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Flashing must extend all the way from the wall to the outside. Oh yeah, and it has to be watertight and eight people have to work on it...

Wrapping an old house in a blanket of insulation is a no-brainer when you're replacing the roofing and siding anyway

A rip of plywood, some blocks and a table saw will help you repurpose cruddy lumber from the bone pile into backing

Two stud walls—and meticulous airsealing—make a super-efficient structure to hold your roof up

Drainage and airspace allows liquid water to drain out and air to circulate

Roof valleys are like gutters with a steep pitch, but the stakes are higher for valleys than they are for gutters

A dry and healthy crawlspace is sealed tightly against water and air leaks

Use real trim stock and give some thought to the layout—it will improve the look of your vinyl siding installation 100 percent

Peel and stick Z-flashing and some padding pushes a ledger flush with the face of the thick panels. A cover sheet of peel and stick completely waterproof the ledger before the deck is framed