowner will make, we've put together a guide of roofing materials that will help you make the right decision for your home or business.
Commonly called asphalt shingles, these are the most popular residential roofing material in the country. Most products consist of a fiberglass mat between two layers of asphalt. Tiny stones embedded in the top help protect the shingles from the sun’s damaging rays.
Basic three-tab shingles have slits in the front, so each piece looks like three small shingles. Architectural shingles are a more upscale choice. They are thicker, longer-lasting, and don’t have slits where debris can collect. They also create a more textured look, which many people prefer.
Benefits: Relatively inexpensive, and all roofers know how to install them. Good fire resistance. Some types are suitable for hail regions and available with wind warranties up to 130 mph. May contain zinc or copper to inhibit algae growth.
Drawbacks: Typically last only 20 years and need periodic cleaning to remove moss and debris.
Wood Shingles and Shakes
Traditional and beautiful, wood is no longer as popular because quality has declined, and because of rising concerns about fire. Shakes are thick and have a rough, split surface; shingles are thinner and sawn flat. Both types must be installed over spaced boards, not solid sheathing, so the roofing can dry.
Benefits: In dry climates, shakes and shingles perform well; some shakes have up to a 50-year warranty. Thicker shakes can be used where hail is severe.
Drawbacks: Not fire-resistant unless treated, so some building codes prohibit them. Thinner products can be damaged by hail. In wet climates, wood must be cleaned periodically to remove moss and lichen.
Metal Panels and Tiles
Once found mostly on commercial and farm buildings, metal roofing is now the fastest-growing residential roofing material. There are two basic kinds: standing-seam panels and tiles. Panels come in pieces around 16 inches wide and up to 20 feet long, so they reach without a seam from the ridge to the gutters. Metal tiles can mimic the look of wood shingles or shakes.
Benefits: Extremely long-lasting; some come with lifetime warranties. Good fire resistance, and some styles are strong enough to resist wind and heavy hail. Panels go up quickly and require little maintenance.
Drawbacks: Higher initial cost than composition shingles. Tile roofs have numerous grooves that trap leaves, so they need frequent cleaning.
Clay or Concrete Tiles
Red clay tiles are an essential feature of Spanish-style homes in much of the Southwest and Florida. In addition to traditional styles, clay and concrete tiles can mimic wooden shingles or shakes, while others look almost like slate.
Benefits: Long-lasting; some manufacturers offer lifetime warranties. Well-suited to relatively dry climates, and will not burn.
Drawbacks: Heavy, so the roof structure must be able to support the weight. They can be damaged by hail. Concrete tiles are moss magnets in damp climates; use glazed tiles instead.
Quarried in the Northeast and Virginia, slate is much more common in the East than in the West. Because slates hang from nails and are not glued down, they are best suited for fairly steep roofs that shed water quickly.
Benefits: Slate can last for decades, doesn’t burn, and sheds snow and rain well.
Drawbacks: Slate is expensive and requires skill to install and repair, which can be an issue where such roofs are rare. The roof structure must be able to support the heavy weight.