Having heating pipe within the slab ensures that it will always be possible to heat (or cool) the building. Typically, the required flow temperature of heating water is 35-40C and this can be produced very efficiently using solar panels or a heat pump. Such flow temperatures do not depend on the continuing availability of fossil fuels. In cooling mode, the required flow water temperature is typically 13-17C, which is warmer than ground water and can be produced very efficiently.
For Underfloor Heating systems where greater ease and speed of installation is required over a basic screeded floor system, Wavin UFH System Plates provide an economic solution.
The Wavin UFH System Plates are vacuum-formed sheets of tough plastic incorporating a grid of clips specially designed to hold the heating pipe securely.
The sheets are laid over chosen insulation before pipe installation and screeding. Joints between the plates are formed by overlapping their edges, clipping them together to form a continuous layer so this system is ideal for liquid screeding.
Pipe installation is fast and easy: the installer can remain standing while feeding the pipe from a coil onto the clips and using their foot to press the pipe into position.
Pipe centres can be as close as 50mm and, if necessary, the pipe can be placed diagonally where required by the room shape/layout.
With Wavin UFH Pocketed Polystyrene it is possible to install the insulation, that must be installed anyway in order to comply with building regulations and floor U’ value requirements, plus the base for an UFH system, at the same time. The need for mesh, clips or system plates is completely eliminated and the two on site processes are reduced to one. This saves time!
The patented Wavin UFH Pocketed Polystyrene panels are manufactured from Knauf’s 2400 x 600mm Polyfoam Floorboard panels and are available either 35mm, 50mm or 75mm thick with pipe channels spaced at 150, 200 or 300mm centres.
The panels are rigid sheets of extruded insulation that have channels cut into the top surface, into which the heating pipe is pressed. The channel is widened at intervals to form pockets that are slightly deeper than the diameter of the pipe. Between the pockets, short sections of channel act as grippers and hold the pipe securely in place.
The pockets themselves have been shaped to encourage the screed to wrap completely around the pipe, achieving excellent heat transfer into the screed. With systems where the pipe is fixed to the top of plain insulation, a thick sand/cement screed will often form a bridge over the pipe, leaving only half its circumference in contact with the screed.
With the Wavin panels in place, pipe is pressed into the channels and the screed is laid on top.
When the screed has dried completely, the full range of tile, timber and carpet floor finishes can be adde
Wavin Underfloor Heating systems for screeded floors, Basic Screed System, System Plates and Pocketed Polystyrene can be used in conjunction with all Part E Robust Standard Details for screed floors.
The separating floor constructions assessed and approved by Robust Details Limited, for Part E Building Regulations, are capable of consistently exceeding the performance standards specified in Approved Document E to the Building regulations for England and Wales. They are designed to be practical to construct and tolerant to workmanship error.
With this in mind the underfloor heating system can be installed as part of an acoustic construction with confidence.
This unique system, which has been developed and patented by Wavin Underfloor Heating, is an ideal method of incorporating warm water underfloor heating/cooling within a standard Raised Access Floor.
Wavin RAF injection-moulded brackets plug directly into the pedestal caps of either older or current versions of Kingspan and Propaflor Raised Access Floor systems, after the pedestals have been installed and levelled.
The brackets support the RAF heating modules in such a way that their top surface is in direct physical contact with the underside of the galvanised floor panels once these have been fitted. With brackets and heating modules in place, but before the floor panels themselves are installed, continuous lengths of 16mm Polybutylene pipe are pushed into channels pre-formed in the top surface of the modules, forming individual heating/cooling circuits.
With the tails of the pipe circuits brought together and connected to a distribution manifold, the galvanised floor panels are laid as normal. The floor is now ready to be used as a radiant heat source capable of producing 50-85Wm-2 using water with a flow temperature of 45-60C.
The introduction of Part L2:2002 limits the total solar cooling load to 25Wm-2 within a commercial building. With the water flow temperature reduced to 13C the floor is now able to provide cooling. It is typical for the floor to provide a cooling power of up to 25Wm-2 from its upper surface alone. This can easily be increased to 35-40Wm-2 by us
Wavin UFH Foiled Polystyrene Heating Panels for fully floating floors are an assembly of extruded polystyrene insulation, aluminium diffusers and polythene film.
Pipe channels are machined into the top surface of each extruded polystyrene panel at 150, 200 or 300mm centres and then fitted with aluminium diffusers. A polythene film is then fitted over the whole surface. This bonds the diffuser to the polystyrene panel, eliminates ‘ticking’ as the panel warms and protects the pipe channel from dirt ingress prior to inserting the pipe during installation. When the continuous lengths of Wavin UFH heating pipe are pressed into the foiled channel, the foil acts as an excellent heat conductor and with a floating floor deck installed the heat spreads evenly across the underside of the floor deck.
The heated panels are used in conjunction with return panels which insulate pipe loops, preventing localised ‘hot spots’ caused by a high density of flow and return pipes runs passing through doorways en route to the UFH manifold.
Wavin UFH Modular Polystyrene is the simple and easy way of installing UFH from below a suspended timber floor; in particular one constructed using manufactured timber I-beams.
The Wavin UFH Modular Polystyrene panels are pre-assembled modules of extruded insulation, aluminium and polythene film. Channels are routed into the top surface of the insulation and have aluminium heat diffusers fitted into them, to conduct heat from the pipe and spread it evenly across the underside of the timber floor deck. The whole surface of each panel is factory-fitted with polythene film, to fix the diffusers securely in place and separate the aluminium diffuser from the underside of the floor deck – eliminating any risk of the floors “ticking” during warm up and cool down.
They are available in a range of different thicknesses, to suit varying insulation performance requirements, and are cut at widths to suit joists set at 400mm and 600mm centres.
Just before each panel is installed, a length of heating pipe is inserted, with the two pipe ends emerging from one end of the panel. The module is then offered up into the joist-space and the module can be screwed directly to the underside of the floor deck using suitably sized screws and washers. Alternatively, it can be supported on battens or extruded angle brackets fixed to the faces of the joists, so that its top surface is in tight contact with the underside of the floor deck. Installing the system in this manner means the floor deck
Wavin UFH Chipboard/Plywood Panels make it very easy to install underfloor heating in Suspended or Battened timber floors. They are equally suited to both new-build and refurbishment projects.
The patented panels are manufactured from standard 22mm moisture-resistant 2400x600mm tongued and grooved Puhos floor panels. A serpentine channel routed into the underside of each panel has 10mm diameter Wavin UFH pipe pressed into it. The pipe is wholly within the thickness of the panel, with the two pipe-ends arranged to emerge from one end of the panel. The underside of the panel is covered with aluminium foil, enhancing heat transfer into the panel.
The top surface is permanently printed to the show the position of the pipe.
The Chipboard/Plywood Panels are normally laid side by side in the active centre of a room with plain Puhos panels set around them to complete the floor. Plain panels made by other manufacturers have different, incompatible T+G profiles.
Panels are typically interconnected in parallel with each panel being connected to a Reverse Return circuit using Wavin UFH 16/16/10mm Branch Reduced Tees. In such an arrangement, each panel in the circuit receives water at the same temperature ensuring an even heat distribution.
Wavin UFH Timber Joist Panels are Foiled Polystyrene panels designed for fitting from above, between joists set at 400mm or 600mm centres.
Plastic ‘L’ Brackets are nailed into position with their top vertical edge flush with top of joist. Panels are installed within the joist space supported on ‘L’ shaped angle sections that are installed flush with the top of the joist. This provides support for the panel and ensures direct contact with the floor deck. Pipe is taken to adjacent space by cutting channel/notch in joistThe Wavin UFH Timber Joist system provides even, consistent heat output across the entire floor and is ideal for the use in combination with natural timer floors as they can be laid as normal over the joists and underfloor heating. Because there are no ridged spreader plates or brackets fixed to the top of the joists, they are unobstructed, so the timber floor can be glued directly to them to suit Building Regulations Part E.
The absence of a pug means that there are no wet trades involved so the floor can be laid as soon as the underfloor heating pipework has been installed and tested, as opposed to days or weeks after. Possible problems with the pug cracking and crumbling due to the floor structure deflecting with traffic are also avoided, so there is no degradation of system performance over time as an air gap does not form.
Wavin UFH Timber Batten Panels are foiled polystyrene panels that are formed 340mm or 540mm wide to fit between battens set at 400mm or 600mm centres.
They are used in preference over Wavin UFH Foiled Polystyrene for installations where either the finished floor must support greater loads than a fully floating floor is designed for, or where square edge timber planks is intended to be used.
The panels are always used with battens of the same thickness so that the floor is laid in contact with the heating panels when fixed to the battens. Plain battens can be fixed to the sub-floor or left floating but the sub-floor must be flat and level to SR1/SR2 standard.Because the panels are pre assembled the installation time is greatly reduced when compared to installing separate insulation and ridged diffuser plates. Standard insulation panels require cutting down so that the will fit between the battens, creating waste and increasing installation time. On the contrary Wavin UFH Timber Batten Panels are pre cut to the correct width and can be used to space the battens quickly and accurately.
By using soft temper aluminium the risk of sharp edges, commonly left by cutting thicker plates with tin snips is reduced, and any that are formed can be easily made safe using a craft/box knife. This prevents the pipe from being abraded and potentially forming a leak where it passes contacts rough cut edges.
The absence of a pug means that there are no wet trades involved so the floor can be la
Wavin UFH Timber Batten panels can be installed in Acoustic Battened floors. Using 'L' shape brackets, Wavin UFH Timber Batten panels can be supported to ensure that they are in constant contact with the floor deck regardless of the movement of the resilient layer.
Using the same basic installation process that is used for the Wavin UFH Timber Joist system, installation is quick and simple. Once installed the product used guarantees the heat output of the system allowing the system to be specified and designed with confidence.
The risk and uncertainty or remedial action being required for to bring a completed floor construction up to the standards set out in Part E, with the potential delay completing the property, is eliminated.
By registering the use of these floor constructions with Robust Details Limited, the Pre Completion Testing usually required by the Building Control Body is no longer necessary. Allowing extra money to be invested in the properties construction rather than paying testing fees.
Wavin Timber Batten Panels are foiled polystyrene panels that are supported directly by the top packer in the acoustic levelling cradle. The panels are always used with battens of the same thickness, ensuring that the supported panels are in constant, firm contact with the underside of the floor deck regardless of any movement.
Using the same basic installation process that is used for the Wavin UFH Timber Batten system, installation is quick and simple. Once installed the product used guarantees the heat output of the system allowing the system to be specified and designed with confidence.
The risk and uncertainty or remedial action being required to bring a completed floor construction up to the standards set out in Part E, with the potential delay completing the property, is eliminated.
By registering the use of these floor constructions with Robust Details Limited, the Pre Completion Testing usually required by the Building Control Body is no longer necessary. Allowing extra money to be invested in the properties construction rather than paying testing fees.
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