How Do You Install Corrugated Metal Roofing

November 30, 2025

2 min read

To install corrugated metal roofing, you need to prep your roof, add underlayment, and screw down the metal sheets with proper spacing. Corrugated metal is a popular choice because it lasts 40 to 80 years and costs between $5.50 to $11.50 per square foot. This type of roof is lightweight, fire resistant, and great for sheds, barns, and homes. According to industry data, metal roofing now holds about 17% market share in residential roofing, up from just 10% a decade ago. Many homeowners choose metal because it can save money long-term and handles storms well.

Step 1: Prepare Your Roof Base

Start by removing old roofing materials down to the bare wood sheathing. Make sure all nails are pulled out and the surface is clean and flat.

Check for soft or damaged wood. If you find weak spots, replace those boards before installing metal sheets. This step is critical because a bad base will cause problems later.

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Step 2: Add Underlayment and Fasteners

Lay down a layer of roofing underlayment across the entire roof. This acts as a moisture barrier. Overlap each row by at least 4 inches and secure it with roofing nails.

Next, install drip edge metal along the edges. Use corrosion-resistant fasteners like stainless steel screws. According to the Roofing Contractor Magazine, proper fastening prevents 90% of metal roof failures.

Step 3: Install the Metal Sheets

Start at the bottom edge of the roof. Lay the first corrugated metal sheet so it overhangs the drip edge by 1 to 2 inches. Secure it with metal roofing screws placed in every other valley of the corrugation.

Overlap the next sheet by one full corrugation. Use 8 to 10 screws per sheet to hold it down tight. Space screws 12 inches apart along the overlap and 18 inches apart on the field.

Keep going row by row until you reach the ridge. According to RubyHome, corrugated metal installation typically costs $4 to $40 per square foot depending on quality and labor.

Step 4: Seal and Finish

Install rubber or foam closure strips under each edge to keep water and pests out. Add ridge cap metal at the top and seal joints with roofing caulk.

Install gutters and downspouts to direct water away from your foundation. According to This Old House, roofs with good drainage last 30% longer than poorly drained roofs. Your corrugated metal roof should now be ready to protect your home for decades.

Installation Step	Time Needed	Tools Required
Prep base	2-4 hours	Pry bar, hammer, level
Add underlayment	2-3 hours	Nails, roofing stapler
Install metal sheets	4-6 hours	Drill, screws, caulk
Seal and finish	1-2 hours	Caulk, closure strips

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If you need help with your roof, reach out to a trusted professional roofer for clear pricing and reliable service.