babcockdavis BSTSB User manual

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©2021Babcock-Davis, Inc.
Rev 9/20 21
Single-Part Stair Treads + Nosings –Ribbed Bar
Models: BSTSB
GENERAL DESCRIPTION
Stair treads and nosings are designed for years of safe egress.
Proper installation is critical to the product performance.
Locally accepted installation practices and procedures should
be followed to ensure a safe stairway system that meets all
local code requirements, including Occupational Safety and
Health Administration (OSHA), Americans with Disabilities Act
(ADA), International Code Council (ICC) and International
Building Code ( I BC).
Introduction + Safety
Please read the complete instructions carefully before beginning any work. To ensure
proper installation and performance of the stair nosing, the following actions must be
completed by the installing contractor. Failure to do so will affect product warranty.
GENERAL SAFETY PRECAUTIONS Improper selection, installation, or use can cause personal injury or property damage. It
is solely the responsibility of the user, through its own analysis to select products suitable for their specific application
requirements, ensure they are properly maintained, and limit their use to its intended purpose. Follow proper local,
state, and federal regulations for proper installation and operation requirements.
Transportation + Storage
o Inspect all shipments and materials for missing or damaged components and hardware.
o Material must be stored in a clean, dry location.
Preparation
•Locate the packing slip(s) and/or shop drawings.
•Verify that all products listed on the packing slip are included in the package.
•Check the products for damage. If products are damaged, report a freight claim immediately
and leave the products in their packaging. If you sign for products without reporting damage
you waive your right to a freight claim and will be responsible for their replacement cost.
•Read the instructions thoroughly before beginning installation.
Installation, O p er a t i o n
+ Maintenance M a nu a l

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©2021Babcock-Davis, Inc.
Rev 9/20 21
Installation, Operation & M a i nte nanc e
Single-Part Stair Treads + Nosings –Ribbed Bar
Model: B S TSB
Tool List
•Tamping tool
•Screwdriver, Phillips
•Drill (for recessed nosing)
•Rabbit drill bit, 3/8” (for recessed nosing)
•Screws, #10 (for mechanically fastened nosings)
•Construction adhesive (for mechanically fastened nosings)
•Clean-up tools –see Maintenance section on Cleaning
INSTALLATION
Slip-resistant metal stair nosings are designed to be fully embedded in the
substrate ( m os t o fte n concrete) which provides total support for the nosing.
Any voids left between the underside of the metal stair nosing and the substrate
will allow flexing of the stair nosing itself. It is vital that the installer tamp down
the stair nosings to totally seat into the substrate and fully rest upon any riser
return, such as in pan-filled steps. This action will prevent the occurrence of
hollows and voids, which can lead to flexing and cantilevering of the nosing.
Cast-In (Steel Pan Stairs, Poured Concrete or Terrazzo):
1. Pour the concrete
2. Place the stair nosing into position in the concrete
3. Tamp the stair nosing to ensure proper concrete formation around the
anchors on the undersides
Mechanically Fastened (Poured Concrete)
1. Block out the concrete on the front edge of the stair to the exact height
and width of the nosing.
2. Pour the concrete.
3. After concrete is set remove block-out and place the stair nosing into
position.
4. Secure nosing with expansion screws.
Mechanically Fastened Surface Mount (Wood, Marble or Terrazzo Stairs)
1. Align nosing flush to end of wood tread.
2. Fasten with #10 wood screws in pre-drilled, countersunk holes.

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©2021Babcock-Davis, Inc.
Rev 9/20 21
Installation, Operation & M a i nte nanc e
Single-Part Stair Treads + Nosings –Ribbed Bar
Model: B S TSB
Recessed/Flush Mount
1. Mark and rabbit out 3/8-inch-deep channel for tread to sit into.
2. Fasten with #10 screws in pre-drilled, countersunk holes.
In lieu of fastening with screws
1. Apply a minimum 3/16-inch (5mm) bead of construction adhesive (by others) to the
underside of the nosing. Apply in a zig-zag pattern along the full width and length of the
nosing.
Stair Nosing GuardsTM
Protects stair nosings during installation and building construction from damage.
Guards are preinstalled at factory, with taped ends to prevent concrete overspray.
Field Installed Stair Nosing Guards
Guards to be installed on nosings (if not pre-installed) prior to pouring concrete.
1. Install over back edge of nosing first, then clip front end over the nose. See Figure 1.
2. Tape guard ends with painters’ tape to prevent concrete from seeping. See Figure 2.
Figure 1 Figure 2
Guard Removal - See Figure 3
Guards to be removed and recycled when construction is
complete.
1. Pry guard from bottom edge of nose with a flat
screwdriver or utility knife.
2. Bend back over 90° until guard snaps at relief just
below concrete surface.
Figure 3

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©2021Babcock-Davis, Inc.
Rev 9/20 21
Installation, Operation & M a i nte nanc e
Single-Part Stair Treads + Nosings –Ribbed Bar
Model: B S TSB
OPERATION
Photoluminescent Option
Exposure Requirements:
1. The minimum amount of exposure to direct sunlight is 60 minutes
2. The minimum amount of exposure to artificial ambient illumination is 60 minutes from
the following:
o Fluorescent straight tube T8 or T12, 4000 –4500 K color temperature
o Incandescent soft white 2700 –3000 K color temperature
o LED 2700 –3000 K color temperature
3. The control of the ambient illumination necessary to charge the luminous egress
path marking system should be restricted to authorized personnel only.
4. Failure to supply the above minimum exposure can prevent the luminous egress
path marking from performing as intended.
5. No specific building surface treatment is required for the luminous egress path
marking system to function properly.
MAINTENANCE
Keep stair treads and nosings free of debris and dirt by sweeping or vacuuming regularly. Heavy-duty
commercial cleaners will not harm nosings but are generally not necessary. If nosings are damaged,
please contact the factory for a repair kit or replacement nosings.
Cleaning
•Treads should be swept with a broom or vacuumed with a heavy-duty commercial vacuum cleaner at
least once a week.
•When needed, scrub surface vigorously with a stiff bristled brush using a mild detergent. Do not use
any product containing solvents, such as Acetone. It will break down the abrasive adhesive.We
suggest using Murphy’s Oil Soap® or Simple Green®. Rinse thoroughly with water after cleaning.
•Scuff marks on the aluminum nose can be removed by rubbing with a fine steel wool and a
commercial cleaning agent.
•To remove snow and ice, use deicing compounds such as calcium chloride or sodium chloride.
•DO NOT CLEAN ABRASIVE GRIT with PRESSURE WASHER
•EcoTreadTM can be pressure washed: Recommended max. pressure: 3200 psi, 2.5 gpm flow.
QUESTIONS?
For more information on installation, repair, or replacementplease call 1-800-547-2635
or visit www.babcockdavis.com.