Tiling Kitchen floor and Underfloor heating - TilersForums.com

[Captain]

Hi

I am in the process of pricing up for a kitchen floor, it needs thermal boards, then electric heating mat, and tiling, the problem is the kitchen floor is half old floating floor which has been lined with Ply, and the other half is solid concrete skimmed.

The levels are all very good, im just a bit worried about laying the same thermal boards over two types of flooring even with flexible adhesive...

what do you guys think?

thanks Ian

 

[kennethbond]

If you already have tile, you don't have to tear out the tile, but you still have to take precaution that it's level. You can lay laminate wood flooring.

1. Allow the flooring to acclimate to the room temperature and humidity at least 48 hours before installation. Set out the laminate flooring. Heat the room to a temperature between 65 and 85 degrees. Don't stack the boxes any higher than a pile of three and keep at least 4 inches of space around them for good airflow. Keep the boxes out of direct sunlight and away from heat ducts.
2. Take off the molding. Check the tiling to make sure that it's clean and level. If it’s not use floor leveling cement to adjust. Undercut the door frames so the frame is 1/4 inch higher than the installed flooring. Roll out the foam underlayment. Don't allow the edges to overlap when you cut the underlayment to fit the size of the room. Each manufacturer provides installation instructions for the underlayment.
3. Measure the room and divide the width by the plank's width. It's important that the first plank and the last plank are the same width, so add the remainder to the width of a plank and divide by two.
4. Start at the left and work toward the right. Run the planks lengthwise against the wall. Use the spacers to maintain the gap of 1/4 inch to allow for expansion. When you start to lay the laminate wood flooring over the tile and underlayment, start with just 4 planks.
5. Use the wall as your guide when you lay the first plank. Tuck it up against the wall. Begin row 2 with a plank that you cut to 1/3 its length. Plank number 3 connects to the first one at the end and locks in place. The fourth plank goes on the end of the second and locks to both the first and third plank. You've created the foundation to build the rest of the flooring. Add to the two rows.
6. Use varying lengths for the additional rows, but don't make a plank shorter than 16 inches. Select the planks from at least three different cartons. Make sure the last row is approximately the same size as the first. You'll probably have to cut it to fit the area. Keep it 1/4 inch away from the wall with a spacer. Either replace the trim, or use the special trim tracks most companies produce for their laminate wood flooring. You've completed laying laminate wood flooring over tile.