Styrobeck created the Rib-Raft pod systems in New Zealand, and this foundation solution is still popular today.
Rib-Raft floors are a top choice for both commercial and residential buildings in New Zealand. By using polystyrene pods in the foundation, the system reduces the amount of concrete needed. This saves on material costs and makes construction quicker because it allows for above-ground installation, so there’s no need to dig deep trenches.
The components fit together easily, and the lightweight polystyrene pods can be cut to fit where needed, making Rib-Raft a practical and flexible option for building projects
Technical Resources
What are foundation pods?
Foundation pods are prefabricated, lightweight concrete or polystyrene structures used to support and elevate a building’s foundation. They are often used in situations where traditional concrete slab foundations are not feasible, such as on sloped or uneven ground.
What materials are foundation pods made from?
Foundation pods are typically made from materials like expanded polystyrene (EPS), concrete, or a combination of both. EPS pods are commonly used for their lightweight and insulating properties, while concrete pods offer durability and strength.
What are the benefits of using foundation pods?
Cost-effective: Foundation pods can reduce material and labor costs compared to traditional foundations.
Quicker installation: The prefabricated nature of the pods allows for faster installation, saving time during construction.
Better drainage: Pods provide natural drainage underneath the foundation, which can reduce water pooling and prevent moisture damage.
Insulation: EPS pods offer excellent thermal insulation, helping to regulate the temperature of the building.
Suitable for uneven ground: Pods are ideal for sloped or challenging sites where conventional foundations would be difficult or costly to construct.
How are foundation pods installed?
Foundation pods are typically placed on a prepared surface, with leveling and alignment performed to ensure stability. They are then filled with concrete or other materials to create a solid base for the building’s slab or floor system. In some cases, steel reinforcement is added for additional strength.
Are foundation pods durable?
Yes, foundation pods are designed to be durable and long-lasting. Concrete pods are particularly strong, while EPS pods are resistant to moisture and decay, offering durability for years if properly installed.
Can foundation pods be used in all types of soil?
Foundation pods are versatile and can be used in various soil types, but their performance can depend on the site’s specific conditions. It’s important to conduct a soil analysis to ensure that the pods will perform well on your particular site, especially in areas with unstable or expansive soil.
Are foundation pods environmentally friendly?
Foundation pods can be environmentally friendly, especially when made from recycled EPS. EPS is a recyclable material, and using foundation pods can help reduce waste and the need for traditional concrete, which has a higher environmental impact due to its carbon footprint.
How much weight can foundation pods support?
The load-bearing capacity of foundation pods depends on the material and design. EPS pods can support substantial weight, but for heavier structures or specific applications, concrete pods or reinforced EPS pods may be necessary. It’s essential to work with a structural engineer to determine the appropriate pod system for your building’s requirements.
Are foundation pods suitable for all types of buildings?
Foundation pods are suitable for many types of buildings, including residential homes, commercial buildings, and even some industrial structures. However, the size and weight of the structure, as well as the soil conditions, should be considered to determine if pods are the right foundation solution.
How long do foundation pods last?
Foundation pods are built to last for the lifespan of the building they support, provided they are installed correctly and maintained. The materials used, such as EPS or concrete, are durable and resistant to weathering, but it’s crucial to follow proper installation guidelines for long-term stability.
Do foundation pods require maintenance?
Foundation pods generally require minimal maintenance. However, regular inspections are recommended to ensure the structure remains stable, especially in areas with significant soil movement, water accumulation, or seismic activity.