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What Should a Roof Do? 

Before we start to look at the pros and cons of the most common types of roofs on the market, it is crucial to have a basic idea of what homeowners should expect from their roofs. A rooftop needs to protect your home from the elements. Leaking roofs can cause significant damage to the plywood, roofing beams, attic insulation, and ceilings. According to one estimate, “water intrusion makes up more than 70 percent of construction litigation,” and roof leaks are a significant part of that figure.

A roof also plays a significant role in insulating your home from both noise and the temperature outside. A high-quality roof is an essential acoustic solution for a quieter home. It is necessary for homes located in urban areas, where noise is a problem, or in places where high winds and heavy rains can cause unwanted noise within the home.

A good roof should also offer extra insulation for your house. About one-quarter of all heat loss in a home is through the attic or roof. High-quality insulation can undoubtedly help to reduce the total amount of heat loss. However, certain types of roofs, such as green roofs, offer natural insulation capacities. A roof also provides aesthetic quality to a home. A terra-cotta tile roof placed on top of a typical suburban home will undoubtedly add a touch of elegance to distinguish the home from others on the block.

What Is the Difference Between Price per Square Foot and Price per Square?

As you begin shopping for a new roof, you'll likely come across manufacturers, suppliers, retailers, and roofing installers that will quote either price per square foot or price per square. The price per square = the price per 100 square feet. For example, if you are quoted $3.50 per square foot, the price per square = $350.

How Long Does a Roof Last?

The lifespan of your roof depends on the roofing material you use and your local climate. If you reside in an area prone to inclement weather, such as snow, hail, or hurricanes, your roof may not last as long compared to roofs installed in moderate climates. Tile, metal, or slate roofs often last for more than 50 years. Wood shake and fiber cement shingles last 25 to 30, and asphalt or composite roofs last 15 to 20 years. It is common for architectural asphalt and composite to last about 30 years.

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How Much Do Asphalt Shingles Cost?

Asphalt shingles are often viewed as the least expensive roofing option, with an average price per square foot of $3.50 installed. Homeowners with an average roof size of 1,700 square feet can expect an asphalt roof to cost approximately $5,950‬.

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How Much Does Metal Roofing Cost?

According to one estimate, the average cost for metal roofing is about $10.00 per square foot, which would come out to roughly $20,000 for a 2,000 square foot home.

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How Much Does Slate Roofing Cost?

The average cost of material and installation ranges from $22.00 to $43.00 per square foot. This does not include potential structural changes that may be required for load-bearing.

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How Much Do Composite Roof Shingles Cost?

While composite roof installation costs are similar in their respective markets, the composite roof shingles' cost can vary greatly depending on location, manufacturer process, materials used, and quality. Once installed, the average cost of a composite roof in the United States can range between $8.50 to $12.50 per square foot.

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How Much Does Composite Slate Roofing Cost?

Composite slate can be purchased for $3.50 to $4.00 per square foot on average. Installation is often $6 per square foot; however, this installation cost varies from city to city.

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How Much Does Terracotta Roof Tile Cost?

Like slate roofs, though, terra cotta tiles are heavy and expensive. Terracotta ranges from $2 to $10 per square foot and is available in several styles, including Flat, Pantile, Spanish, Roman, French, Riveria, and Barrel Tile. The installation of Terracotta tiles ranges from $8 to $15, which is dependent on style. One estimate finds that a 2,000 square foot home might spend between $25,000 and $45,000 for a new terracotta tile roof.

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How Much Do Green Roofs Cost?

The average extensive green roof costs $10.00 per square foot, while the average intensive green roof costs $25.00. Annual maintenance can also be estimated at around $1.00 per square foot of roof space. Intensive green roofs allow larger plants than extensive as they have a deeper soil system to accommodate roots.

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How Much Does a Solar Roof Cost?

The main drawback of solar shingles is the price. According to one estimate, “the new roof design will cost around $42,500 for a 2,000-square-foot roof with 10 kW of solar capacity before tax credits (or about $21.25 per square foot).” That might sound like a lot of money for most homeowners. However, this is the only roofing option that can pay for itself in energy savings.

The bottom line is that the best type of roof for your home in 2020 will largely depend on your budget, the style of your home, and the sustainability objectives that you wish to incorporate into your home. 

Tobias Roberts

Rise Writer

Expert. Practical. Sustainable.

Article by

Tobias Roberts

Tobias runs an agroecology farm and a natural building collective in the mountains of El Salvador. He specializes in earthen construction methods and uses permaculture design methods to integrate structures into the sustainability of the landscape.

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