A little bit about steel roof installation
Now let’s suppose we wanted a metal roof or a steel roof installation. A steel roof is quite easy to install, it’s just kind of difficult to cut. I use tin snips, but you can also use an abrasive blade in a circular saw. That works quite well.
The flashing is the same except that the flashing needs to be the same type of metal and it should be the same color.
It comes in long sheets usually no longer than 12 foot lengths in residential, but you can special order longer sheets if you need them.
The sheets can overlap to increase the length and they fit closely together with the corrugations. There is an over lap side and an under lap side of the metal.
They fit tightly together and the overlap side needs to have screws put in it so the wind doesn’t get under it once two sheets are fitted together.
The screws are usually hex head wood screws with a rubber ring. The screw shouldn’t be over tightened.
The screw is in far enough when the rubber just starts to expand out. The drawing below shows where the screws should be placed for maximum strength.
When all the metal panels are installed we can now move on to the last step. The ridge cap or ridge roll is a specially designed metal panel that fits right over the ridge.
The ridge cap needs to be secured by putting screws in the ridges. That will keep the ridge from bending or buckling in places.
You can fill in the valleys under the ridge cap with roof cement to prevent wind and rain from getting in.
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