Burke Flooring Rubber Tile and Stair Tread Installation - Manual (Page 8)

Page 8
Burke Flooring Products, a Division of Burke Industries
2250 South Tenth Street, San Jose CA 95112
(408) 297-3500
9. No pedestrian foot traffic should be allowed before at least 12 hours
after laying and for a longer period if the sub-floor temperature is below 72ºF
(24ºC). These cure times can be doubled or tripled as the temperature
approaches 59ºF (14ºC) (see adhesive cure chart on previous page).
Scaffolding or wheeled conveyances must not be allowed for at least 4 days
(see adhesive cure chart). Construction foot traffic is possible if one-inch
plywood is laid over the entire installation after the second rolling and after 8
hours. Traffic directly on the tile weakens or breaks the adhesive bond and
will cause tiles to buckle or lift within one year of installation if traffic is
allowed too soon.
V. Installation of Rubber Stair Treads
Note: Burke highly recommends the use of Wheaton Jigs' Stair Wizard for the
measurement and cutting of Endura stair treads. It provides significant time
savings and improvements in cutting accuracy. For more information, call 707-
829-1180.
Important:
Burke does not recommend the installation of a stair tread on the top step (on the
landing). Pattern registration between the tile and tread is difficult. Thickness
differences between the tile and tread also makes the installation difficult. Burke
recommends using Stair Nosing for the top step and covering the rest of the landing
with Rubber Floor Tile.
A. ALL STEPS [Concrete, plywood, metal, other hard solid surfaces] - Must be dry,
clean and free of dust, plaster, paints, oil, greases, old coverings, adhesives and
any other foreign matter. Wooden steps must be firmly nailed and sanded flat.
Cement stairs should be leveled and all irregularities in the steps must be repaired
with a cementituous leveling compound with a minimum compressive strength of
4000 PSI, such as Ardex or Mapei, or an epoxy patch. Repair worn or uneven
edges. Sand painted stair pan noses down to the metal for best adhesion results.
B. Dry Fitting
All treads and risers must be pre-fitted prior to installation. [Use the “Wheaton” jig
to gauge stair tread dimensions and transfer them to Endura’s stair tread for an
accurate cut.] Stair treads are stocked in 48" and 72" lengths and are available by
special order in 6" increments from 42" to 72". It will be necessary to cut them and
dry fit. The rear edge should be cut with a slight undercut or bevel. Make sure the
tread nosing now dry fits tightly against the step nose and riser. The sides of the
tread should be trimmed, leaving a slight gap of 1/16" on either side allowing for
expansion. Undercutting these side cuts helps lay the treads in more smoothly.