Quck answer
Aluminum flashing is commonly used for waterproofing and protecting structures. To cut aluminum flashing, follow these steps:
1. Measure and mark the desired length of the flashing.
2. Use a straightedge or ruler to create a straight cutting line.
3. Score the cutting line using a utility knife or tin snips. Apply firm pressure to create a deep groove.
4. Bend the flashing along the scored line to create a clean break.
5. If needed, use tin snips or aviation snips to trim any excess or uneven edges.
Remember to wear safety goggles and gloves when working with aluminum flashing to protect yourself from sharp edges.
Aluminum flashing is used to protect the fascia board of your home from the weather. There are various ways to cut aluminum flashing, as it is thin and flexible. If you don’t have a manual jump shear, you can use tin snips or a utility knife. Tin snips are effective at cutting through aluminum flashing, but they cause the flashing to curl and not sit flat, which can create gaps between the flashing and the fascia board.
Step 1
Set up two sawhorses parallel to each other, about five feet apart. Place a piece of 5/8-inch plywood measuring four feet by eight feet across the sawhorses.
Step 2
Take a length of aluminum flashing and place it on the plywood.
Step 3
Using a tape measure, measure the length you need to cut the aluminum flashing and mark it with a carpenter’s pencil. Make a second mark on the other edge of the flashing.
Step 4
Align a straightedge with the two marks you made on the flashing.
Step 5
Place the blade of a utility knife on the side of the straightedge, just off the edge of the flashing.
Step 6
Apply pressure and pull the utility knife towards you, making sure to make one pass over the flashing.
Step 7
Remove the straightedge and pull the loose end of the flashing towards the scored line until it snaps.
Step 8
Use a rubber mallet to lightly tap the cut end of the flashing to flatten it and complete the cut.
