Where Do Screws Go On A Metal Roof

Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Where do screws go on a metal roof.

Metal roofs can be noisy especially during a heavy rain or hailstorm. As the screws are driven the washer presses against the metal roofing to form a water proof seal. This means that the screw will drill its own hole through the metal roofing panel and into the metal or wood substrate. Most manufacturers drill holes through the corrugated metal roofing sheets.

Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. Hidden screws are the proper way to screw down metal roofs. Metal roofing installation requires special metal roof screws that are equipped with a metal washer with a neoprene seat on the base of the washer. However you have to ensure the rubber washers have enough space to move around.

Corrugated roof panels and other exposed fastener metal roofs are usually held together with screws every 18 inches or 2 feet. Hidden screws exposed fastener installation is easier and less expensive. Metal roofs can be as much as two or three times more expensive than other roofing materials. Therefore you do not need to pre drill the holes.

However when screws are exposed to the weather in central texas they can rust and the washers can crack leading to leaks that can damage not only the roofing but also the structure of the building. Today the fasteners of choice for corrugated roofing are gasketed hex head screws with a metal and rubber washer below the head. These are where to screw down corrugated metal roofing. While the life of a metal roof is much longer investing in a metal roof only makes sense if you plan to stay in your home long enough to enjoy the cost benefits.

These screws must be installed at the proper. When screws are placed through the high ribs there is a 5 8 to inch gap between the underside of the high rib and the framing below. Install the roofing screws vertically along each rib in the panel.