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RETRO18 is an ultra low profile British engineered board which is the same height as a 5p coin (18mm).The Fermacell Gypsum fiber Boards are engineered gypsum flooring panels with a 60% recycled content, which gives a strong and quickly installed dry screed system.
The boards are pre-grooved and pipes are laid directly into the channels. The boards have a high thermal conductivity (0.38W/mK) so heating response times are quicker and energy use is reduced without the need for additional elements to act as the heat emitter. The boards are butt-jointed and can be screwed and glued to the sub-floor ensuring a solid floor finish.
The channels accept 12mm pipe at 150mm centers giving a low profile system.
This allows you to lay underfloor heating on top of your existing flooring, without significantly raising the floor level.
The system is very different to traditional methods that use a cementations screed poured around and on top of the piping; this can raise the floor level by at least 50mm! Most suppliers of this type of retrofitted system offer a combination of straight connection boards and an end board for the returns; this different layout of grooving makes that cost of the boards quite high and possibly problematic when two elements need considering rather than a single board.
The unique layout of the grooving on the boards from Underfloor Heating Supply mean that only one board is required to provide both the straight and return parts of the installation. This serves to both reduce purchase cost and simplify installation.
Underfloor Heating Supply are now stocking retrofit products, the RETRO18 range of overlay board allow you to lay underfloor heating over old flooring without having to spend a significant amount of money and time excavating the floor. The best part about their range of overlay board is the height, the RETRO18 overlay boards are the height of a 5p coin (18mm).
The RETRO18 Fermacell Gypsum fiber boards are a homogenous composition of gypsum and cellulose fibers, recycled from waste paper and water.
One of the main issues wet underfloor systems normally have in an existing property where the floor structure is already in place is the potential upheaval of the floor. The system’s profile is too high to be laid over existing flooring, often increasing floor height by at least 50mm plus a thickness of insulation. Care must be taken to consider the quality of an insulation layer which is often ignored by other suppliers – insulation beneath underfloor heating is vital to ensure correct control and keep running cost to a minimum. Underfloor Heating Supply recommends the use of SuperfoilUF insulation beneath their Retro18 dry board system.
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