Cut Hole Through Wall With Aluminum Siding

I want to install a bathroom vent fan that vents to the exterior of the house straight through the wall.

Cut hole through wall with aluminum siding.

Remember that any imperfections to your cutting will be covered by the thimble. Step 2 cut the width. It s basically a smallish router and used all the time for cutting holes in drywall shower walls etc. Apply a thick bead of silicone adhesive.

It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool. 6 pull the wall cap and duct out of the wall. 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. In our test it cut through rebar like a hot knife through butter.

Cut hole in aluminum siding for bathroom vent fan my house has aluminum siding. Be sure to work slowly in order to maintain the proper form. While cutting at the width of the aluminum siding make use of straight tin snips. Cut metal with your circular saw.

I have an ancient dewalt 660 with a circle cutting attachment. 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. Thick using a ferrous metal cutting blade. Here s one that claims to come with a circle cutting attachment for 15.

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. Use a nibbler to cut in a straight line. You can cut mild steel up to about 3 8 in. Hot metal chips will fly everywhere.

Sometimes called a spiral saw or rotary cutting tool. Tons of companies make similar tools. Cut across the contours of the aluminum siding with a radial arm saw. When using a hole saw to drill the hole in aluminum siding keep the saw slightly tilted to one side to reduce the chances that the hole saw will bind while cutting the hole.