Skip to Content
Enviro-Rock logo

Foam Glass Aggregate

Save Time, Money & the Environment.

Enviro-Rock is a high-performance foam glass aggregate made from recycled glass. Significantly lighter than conventional aggregate, it reduces structural and ground loading while providing free drainage, thermal insulation, frost resistance, and long-term durability.


Order Now

Applications Benefits & Properties Case Studies & Research Brochures & Guides Our History
─────  PROVEN ON REAL PROJECTS  ─────

Where Enviro-Rock has been specified

 CIVIL INFRASTRUCTURE 

Jim Lorimer Park

A new playground had to be raised to grade over compressible, settlement-prone ground without adding weight the soft soils could not carry. Enviro-Rock went in as a 500 mm lightweight fill between two geogrid layers, reaching grade while keeping load off the ground below. Around 646 m³ of Foam Glass Aggregate cut projected settlement from about 600 mm down to 200 mm.

View case study →

Arial photo of Enviro-Rock being placed at a playground under construction

 CIVIL INFRASTRUCTURE 

Killarney Park Soccer Field

A new soccer field had to be brought to grade over soft, compressible ground without overloading the soils below. Enviro-Rock went in as the lightweight fill beneath the field, reaching grade at a fraction of the weight of granular fill while staying free-draining. Around 11,000 m³ of Foam Glass Aggregate gave the pitch a stable, low-load foundation.

View case study →


Arial photo of an excavator placing Enviro-Rock during the construction of a soccer field

 BUILDING 

6-Story Building

A new affordable housing building had to be founded over deep, compressible clay that could not carry the added weight of a conventional fill. Enviro-Rock went in as a load-compensating replacement, with heavy soil dug out across the footprint and replaced by foam glass aggregate at a fraction of the weight, keeping load off the ground below. The result is a stable foundation zone that keeps long-term settlement in check, built from 100% recycled glass.

View case study →

Enviro-Rock as part of a foundation for a 6-storey building

Benefits

One material. Multiple performance advantages.

Enviro-Rock performs multiple functions within a single aggregate layer, reducing the need for separate materials or additional layers. Its lightweight structure helps reduce loads on structures and weak soils while providing free drainage, thermal insulation, frost protection, and long-term stability.

Explore the benefits below to see how each property supports project performance.



Enviro-Rock’s low density makes it easier to transport, move, and place than traditional aggregate. Its lightweight nature can also help reduce loads on structures and underlying soils while making installation more manageable on site.
Enviro-Rock provides insulating performance while also functioning as lightweight, free-draining fill. This can help simplify assemblies by combining thermal resistance with drainage and load reduction in a single material.
Enviro-Rock is made from recycled glass and is inherently non-combustible, making it well suited for assemblies where fire resistance and material safety are important. Unlike many lightweight fill and insulation materials, it does not rely on combustible components to achieve its performance.
Enviro-Rock’s porous structure can help reduce the transmission of sound and vibration through building assemblies. This makes it a useful material where acoustic performance is an added consideration alongside lightweight fill, insulation, or drainage.
Enviro-Rock is made from 100% recycled glass, turning a waste material into a high-performance building and civil product. Its lightweight nature can also reduce the amount of material being transported and supports projects looking to incorporate more recycled content and circular construction practices.
Enviro-Rock’s open structure allows water to drain freely through the material, helping reduce water buildup and the risk of frost-related movement. Its resistance to freeze-thaw conditions makes it well suited for foundations, backfill, landscaping, and other applications exposed to changing weather conditions.
Enviro-Rock is resistant to many common chemicals and does not provide a food source or habitat for pests. This helps it maintain long-term performance in demanding environments where moisture, soil conditions, or biological activity could affect traditional materials.
Enviro-Rock is designed to maintain its performance over the long term, even in demanding below-grade and exposed applications. Its stable glass structure resists decay, moisture damage, and biological breakdown, helping provide reliable performance throughout the life of the project.
Enviro-Rock’s free-draining, highly voided structure can create an effective sub-slab layer for radon gas collection and movement. Used as part of a properly designed radon mitigation system, it can help provide a continuous pathway beneath the slab while also contributing drainage and insulation.

Enviro-Rock can help reduce overall project costs by combining multiple functions in a single material, including lightweight fill, drainage, and insulation. Its low weight can also reduce transportation, handling, and structural demands, helping simplify construction and improve overall project efficiency.

Applications

Where Lightweight Fill Makes Sense.

Enviro-Rock brings lightweight structural efficiency to both building and civil infrastructure projects. It is well suited to applications where reducing load, maintaining drainage, or improving thermal and frost performance is important, including foundations, rooftops, roadways, retaining walls, bridge approaches, and utility corridors.

Explore the applications below to see where Enviro-Rock can be used.



Building Applications

Enviro-Rock provides a lightweight alternative to conventional aggregate for foundations and structural backfill. Its low density can help reduce loads on underlying soils and structures while also providing drainage and insulating performance within the same fill layer.
Enviro-Rock provides lightweight fill for rooftop landscapes, terraces, and amenity areas where reducing dead load is critical. Its free-draining and insulating properties also make it well suited for assemblies that need reliable drainage, thermal performance, and long-term stability

Civil Infrastructure Applications

Enviro-Rock provides a lightweight, free-draining backfill option for utility corridors and trench applications. Its low density can help reduce loading on weak soils and buried infrastructure while also simplifying placement and supporting reliable drainage around the installation.
Enviro-Rock provides a lightweight fill solution for roadway construction and embankments where reducing load on weak or compressible soils is important. Its low density can help limit settlement while providing stable, free-draining fill for long-term infrastructure performance.

Want to learn more?

Book a training session with us to find out how Enviro-Rock can work for your projects.

Submit

Lighter on the Planet

Utilizing its lightweight, fire-resistant, and insulating properties, Enviro-Rock enhances project performance across applications like lightweight fill that is fire and frost resistant, and sustainable, while prioritizing durability, energy efficiency, and sustainability.

Get a Sample