Ballast-Lok Concrete Roof Slabs

Armtec’s Ballast-Lok concrete roof slabs and locking clips provide superior wind uplift resistance for protected membrane roofing systems. The innovative Ballast-Lok concrete roofing system has been proven to withstand wind uplift pressure of 180psf (8.6Kpa), using the experimental safety factor of 1.5 as per the CSA A 123.21-10 dynamic wind test protocol.

As weather patterns become increasingly erratic, protecting flat roof decks from wind uplift is a growing concern. Over time, wind dynamics can cause fatigue in rooftop materials and lead to disastrous failures. The Ballast-Lok system provides insurance by locking down concrete roof slabs with high-performance polyethylene clips and pedestals.

The system can be used with Armtec’s white solar reflective roof pavers, which reflect the sun’s rays away from a rooftop, reducing interior heat gain and cooling loads.

Product Features

• Proven to withstand wind pressure of 180psf, 1.5 (safety factor)
• Easy installation – lifting clamp and leverage fork increase installation speed and reduce labour
• Reduces heat island effect
• Lowers cooling costs and saves energy

Typical Applications

• Commercial buildings
• Flat roof installs
• Green roofs (LEED^®)
• Low- and high-rise structures
• Terraces and balconies 

Product Specifications

• Ballast-Lok slabs – 610mm x 610mm x 50mm custom concrete slabs, available in a variety of finishes and textures including Solar White
• Ballast-Lok clips made of high-performance polyethylene with UV protection
• Accessories include easy-to-use lifting clamps, leverage forks and repair kits