2. Clean the mortar from the edges of the surrounding tile.
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 floor.
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 cream.
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. In locations, such as galleys and 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 manufacturer's recommendations.
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 manufacturer's 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 drain properly.
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 andContinue Reading