Whats the best way to seal rough openings with house wrap?

Question

Lets say I've got a window hole in my frame and the wall is completely covered in Tyvek house wrap. What's the best way to cut it so I can seal all four sides as well as the corners of the opening? I googled it, and all I could find was something about cutting and "inverted Y." If anyone knows, or knows a website, pictures would be great or just a vivid description. This stuffs too expensive to mess up with. Thanks.

Answer 1

     just cut around oppening with a sharp utility knife staple or nail wher loose.install window or door and connect with nails or screws.google advised you to cut the oppening 4 inches smaller around oppening.then cut about a 45 degree line toward the middle.fold in and nail or staple to inside of stud.then install what ever.good luck.

Answer 2

Instruction manual:

http://www2.dupont.com/Tyvek_Constructio...