Lytag® lightweight aggregate is ideal for green roofs
Lytag® lightweight aggregate is up to 40% lighter than natural aggregate concrete, making it ideal for green roofs, and for tray systems.
Advantages: Reduced dead load; lighter support structure required.
Benefits: Greater flexibility in design.
An articulated truck can carry 36m3 of Lytag® compared with 18m3 of natural aggregate. More volume per truck reduces vehicle trips, haulage costs and environmental impact.
Advantages: Quicker delivery to site.
Benefits: Savings in time, unit and haulage costs; less environmental impact.
Strength & Stability
Lytag®’s rounded shape and strength means it will not compact or break up over time, unlike irregular shaped aggregate, which can compact and silt up.
Advantages: No clogging, degradation or impediments to drainage; no damage to plastic pipes, membranes or bags.
Benefits: Extended life of the system; reduced maintenance costs; higher performing green roof.
Handling & Placing
Lytag® pellets are very hard, light and half the weight of natural aggregate.
Advantages: Easy and quick to put into position; no specialist equipment needed.
Benefits: Reduced injuries; time and cost savings.
Rapid dispersion of water is improved by both high absorption and lack of compaction. Low compaction offers improved rates of hydraulic conductivity compared to natural aggregates.
Advantages: Drainage systems are vastly improved.
Benefits: An efficient green roof system; lower maintenance and replacement costs.