Clean and sweep all loose particles from the surface. Remove any sharp protrusions and fill in any holes with 1:3 mixture of sand/cement. Prime the floor if the surface is contaminated with oil, etc. in accordance with the tile adhesive manufacturer's instructions. The flexible conduit (12-16mm) for the floor sensor needs to be parallel with the mat sitting between a cable loop. Decide on the direction of the cable loops and lay the mat on the floor so a channel for the conduit can be marked and then made. The channel should be deep enough for the conduit to fit flush with the floor surface. The insulation of the conduit is necessary so that in the unlikely event of sensor failure, it can be removed and replaced easily, without lifting the floor. The sensor cable is then inserted into the conduit and both ends are sealed/taped. The Devimat™ MUST be connected by an authorised electrician. |
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The Devimat™ is self-adhesive, so the mat should be laid with the cable facing upwards. In situations where the mat has to be turned over or the mat cannot stick to the surface, the mat can be secured to the floor using:
For concrete floors: Devipins or a hot glue gun (taking care not to damage the cable) or
For wooden floors: a staple gun or
For Both: double sided adhesive tape 35mm width max. using the minimum amount with maximum adhesion. |
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When the Devimat™ reaches an obstruction, e.g. the end of a wall, it can be simply turned by cutting the mesh netting (NOT THE CABLE) and placing the next length parallel with the first. When installing the mats, ensure a 50mm gap is left between the end of the loops of the mat. |
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The heating mat must be guided around drains, basins and other objects which are attached to the floor to avoid the risk of drilling holes in the heating mat at a later stage. |
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Working with a width of Devimat™ at a time, apply flexible tile adhesive through the mat with a rubber backed trowel or similar so that the cable is covered. Make sure that there are no air pockets. Then another 3mm of adhesive can be applied carefully using a suitable notched trowel to comb the adhesive before applying the tiles. |
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An alternative method is to lay the Devimat™ over the area of the floor to be warmed. A suitable self levelling compound is then applied to cover the mat. Once this has set a 3mm depth of flexible tile adhesive is spread over the compound and a suitable notched trowel is used to comb the adhesive before applying the tiles. |
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