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Tape layers should overlap shingle-style up the roof
Snap a line and stick to it
Left-, right-, and straight-cutting snips with single- and compound-leverage each have their place on a jobsite
The first layer of foam is mostly an insulation layer; the outer layer is the air barrier and drainage plane. This video is about the first layer.
Paint-on waterproofing membrane, physics, and forethought protect an old window—and allow future maintenance—while sealing a big hole in a wet and windy wall
Putting a window in the hole means sealing around the edges, too
Raised heel trusses and a sealed roof deck make a fast energy efficient roof system
Cold tape doesn't stick and hot tape stick like sh—well, you know what it sticks like.