Roof Ballast Slabs

Armtec’s roof ballast slabs offer the strength, durability and beauty of natural stone, with the potential for time and cost savings because of their ease of installation. Slabs are precision fit with a consistent thickness and a slip-resistant finish. Designers can choose from a variety of colours, textures, patterns and sizes to create a unique outdoor environment.

Roof ballast slabs are suitable for new construction, renovation and retrofit projects.

Product Features

• Supports pedestrian and mechanical equipment traffic
• Fast and easy installation
• Outstanding durability and slip resistance
• Resistant to UV rays, accidental punctures and extreme temperatures
• Superior wind uplift and fire resistance
• Excellent drainage

Typical Applications

• Commercial and residential buildings

Specifications

• Two preferred systems – Pedslab built-in pedestal system designed to reduce installation labour, and standard roof ballast slabs installed on industry-approved membrane systems
• Compressive strength – minimum 8,000 psi (55 MPa)
• Absorption – less than 5%
• Freeze-thaw resistance - less than 1% loss in weight after 40 cycles
• Flexural strength (modulus of rupture) – minimum 725 psi or 5 MPa (breaking load depends on span thickness)
• Variety of colours, textures, patterns, sizes and thicknesses available

Relevant Standards

• ULC certified flame spread rating on Pedslab built-in pedestal system