How To Put Sheet Metal On Roof

Corrugated metal roofing generally comes in sheets that are 3x6 feet in size 18 square feet.

How to put sheet metal on roof.

Screw the metal sheets into the slat board with a wood screw every 2 feet along the edges. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. For exposed fasteners avoid over tightening the fastener. Screw a metal sheet into the wood of the roof through the tarpaper.

Pre drill the holes and use 10 by 2 in 25 4 by 5 1 cm screws with polycarbonate washers. Measure the length of the roof and the breadth of one side. Begin laying the metal sheets from the bottom to the top of the roof. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.

Multiply those numbers and then double the result for the square footage of your roof. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Adjust the lap so that the last panel completes the coverage without making a cut lengthwise. Continue across the roof until it is completely covered lapping over the previous panel by at least 2 5 inches 6 4 cm minimum.

Use your neoprene washer head screws to secure the metal to the sheathing. Measure the roof area. Overlap the rises and dips if using corrugated sheets or lay flat sheeting with a slight vertical overlap. Space the screws about 12 in 30 cm apart.

Screw in the next sheet making sure that it overlaps the first sheet. Screw the first sheet in the center as well as the edges. This is not a complete install only basic install on a bungalow i. You will need to order enough metal material to cover the entire roof and this process.

Install the metal edging around the roof s perimeter using 1 inch 3 2 centimeter roofing nails. Most metal shingles will be attached to the roof using metal shingle. Divide the square footage of your roof by 18 to give you the number of sheets you ll need. Start with one side of the house at the top of the roof.