6/7/2023 0 Comments Houses with flat roofs![]() On flat roofs, drainage systems ensure that water drains properly. Knowing the material and size of your roof is a great start to understanding how much your roof replacement will cost, but several other factors also affect your new flat roof estimate. ![]() It’s only slightly more expensive than fiberglass. It’s a great option if you want something that looks like a traditional shingle or tile. Glass-reinforced plastic (GRP) is a fiber-reinforced polymer that resists cracking and ice dams and prevents mold and mildew growth. On average, it costs between $4 – $6 per square foot. It is typically less expensive than decorative materials such as slate or tile. Fiberglass or GRP RoofĪ type of fiber-reinforced plastic, fiberglass is lightweight, durable, and fire-resistant. The average cost per square foot of TPO roofing ranges from $3 – $14, including materials and labor. It is easy and lightweight to install and doesn’t require much maintenance. It’s popular for commercial buildings because it is watertight and can last for decades. Thermoplastic polyolefin roofing is a synthetic material. In general, this roof runs from $4 – $7 per square foot. The cost per square foot depends on the type of material you use and the size of the project. Some brands advertise that it is waterproof and termite-resistant. A single-ply membrane roof can last up to 40 years and has many benefits. It can be used with a variety of underlayments. Single-ply membrane is an asphaltic rolled roofing system installed in one piece. The cost of a rubber membrane roof ranges from $4 – $13 per square foot on average. Rubber roofing can withstand hail, wind, and heavy snow, unlike other flat roof materials. ![]() It’s so durable that it can last up to 50 years-which is probably why many homeowners choose it. Rubber Membrane RoofĮPDM (ethylene propylene diene monomer) rubber is one of the most affordable roofing materials. This material has an average cost of $4 – $10 per square foot. BUR, also known as gravel-and-tar roofing, is a type of roofing made from multiple layers of felt and asphalt. If you’re looking for a cost-effective roof replacement that’s easy to maintain and lasts for years, built-up roofing (BUR) may be the right solution. It will cost more if an existing roof needs to be removed. These roofs generally cost $4 – $8 per square foot installed. Modified bitumen roofs consist of five layers-insulation, modified base sheets, modified bitumen membranes, adhesive, and surfacing. It can withstand heavy environmental pressure and has a high tensile strength, meaning it won’t break easily under tension. Modified bitumen, an asphalt-based roof material designed for low-sloped roofs, has been used in the United States since 1975. Costs vary based on factors such as your location, the size of your roof, and the type of metal roofing you choose. They can withstand extreme weather conditions such as high winds and hail.Īn average flat roof replacement project can cost anywhere from $4 – $30 per square foot. Many people love metal roofs because they’re versatile, beautiful, and long-lasting. *Cost figures in this article were sourced from HomeAdvisor and internal data. Depending on the material, flat roofs typically last just 10 –15 years, although some flat roof materials can last for decades. Flat roofs can’t be built with asphalt shingles, though, because water does not drain off them properly. Asphalt shingles are the most popular material for sloped roofs and last up to 20 years. Some homeowners enjoy the versatility of flat roofs and use the space to plant rooftop gardens.įlat roofs usually don’t last as long as their sloped cousins, however. You won’t need to spend hours working with complex architectural details.įlat roofs are energy efficient, keeping homes warm in the cold months and cooler in warm climates. Generally, flat roofs are cheaper to install than other types of roofs and may cost less to repair or replace because fewer materials are involved. These roofs may be called single-ply or single-layer roofs. They are typically composed of a single layer of waterproof material, often made up of a deck board with felt and adhesive layers, but sometimes made from a sheet of metal. Flat roofs are roofs that are pitched at 10 degrees or less.
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