TRC is primarily funded by ad revenue. If you like the content you find here, please do not block our ads. Thank you.
Results 1 to 8 of 8

Thread: Under-carpet floor insulation?

  1. #1
    Really Bored burty's Avatar
    Join Date
    Jan 2009
    Location
    Medway Taahns Innit
    Posts
    2,906
    Like
    7
    Liked 49 in 40 posts
    Blog Entries
    1

    Default Under-carpet floor insulation?

    We have a part of our house which was extended some years ago. The floor is noticeably colder than the rest of the house. Under the carpet it's just a concrete slab. I'm reworking the room and will lay new carpet. Is there anything I can put under the carpet to help add a layer of insulation, and that won't cause any other issues or raise it more than a few millimetres?


  2. TRC is primarily funded by ad revenue. If you like the content you find here, please do not block our ads. Thank you.
  3. #2
    Should Get Out More demographic's Avatar
    Join Date
    Dec 2007
    Location
    The largest and happiest city in England...
    Posts
    20,778
    Like
    638
    Liked 494 in 325 posts

    Default Re: Under-carpet floor insulation?

    Quote Originally Posted by burty View Post
    We have a part of our house which was extended some years ago. The floor is noticeably colder than the rest of the house. Under the carpet it's just a concrete slab. I'm reworking the room and will lay new carpet. Is there anything I can put under the carpet to help add a layer of insulation, and that won't cause any other issues or raise it more than a few millimetres?
    There's good insulated underlays about but I wouldn't know what brands to use, best ask a carpet fitter.

  4. #3
    Really Bored burty's Avatar
    Join Date
    Jan 2009
    Location
    Medway Taahns Innit
    Posts
    2,906
    Like
    7
    Liked 49 in 40 posts
    Blog Entries
    1

    Default Re: Under-carpet floor insulation?

    Thanks.

  5. #4
    Should Get Out More mrlongbeard's Avatar
    Join Date
    Jan 2008
    Location
    Middle of nowhere
    Posts
    14,290
    Like
    369
    Liked 831 in 533 posts
    Blog Entries
    13

    Default Re: Under-carpet floor insulation?

    You'd have to check with a carpet fitter to see if these can go under them or if they're hard flooring only, but these are thin;

    Warmup | 200 W/m˛ Heating Mats | Warmup® 200W/m˛ Heating Mat (2WPFM)

    Obvioulsy you'd need to look at running costs.

  6. #5
    Should Get Out More demographic's Avatar
    Join Date
    Dec 2007
    Location
    The largest and happiest city in England...
    Posts
    20,778
    Like
    638
    Liked 494 in 325 posts

    Default Re: Under-carpet floor insulation?

    Quote Originally Posted by dodgy View Post
    You can get insulated board as well. I have the same problem in one room where I'm about to rip out the carpet and replace with wood flooring, so was hoping to pick up a few tips as to which brand/source meself......
    I've fitted insulated chipboard recently, is that what you are meaning?

    The stuff I have seen had 75mm of insulation glued on the underside of 600mmx2400mm tongued and grooved chipboard.
    It adds quite a lot of height to the floor though which could be a problem.

    Can't remember what make it was though, might have been Caberfloor or Weyroc?


    Saves time cutting all the insulation then doing the same with the chipboard but as I didn't buy the stuff I have no idea how expensive it was.
    Was fairly gutted when I didn't have enough space to keep hold of the three spare boards that would have made a nice allotment shed floor and had to chuck em in the skip.

  7. #6
    One in a million Tart Silly Car's Avatar
    Join Date
    Dec 2007
    Location
    Deep, dark, 'n' dangerous
    Posts
    11,818
    Like
    116
    Liked 299 in 209 posts
    Blog Entries
    10

    Default Re: Under-carpet floor insulation?

    I have used the 7mm insulation boards under laminate flooring before, seem to work very well.

    Duralay is a make of carpet underlay that springs to mind, however I only have carpet on the stairs so not an expert by any means

  8. #7
    Really Bored burty's Avatar
    Join Date
    Jan 2009
    Location
    Medway Taahns Innit
    Posts
    2,906
    Like
    7
    Liked 49 in 40 posts
    Blog Entries
    1

    Default Re: Under-carpet floor insulation?

    Thanks for the replies guys. I apologise for not acknowledging that sooner.

    We have underfloor heating in the kitchen and it's fantastic, but I think unnecessary for this room really. I think a layer of insulation would be sufficient. The problem that I have is the height of the bottom of the door.. Which I guess could be resolved actually a slight lift in floor level would work as the floor is slightly lower than that of the adjacent room, but I can go probably only 10mm without it being much higher.

  9. #8
    Really Bored OB's Avatar
    Join Date
    Feb 2008
    Posts
    2,870
    Like
    0
    Liked 0 in 0 posts

    Default Re: Under-carpet floor insulation?

    I fitted Envirofelt 50 to my front-room floor, which is wood with a DAMN cold draught coming up through it - seriously, it was too cold to walk on.
    It's very thick and insulating, and I thoroughly recommend it. It's made a huge difference to the room, and I only have the cheapest, nastiest office carpet laid on it at the moment. (as a temporary cover)

    Felt and Wool Carpet Underlay from Carpets Direct (GB) Ltd for all your carpet underlay and accessory needs

Go Back to Forum My Forum