Show activity on this post. I was recently notified by my electrical company that the electrical mast routing electricity from overhead wires into my house was in not in compliance for permanent service.
The roof jack will cover an area a lot larger than the hole for the mast.
How to cut metal roofing around electrical mast. How to cut metal roofing material.a combination square (to measure) power shears (to cut) a measuring tape. Hot metal chips will fly. Roofing around a power line you need the service conductors shut off and disconnected from the mast.
You need the weatherhead removed and the mast left in place. Wrap (emc) flashing around pipe and close by crimping on stainless steel grippers. Measure for correct pipe size.
15 inch square flashing base. Perhaps a better way is to use the pilot bit to just locate the hole in the roof deck. Or just buy a new boot and cut the top part with snips and place it around the pole rivit it in two places where cut seal it with silver or light gray caulk and shingle away.
Apply shingles up to lower edge of pipe. In our test, it cut through rebar like a hot knife through butter. A nibbler is the best way to cut metal roofing, a nibbler, unlike electric shares, a nibbler can be moved more easily to cut around corners quickly and easily without jamming.
What would be the best method to add flashing around an electrical service mast that goes through a 3in12 shingled roof? Grf electrical mast flashing boot, black epdm. Make the mark dark enough and visible enough to be seen when the cut is being made.
A nibbler tool, unlike electric metal shares, can be more easily moved around to cut around corners quickly and easily without jamming the metal cutting blade. Steel roofing and trim should be cut with nibblers, tin snips or a profile shear. Supporting a mast below the roof.
Apply sealant around the top of the. Does not advocate the use of a saw, the reality is many people use a power saw in some manner. I have cut painted and unpainted galvalume metal roofing this way.
Although champion metal of wa. First, be sure that no burrs are left on the ends of the panel. I would suggest using whatever your roofing manufacturers for pipe flashings but splitting it on the downhill side and then sealing it good with.
I also have finished my gable ends and vents, but haven't painted th. Another issue is that the roofing materials are pure destruction to the hole saw teeth. Cutting metal roofing with a nibbler.
The bottom piece of metal roofing will be cut at least 12 inches further up the roof than the mast pole sits. Cut (emc) flashing opening to appropriate size for you pipe. A nibbler with its metal blade is the best tool for cutting metal roofing.
Cut metal with your circular saw. Apply sealant to the underside of (emc) base and secure base with roofing nails. The problem is that the service mast conduit must have 2 points of attachment:
You can cut mild steel up to about 3/8 in. Includes stainless steel closure clips. Outline the exact cut that will need to be made on the panel with a marker.
I use a roof sealant on the bottom edge of the boot then form it around the ribs, then screw it down and put more sealant on the screws as well as around the pipe to be sure it's sealed How to cut metal roofing around electrical mast. Electrical mast flashings oatey® invented the flashing industry more than 100 years ago.
There are two concerns when using a saw. You need an edpm rubber pipe boot of the correct size for the mast. Cut a u shape and slide the tin in the u until the pole rests at the bottom of the u shape, there will be 12 inches of roofing beyond beyond the pole.
The new mast must run through the roof(old one wasnt) and the roof is corrugated metal with 7 gaps between ribs. Thats all you really can do if you removed the old one or it needs to be replaced,as for the wire if there is a lot of tenchion on it, then it is needed and must stay, remove for the sake of the new roof and be sure. In this video i show, and demonstrate the tools that i used to cut my metal roof panels.
Run a tape measure over the diameter of the pipe and add 1/2 to 3/4 inch to that before making the cut.