A raised floor offers an effective solution for creating stable and comfortable floors.
By using the Granab subfloor system in combination with mechanical ventilation, you get a construction that solves many problems with moisture and emissions in the basement, thereby providing a better living environment.
Advantages of raised floors
Raised floors have many advantages over conventional flooring solutions. The design creates a ventilated air gap that acts as an effective barrier against moisture from the concrete, which is particularly beneficial in uninsulated concrete slabs and basements.
The Granab system is an excellent choice for renovations involving moisture or mould damage, as the system uses girders made of inorganic materials.
The system is combined with mechanical floor ventilation, which minimises the risk of moisture and mould damage while maintaining a low floor height.
When used in multi-storey buildings, sound insulation is significantly improved with raised floors, as the system acts as a sound-reducing complement to the building frame.
Installation and materials for raised floors
When installing raised floors, dimensionally stable girders made of galvanised steel or a specially designed wooden beam are mounted directly on the raw floor structure. To make installation as smooth as possible, the girders are designed and delivered pre-cut, together with accompanying drawings for both the girders and any floor ventilation. The system uses an effective sound-absorbing system that provides progressive suspension.
The installation process begins with cleaning the concrete slab of all organic material, followed by the installation of supply and exhaust air ducts for ventilation. Installation is dry and quick, which means you avoid wet surface levelling and long drying times.
Prevent moisture problems and mould
Many villas have problems with moisture rising through the concrete slab, which can cause mould and unpleasant odours. A raised floor creates an air gap that prevents direct contact between the floor covering and the concrete. Mechanical floor ventilation is a central part of the system that actively works to prevent moisture problems.
The system consists entirely of non-organic material, which means that it is not affected by moisture or temperature changes. This is a major advantage over traditional constructions, which can encounter problems when moisture from the slab affects the materials.
Different floor types and customisation options
Raised floors are compatible with many different floor coverings, including parquet, carpet and tiles. Installation follows a structured process in which insulation, floor chipboard and finally floor covering are installed in the correct order.
Underfloor heating can be easily integrated into the construction and the dimensional stability of the system is not affected by temperature changes. This makes it an ideal solution for modern energy-efficient villas.
Summary
Raised floors are a modern and effective solution for creating stable, comfortable floors that resist moisture. The system offers flexibility in design and installation while solving many of the problems associated with traditional floor constructions.
FAQ – Frequently asked questions about raised floors
Our systems
Environmental certification
Granab works actively to reduce environmental impact and has certifications that confirm our commitment to sustainability. All our subfloor systems have Environmentally Product Declarations (EPD).
