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Historic Preservation - Technical Procedures

Spectitle:

Replacing A Cork Tile Floor

Procedure code:

0966001R

Source:

Hsr - Federal Bldg/P.O., Wash, Dc - Bldg Conservation Tech

Division:

Finishes

Section:

Resilient Tile Flooring

Last Modified:

02/24/2012

Details:

Replacing A Cork Tile Floor



REPLACING A CORK TILE FLOOR


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes instructions for the remov= al of
         glue-down carpeting or synthetic flooring and the
         installation of a cork tile floor.

    B.   See 01100-07-S for general project guidelines to be
         reviewed along with this procedure.  These guidelines
         cover the following sections:

         1.   Safety Precautions

         2.   Historic Structures Precaution= s

         3.   Submittals

         4.   Quality Assurance

         5.   Delivery, Storage and Handling=

         6.   Project/Site Conditions

         7.   Sequencing and Scheduling

         8.   General Protection (Surface and Surrounding)

         These guidelines should be reviewed prior to performing
         this procedure and should be followed, when applicable,
         along with recommendations from the Regional Historic
         Preservation Officer (RHPO).

1.02 SUBMITTALS

    A.   Samples:  Submit samples of each type of proposed
         replacement tile to the Contracting Officer for approval
         of size, color, finish and texture.

1.03 PROJECT/SITE CONDITIONS

    A.   Environmental Requirements:  Prior to install= ation, the
         new tile should be removed from boxes and allowed to
         stand at room temperature for at least 72 hours.  The
         temperature should be between 60=F8F and 85=F8F, with a
         relative humidity between 50% and 70%.  Temperature
         should be maintained for at least 48 hours after
         installation.

1.04 MAINTENANCE

    A.   Vacuum daily to remove any loose dirt and grit.  Floor
         may be cleaned daily with a dry, treated dust mop or damp
         mopped using a mild, non-ammoniated detergent.  Avoid
         abrasive and alkaline cleansers.  DO NOT FLOOD FLOOR WITH
         WATER.  As necessary, use a liquid solvent wax.


PART 2---PRODUCTS

2.01 MANUFACTURERS

    A.   Dodge-Regupol, Inc.
         P.O. Box 989
         715 Fountain Avenue
         Lancaster  PA  17603
         717/295-3400 or 800/322-1923

    B.   Ipocork
         1280 Roberts Boulevard - Suite 403
         Kennesaw  GA  30144
         800/828-2675

2.01 MATERIALS

    A.   Natural cork tiles:  

         1.   For new floors, finish may be natural, waxed, or
              finished with a synthetic coating such as
              polyurethane or given a factory finish.  

         2.   New tiles may be "through= -chip", with granules of
              the same size throughout the depth of the tile, or
              have a decorative cork veneer with a granular cork
              core.  

         3.   For replacement tiles, new tile shall match
              existing tiles in size, color, finish and texture.

    B.   Adhesive:  Adhesive as specified by tile manufacturer.


PART 3---EXECUTION

3.01 ERECTION, INSTALLATION, APPLICATION

    A.   Remove all existing flooring and underlayment.

         1.   Scrape off all adhesive materi= al to provide a dry,
              clean and smooth surface.  

         2.   To remove old glue and backing, carefully score
              residue with knife.  = ;

         3.   Sponge (or mop--large areas only) solution of
              commercial wallpaper remover onto surface and allow
              to soak into adhesive until residue has softened
              and can be removed with a putty knife.  If adhesive
              is water soluble, a wallp= aper steamer may be used
              to soften the adhesive.
    B.   Before installation, clean subfloor of all paint,<= br>          varnish, dirt, grease, oil, etc.  L= evel surfaces to
         within 1/8" in 10'-0".  <= br>
         1.   For wood subfloor:  

              a.   Remove any paint or varnish with a chemical
                   paint remover.  

              b.   Fill cracks and holes with plastic wood and
                   sand uneven edges.  

              c.   Seams and nail holes may also be filled with
                   latex underlayment and the surface sanded
                   after the underlayment has cured.  

              d.   Re-nail loose boards.  Give surface a final
                   sandi= ng to smooth out any rough areas.

         2.   For concrete subfloor:  P= atch any holes or
              depressions with a Portla= nd cement-based patching
              compound mixed with a latex mixing liquid.

    C.   Install new tiles in accordance with the manufactu= rer's
         latest printed instructions.  

         1.   Mix flooring materials from various cartons to
              diminish noticeable color and pattern variation and
              to obtain uniform appeara= nce.

         2.   Lay flooring beginning at center of room, working
              towards perimeter.  = Cut border tiles to fit within
              1/32" of abutting surfaces to allow for natural
              expansion and contraction of tiles due to normal
              changes in humidity.  

         3.   Fit flooring material into breaks and recesses,
              against bases, around pipes and penetrations, under
              saddles or thresholds and around permanent cabinets
              and equipment.

         4.   Apply adhesive with 1/16" by 1/16" by 1/16" notched
              trowel to only that area which can be covered by
              flooring material within the recommended working
              time of the adhesive.  Remove any adhesive which
              dries or films over.  

         5.   Press flooring in place by hand, achieving bond
              with substrate.  Cut tiles as required to fit
              irregular spaces.  A= fter all the flooring is in
              place, roll, in both directions, with a 100-lb
              roller.  Roll carefu= lly so that floor does not
              shift out of position.

         6.   Re-roll within one hour after installation.  All
              joints, edges and corners shall be level and flush.

         7.   Clean adhesive off of face of tiles as work
              progresses.  Dry adhesive can be removed with a
              soft rag or cotton and mineral spirits.

         8.   Keep all traffic off of newly installed floor for
              48 hours to allow adhesive to cure.

3.02 ADJUSTING/CLEANING

    A.   After adhesive has cured, damp mop floor with mild, non-
         ammoniated detergent and clean, warm water, and rinse
         with new clean, warm water.  DAMP MOP ONLY, DO NOT WET
         MOP OR DELAMINATION WILL RESULT.

    B.   Do not scrub or clean thoroughly until 4-5 days after
         installation to allow adhesive to set properly.

    C.   If floor is to be waxed or given a polyurethane finish,
         do so after the five days are up.  = Follow manufacturer's
         instructions.

    D.   Instruct maintenance personnel in maintenance procedures.
         Furnish names of products used and sourc= es.

                             END OF SECTION