When installing surface heaters in existing buildings, specially coordinated systems often need to be used due to the structural conditions. This can be very expensive in some cases. With the Fonterra Base Flat 12, Viega is now offering an economic alternative: The new system is processed like a standard wet system - but with a tested addition to the cement screed. As a result, the system is only 35 to 45 mm.
Wet design surface tempering systems are almost solely used in new builds. As a general rule, there is sufficient installation height available there. However, the reality is frequently different when renovating existing buildings. The load capacity of the floors is often restricted here. To date, this problem could normally only be solved by dry systems or with sealing compounds, as conventional screed always requires a covering of at least 30 mm.
With the Fonterra Base Flat 12 surface tempering system by Viega, low installation heights can now also be realised in screed constructions: With the coordinated combination of system studded panels, 12 x 1.3 mm polybutene pipes and a screed covering, the total installation height is still only 35 mm. If a Fonterra studded panel, which is insulated during manufacture, is used, then the complete installation height is 45 mm. In both cases, 15 mm of screed is enough of a covering on the studded panel to fulfil all requirements for private residential construction up to a load capacity of 2 kN.
Lower weight and drying times
With the low 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 checked by Viega also provides a considerably shorter drying time than for conventional screed: Instead of 21 days, the curing process for Fonterra Base Flat 12 installations is finished after just five days. From the sixth day, dry heating can be started.
Very good heat transfer
The heat transfer is optimal with the extra-flat Fonterra surface tempering systems: Due to the perfect location of the PB pipe in the studded panel, the pipe is completely enveloped by screed. The loss-free heat transfer to the room ensures a reduction in heating costs, beyond the system’s typical energy saving.
