Cut Hole Through Wall With Aluminum Siding

6 pull the wall cap and duct out of the wall.

Cut hole through wall with aluminum siding.

Then using a jigsaw cut on the line from hole to hole until you have completed the circle you may need to find blades that will go all the way through otherwise you will need to repeat this process from both sides which is a bit of a pain. You can cut mild steel up to about 3 8 in. In our test it cut through rebar like a hot knife through butter. Cut metal with your circular saw.

Hot metal chips will fly everywhere. If your perimeter holes touch the circle you drew then your cutting the hole will be that much easier. Use the panel to reduce the risk of snags while cutting. Drill pilot holes through the screw holes on the wall cap and through the mounting block siding and wall.

It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool. I have an ancient dewalt 660 with a circle cutting attachment. While cutting at the width of the aluminum siding make use of straight tin snips. Sometimes called a spiral saw or rotary cutting tool.

Use a nibbler to cut in a straight line. Be sure to work slowly in order to maintain the proper form. Cut hole in aluminum siding for bathroom vent fan my house has aluminum siding. If you notice that the saw binds pull the hole saw away from the siding tilt the hole saw in a different direction and restart drilling the hole.

I want to install a bathroom vent fan that vents to the exterior of the house straight through the wall. Tons of companies make similar tools. It s basically a smallish router and used all the time for cutting holes in drywall shower walls etc. Step 2 cut the width.

Thick using a ferrous metal cutting blade. Assuming you ve got access from below to the joist space you can use tin snips also called aviation snips to cut the siding and a hole saw or reciprocating saw sabre saw or sawzall to cut. Remember that any imperfections to your cutting will be covered by the thimble. Here s one that claims to come with a circle cutting attachment for 15.