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Designing
a ballast system for single-ply membranes has long been a problem.
Stone has difficulty in preventing wind uplift and providing a uniform
weight load. Both
mechanically
 attached and fully adhered systems have shown to be ineffective
in protecting the membrane against punctures, damage from flying
projectiles, ultraviolet ray deterioration and fire. None offer a walkable
surface. ROOFBLOK Paver Systems meet all of these performance
criteria.
ROOFBLOK
Ballast Pavers can be used on roofs in new construction, retrofit &
renovation projects, as a lightweight protection layer on patios and
terraces over waterproofing membranes and in other areas limited to light to
medium foot traffic.
ROOFBLOK
Ballast Pavers are available in
seven standard colors Natural Gray, Clay Red,
Umber, Buff, Charcoal, Ginger and Plum. Custom colors, aggregate
blends, and finishes are available upon request.
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FEATURES AND BENEFITS
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Superior Wind Uplift Resistance: Wind uplift
pressures on loose-laid roofing systems are a function of wind speeds,
building height, surrounding terrain and roof design. In wind speed tests,
ROOFBLOK surpassed all other ballast systems for wind uplift resistance.
ROOFBLOK’s patented interlocking beveled design distributes wind uplift
forces across the entire rooftop rather than just on single blocks, thereby
providing resistance to the demands of nature. |
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Note: Positive building pressures can reduce a roof
paver's efficiency. Contact ROOFBLOK Technical Services for specific
installation requirements.
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Uniform Weight Distribution: ROOFBLOK’s unique
design and use of modern concrete technology provide a uniform, weight
of 12-24 psf (depending on the wind uplift requirements). The dead
load weight of field-applied stone ballast varies dramatically.
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Total Roof Protection: ROOFBLOK Ballast Pavers
create a smooth, nonskid, walkable surface that permits foot traffic on
maintenance, patio and terrace areas while protecting against scouring,
vandalism, hailstones, ultraviolet rays and other forces that might tear,
puncture or expose the roof membrane.
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Superior Fire Resistance: ROOFBLOK Ballast Pavers
are noncombustible and will protect the roof assembly from burning embers
and flame spread from external fire sources. ROOFBLOK Ballast Pavers have a
Class A rating from Factory Mutual.
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Simple to Install: ROOFBLOK Ballast Pavers have a
low unit weight which makes them easy to handle. The smooth, integrated
drainage channels allow direct contact on most membranes and insulation
without the need for costly drainage pedestals. Except for a perimeter
securement, ROOFBLOK Ballast Pavers require no clips, dowels or strapping.
Blocks are cut with a circular saw and, once installed, can be easily
removed for membrane inspection.
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