4 Myths about Clay Brick Pavements and Accessibility
/The beauty and durability of clay brick pavers for sidewalks, streets, and general hardscaping is undeniable. No other paving surface maintains its good looks and functional integrity under the abuse of traffic better than brick. It’s not uncommon for brick streets that are 100-plus years old to be torn up simply so the utilities beneath can be rebuilt, then repaved with the very same clay brick units after construction is completed.
And yet, despite brick’s proven history as a pavement material, clay brick pavers somehow suffer from the misperception that they can’t be used to create surfaces that are accessible for those with disabilities. People point to the potential for non-uniform elevations to develop between the individual units, or that the gaps between the pavers generate vibration for wheelchairs, or that the surface of clay pavers is simply too slippery.
It’s unfortunate that these myths persist. In truth, brick pavements are no different from other surfaces in that careful design, installation, and maintenance can allow them to meet accessibility standards. The only real difference is that brick looks better and lasts longer. Here are some common myths about brick paving with regard to accessibility:
Myth: The gaps between brick units create excessive vibration for rolling wheelchairs.
Truth: Brick pavers can be selected for the edge design that is appropriate to the application. Chamfered edges may produce what seems to be larger surface spaces between units than straight-edged pavers. Even the bond pattern of the brick can be manipulated to reduce felt vibration. Research has proven that the control joints of standard concrete pavements are more disruptive to the wheelchair user than the gaps in brick paver installations.
Myth: Brick pavements are subject to surface irregularities which can produce tripping hazards.
Truth: All paving materials are subject to movement, heaving, and/or cracking. Maintenance is a necessity for all pavement types, but brick pavements can be easily leveled by removing the offending units, fixing the base beneath, and reinstalling the same pavers.
Myth: Brick pavements are too slippery to meet accessibility standards.
Truth: Brick pavers are available in a variety of textures, including wire-cut surfaces that reduce slippage. The bond pattern can also be chosen specifically with traction in mind. In fact, those chamfered edges that might produce small increases in vibration for wheelchairs also have the effect of improving grip.
Myth: Because detectable warning surfaces are required for sidewalks at street intersections, brick can’t be used.
Truth: Brick manufacturers produce absolutely beautiful, detectable clay pavers with gently tapered, raised hubs. These units, which approach the visual appeal of small sculptures, are an aesthetic enhancement to the installation rather than an obtrusion in the overall look of the hardscape.
Myth: Brick pavers can’t be used for permeable pavements and still provide accessibility because of the large gaps between units that are necessary to infiltrate storm water.
Truth: The design, quality of installation, and type of aggregate beneath the brick pavers are the primary determinants of the volume of water that can be quickly infiltrated, not the size of the gap between the brick paver units.
The moral of this story is that you don’t have to choose between beauty and accessibility. You can have both — plus durability — with clay brick pavers. Check out the Technical Note from the Brick Industry Association for some excellent guidance to ensure that the beauty of your next design project doesn’t have to end with the walls.
