Cut Hole Through Wall With Aluminum Siding

It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool.

Cut hole through wall with aluminum siding.

Use a nibbler to cut in a straight line. Use the panel to reduce the risk of snags while cutting. While cutting at the width of the aluminum siding make use of straight tin snips. Here s one that claims to come with a circle cutting attachment for 15.

6 pull the wall cap and duct out of the wall. I want to install a bathroom vent fan that vents to the exterior of the house straight through the wall. 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. Apply a thick bead of silicone adhesive.

Thick using a ferrous metal cutting blade. Hot metal chips will fly everywhere. I have an ancient dewalt 660 with a circle cutting attachment. Sometimes called a spiral saw or rotary cutting tool.

Step 2 cut the width. Remember that any imperfections to your cutting will be covered by the thimble. Cut across the contours of the aluminum siding with a radial arm saw. Drill pilot holes through the screw holes on the wall cap and through the mounting block siding and 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. It s basically a smallish router and used all the time for cutting holes in drywall shower walls etc. 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.

Be sure to work slowly in order to maintain the proper form. 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. Cut metal with your circular saw. If your perimeter holes touch the circle you drew then your cutting the hole will be that much easier.