Laying tiles over underfloor heating need not be complicated if you use Kerakoll’s systems for both electrical and water-based installations, the company says. Below, the company provides a guide to using its products in these installations.
Once the carrier board and pipework are installed to the manufacturer’s instructions, the boards should be primed with Prime+ Grip, and then Levelflex Gel used to level and smooth the floor before beginning installation.
This highly flexible self-levelling compound can easily cope with the demands associated with underfloor heating. It uses Kerakoll’s Gel-Technology to give you exceptional control when applying it. Rapid-setting, capable of receiving foot traffic or tiles after 90 mins, with a prolonged working time of 30 mins, a flawless surface finish and an EC1-Plus GEV Emicode rating, it really is a pleasure to work with.
Once the substrate is dry, you can fix the tiles. For this we recommend using Kerakoll’s Gel-Adhesives: pick H40 Gel for standard-set, and H40 Advanced or H40 Ultimate if you want a rapid-setting adhesive.
All three of products can be used with any type of tile on any substrate due to the inclusion of new polymers to give them a high shear strength. The Gel-Adhesives are perfect for use with underfloor heating as they contain additives to increase flexibility. The unbroken structural bond which they form with the substrate and tile absorbs and evens out the stresses caused by movement of the substrate.
The flow properties of the H40 Gel-Adhesives mean that they wet the entire back of the tile as well as the substrate, giving an excellent bond and superior performance. They also have a very low environmental impact with low CO2 and very low VOC ratings and contain recycled material.
Finish the installation with Fugabella Color. Safe and easy to work with, this grout does not contain Portland cement, so it does not develop efflorescence. It has the same advantages as the H40 Gel-Adhesives, allowing you to mix it to your desired consistency and not drying out in the bucket.
