It s not necessary to cut all the way through the vinyl.
How to cut vinyl siding around windows.
Cut a 1 inch notch out.
When using tin snips to cut siding avoid closing the blades completely at the end of a stroke.
The key to installing vinyl siding is cutting it properly so it all fits tog.
Place the siding that has to be notched under the window.
To get the depth of the notch measure the distance from the locking tab on the siding below to the undersill trim.
B cut the siding to fit under windows.
Use tin snips to cut a length of j molding 2 inches longer than the width of the window.
Ensure that the flashing along the bottom of the window overlaps the nailing hem of.
Measure the height of the piece you need to cut by butting a scrap piece of siding beneath and above the window and marking the necessary height leaving an additional 1 4 inch 0 6 cm of clearance.
For more information refer to page 17 of the vsi vinyl siding installation manual.
With a utility knife or scoring tool score the vinyl face up with medium pressure and snap it in half.
When you mark each side add a inch to the width to allow for expansion.
This is a trick on how to cut vinyl siding the quickest and easiest way without breaking or chipping it.
Transfer this measurement onto the piece of siding.