The façade is the front or primary elevation of a house, and usually contains the main entrance.
Flashing is made of sheet metal or another impervious material. Its purpose is to prevent water from penetrating a building at a joint or angle, generally on the roof. The most common locations for roof flashing are at valleys (where two downward sloping roof planes meet), chimneys, eaves, rakes, ridges, roof-to-wall intersections, and at roof penetrations such as skylights, stovepipes and vents. Flashing must be durable and rust-resistant. Traditionally, materials such as copper, leaded-coated copper or lead are used for flashing.
An American Foursquare is a building type which was popular from the mid-1890s through the 1930s. Its boxy, yet roomy design was well suited to small city lots. Typical features include: a simple boxy shape of two and a half stories, simple four-room plans, low-hipped roofs with deep overhangs, large central dormers, and full-width porches with wide steps along the front elevation. Foursquare homes were dressed up with features of various architectural styles, including; Queen Anne (bay windows or gingerbread trim), Mission (stucco siding and roof parapets), Colonial Revival (pediments or porticos) or Craftsman (exposed rafter tails, sloping/battered porch columns, and interior carpentry details such as built-ins and boxed beams.
A French drain is a shallow linear trench, following the perimeter of the building four to six feet away from the foundation, lined with gravel and occasionally with a perforated plastic pipe that collects and directs water away from the house.