Figure 4-15.-Downspout installation: A. Downspout with
splash block; B. Drain to storm sewer.
(fig. 4-15, view A), which carries the water away from
the foundation. The minimum length of a splash block
should be 3 feet. In some areas, the downspout drains
directly into a tile line, which carries the water to a storm
sewer (view B).
EXTERIOR DOORS
LEARNING OBJECTIVE: Upon completing
this section, you should be able to identify the
types of exterior doors and describe basic
exterior doorjamb installation procedures.
Many types of exterior doors are available to
provide access, protection, safety, and privacy. Wood,
metal, plastic, glass, or a combination of these materials
are used in the manufacture of doors. The selection of
door type and material depends on the degree of
protection or privacy desired, architectural com-
patibility, psychological effect, fire resistance, and cost.
DOOR TYPES
Better quality exterior doors are of solid-core
construction. The core is usually fiberglass, or the door
Figure 4-16.-Parts of a Six-panel door.
is metal-faced with an insulated foam core. Solid-core
doors are used as exterior doors because of the heavy
service and the additional fireproofing. Hollow-core
doors are normally used for interior applications. Wood
doors are classified by design and method of
construction as panel or flush doors.
Panel Doors
A panel door, or stile-and-rail door, consists of
vertical members called stiles and horizontal members
called rails. The stiles and rails enclose panels of solid
wood, plywood, louvers, or glass (fig. 4-16). The stiles
extend the full height at each side of the door. The
vertical member at the hinged side of the door is called
the hinge, or hanging, stile, and the one to which the
latch, lock, or push is attached is called the closing, or
lock, stile. Three rails run across the full width of the
door between the stiles: the top rail, the intermediate or
lock rail, and the bottom rail. Additional vertical or
horizontal members, called muntins, may divide the
door into any number of panels. The rails, stiles, and
muntins maybe assembled with either glued dowels or
mortise-and-tenon joints.
Sash Doors
are
Panel doors in which one or more panels are glass
classed as sash (glazed) doors. Fully glazed panel
4-12
