Low installation heights and restricted floor load capacities are the greatest challenges for using underfloor heating in old buildings. Viega is now offering an economic alternative with the product Fonterra Base Flat 12. It is installed like a conventional wet system but a tested additive in the cement screed means it is possible to achieve very low installation heights and the floor can be walked on again very quickly.
What tends to be available in sufficient quantity in new builds often causes enough problems for renovations and restorations. We’re talking about the available installation height for floors. Up to now, the desire for underfloor heating could only be satisfied if specially coordinated systems were used. And this was very expensive in some cases.
Extra flat and extra quick drying time
However, it is now possible to install underfloor heating in both old and new buildings alike, with the new Fonterra Base Flat 12 by Viega. The thinnest and quickest screed system on the market is made up of a studded panel, a polybutene pipe and the special Base Flat screed additive. All three products in combination make it possible to create particularly thin cement heating screeds, meaning the entire system is only 35 millimetres in height or 45 millimetres with insulated panels. A height, which does not collide with existing door frames or ceiling-to-floor windows in most old buildings. Due to the flat installation height, the weight of the new floor is also reduced. Fonterra Base Flat 12 is the best thing to use in buildings with problematic statics, for example old buildings with wooden beam ceilings.
The screed additive, which has been developed and tested by Viega, ensures you can quickly walk on the system. With its help, the special screed can be walked on again after two days and the dry heating process can be begun after five days, which is important for further progress in the building.
