How To Build A Flooring For A House

Transcription

1 1 Installing 23mm Acoustic Fibre Overfloor Heating Panels Manufactured to EN & EN 13171, Wunda s Acoustic Fibre floor heating system combining lightweight Acoustic panels with rapid response thick Aluminium Spreader plates have been Engineered to provide a floor heating solution for any extension, renovation or new build with a need for Acoustic improvement. Wunda Acoustic Fibre panels are manufactured from wood fibres and the raw material has a density of 160Kg/m³ and can provide an Acoustic improvement of up to 29dB. Acoustic Fibre panels are quick and easy to install, using simple practices and basic tools whilst avoiding the need to remove existing floors or the moisture, weight and mess of concrete/screed. Note: Advised max length for each pipe circuit is 100m for 16mm pipe. Wunda 23mm panels use 16mm pipe with centres at 150mm and are suitable for all projects both large and small. Panels are designed to be used in conjunction with our Aluminium Spreaders this allows super fast warm up times with low temperature water often as low as 35 C. Before installing, we advise watching our online How to video guide for Acoustic floor heating. You will need: Metal edge rule Craft knife Hand saw Eye protection Dust mask 2mm A2 spreader Also recommended: Marker pen Pipe cutter Gloves Knee protection Handling of the panels 1 2 Due to the nature of Acoustic panels, care must be exercised when lifting, do not lift panels by the corners (1a), instead grip firmly with two hands along one edge (1b). lift and carry vertically (1c). If a panel breaks or snaps this will not effect the system performance, the broken section can simply be fitted back in place when bonding/fixing panels to the sub-floor. Preparation Remove skirting boards so they can be fitted once the new floor is in place. Ensure the sub-floor is stable, level, dry and free from debris (2a). If applying panels to a concrete/screed sub-floor, ensure a damp proof membrane has been installed, if not then a liquid damp proof membrane such as Mapei Mapeiproof ESM can be applied. When laying directly onto existing wooden floors ensure any loose boards are secured and level before fixing panels. 1a 1b 1c 2a Mapei Ultrabond Eco 380 is recommended as an adhesive with a quick and strong bond of Wunda Acoustic Fibre panels to all kinds of absorbent substrates including screed/concrete and existing wooden floors. If intending to pass pipework through walls, drill the holes before laying the Acoustic Fibre panels, to prevent kinking one person should feed the pipe through whilst another draws the pipe through from the other side. Continued over >>>

2 FLOOR HEATING Before laying or cutting any panels familiarise yourself with the pipe layout drawing (if supplied) noting manifold location, pipe direction, transitional pipe runs etc. If unsure of any detail, contact our free technical support team for advice, 2b 2 Fitting perimeter strip 3a Applying adhesive & laying panels on screeded floors Starting with a few square meters at a time, apply an acrylic adhesive (4a) (Wunda recommends Mapei Ultrabond Eco 380 (4b)) to the sub-floor only, using an A2 tooth spreader. Leave the adhesive until it becomes tacky generally minutes. The panels can now be applied to the adhesive. Working from the manifold location, start by laying end return and or transitional panels along one wall (working in conjunction with pipe layout drawing) (4c/d). A single end return panel can accommodate 1 flow and 1 return channel (4e), enough for one loop of pipe, areas with multiple loops will require extra end returns and transitional panels. 4f 4g REMEMBER... Allow sufficient drying time before allowing general foot traffic over boards, as this may cause the boards to slip. Keep all off cuts for future jobs and leave overnight before attempting to lay pipe. Ensure that main panels are laid flush against each other and that pipe channels are lined up. Before staring, familiarise yourself with your pipe layout drawing (if supplied) noting the direction of pipe runs as this will determine the orientation of panels. Acoustic Fibre systems use a combination of main, end return and transitional panels. The proportion of panels will depend on room shape, size and manifold location. 4a 4e Once the first strip of end/transitional panels have been laid, apply more adhesive in a strip approximately 1250mm wide, parallel to the wall, again leave adhesive to become tacky and commence laying main panels, working towards the opposite wall (4f/g). Before laying floor heating panels fit perimeter edge strip around the outside edges of the heated area this will help reduce heat loss and allow for expansion (3a). Any height excess can be trimmed off once final floor finish has been laid. 4 4d Some cutting will be required. This is easily achieved with a fine toothed hand saw or craft knife (2b). Extra pipe channels can also be cut using a suitable electric router. Corners and 90 turns can easily be created by cutting a pipe return panel to suit. The flow should always go to potential cold spots first, for example external walls or areas of large glazing. We suggest wearing flat soled shoes or trainers whilst walking on Fibre panels. Pipe should be set back from walls to avoid future placement of carpet grippers etc. 3 4c 4b TIP... To ensure pipe channels match up, a good tip is to insert short off-cuts of pipe into a couple of pipe channels where the boards meet (4j). 4j Continued over >>>

3 FLOOR HEATING Any off cuts of main panel can be carried over to the next row this will help to minimise waste. When getting closer to the opposite wall be sure to leave enough room (300mm) in order to fit an end return panel so that when the pipe is laid it can turn back. 4k 4l Fibre panels can be simply cut to shape by hand using a craft knife or hand saw, some pipe return channels will need to be cut to allow pipe to access transitional panels (4k/l). 5 Installing aluminium spreaders into panels When handling and fitting aluminium spreaders be sure to wear protective gloves as the edges are sharp. Aluminium spreaders only need to be fitted where the pipe runs are straight, end returns and corners are left bare - no spreaders (5a/b), it is perfectly acceptable to leave bends and turns as plain Fibre board, areas of high pipe density (around base of manifold) are also best left plain. Aluminium spreaders must have a minimum of 10mm gap between the end ofeach spreader to allow for expansion (5c). 5a 5b 5c Allow sufficient time for the adhesive to dry (ideally overnight) before attempting to lay pipe into panels. PLEASE NOTE: Do not cut any bends with a tighter radius than those of an end return panel as you may create a kink in the pipe. 3 An alternative method to gluing panels onto wooden floors: As an alternative to adhesive -when laying Fibre panels onto an existing wooden or chipboard floor, the panels can be fixed using phosphate/zinc countersunk screws. Four screws will be sufficient to securely hold each panel in place (4m). placement of each screw is not critical as long as you avoid placing them too near the edge of the panel or in any of the channels. make sure screws are not over tightened, leaving the screw head just below the surface of the panel (4n). 6 6a 4n 4m Once panels are screwed down the remainder of the installation can commence immediately. Approximate Screw positions Installing pipe into the panels Pipe layout example Once Fibre panels and Aluminium spreaders have been laid, you are now ready to commence laying the pipe. Ensure all pipe channels are clear of debris. Check and familiarise yourself with the pipe layout drawing (6a) noting where to begin and pipe routes for each individual loop of pipe. A pipe layout drawing will indicate each length of pipe required, do not cut pipe before laying (you may need to change the route due to unforeseen events). Continued over >>>

4 Always begin laying pipe at the manifold allowing extra pipe for final connection to the manifold, identify each loop flow and return, number each pipe with a permanent marker (6b). The pipe is easily installed by holding the pipe coil in front and walking the pipe into the Aluminium spreader pipe whilst slowly unwinding the pipe as you go (7b). 6b 7b Flooring with wood products (inc. Parquet, Solid and Laminate) Wood is a material that is extremely influenced by its environment, specifically by the moisture content of the air above and below. Depending on the relative humidity of the air and moisture content, wood will naturally vary over the seasons and so will its volume. Underfloor heating and cooling escalate the expansion and contraction of wood. It is therefore extremely important to install wood flooring with care. Flooring manufacturers often give instructions on how wood flooring should be laid, with a maximum floor surface temperature of 27 C. The easiest means of installing wooden flooring is by the Floating floor method, special attention must be taken to follow instructions on expansion joints. With Underfloor heating wood will dry and shrink more during the winter season than if underfloor heating was not installed. So it is important to keep the supply temperature of the floor heating system as low as possible and to increase the size of the expansion joints by approximately 50% in the case of large floorboards, underfloor heating will give rise to larger gaps between the boards during dry winter months. 4 8b 9b Generally for wood floating floors, it is important to have some form of vapour barrier underneath. Some wood flooring manufacturers require a polythene vapour barrier (0.2mm thick and age tested) to prevent vapour/moisture coming from below which could damage the wood flooring. For floating floors, it is advisable to use suitable underlay (foam with an integrated vapour barrier) underneath, allowing the flooring to move freely when wood expands and contracts over the seasons and to some extent improves footstep noise reduction. Simply shape the pipe by hand around end returns and bends (8b), be careful not to kink the pipe, a kink will not damage the pipe carefully press out the kink by hand or wrap a cloth around the pipe and use pliers. Wunda pipe is marked every meter so you will know when to start heading back towards the manifold. Once all pipe has been laid into the Aluminium spreaders and Fibre panels (9b), ensure all loops of pipe are identified and flow/returns marked. This will eliminate mistakes when connecting the pipe to the manifold at a later stage. Protect the newly laid floor Acoustic Floor heating system from site traffic by covering with boards where necessary. It is also important that wood flooring which has been kept in cold (outdoor) conditions to be taken into the room in which it will be fitted, so that it can acclimatise to the new (indoor) environment and this may take several weeks. Some large wood products unless kiln dried may need a longer acclimatisation period in order to dry to a sufficiently low moisture content before it can be laid. Please note: Maple and Beech are not suitable for use with underfloor heating, due to potentially large seasonal movements of contraction and expansion in these woods causing splitting.

5 FLOOR HEATING General recommendations for installing wood flooring Resilient floor coverings Flooring manufactures give instructions on how wood flooring should be laid and make reference to floor surface temperatures not exceeding 27 C. Wunda always recommends the use of our thermostats with floor probes to limit maximum floor surface temperatures. The maximum total thickness of wood floor covering should not exceed 25mm. Vinyl, Linoleum, Cork, Polyurethane, Rubber and Asphalt composites are all in the category of resilient flooring, with Vinyl being the most common. These floor coverings cannot be placed directly on top of Fibre floor heating panels and therefore require an intermediate layer that makes the surface level and load bearing. Install the wood flooring on top of a suitable underlay, remembering to leave adequate space at the expansion joints for the wood to expand and contract over the seasons, usually the space is made available along adjacent wals so that the space will be covered by skirting boards on the wall. A floating T&G chipboard floor with level joints which Vinyl or Linoleum is glued to is the simplest method of installing these coverings. Alternatively bond a suitable non-insulating tile backer board directly to the Fibre panels then place floor finish on top. Engineered or multi layered flooring Engineered or multi layered flooring should be installed according to suppliers instructions. Parquets of a laminated type (three layers) give smaller expansion and contraction movement over the seasons. 5 Solid wood (floorboards) Solid floor boards should be placed at 90 to the direction of floor heating pipe. If the floor boards are to be fixed rather than a floating floor, suitable advice should be available from your supplier, however fixing with a polymer based adhesive (Mapei Ultrabond S955) will allow for expansion and contraction of floor boards over the floor heating system. Laminate Laminates are usually quite thin (7-10mm) which from an energy perspective is more efficient than other thicker wood floorings. They should either be glued or clicked together according to the manufactures instructions. Several laminates are available with a vapour barrier and/or an acoustic layer attached to the underneath. Carpet 6mm plywood bonded to the Fibre panels with an polymer based adhesive (Mapei Ultrabond S955) or alternatively screwed down with countersunk phosphate/zinc screws (paying attention to installed pipe circuits), will prepare floor for suitable porous underlays and open weave carpets that wil work with Underfloor heating (combined TOG value of carpet and underlay should not exceed 2.5 TOG for floor heating to be effective). For more information on floor coverings that work with Underfloor heating contact your chosen floor covering supplier.

6 Overfloor panel - installation guide for floor tiles In all circumstances the Fibre panel must be bonded directly to the sub-floor and installed correctly and provide a sound, stable substrate. Additionally it must be clean and free from contamination or substances which could inhibit adhesion. Installing Ceramic, Vitrified, Quarry and Porcelain tiles Bond a moisture stable, rigid non-insulating tile backer board to the Fibre panel with Mapei Ultrabond Eco S955. Fix the tiles to the tile backer board with Mapei Kerabond T & Mapei Isolastic (100%) or Mapei Elastorapid. Mapei products overview Ultrabond Eco 380 Ultrabond Eco 380 is an adhesive approved for use with a quick and strong bond of Wunda Acoustic Fibre panels to all kinds of absorbent and stable substrates used in the building industry including screed/concrete and existing boards/chipboard floors. 6 Installing Natural Stone tiles Bond a moisture stable, rigid non-insulating tile backer board to the Fibre panel with Mapei Ultrabond Eco S955. Fix the tiles to the tile backer board with Mapei Kerabond T & Mapei Isolastic (100%) or Mapei Elastorapid. Ultrabond Eco S955 Ultrabond Eco S955 is approved for bonding ply or chipboard directly on to Wunda Acoustic Fibre panels. Kerabond T and Isolastic Kerabond T and Isolastic is an approved two part adhesive mix used to bond tiles directly on to a suitable, rigid non-insulating tile backer board used in conjunction with floor heating Mapei Aquadefense and Mapeband Mapei Aquadefense is an approved and ready to use, flexible, ultra rapid drying waterproofing membrane for use in wet rooms. Mapeband is an alkali-resistant rubber tape with textile backing used for the flexible waterproofing of edges and expansion joints. Used along side Mapelastic Aquadefense.

7 Technical Information Main Panel profile Length Width 23mm 1200mm 600mm Wunda Acoustic overfloor panel output will vary dependent on flow temperature, thermal conductivity of floor coverings, insulation levels double glazing etc. Tile and stone will produce the highest heat outputs with Timber flooring second and carpeted floor the least. End return panel Weight End/Transitional Panel profile Length 4.1kg 23mm 300mm 7 Width Weight Pipe Spacing 1200mm 1.9kg 150mm Material Wood Fibre Main panel External pipe diameter Maximum individual loop length 16mm 100m NOTE: Good practice is to use 22mm feed from boiler to manifold. UFH manifolds should always be connected to 22mm flow and return heating pipe, rather than 15mm supply pipe Acoustic surpression properties Thermal Resistance Fire Class in accordance to EN : E 29dB R0.460 m 2 K/h Produced in accordance with EN and EN Wood sourced from effectively managed forests and certified in accordance with the FSC Important Information The heat output of this floor heating system must be limited to a maximum supply water 55 C and a maximum floor surface temperature of 27 C when choosing wooden floor finishes. Floor heating cannot compensate for large heat loses of an inadequately insulated house. Please note that Acoustic Fibre floor heating systems can give an approximate heat output of up to 80W/m² with ceramic and stone tile coverings and up to 60W/m² with wooden coverings (up to 16mm thick). When mixed floor solutions are being served from the same manifold, a floor probe must be used in the floor solution with the lower maximum supply temperature. This is to limit the temperature in these floor areas and prevent damage to the floor solution and/or floor finish.

8 Wunda Acoustic Fibre Overfloor Panel - full technical specification Produced and supervised according to EN and EN Board designation Edge design First class according to EN Up to d 19 mm: EN SB - E1 From d 20 mm: WF - EN T4 - CS (10\Y) 100-TR10 Straight E 8 Declared thermal conductivity [W/(m*K)] D Declared thermal resistance λ= 0,050 [W/mK], R=0,360 (18 mm) / 0,460 (23 mm) [m2k/w] R D [(m 2 *K)/W] Density [kg/m 3 ] Up to d 19 mm:230 From d 20 mm: 250 Water vapour diffusion resistance factor 5, equals 25 MNs/g Sd value [m] 0,04(8)/0,05(10)/0,06(12)/0,08(15) 0,1(19)/0,1(20)/0,2(40)/0,3(60) Specific heat capacity c [J/(kg*K)] 2100 Minimum compression strength at 10% deformation 10 [N/mm2 ] Up to d 19 mm: 0.10 From d 20 mm: 0.15 Minimum compression strength [kpa] Up to d 19 mm: 100 From d 20 mm: 150 Tensile strength perpendicular to face [kpa] 10 Declared level of airflow resistance [(kpa*s)/m 2 ] 100 Raw material Wood fibre From d 20 mm: wood fibre, bond between layers Waste code (EAK) / Tech support opening hours are subject to change - please visit our website for the latest information