How to Install Metal Roofing

Metal roofs have become ever-so popular over the last few years as opposed to other types of roofing materials. Here are some simple methods used in the construction of your new metal roof. The first step is choosing the type of metal roof.

The two basic types of metal roofs are exposed-fastener and concealed-fastener.

  • Exposed-fastener is what most homeowners use. No specialized tools are needed, and exposed-fastener is cost efficient.
  • Concealed-fastener, as the name states, hides the fasteners from plain view.

Make sure that you have the proper materials before the construction of your new, metal roof begins. There is nothing more aggravating than needing a special tool while work is in progress. Always be sure and be well prepared. Another thing to consider during installation is to make sure the metal roof fits the width or panels of your existing roof. Keep in mind most come fabricated.

Here is a general idea of how the process plays out:

  • Step one of the installation is to place sheathing over the roof. The sheathing helps as an interior ceiling to the roof.
  • Next, add 1×4 strips over the felt. The wood strips serve as a thickness to the metal roof, and helps prevent the screw from impaling through the ceiling.
  • You will need to use flashing for the eaves, which is the area of the roof that stands out beyond the outside wall of the structure. Generally this is along the lowest edging of the roof line.
  • It is important at this stage to use a method to fill and seal gaps that may occur between panels and flashing.
  • Positioning the first metal panel of the roof can be the most important step in the process due to the requirement that the panel overhang the eave by ¾ inches. Drill a row for your  screws.
  • Each metal panel from the first one out needs to lap over the high edges of each existing panel.

After all of the metal panels are installed, the finishing stages are necessary in the completion of your new roof. The final stage takes the metal panels from looking raw into a finished project. So the final two stages are as follows:

  • Areas of the edging that are sloped need rakes and gables installed. This simple process only requires wood screws, which are driven through the flashing.
  • The flashings can have some overlap of approximately two inches. The final step here includes sealing them with tape sealant.

The very last step before being able to enjoy your new roof is the installation of the peak flashing. Peak flashing is used to prevent rain and other potential hazards from seeping through the roof, and this can be done with metal sealant.

Finally the task is complete, and you can now enjoy your new metal roof. Keep in mind that if this is the first time you are working with this type of project you may want to partner up with someone who has done this before.