Wallrock KV600 Thermal Liner

Wallrock KV600 Thermal Liner

Wallrock KV600 Thermal Liner has been added to our product range. To put simply, it’s a thicker version of the traditional Wallrock Thermal Liner. At 4 mm thick it’s 20% thicker (versus 3.2 mm). We aren’t going to write in detail about the technology behind it (read more here), but here is a quick reminder of the top level benefits based on the Thermal Liner (3.2 mm thick):

 

 

 

  • it reduces room warm up time by up to 65% and can offer up to 36% energy saving
  • provides noise insulation: aw=0.02
  • helps with fighting condensation and mould

 

KV600 Thermal Liner is 4 mm thick (25% thicker than standard Wallrock Thermal Liner), but from our unofficial tests we know that the thermal improvements are in the region of 15 to 20% when compared to its skinnier brother. The image below shows the difference in thickness between the two products. It’s still made using the Fibreliner (which you paint / wallpaper with paste-the-wall type of wallpaper) and the thermal backing, which goes onto the wall.

Wallrock KV600 Thermal Liner and Wallrock Thermal Liner - thickness test

Wallrock KV600 and Wallrock Thermal

When to use it

KV600 Thermal Liner can be used in any situation where there are problems with cold rooms / walls, excessive condensation and black mould (same as the standard thermal liner), but it comes to its own when the issues are more serious and you do need the extra performance from what’s on the wall.

 

Considerations

Please note that the roll is 15 m long and 1 m wide (10 m long and 75 cm wide for the standard thermal liner) so you get twice the coverage.

The width of the roll offers benefits and challenges. Because it’s 1 m wide you’ll have less joints and the job goes much faster on flat surfaces. At the same time, because it’s 1 m wide, it’s more difficult to handle and certainly more difficult to work with when applying it to the ceiling (if you were insulating the ceiling as well as the walls you could use standard Wallrock Thermal Liner on the ceiling to make the job easier – remember, the finish is the same). Get someone else to help if you can.

Next steps

Click here to request a free sample of Wallrock KV600 Thermal Liner and ask any questions.

Read more and place your order by clicking here.

48 comments

  1. Kit Moore

    Hi, we are using kv600, and want to use paste the paper wallpaper over it. We have fibreliner which will go on top of the kv600, before we put the wallpaper on. However, should we be cross lining the fibreliner?

    • OnWall

      Hi,

      You don’t have to cross line it, but you can. However, if you are hanging paste-the-wall wallpaper over KV600 thermal liner you don’t have to use Wallrock Fibreliner first – you can and you’ll get a nicer finish overall, but you don’t have to. You need to use Wallrock Fibreliner on top of the thermal liners when you are hanging traditional wallpaper.

      OnWall

  2. junaid hanif

    Hi. We have a clay lump property (made of clay, straw, sand; it is 170 years old). It needs to breathe so the cement render on the outside has been changed to lime render. It also has lime render on the inside. I have been told by experts that it would be OK to for the walls to breathe just from the outside. Is it okay to put KV600 on lime rendered wall? Our walls are cold and there is humidity causing condensation. We are also thinking of getting de-humidifiers. Advice please? Junaid

    • OnWall

      Hi,

      You can use KV600 on lime rendered walls, but you might have to size the walls first by using diluted thermal liner adhesive. Don’t use PVA though. KV600 is breathable as well. Dehumidifiers are a good way to remove excess moisture from the air. Obviously monitor the levels so that the air doesn’t get too dry.

      OnWall

  3. Nisar Ahmed

    I just needed some advice from you about my kitchen. I have 2 walls that are single brick and due to this I get a lot condensation build up and slowly I get the green mould and then the paint starts to peel off and when it comes to summer I sand the area down paint the area using mould resistant paint but when it comes to winter its starts all over again.

    I still have left over of the kv600 thermal liner and adhesive and was just wondering can this be used on these single brick walls or will it get all soggy?

    Best regards
    Nisar

    • OnWall

      Hi Nisar,

      KV600 Thermal Liner can be used in the kitchen – it’s a dimensionally stable product so it doesn’t react to moisture the same way normal lining paper or wallpaper would do – but I think part of the problem is that in the kitchen there’s a naturally higher level of moisture. So, the thermal liner would separate the cold wall from the warmer air inside (one box ticked), but you’d need to ensure that there’s some sort of ventilation in place IF it’s not already in place to remove the excess moisture. Hope this helps.

      OnWall

  4. nisar Ahmed

    Thanks for your advice

    Can I use cladding, kitchen wall tiles, artex or skimmed with plaster on top of the kv600? I am hoping to get this problematic 2 walls sorted during the summer and just want the best solution to fix it once and for all.

    • OnWall

      Hi Nisar,

      No, you can’t use ceramic tiles or plaster on top of the KV600 Thermal Liner. If that’s what you want to do, please use our Climapor Thermal Insulation Tiles.

      OnWall

  5. Myriam Bell

    Hi, I was wondering how this product compares to more classic insulation boards in terms of energy efficiency? We’re buying a house that has no wall insulation whatsoever, and I like the idea of not reducing the room sizes too much (they’re not that big to start with), but I’d like to know if the 2 are actually comparable in terms of energy savings?
    Many thanks

    • OnWall

      Hi Myriam,

      What do you mean by ‘classic insulation boards’, please? There are different types and thickness so it’s impossible to compare it just on this info. Thermal Liner has had tests carried out by the BBA to qualify the manufacturer’s claims.

      OnWall

    • Myriam Bell

      sorry for the late reply, I’m not sure really, I was thinking of something quite average (I’m new to this!) maybe like Celotex 50mm High Performance Insulation Board?
      Many thanks

    • OnWall

      Hi Myriam,

      Firstly, it’s a different product type, but if you just compare the thickness – 50mm vs 4mm – you’ll have part of the answer. However, the thickness of the boards can be a problem in some cases.

      OnWall

  6. Hi, I’d like to try this but I find it hard to believe that a product only 4mm will save 36% on energy. Have you published the testing process and results for this?

  7. Daniel Grey

    I am thinking of using a thermal lining paper such as KV600 (may as well get the best) in my Edwardian semi. The walls are brick with a cavity but I can’t find anyone willing to fill the walls, despite all my neighbours having had theirs done. Apparently there’s not enough wall to window ratio, anyway, back to the lining paper. I intend to use the KV600 beneath an expensive paste-the-back wallpaper and need to know if this is advisable. I’ve read conflicting information that says paste-the-wall paper is the only suitable type for on top of KV600, others say that a secondary liner is needed before the final paper. What do you advise?

    • OnWall

      If it’s a paste-the-wall wallapper, it can go directly over the KV600 Thermal Liner. If it were traditional wallpaper, you’d need Wallrock Fibreliner going over the KV600 first; however, you mentioned ‘expensive wallpaper’. If I were you, I’d be tempted to go over the KV600 with Wallrock Fibreliner (just the standard one; no need to use Premium or Plus) to get a very neat finish first.

      OnWall

  8. Gordon F

    Hi,
    My house is 100 years old, made of stone with lath and plaster walls. I’m interested in this product for the inside of exterior walls in my hallway (ie external walls as opposed to internal walls). Will it affect the breathability of the walls?
    Also, the drop from ceiling to stair in the hall is over 4 metres in places. How difficult is this paper to hang?
    Many thanks,

    • OnWall

      Hi Gordon,

      Wallrock Thermal Liners are breathable, however, as any liner or anything that you hang on the wall will affect breathability. I don’t think it’ll affect the wall in a negative way as this was one of the criteria behind the product specifications – make it breathable. You could potentially consider the standard Wallrock Thermal Liner, which is 3.2mm thick.

      4 m long drop will make the job certainly more difficult and I would suggest that you certainly need 2 people to hang it and you’ll need to apply the adhesive paste in two stages (top and bottom as you make you way down). Again, you could consider the standard Wallrock Thermal Liner which is 75 cm wide, which makes it easier to hang. Please note that there will be wastage in both cases unless you can find areas to use the shorter pieces. Hope this helps. If yo need any samples, please let us know.

      OnWall

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