Cut Hole Through Wall With Aluminum Siding

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.

Cut hole through wall with 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. If your perimeter holes touch the circle you drew then your cutting the hole will be that much easier. Cut hole in aluminum siding for bathroom vent fan my house has aluminum siding. Thick using a ferrous metal cutting blade.

It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool. Remember that any imperfections to your cutting will be covered by the thimble. Use the panel to reduce the risk of snags while cutting. 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.

Step 2 cut the width. Drill pilot holes through the screw holes on the wall cap and through the mounting block siding and wall. Sometimes called a spiral saw or rotary cutting tool. Hot metal chips will fly everywhere.

I want to install a bathroom vent fan that vents to the exterior of the house straight through the wall. Use a nibbler to cut in a straight line. I have an ancient dewalt 660 with a circle cutting attachment. 6 pull the wall cap and duct out of the wall.

While cutting at the width of the aluminum siding make use of straight tin snips. It s basically a smallish router and used all the time for cutting holes in drywall shower walls etc. You can cut mild steel up to about 3 8 in. Be sure to work slowly in order to maintain the proper form.

Cut metal with your circular saw. In our test it cut through rebar like a hot knife through butter. Tons of companies make similar tools. Apply a thick bead of silicone adhesive.