Ballast Paver Title

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 Ballast Paver Projectsattached 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.



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.

Note:  Positive building pressures can reduce a roof paver's efficiency.  Contact ROOFBLOK Technical Services for specific installation requirements.

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.
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.
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.
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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Copyright © 2006 Roofblok Limited
Last modified: August 10, 2011