Always try to measure from the ground first in order to keep yourself safe. If you must climb onto the roof to measure the space, be sure to use caution.
First square the rise by multiplying it by itself, then square the run by multiplying it by itself and add the results. Next, take the square root of that total and divide by the run to arrive at the slope factor.
For example, if your roof measures 10 feet (3. 0 m) x 10 feet (3. 0 m) and the slope of the roof is 12/12 (giving a slope factor of √(12x12 + 12x12)÷12 converts to 1. 414 in decimal form), you would multiply 10 x 10 x 1. 414 to get the total of 141 square feet of roofing.
Make sure that if you are using electric tools that none of the cords are in the way. Store the material in a readily accessible area, protected from the weather. The panels are weather-proof but staining can occur if left open to moisture
Start at the highest point and the furthest point from the trash container and take off all the old shingles, flashing, vents, and boots. Replace all these with the new metal roofing. If you come across any large nails that are sticking out, either remove them and put them in your debris container or hammer them flush so that they aren’t a danger to anyone working. If you need to reposition your gutters, do so at this point. Always remove the old roofing on a day (or set of days) when the weather is expected to be dry and sunny, as you don’t want to let any rain or moisture into your building.
Use your neoprene washer head screws to secure the metal to the sheathing. Space the screws about 12 in (30 cm) apart down the entire piece of metal. Make sure that the screws are all aligned evenly, as you will be able to see them from the ground if they are exposed-fastener metal plates. [12] X Research source For exposed fasteners, avoid over-tightening the fastener. Each fastener has a durable rubber grommet that seals the roof from the weather. Tighten the fastener just enough to seal the site. If you over-tighten and the grommet is displaced, remove and replace. Continue installing the metal panels, making sure that the edges overlap at least 1 in (2. 5 cm), or as required, with the adjacent panel. Do this until the entire roof is covered. If you feel the need for sealants, lay a bead of 100% silicone or adhesive silicone before laying the sheet down and make sure the bead is towards the edge of the bottom sheet. This will allow the silicone to squeeze out towards the edges, making it a more tight seal.
The flashing can be bent into a ‘V’ shape to fit over the top of a section (ridge) of a roof, if necessary. Depending on how wide the flashing you’re using is, you will either have to use 1 or 2 rows of screws.
