How roofing is done starts with understanding the basic steps that roofers follow to keep your home safe and dry. A typical roof installation involves removing the old roof, inspecting the frame, adding underlayment, and then installing new shingles or other materials. According to RubyHome (2025), roof installation costs range from $4 to $40 per square foot, depending on materials and labor. The whole process usually takes a few days to complete. Most homeowners hire professional roofers to handle this job because it is dangerous and requires special skills. Understanding how roofing is done helps you know what to expect when you need roof work.
What Are the Main Steps in Roof Installation?
The first step is tearing off the old roof if one exists. Workers remove old shingles, nails, and debris from the roof frame.
Next comes the inspection. Roofers check the wood structure below to make sure it is strong and not rotted. If the wood is damaged, they repair it before moving forward.
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How Do Roofers Add Protection Layers?
After inspection, roofers install underlayment. This is a protective sheet that goes under the shingles and helps keep water from leaking into your home.
They then add drip edge, which is a strip of metal that guides water away from the edges. Flashing gets installed around chimneys, vents, and skylights to seal those openings. According to This Old House (2025), in a survey of 2,000 homeowners, 79% hired contractors for roof work instead of doing it themselves.
What Materials Do Roofers Install?
The most common choice is asphalt shingles. According to RubyHome (2025), asphalt shingles cost between $4.25 and $8.25 per square foot for architectural types, and they last 20 to 30 years. Other popular materials include metal roofing, wood shakes, and clay tiles.
| Material Type | Cost per Sq. Ft. | Lifespan |
|---|---|---|
| Asphalt Shingles | $4.25, $8.25 | 20, 30 years |
| Metal Roofing | $10, $17 | 40, 80 years |
| Cedar Shingles | $8, $14.30 | 30+ years |
| Slate Tiles | $12, $22 | 60, 150 years |
How Long Does a Roof Last?
Most roofs last between 25 and 50 years. According to RubyHome (2025), the average age of roofs being replaced is just over 19 years. Metal roofs can last 40 to 80 years, while slate tiles can last 60 to 150 years.
Regular maintenance helps extend roof life. Keeping gutters clean, removing moss, and trimming tree branches all help. According to Roofer’s Guild (2025), roofing injuries are projected to cost $2.8 billion by 2025, which shows how serious this work is and why hiring professionals is smart.
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Connect with an experienced roofing services to discuss your roofing needs and schedule an inspection.