of a true matching color or of the color or pattern
A good checklist for inspecting the workmanship of
tile should include the following:
Ensure the mortar scratch coat is applied and
allowed to dry, as specified, and that it is ready
in all respects to receive the tile.
Ensure that the mortar bed for tile is applied in
the required thickness and made true.
Ensure that the tile is applied and tapped to true,
plumb alignment with all joints straight, plumb,
or level and of uniform thickness.
Ensure that the color schemes and patterns are
faithfully followed and correctly arranged and
cut around fixtures.
Ensure that wainscoting is extended to the
Ensure that bases align correctly with the
finished floor and that joints are filled with
plaster of paris, cement, or other mortar as
Ensure that all tile walls are cleaned thoroughly
without scratching the glazed surface.
Exterior finish includes all the exterior materials of
a structure, such as walls, roofs, decks, patios, and so
on. In this section we will concern ourselves with stucco
and built-up roofs, which are common trades that the
STUCCO. Stucco usually is specified as
composed of portland cement, hydrated lime, sand, and
water and may have integral waterproofing or coloring
pigment added. Painted or galvanized metal lath,
expanded metal, or wire mesh is used for the support of
stucco, except on masonry walls, and requires nails,
staples, and wire for fastenings. The inspector must
make certain that all material conforms to the
requirements of the project specifications and the
referenced standard specifications.
Stucco may be applied on masonry, concrete, or
wood-frame walls. As the inspector, make sure that the
masonry has an unglazed rough surface with joints
struck flush and adequate key to assure a good bond.
Concrete is often given a dash coat of neat cement and
sand before the stucco is applied. If the base is
wood-frame walls, the inspector must determine
whether the lath or wire is securely fastened to the
framing and tied together to form a taut, strong support
to the stucco. Specifications usually will require
application in a three-coat system as follows: scratch,
brown, and color coat.
The inspector must make sure that all masonry
joints are filled, struck smooth, and allowed to set before
applying the scratch coat. You should then make certain
that the scratch coat is pressed thoroughly into the joints
for the masonry or into the openings of metal or wire
lath to assure adequate key and bond. You must
determine that this coat is applied carefully to level and
plumb irregularities, that it is scored or combed tier
completion to provide good bond, and that it is permitted
to dry for the specified period.
The brown coat is usually of the same composition
as the scratch coat. The inspector must make sure that
the scratch coat is wetted immediately before the brown
coat is started; that the brown coat is applied, rodded,
and floated to bring all surfaces to true, flat, plumb
planes; that the surface is combed by fine
cross-hatching to provide a bond for the finish coat; and
that the coat is permitted to dry for the prescribed
The color coat, also called the finish coat, is a
relatively thin coat of special composition to provide the
finished surface with texture and color. It is your
responsibility to make sure that this coat conforms to the
specifications in composition, including colored
aggregate, pigment, and integral waterproofing, if
prescribed; that it is carefully applied to assure true,
plane or curved surfaces and sharp edges; and that on
completion it is protected from excessive heat and kept
moistened for the specified period to preclude hairline
cracks, fading, and checking.
The inspector must also make sure that all surfaces
are true; that the surface texture conforms to the finish
specified and to the approved sample, if any; and that
the color is of a permanent type, and matches, after the
stucco is dry, the color specified or indicated by a
previously approved sample.
BUILT-UP ROOFING. A number of different
types of roofing are used on structures. One of the main
types found on Navy-built structures is BUILT-UP
ROOFING. The following information deals with this
type of roofing.
Built-up roofing, as the name implies, is a
membrane built up on the job from alternate layers of
bitumen-saturated felt and bitumen. Because each roof