2. Clean the mortar from the edges of the
3. Roughen the concrete underbed to provide a
good bond for the new setting cement.
4. Dampen the underbed and edges of the
surrounding tile and place the setting mortar mixed in
the proportion of 1 part portland cement to 3 parts sand.
5. Set the tile, tamping it to the level of the finished
6. Fill the joints with grout or pointing mortar,
matching the color and finish of the joints of the original
floor as closely as possible. If the mortar in the existing
joints has deteriorated, cracked, or crumbled,
thoroughly clean the joints of all loose mortar and
re-point them with grout or pointing mortar as follows:
Grout joints one-eighth inch or less in width with
neat portland cement grout of the consistency of thick
Point joints one-eighth inch to one-fourth inch in
width with pointing mortar, consisting of one-part
portland cement to one-part screened sand.
Point joints wider than one-fourth inch with
pointing mortar consisting of one-part portland cement
to two-parts screened sand.
7 . I n l o c a t i o n s , s u c h a s g a l l e y s a n d
food-preparation areas, where the floor is directly
exposed to the effects of corrosion agents, you should
use acid-resistant joint material to fill the joints. The
acid-resistant mortars are proprietary products and
should be mixed according to the manufacturers
Resilient Floor Coverings
Resilient floor coverings generally used include
linoleum, vinyl plastic tile, vinyl asbestos tile, and
asphalt tile. Linoleum should be inspected annually for
loose seams, buckling, serious indentation, and
damage from improper cleaning. Resilient tile should
be inspected annually for the following:
Missing, loose, or broken tiles
Damage from improper cleaning
LINOLEUM is repaired by laying out the area
along rectangular lines and laying an oversize section
of new linoleum over the damaged area. Cut through
the two layers simultaneously to ensure a tight fit.
Remove the damaged section and clean the exposed
underfloor of adhesive, dust, and dirt. Replace the
damaged felt lining. Apply a linoleum adhesive to the
exposed surface and fit the new linoleum in place. Roll
the area with a linoleum roller and place weights of
suitable size on the patch to assure proper adhesion.
RESILIENT TILE is repaired by removing the
damaged section and replacing it with new material.
Tile is more easily replaced than linoleum because of
its smaller size. After the damaged tile is removed,
scrape the exposed area level and clean off all mastic,
dust, and dirt. Replace the damaged felt lining. Install
the new tile in suitable cement or mastic according to
the manufacturers recommendations.
Stairways should be inspected at least quarterly
for adequacy of support and safe condition of
components. A good inspection of stairways includes
a check for the following conditions:
Cracked, weathered, or rotted wood framing.
Settled, cracked, or spalled concrete.
Rusted or loose metal supports.
Treads should be inspected for loose or broken
tread nosing; excessive wear; paint or tread covering
deterioration; and loose, eroded, or slippery tread
surfaces. Exterior treads should be sloped (or drilled) to
Handrails should be inspected for loose
fastenings and material deterioration.
Newel posts and balusters should be checked for
looseness and missing parts.
Maintenance on interior wood stairs usually
involves treads. Squeaks indicate loose treads that can
be corrected by driving finishing nails through the
treads into the riser or carriages or by removing the
molding under the tread overhang, driving wood
wedges between the tread and riser, renailing the tread
tightly, and replacing the molding. In open-string
stairs, a tread that is worn but not split or broken may
be removed and reversed. Split, broken, or otherwise
seriously damaged treads should be replaced with new
boards. Housed treads that cannot be removed maybe
repaired by leveling the worn surface with asphaltic
mastic or other suitable plastic materials and covering
the tread with a suitable floor covering. Plain and
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