1 Truncated Dome Mats are the easy, economical and durable

Read instructions before
beginning installation.
Call your local distributor
or 866-999-7452 if you
have any questions.
Truncated Dome Mats are the easy, economical and durable solution for meeting ADA,
FHWA and other regulations which require a tactile warning surface for visually impaired
pedestrians. Detectable Warning Systems, Inc. has been a pioneer in the field of providing
economical retrofit products. Since 1994 our products have been in use providing the warning
and directional assistance needed by visually impaired persons at a reasonable cost to cities,
counties, transit authorities and other agencies.
Construction - molded from polyurethane, the Detectable Warning Mats are ideal for curb
ramps, hazardous vehicular areas and transit platforms.
Pattern - Available in the “in-line” or square pattern as recommended in the PROWAAC Final
Report as well as the original offset pattern required by ADAAG. The 2.35” spacing of the
domes in a square pattern allows for improved access for wheelchair users.
Color - Now available in three colors to meet a variety of situations and preferences: YellowFederal Standard 595B #33538, Black and Brick Red. UV inhibitors included in the process
provide protection from fading and discoloration.
Installation - Ideal for new and retrofit applications, these mats can be easily and permanently
applied to a variety of surfaces. Their flexible construction allows them to conform to existing
curb ramp contours and to adapt to the normal variations on concrete sidewalks. They can be
easily cut on the job site to adapt to many special situations. The rugged two-part adhesive
system provides permanent placement which can withstand both freezing cold and blistering
heat.
Readily available - Our nationwide network of distributors stock the complete line of Detectable
Warning Mats and adhesives for immediate delivery to your job site and are knowledgeable
about local regulations and requirements for detectable warning products.
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Read instructions before
beginning installation.
Installation Instructions
Detectable Warning Mats
Call your local distributor
or 866-999-7452 if you
have any questions.
Rev. 3-11-04
Security Measures
Using barricades, cones or other means, block off work area to
pedestrian and vehicle traffic during installation process. Have work
crew be prepared to offer alternate accessible pathway to disabled
pedestrians during time work is being performed and adhesive is
curing.
General Conditions
Air temperature 60 degrees F and rising
Surface temperature 60 degrees and rising
Surface must be completely dry with no precipitation during the 24 hours prior to installation.
Surface must be clean and free of all foreign or contaminating agents such as foreign oils, grease,
silt, loose aggregate, sand particles, curing compounds, sealants and other forms of dirt and soil.
Be certain that automatic sprinklers or other sources of water will not be turned on during the
installation and curing process.
Materials Required
Grinder or wire brush
Sharp utility knife
3/32” notched trowel
Hammer
Eye protection
2” wide duct tape
Steel straight edge 48”
Disposable pail
Acetone
Blower (optional)
Stir stick
Drill with ¼” masonry bit
Pressurized air canister
Latex gloves
Broom
Universal Application Rules
All new concrete must have a full 21-day cure
Always use butt joints when placing sections end to end. Never overlap mats onto each other.
Do not apply on deteriorating surfaces or marked surfaces.
During winter, early spring and late fall in some areas the weather conditions may not be
appropriate for the installation of detectable warning mats.
Portland Cement Applications
Assure all general conditions are favorable. Clean surface as outlined
above. All curing compounds must be removed with sandblasting,
grinding, wire brushing or other acceptable methods that assure
complete curing compound removal. Follow by blowing surface with
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high-pressure air or thorough sweeping. All contaminating and foreign materials must be
removed. Patch any holes or cracks larger than 1/8”.
Mat Placement
Place the mats in the desired location. If mats need to be cut or shaped,
make necessary cuts with a saw or knife and fit each mat into place.
Once all mats are in position, apply a 2” wide strip of duct tape around
the entire outer perimeter. Leave a 1/8” space between the tape and the
edge of the mats. Be very careful that tape does not overlap onto the
mats, as this will leave an area without glue when the mats are installed.
Remove mats and set-aside during adhesive application.
Adhesive Application
DWS 1017 One-Part Apply adhesive to the entire area inside the taped
perimeter using a 3/32” notched trowel (approx. 10 mil thickness).
Be certain that the area has 100% coverage and that all edges and
corners have adequate coverage of the ground adhesive. The adhesive
sets in about 2 hours (see directions on container) do not allow adhesive
to dry. Each gallon of adhesive should cover approximately 50-60square feet.
Scotchweld 3549 Two-Part. Mix equal amounts of Part A and Part B of the ground adhesive in
an oversize container. Mix thoroughly following the manufacturers directions on the containers.
Follow directions as above. Adhesive sets in about 30 minutes. Each quart set should cover 2530 square feet. Use of too much adhesive may cause bubbles and extend curing times.
Mat Installation
Place mats one at a time in their pre-laid positions. Take care to
position them tight against each other and use the tape edge as your
guide. Press firmly from the center to the outer edges to remove any air
bubbles that may have formed. Press on the areas between the domes in
order to remove all air that may have accumulated under the mats.
When joining mats together, spot tack the edges together as tightly as
possible using drops of seam sealer, or use duct tape to temporarily hold the seams together.
When mats are in position, carefully remove the tape from the perimeter. Press down the edges
and corners of each mat firmly.
Once mats are in place, cover with ¼” plywood or similar material and weight with several sand
bags weighing approximately 25# each. Allow weight to remain for several hours to insure
compete bonding of the adhesive.
Edge & Seam Sealer
Apply a small bead of Edge & Seam Adhesive along all joint seams.
Apply a small bead along all outer edges (Do not allow adhesive to get
on your hands, as it is quick acting and will glue your fingers together).
See Manufactures information on the bottle.
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Anchor Installation
After the mats have been completely installed and the ground adhesive has
set, nylon anchors can be installed. Using a 1/4” masonry bit, drill holes
through the mats and at least 1” into the concrete. Place 1/4” x 1” nylon
anchors in the holes and tap them in with a hammer. Do not place anchors in
the domes. See layout below for recommended anchor placement. Place one
anchor at each location indicated by the dark spot.
Notice: Use only adhesive, edge seal, seam seal and anchors provided with your DWS
Detectable Warning Mats. It is not recommended to install mats on asphalt or uncured concrete.
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Read instructions before
beginning installation.
Detectable Warning Systems, Inc.
Call your local distributor
or 866-999-7452 if you
have any questions.
SURFACE APPLIED DETECTABLE WARNING MATS
PART 1 GENERAL
1.01
1.02
SECTION CONTENTS
A.
Description
B.
Related Work Specified Elsewhere.
C.
Submittals
D.
Quality Assurance.
E.
Delivery, Storage & Handling
F.
Site Conditions
G.
Extra Stock
H.
Guarantee
I.
Manufacturers
J.
Materials.
K.
Installation.
L.
Cleaning & Protecting
DESCRIPTION
A. This Section specifies furnishing and installing surface applied polyurethane
detectable warning mat where indicated, using an exterior grade tactile warning
surface described herein.
1.03
RELATED WORK SPECIFIED ELSEWHERE
A. Drawings and general provisions of Contract, including General and Special
Conditions and Division 1 Specifications Section, apply to this Section.
1.04
SUBMITTALS
A. Product Data: Submit manufacturer’s literature describing products, installation
procedures and routine maintenance.
B. Samples for Verification Purposes: Submit three (3) samples of surface applied
polyurethane tactile mat of the kind proposed for use.
C. Shop drawings are required for products specified showing fabrication details; tile
surface profile; adhesives; plans of mat placement including joints, and material to be
used as well as outlining installation materials and procedure.
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D. Material Test Reports: Submit test reports from qualified independent testing laboratory
indicating that materials proposed for use are in compliance with requirements and meet
the properties indicated.
A. Maintenance Instructions: Submit copies of manufacturer’s specified maintenance
practices for each type of tactile tile and accessory as required.
1.05
QUALITY ASSURANCE
A. Provide surface applied tactile mat and accessories as produced by a single manufacturer.
B. Installer’s Qualifications: Engage an experienced Installer qualified for installation, who
has successfully completed tile installations similar in material, design, and extent to that
indicated for Project. .
C. Americans with Disabilities Act (ADA): Provide tactile warning surfaces which comply
with the detectable warnings on walking surfaces section of the Americans with
Disabilities Act (Title 49 CFR TRANSPORTATION, Part 37.9 STANDARDS FOR
ACCESSIBLE TRANSPORTATION FACILITIES, Appendix A, Section 4.29.2
DETECTABLE WARNINGS ON WALKING SURFACES. In addition products must
comply with CALIFORNIA TITLE 24 requirements regarding patterns, color and sound
on cane contact.
D. Polyurethane tactile mat incorporating truncated domes shall conform to the following:
1. Water Absorption of mat when tested by ASTM-D570 not to exceed 0.36% -after
vacuum.
2. Slip Resistance of mat when tested by ASTM-C1028 the combined wet/dry static
co-efficient of friction not to be less than 0.90.
3. Tensile Strength of mat when tested by ASTM-D412 not to be less than 1,100 psi.
4. Tear Strength of Tile when tested by ASTM-D624-00e1 not to be less than 200
psi.
5. Chemical Resistance of mat when tested by ASTM-D1308-87 (1998): No change
6.
Smoke Density of mat when tested to ASTM- E662: 245 (@ 4 minutes)
7. Flammability of mat when tested to ASTM- E648: 1.12 watts/ cm. sq
8. . QUV Exposure results when mat tested with “B” Bulbs for 200 hrs.: No
change
9. Freeze-Thaw Cycling when tested to ASTM- C1026-87: Unaffected.
10.
Hardness of mat when tested to ASTM-D2240: 90 (Shore A).
11. Specific Gravity of mat when tested to ASTM-D792: 1.22
12.. Weight loss of mat when tested to ASTM- D1044 (Taber Abrasion H-22
Wheel,
1000gms/1000 cycles) 150 mgs.
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1.06
DELIVERY, STORAGE AND HANDLING
A. Mat and adhesive materials shall be suitably packaged or crated to prevent damage in
shipment or handling. Finished surfaces shall be protected by sturdy wrappings, and shall
be identified by model designation or number. Mats shall be kept dry and away from
sources of heat. Store on flat level surface.
B. Mat and adhesives shall be delivered to location at building site for storage prior to
installation.
1.07
SITE CONDITIONS
A. Environmental Conditions and Protection: Maintain minimum air and surface
temperature of 60 degrees F and rising in spaces to receive tactile tiles prior to
installations, during installation, and for not less than 2 hours after installation. Store
materials in spaces where they will maintain minimum temperature of 60 degrees F for at
least 24 hours prior to installation.
B. Provide barricades or screens to protect passengers or public.
1.08
EXTRA STOCK
A. Deliver extra stock to the Owner. Furnish new materials from same manufactured lot
as materials installed and enclose in protective packaging with appropriate
identification. Furnish not less than two or (10)% of the supplied materials for each
type, color and pattern installed.
1.09
Warranty
A. Surface applied detectable warning mat shall be warranted in writing for a period of
five years from date of final completion.
Part 2 PRODUCTS
2.01
MAT MANUFACTURER
A. Available Manufacturers: Subject to compliance with requirements, manufacturers
offering products that may be incorporated in the Work include, but are not limited to, the
following:
B. The polyurethane detectable warning mat specified is based on the Detectable Warning
Mat manufactured Detectable Warning Systems, Inc. (866-999-7452). Existing
engineered ADA and California Title 24 field tested products in service for a minimum of
2 years which are subject to compliance with requirements, may be incorporated in the
work and shall meet or exceed the specified test criteria and characteristics.
1. Color: Yellow conforming to Federal Color No. 33538. Color shall be homogenous
throughout the mat.
2.02
INSTALLATION MATERIALS
A. DWS # 3549, heavy-duty elastomeric two-part polyurethane ground adhesive.
B. DWS # ES10, cyanoacrylate edge sealer.
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C. DWS # SS10, cyanoacrylate seam sealer.
D. DWS #NA25100Y, low profile nylon expansion anchors ¼ inch diameter by 1-inch long
to be positioned in the molded recess area at the rate of 6 anchors for each 2’ x 4’ mat
and 8 anchors for each 3’ x 4’ mat.
PART 3 EXECUTION
3.01
INSTALLATION
A. During all surface preparation and mat installation procedures ensure adequate safety
guidelines are in place and that they are in accordance with the applicable industry
and government standards.
B. The application of all adhesives, sealants and mechanical fasteners shall be in strict
accordance with the guidelines set by their respective manufacturers.
C. Throughout the installation phases of surface preparation and mat setting, ensure that
care is taken to prevent damage to any work.
D. Immediately prior to installing the surface applied tactile tiles, all surfaces must be
inspected to ensure that they are clean, dry, free of voids, curing compounds,
projections, loose material, dust, oils, grease, sealers and determined to be structurally
sound before the application of the setting adhesive. All new substrate concrete
paving must have been cured for at least 21 days prior. If present, all concrete curing
compounds shall be removed with sandblasting and cracks or holes larger than 1/8”
shall be patched. The setting adhesive requires that the substrate and the ambient
temperature are 60 degree F minimum and rising, and completely dry with no
precipitation during 24 hours prior to installation. Assure that sprinklers or other
water sources will not be turned on during the installation and adhesive curing
process.
E. Cut and pre-position the mats as shown on the drawings. Inspect the mats and clean
all dust and other contaminants from the surfaces to be adhered. Install duct tape to
mask the substrate concrete paving, 1/8” beyond the edge of the pre-positioned mats.
Set the mats in place one at a time, true and square, following the manufacturers
written instructions.
F. Mix the ground adhesive according to the manufacturer’s written instructions. Spread
the adhesive to provide complete 100% coverage over the concrete substrate surface,
using a clean, well-maintained 3/32-inch V notch trowel. Place mats tight against
each other in their pre-laid positions. Press firmly from the center out to remove all
air bubbles. When butting mats together, use duct tape to temporarily hold the seams
tight. After the mats are in installed, remove the perimeter tape from the concrete
substrate and firmly press down the corners of each mat. Then cover the mats with
plywood weighted down with several 25# sand bags. Keep weighted plywood in
place for several hours to insure complete bonding of the adhesive.
G. After the mats have been installed and the ground adhesive has set, nylon anchors
shall be installed. Drill holes true and straight to the depth required using the
recommended bit with holes located by the molded recesses area in the mats. Clean
dust from the holes to provide clear passage for the anchor. Mechanically fasten tiles
to the floor surface using a hammer to set the impact anchors provided. Ensure the
fastener has been set to full depth, straight and true. Care should be taken when
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setting the fastener to avoid any inadvertent blows with the hammer to the tile
surface.
H. Apply a small bead of Seam Seal Adhesive along all joint seams, avoiding contact
with skin.
I. Apply a small bead of Edge Sealer along all outer edges of mats, avoiding contact
with skin
J. After the mats have been fully installed, and sealer has cured, the surface shall be
cleaned, following the recommended maintenance and cleaning procedures.
3.02
CLEANING AND PROTECTING
A. Protect mats against damage during construction period to comply with
manufacturer’s specification.
B. Protect mats against damage from rolling loads following installation by covering
with plywood.
C. Clean mats by method specified by the manufacturer.
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