A metal roof has several advantages over a traditional asphalt roof. Though it costs more, it will not crack, warp, rot, split, or blow away. Metal roofs offer the most resistance to wind, hail, freezing, thawing, and fire. They are very energy-efficient and durable. These roofs last longer than asphalt versions and can increase the resale value of the home. You can install a metal roof by following the steps below.
You will need:
• Roof felt or 30-pound tar paper
• Roof edging
• Roof trim
• R-Panel or V-Crimp metal roofing sheets
• Roofing nails
• Metal roof screws
• Wood screws
• Chalk line
• Roofing shovel
• Metal snips
• Tape measure
• Nail pouch or tool belt
Step 1: Carefully climb the ladder and measure the height of the roof and add the desired length for an overhang, which is typically between two and four inches. Measure the length of the roof and use the dimensions to determine how much roofing and edging are required.
Step 2: There are two primary types of metal roofing material. The V-Crimp is the simplest to install and does not require any lap screws. The R-Panel is a panel sheet featuring high ridges. Learn more about both styles and determine which one is most suitable for your roof.
Step 3: Removing old shingles before installing a metal roof provides a cleaner appearance. Use a roofing shovel to tear the composite shingles off the roof.
Step 4: Use the hammer and roofing nails to install the roof felt or tar paper on the roof, creating a base.
Step 5: Edging runs around the perimeter of a roof. Install this, securing it in place with the hammer and roofing nails.
Step 6: Metal roofing sheets can be long and difficult to handle so recruit a volunteer. Begin at the right side of the building (or the left if you are left-handed) and run one sheet of metal at a time. Install the first section so it runs vertically on the roof. Identify each two-foot section with the chalk like and secure the metal panel every two feet, using the drill and metal roof screws.
Step 7: When installing the second sheet, partially overlap the first. An R-Panel features a lip that overlaps the ridge. With a V-crimp, the crimps lie on each other.
Step 8: Continue installing sheets one by one, overlapping them, until the entire roof is covered. After installing the final full sheet, measure the amount of extra space past the roof edge. Create a mark just beyond this location and cut along the row with the metal snips. Screw the final sheet into place.
Step 9: Install trim to cover all sides of the roof along the edges and at the top peak. Trim may need to be notched in the middle to make it bend more easily over roof ridges.