Wallrock Thermal Liner FAQ’s

  1. I like the product, where in the house can I use it to best effect?
    Wallrock Thermal Liner is certainly most effective as an energy saver on outside walls and especially so if the walls are of solid construction (without cavities). However other key benefits of the product include acting as a sound insulation and covering over textured surfaces to produce a flat surface.
  2. What do you mean by ‘outside wall’?
    Any wall inside the building which is exposed to the elements on the other side.
  3. How much energy will Thermal Liner save me?
    This very much depends on the type of walls you have and just how cold the external temperature is. Please click on the link to the Erfurt Energy Saving Calculator to get a good indication.
  4. I have some really bad textured walls in my house and Thermal Liner will be a good way to get back to flat walls as well as making the room more comfortable plus save energy in the longer term. Do I need to take special precautions when applying Thermal Liner over such poor surfaces?
    Not really, just make sure the walls are clean, dry and solid. If the texture is very deep as with some decorative plaster effects it is advisable to sand down the high points and use extra adhesive to help level the surface. Stand back and take a good look after hanging the first drop to make sure the result is satisfactory.
  5. What area does one roll of Thermal Liner cover?
    The roll are extra wide so each roll will cover 7.5 m2 or 121 ft2. Please use this link to calculate the square meterage you may require, you will need to select Klimatec Thermovlies on the scroll menu.
  6. I remember those old polystyrene insulation tiles that were a real fire hazard, so I have worries in this regard about Thermal Liner?
    Thermal liner is classified as "E" according to DIN EN 13501-1 in relation to its reaction to fire behavior, which corresponds to "B2“ (normally inflammable) according to the standard DIN 4102-1
  7. It is OK saying I will save money but will I physically notice any difference?
    Yes you will do, especially when the heating is first turned on as room warm up time is reduced dramatically and the air currents that make you feel cold whilst a room warms up are also reduced. This is of course in addition to all the other benefits such as a reduction in noise entering through the treated wall.
  8. Tell me again, how do I hang Thermal Liner?
    It is very straightforward. First of all we recommend you use the Thermal Liner Adhesive which is nice and thick whilst you can still apply it with a roller straight from the tub. Always apply the paste to the wall and do an area just a little greater in width than for the first length. Position the Thermal Liner directly onto the pasted area , smooth down and trim to suit. We recommend that you never apply the adhesive to the Thermal Liner as this makes it heavy and difficult to handle. For trimming, either carefully mark the Thermal Liner, peel back a little and trim with scissors or use a very sharp knife to trim directly in position.
  9. Why do you recommend lining over the top of the Thermal Liner?
    Two main reasons, 1) It makes it much easier to achieve a nice neat finish with minimal filling and sanding 2) It helps protect your investment from damage creating a good base for paint or decorative wallpaper at the same time.
  10. I like the product however I’m worried about how it will look around light switches and skirting boards for example.
    Thermal Liner is less than 4mm thick and a neat finish is therefore possible in most applications, skirting, coving or light switches for example do not appear to be ‘sunk’ below the wall surface. Don’t forget Thermal Liner works best on outside walls, significant benefits can be achieved without the need to apply it to every internal surface.