How To Install Corrugated Metal Roofing

November 28, 2025

2 min read

To install corrugated metal roofing, you need to prepare your roof deck, add underlayment, secure the metal panels, and seal all seams and fasteners. This type of roofing is popular because metal roofs last 40 to 80 years, according to RubyHome (2025). Metal roofing costs between $5.50 and $11.50 per square foot with installation, making it a mid-range choice for homeowners. The work is hard but doable if you follow the right steps. Most people hire professionals, but understanding the process helps you ask the right questions. This guide breaks down each step so you know what to expect.

What You Need Before You Start

First, gather your tools and materials. You will need a metal roof kit, underlayment, roofing nails or fasteners, sealant, a drill, a saw, and safety gear. Check that your roof deck is clean and dry before starting.

Your roof must be able to hold the weight. Metal roofing weighs less than tile or slate, which helps. Make sure gutters are ready too.

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Step 1: Prepare and Measure Your Roof

Measure your entire roof area in squares. According to RoofLink (2025), the average U.S. roof size is 2,647 square feet, or about 26.47 squares. One square equals 100 square feet. Write down all measurements.

Remove old roofing if needed. Clean the deck of all debris and nails. Fill any gaps or holes.

Step 2: Install Underlayment and Flashing

Underlayment goes under the metal panels. It stops water from leaking through. Roll it out from bottom to top, overlapping each row by 6 inches.

Add flashing around chimneys, vents, and edges. Flashing is metal trim that directs water away. Secure it with fasteners every 12 inches.

Step 3: Install Metal Panels

Start at one edge and work across. Line up the first panel straight. Use roofing fasteners (not nails) spaced 12 to 18 inches apart. According to RubyHome (2025), corrugated metal installation costs range from $4 to $40 per square foot total.

Installation Step	Key Detail
Measure roof	Calculate total square footage
Add underlayment	Overlap rows 6 inches
Secure panels	Use fasteners every 12-18 inches
Seal seams	Apply sealant to all overlaps

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Step 4: Seal and Finish

Seal all seams with roofing sealant. This stops leaks. Pay special attention to overlaps and edges.

According to IBISWorld (2025), the U.S. roofing contractor industry reached $81.3 billion in market size. Most homeowners hire professionals for this work because it requires skill and safety knowledge. Metal roofing remains popular because it lasts so long and handles storms well.

Contact a qualified roofing services for expert guidance on roof repair, replacement, or installation.