Aluminum substructure

Aluminum sub-construction – a precise foundation for your patio

Dimensionally stable, lightweight, and low-maintenance: An aluminum sub-construction provides a solid foundation for patios made of wood, thermo-treated wood, or WPC. Because aluminum does not swell or shrink like wood, it enables a precise and uniform installation. However, temperature-related changes in the length of the profiles must be taken into account during planning.

Advantages of an aluminum sub-construction

• ✔ Minimal dimensional changes due to moisture
• ✔ Suitable for many wood, thermo-treated wood, and WPC deck boards
• ✔ Low dead weight and easy to work with
• ✔ Enables a precise and level patio installation
• ✔ Can be combined with clips, screws, and other system accessories

Alternative to wooden sub-constructions

Unlike wood, aluminum does not absorb moisture and therefore does not show moisture-related swelling or shrinking. However, the material can expand or contract with changing temperatures. The required gaps, fastening points, and movement allowances therefore depend on the respective profile system and the manufacturer's specifications.

With proper planning, an aluminum sub-construction forms a resilient base for patio installation. The permissible spans and distances depend on the profile, the load, and the patio decking used.

Installation and combination

The profiles are installed using suitable clips, screws, and connecting elements. Depending on the profile height, they can also be suitable for patios with limited installation height, for example on balconies or roof terraces. Spacers or height-adjustable pedestals facilitate leveling and support a uniform alignment of the construction.

Gunreben – aluminum sub-constructions and suitable accessories for a professionally planned patio installation.