A kind of roofing that was once popular in factories, outhouses, and barns, has now entered in the residential arena. Corrugated metal roofing, first introduced in 1850s, was largely utilized for agricultural, commercial, and industrial purposes. As such, any building sighted with such kind of roofing was touted to be either a barn or an industrial building. But with people taking immense interest in beautifying and enhancing the overall appeal of their roofs, corrugated metal roofing has attained immense popularity today. Depending upon the style that one wants to flaunt in their homes, corrugated metal roofing is available in different materials to choose from, such as aluminum, galvanized steel, metal with naturally oxidized finishing, steel or aluminum with pre-painted finishes, and others. Though installing a corrugated metal roofing proves to be highly expensive, but the long-lasting benefits that it comes with are comparable to none. Thus, it is best to hire a professional to get it installed, but if you do want to save the expenses incurred on employing a professional, here’s how you can do it yourself. Read on.
How To Install Corrugated Metal Roofing
Corrugated Metal Roofing
Measure the Metal
To start with the process of installing corrugated steel roofing, you have to check out how much steel you will require. Measure the length and breadth of the roof of one side. Multiply the results and double them up. This will give you the square footage of your roof. Since most corrugated metal roofing is available in sheets of 3x6 feet (18 feet), divide the square footage by 18. With this, you will get the number of sheets required for the installation.
Apply Tar Paper
Tar paper is significant to serve as a moisture barrier on the roof to prevent any kind of dampness or humidity seeping into the wood beneath. If the wood on your roof is in a good condition, you can go ahead with applying tar paper on the roof. However, if the roof has been cured with tar paper earlier, tear off the older tar paper and replace with a new one. While placing the tar paper, make sure that the layers overlap each other by at least 4 inches. Thereafter, staple the tar paper in place into the wood.
Install the First Sheet
With the help of another person, place the first sheet of corrugated metal roofing on the roof. Place it at one bottom corner of the roof such that about 2 inches of it overhangs above each edge. At the dip of the corrugation, drill a hole in the top corner of the sheet. Make sure that you do not drill the hole on the edge. Fasten the sheet into place with a screw and waterproof washer. Continue screwing the sheet over the roof by placing screws at a distance of about 6 inches around the sheet. But place the screws 3 inches apart while working along the edge of the roof.
Complete the Row
After you have successfully installed the first sheet firmly in place, continue with placing the remaining sheets in the same row to complete the lowest row first. Place the sheets over the roof such that they overlap each other by at least 4 inches. Wherever they overlap, add a bead of caulk to seal the joints. Allow the sheets to hang 2 inches from the roof at the ends of the building. Fix the sheets securely into place with screws.
On completing the lowest row, move towards installing the next row of corrugated metal roofing. Ensure that the bottoms of the sheets are placed over the top of the first row. This will prevent water from leaking into the house from the sides and top of the roof. Besides, this will help the water to flow down the roof smoothly. Fasten the roofing in place just like you did with the first row. Similarly, start moving towards the top of the roof, adding another row overlapping the precious one, until your reach the ridge line.
Cover the Ridge Line
While graduating towards the ridge line, you need to make sure that the corrugated metal roofing does not go beyond the ridge on each side. Place the sheets such that the tops of both the sheets touch each other.
To complete the corrugated metal roofing, you need to cover the roof with special corrugated ridge roofing so that the tops of the sheets are covered properly. Screw the roofing onto the sheets using screws, placed 6 inches apart running across the entire edge of the roof.
This completes the whole process of installing corrugated metal roofing. Hope you can work it out and have a water, heat, and moisture-proof roof lasting for years.