you can get insulation boards which can be fixed to a sub floor and tiled directly ontop of..
Simply so, can you tile on Celotex?
No. Celotex is not suitable directly below floor tiles. A screed is required to spread the load and prevent movement between the tiles.
Also Know, do tiles insulate? Solid floors of brick, tile or stone were frequently laid directly on to soil, sometimes with a bed of lime mortar or sand. Consequently, they can be cold to the touch and are difficult to thermally insulate.
can I put insulation under floor tiles?
6mm Under Tile Thermal Insulation Boards. Underfloor Heating World, Under tile and stone hard thermal insulation boards are designed for use directly under tiles and stone floors. When used under underfloor heating the board greatly increases the response rate and overall efficiency of all under floor heating systems.
Can you walk on Celotex?
you will be able to walk on the single layer over the celotex I just meant the celotex wouldn't take your weight whilst the installation was going on.
Related Question Answers
Can you double up Celotex?
The R-value of celotex seems to double between 50mm and 100mm, so yes it would seem to be equivalent. I would have assumed so although, if there is a gap between the faces of the two sheets, air movement may reduce the effectiveness.Is Celotex better than rockwool?
Quilt is not "poorer" than Celotex, it is just less efficient heat insulator at the same thickness. Rockwool is fire resistant too, whereas Celotex it's not. Rockwool has better sound resistance at a given thickness too.Does Celotex need Vapour barrier?
I use Celotex or Kingspan insulation boards which are foil faced, and then I cover them with separate plasterboard. The cheapest insulated plasterboard which uses expanded polystyrene does NOT have a vapour barrier, so don't use it!Can Celotex get wet?
Moisture resistance – Celotex, due to having a closed cell structure, is a hydrophobic product meaning it doesn't absorb water.Does Celotex soundproof?
Active Member. Celotex is really thermal insulation and not generally used for sound resistance. You are better looking at mineral wool as it has greater density and sound absorption qualities.What is the difference between Kingspan and Celotex?
Kingspan and Celotex are essentially the same thing. If you can't get 45mm, then 50mm will be better. You need to provide 135mm. How you fit that between or beneath won't matter, so shop around and get the maximum thickness between (Leave 50mm above airgap) and then you have less reduction inside the hall.How thick should Celotex be?
Celotex Products It comes in a variety of thicknesses from 50-100mm and achieves an A+ rating when compared to the BRE Green Guide. The Celotex TB4000 Insulation Board is another high performance PIR that can be as thin as 12mm.What is the best way to insulate under a wooden floor?
Answer: Ideally a fibrous insulation such as mineral wool or sheep's wool performs best between timber because it will take up thermal movement and cut down air movement around the insulation. 'Thermal bypass' affects performance, so cutting out draughts is preferable.Is it worth insulating under floorboards?
So the simple answer is Yes - it is worth insulating under the floor boards. The problem is that, unless you have space to get under the floor boards, it means taking the floor boards up. The illustration above is a typically method of insulating.Should I insulate my suspended floor?
Generally speaking, you only need to insulate the ground floor. If you're on an upper floor, you don't usually need to insulate your floor space. However, you should consider insulating any floors that are above unheated spaces such as garages, as you could be losing a lot of heat through those.Does underfloor insulation cause damp?
Underfloor insulation will be of little use more likely to cause damp problem, heat rises so unless you have a solid floor no point.Is it worth insulating suspended timber floor?
In a very draughty home, heat loss through draughts can actually exceed the heat loss from the fabric of the building. Insulating a suspended timber floor can eliminate floor draughts and reduce heat loss through the fabric of the floor at the same time.How thick should foam board insulation be?
Foam board insulation is easy to use and is a great DIY way to add some insulation. It comes in standard-size 4×8 sheets, and smaller sizes, in many different thicknesses from 1/4 inch to 2 inches. Some types of thicker foam board insulation are available, but they may need to be special ordered.What is the thinnest floor insulation?
OPTIM-R is Kingspan's thinnest insulation. It comprises of a rigid vacuum insulation panel with a micro porous core which is evacuated, encased and sealed in a thin, gas-tight envelope which gives an outstanding thermal conductivity of 0.007 W/m.K.How much does it cost to insulate under a concrete floor?
A 50mm thick layer of proprietary floor slab insulation is usually enough to reach and maintain the target U value but this should be checked with an architect first. Insulation sheets should be laid tightly together with the joints staggered to avoid movement.Should I insulate under my concrete slab?
Creating an insulation layer and a vapor barrier between the concrete slab and the ground beneath it is the best practice in insulating basement floors. The insulation barrier will help keep warm air in, and the vapor barrier will keep unwanted moisture out.Can you use wall insulation under floor?
What is underfloor insulation? Underfloor insulation is applied to suspended timber floors in residential homes. Many homes with ceiling and wall insulation do not have their suspended timber floors insulated and these can contribute to significant heat loss in winter.How do you insulate an old house floor?
By laying garden netting over the joists so it forms troughs, quilt insulation can be laid to fill the spaces between the joists. Another option is to use a breathable membrane and then to fill the troughs with cellulose (recycled newspaper) insulation. 
