FREQUENTLY ASKED QUESTIONS
Detectable warning tiles and requirements
Does ADA Solutions meet ADA, ADAAG, and PROWAG requirements?
Yes. Since the mid 1980’s ADA Solutions has been manufacturing the highest-quality detectable warning products in the world. All of ADA Solution’s products adhere to ADAAG and PROWAG requirements.
What size detectable warnings are required by the Americans with Disabilities Act Accessibility Guidelines (ADAAG)?
The current guideline requires the detectable warning surface to begin 6” to 8” from the back of the curb extending 24” or 2 feet in the direction of travel. To learn more about the various regulations related to detectable warning surfaces please visit our Government Regulations Page, or call us anytime at (800) 372-0519.
What are detectable warning tiles made of?
ADA Solution’s uses the most advanced homogenous glass and carbon reinforced composite to create a colorfast and U.V. stable product. Each truncated dome is fiberglass reinforced for enhanced durability. The color is uniform throughout, and does not rely on a surface coating (paint) to achieve color stability.
What is a detectable warning surface?
A detectable warning surface features a pattern of domes that alerts a person with visual impairments or other disabilities to oncoming traffic or other hazards. It can be felt by foot or when using a cane, wheelchair, or scooter, and it indicates flush boundaries at curb ramps, between pedestrian and vehicular routes, and unprotected drop-off areas at public transportation stations and stops. Detectable warnings are required by the Americans with Disabilities Act (ADA).
What is a truncated dome?
A truncated dome is a type of detectable warning designed to help an individual with a visual impairment tell where there’s a boundary between a sidewalk and street. Truncated domes can be used near curbs and where curbs have been eliminated. They create a distinct pattern of raised elements that can be detected by foot or with a cane. ADA Solutions has been manufacturing detectable warning products with truncated domes since the mid-1980s.
Should reinforcing bar be installed through the holes in the sides of the cast-in-place product?
No. The larger holes in the sides of the embedment flanges of the cast-in-place product are designed to let concrete flow through to securely anchor the product in the fresh concrete.
What is needed to install the surface mounted detectable warning tiles?
Fasteners and adhesive are included with each tile. Purchase a quality sealant (Sonneborn NP1 or equivalent) to seal the entire perimeter of installed tactile to finish the installation.
Where can I find installation instructions?
ADA Solution’s brochure contains detailed installation instructions for all of our detectable warning systems. Ask your local distributor or call (800) 372-0519 to request a brochure.
The following detailed instructions are also available for download:
What are the dome spacing dimensions of ADA Solution’s detectable warnings?
ADA Solutions is the only detectable warning manufacturer to offer both 1.67” and 2.35” center to center spacing. Please call (800) 372-0519 to discuss available sizes, colors and dome spacing.
What is the height of the truncated dome in ADA Solution’s detectable warning products?
ADA Solution’s manufactures all of our truncated domes to measure .20”
What colors are immediately available from ADA Solutions?
ADA Solutions prides itself on maintaining the highest levels of inventory in the (6) most popular colors used nationwide: Yellow, Clay-Red, Brick-Red, Black, Gray and Blue should be available for immediate shipping.
Please call (800)372-0519 with any questions.
Are custom colors available?
Yes. ADA Solutions manufactures custom colors. Please call us at (800)372-0519 to discuss your custom color needs.
Does temperature affect ADA Solution’s products?
No. ADA Solution’s uses the most advanced composite materials that are not affected by extreme low or high temperatures.
For additional information refer to our Product Test Data
Will salt from snow removal affect ADA Solution’s detectable warning tiles?
No. Lab testing shows that salt will not affect the composite material used to manufacture ADA Solution’s detectable warning tiles. In fact, chewing gum and even spray paint can be removed without staining ADA Solution’s detectable warning tiles.
Can ADA Solution’s surface mounted tile be mounted on asphalt?
No. Due to the instability of the asphalt surface we do not recommend it for the application of surface mounted detectable warning tiles. For a long term solution, we recommend pouring a concrete footer and installing ADA Solution’s cast-in-place or replaceable cast-in-place system.
What does “sound on cane “mean?
“Sound on cane” is an important element of ADA Solution’s detectable warning tile design. The visually impaired, and blind, rely on audible cues from their cane as they sweep it in front of them. ADA Solution’s composite material and proven design features enhance sound attenuation making them the best choice for true detectability.
Can I cut ADA Solution’s detectable warning tiles? If so, does it affect the warranty?
ADA Solution’s cast-in-place, retrofit, and radius systems can be cut in the field. Use a continuous rim diamond blade or a 32 tooth carbide tip blade to cut the tiles. We do not recommend cutting the straight replaceable tiles. Please call (800)372-0519 for more information.
Where can I purchase ADA Solution’s detectable warning?
ADA Solution’s detectable warnings are sold through local distribution. Please call (800)372-0519 with any questions.
Find a distributor near you by searching on our Dealer Locator page
How can I get ADA Solution’s approved for use in my city or town?
Please contact us at (800)372-0519 and we will submit our products to the necessary department for approval.
When cutting a retrofit tile I cut off the preformed fastener dome. What should I do?
Use a half-inch countersink bit to create a recess in any of the existing truncated domes. Install the fastener as provided. Please call (800)372-0519 with any questions.
I need to install 200’ of continuous retrofit detectable warning tiles. What about the bevel?
We recommend cutting the bevel off and measure to keep the domes properly spaced. Then simply caulk the joint between the tiles.
Please call (800)372-0519 to speak with speak with an experienced professional.
I need to install 300’ of continuous replaceable detectable warning tiles. Should I space them?
Installation of successive replaceable tactile units requires specific installation procedures. Please read through our Replaceable Installation Instructions or call (800)372-0519 with any questions.
Does temperature affect the installation of the surface mounted tile?
Yes. The adhesive requires temperatures of 30 degrees F and rising to allow for proper curing.
Which ADA Solution’s detectable warning system should I use for my project?
For new construction we recommend the cast-in-place, or cast-in-place replaceable systems. The cast-in-place and cast-in-place replaceable systems allow for an earlier completion date – saving you time and money. The surface mounted system is used to retrofit existing concrete ramps.
Please call (800)372-0519 to discuss the best detectable warning solution for your current and future jobs.
What tools are required to install the cast-in-place systems?
You will require a rubber mallet, as well as edging and finishing tools. Also, a razor knife for removing the plastic protective covering after installation. Please read through our Cast-In-Place Installation Instructions or call (800)372-0519 with any questions.
What about radius installations?
ADA Solution’s radius replaceable and radius retrofit systems are designed to save you time and money. No more wasted material or manpower. To learn more about our line of Radius Products please visit our Radius Products Page, or call (800)372-0519 for more radius system information.
Are detectable warnings required in parking lots?
There are currently no requirements to demarcate access aisles for accessible parking stalls, although detectable warnings are required for curb ramps and blended transitions between pedestrian passageways and street crossings. The ADA also requires them for pedestrian islands, at-grade rail crossings, and edges of unprotected boarding platforms and boarding/alighting areas of sidewalk/street-level rail vehicle stops.
Are detectable warnings required on private property?
A series of Public Right of Way Accessibility Guidelines pertains to public rights-of-way, not private property. Proposed in 2015 to update the 2010 ADA Standards, these guidelines concern pedestrian access to sidewalks and streets and cover crosswalks, curb ramps, pedestrian signals, parking, and street furnishings. Under the new guidelines, detectable warning surfaces would be required to be a minimum of two feet deep in the direction of pedestrian travel.
Who invented tactile paving?
Seiichi Miyake, a Japanese inventor, was inspired to create tactile paving when a friend was losing his vision. The first tactile paving surface appeared in 1965. It consisted of special mats with raised shapes, including round bumps to signal danger and straight bars to guide pedestrians toward safe areas. These “Tenji blocks” were first used in 1967, near the Okayama School for the Blind in Japan.
Over the next decade, tactile pavement spread to Tokyo and Osaka; detectable warnings were included as part of the 1991 ADA requirements and their scope has since been expanded.