How to Install Corrugated Metal Roofing
Corrugated metal roofing has gotten a bad reputation over the years, due to warehouses and factories using the material improperly. Technology advancements have improved the quality and appearance of corrugated metal. This metal roofing is considered to be a good investment because of the effectiveness of keeping particles and other elements from the structure it is covering.
Supplies needed:
- Steel tape
- Chalk like
- Claw hammer
- Nail apron
- Utility knife
- Electric saw (circular, with a carbide-tipped blade)
- String
- Measuring tape
- Three-inch sheet-metal roof nails
- Ridge caps (six foot)
- Corrugated metal sheets (metal roof panels)
- Take measurements of the length of the roof’s ridge in inches; divide the length measurement by 44 (this is the width of the metal sheets). The number you receive will be the amount of metal sheets you will need. Measure the length from the top of the roof to the edge; measure the length in feet; divide the measurement by six in order to find out how many columns of metal sheeting will be necessary. The number of columns multiplied by the number of rows will give you an estimate of how many metal panels you will need.
- Measure the edges of the roof and the length of the ridges on the top of the roof; calculate the measurements in feet. Divide the calculation by six to estimate the number of six-foot ridge caps you will need.
- Staple standard roofing felt, ever two to three inches on the outside edges of the felt, and every six inches on the interior. The felt should be overlapped by three inches.
- Place a metal sheet in the corner of the roof, hanging over the edge by two inches. Specialty nails and watertight washers should be used to secure each sheet. Place nails in the center of the ridge of metal where it bends away from the roof. Use at least twenty nails per sheet.
- Place another metal sheet next to the first one; the ridges of the two sheets should be overlapping. Add caulk between the sheets where they are overlapped. Nail the sheet in place and continue to repeat these steps until you have completed the bottom row.
- Add the first roof panel of the second row; the panel should overlap the top of the first sheet by approximately six inches. Repeat this step until all sheets are nailed securely in place.
- Line the slope edges and the ridge of the roof with ridge caps.