Metal roofing has become one of the most popular roofing options for homeowners, tiny house dwellers, and even commercial property owners. Whether you’re planning a new build or replacing your existing roof, understanding the pros, cons, materials, and installation considerations of metal roofing is key to making a wise investment. In this article, we’ll answer the most commonly asked questions to help you make an informed decision.
What Is Metal Roofing and Why Choose It?
Metal roofing consists of metal panels or shingles made from steel, aluminum, copper, or zinc. Compared to asphalt shingles and wood, metal roofs offer superior durability, weather resistance, and energy efficiency.
Why is metal roofing better than other roofing materials or sheets?
Metal roofing is lightweight, fire-resistant, recyclable, and capable of withstanding extreme weather. Unlike wood, which is prone to rot, or asphalt shingles that degrade over time, metal lasts significantly longer with less maintenance.
Types of Metal Roofing Materials: How to Choose the Right One
What type of metal roof is the best?
- Galvalume steel: Affordable and rust-resistant.
- Aluminum: Great for coastal climates due to its corrosion resistance.
- Copper: Long-lasting and elegant but costly.
- Zinc: Durable and eco-friendly.
What is the cheapest metal roofing?
Corrugated galvanized steel is the most budget-friendly option but offers less aesthetic appeal and insulation.
What is stone-coated metal roofing?
This hybrid roofing type combines the strength of metal with the visual appeal of traditional shingles or tiles. It’s ideal for homeowners who want both durability and curb appeal.
What is your opinion of metal shingle roofing?
Metal shingles mimic the appearance of traditional roofing while offering the longevity and energy efficiency of metal—perfect for residential applications.
Installing a Metal Roof: What You Need to Know
What should I know before I install a metal roof on my home?
- Check local building codes.
- Determine slope and load-bearing requirements.
- Plan for proper ventilation and underlayment.
- Choose between exposed fastener and standing seam systems.
What is the best roofing underlayment for a metal roof?
Synthetic underlayment is often preferred over felt due to its water resistance, durability, and heat tolerance.
Should you install felt under metal roofing?
While felt is acceptable, synthetic options are generally superior for moisture protection.
Should plywood go under a metal roof?
Yes. Plywood or another solid sheathing is typically necessary to provide structural support and prevent condensation.
Does metal roofing need sheathing?
Absolutely. It helps improve insulation, noise reduction, and structural integrity.
Can you put metal roofing directly on rafters?
In most cases, no. Solid decking (plywood or OSB) is recommended unless you’re using a specific product designed for open framing.
Design, Durability & Use Cases
Can a metal roof really last for a lifetime, or is it a gimmick?
It’s not a gimmick. With proper installation and maintenance, metal roofs can last 40–70 years or more.
How long does metal roofing last?
Depending on the material and climate, most metal roofs last 50+ years—far outlasting asphalt shingles.
Can you use metal roofing on a flat roof?
Yes, but only with a slight slope and appropriate waterproofing measures such as a standing seam design.
Can people walk on a 29-gauge metal roof?
Yes, but with caution. Always step on the rafters or support lines to prevent bending the panels.
Does metal roofing rust or fade in color?
With high-quality coatings like Kynar 500, most metal roofs resist fading and corrosion for decades.
What kind of paint do you use on a rusty metal roof?
Use rust-inhibiting primer followed by acrylic or elastomeric metal roof paint.
Metal Roofs vs Other Roofing Types
Should I install a metal roof instead of asphalt shingles?
If longevity, energy efficiency, and low maintenance are priorities, then yes—metal is a better investment.
Which is better, asphalt or metal roofs?
Metal roofs are stronger, longer-lasting, and more energy efficient. Asphalt is cheaper upfront but requires more maintenance.
Is a metal roof or standard shingles best for a new home?
A metal roof offers better long-term value, especially in extreme climates.
Are there benefits of metal roofing that outweigh its cost?
Yes. Though the initial cost is higher, the long-term savings in energy and repairs make metal roofs more economical.
Maintenance & Longevity
How to extend the life of a metal roof?
- Perform annual inspections.
- Keep the surface clean.
- Repaint or reseal as needed.
- Ensure fasteners and flashing are secure.
Can you put salt on a metal roof?
Not recommended. Salt can accelerate corrosion, especially on older or untreated metal surfaces.
Do metal roofs leak when they rust out underneath them?
Neglected roofs can develop leaks over time. Proper maintenance and coatings help prevent this.
What is the average lifespan of a metal roof?
Most metal roofs last between 40 and 70 years, depending on material and maintenance.
Performance in Unique Situations
What are the pros and cons of metal roofing for a tiny house?
Pros: Lightweight, energy-efficient, low maintenance.
Cons: Can be noisy during rain or hail unless properly insulated.
Can metal roofing panels be installed on a curved roof?
Yes, but only certain flexible profiles can adapt to curves. Specialized installation is required.
What is the best roofing material for hot areas?
Metal roofs with reflective coatings reduce heat absorption and lower cooling costs—ideal for hot climates.
Energy Efficiency, Safety & Home Value
What color metal roof is the coolest?
Lighter colors like white, beige, and light gray reflect more sunlight and help reduce attic temperatures.
How much does a metal roof increase home value?
A new metal roof can boost home resale value by up to 6%, thanks to its longevity and aesthetic appeal.
Are metal roofs worth the money?
Yes—especially when considering long-term performance, energy savings, and minimal maintenance.
Frequently Asked Practical Questions
Can you put a metal roof over 3 layers of shingles?
It depends on local codes, but generally, two layers are the max. Otherwise, tear-off is required.
Is it OK to put a metal roof over shingles?
Yes, with proper inspection and an underlayment in place, it’s a common and cost-effective method.
Can a table saw cut metal roofing panels?
Yes, but only with a metal-cutting blade. Using the wrong blade can damage the saw and metal.
Does oxidation on a steel roof make the roof slippery?
Yes, oxidation and algae buildup can create a slippery surface—use caution during maintenance.
Other Key Terms to Know
What is metal roof cladding?
It refers to the external layer of metal panels that protect the building structure from weather.
What are metal roofing services?
These include consultation, installation, replacement, repair, and maintenance of metal roof systems.
Metal Roofing in El Paso, TX?
Due to the extreme sun and storms in El Paso, metal roofs are a smart, durable, and energy-efficient choice for homes and businesses in the region.
How long does a metal roof take to install?
Depending on size and complexity, most residential metal roofs take 2–5 days to install.
How to measure a hip roof for metal – Merlin Roofing Space?
Measure the base of each side of the hip roof, calculate the area of each slope, and add them together. Many companies like Merlin Roofing offer online calculators.
Conclusion: Is Metal Roofing Right for You?
Whether you’re interested in energy savings, weather resistance, or a modern aesthetic, metal roofing offers a long list of benefits that often outweigh the upfront cost. By choosing the right material, ensuring proper installation, and conducting routine maintenance, you’ll enjoy decades of reliable performance and peace of mind.