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  • FIRST POST
    • penrhyn
    • By penrhyn 30th Jan 07, 6:06 PM
    • 15,007Posts
    • 8,056Thanks
    penrhyn
    Interior insulation for solid walls
    • #1
    • 30th Jan 07, 6:06 PM
    Interior insulation for solid walls 30th Jan 07 at 6:06 PM
    I'm about to do some redecoration, the house has solid walls.
    I want to insulate them before proceeding and have seen a product called Sematap which states it can be used by the DIYer.
    The website is here http://www.mgcltd.co.uk/mgc043.html
    Has anyone tried it, is it any good?
    That gum you like is coming back in style.
Page 1
  • Peter-Pan
    • #2
    • 30th Jan 07, 6:28 PM
    • #2
    • 30th Jan 07, 6:28 PM
    I have never used that stuff,years ago there was a similar product called "kotina" which was similar, reading the "bumf" on the site. it gives good insulation,if you have any condensation or dampness you will have to get it sorted first though.
    A wise man changes his mind, a fool never will.
    El sabio muda el consejo, el necio no.
    • penrhyn
    • By penrhyn 30th Jan 07, 8:32 PM
    • 15,007 Posts
    • 8,056 Thanks
    penrhyn
    • #3
    • 30th Jan 07, 8:32 PM
    • #3
    • 30th Jan 07, 8:32 PM
    Thanks Peter, anyone else used the stuff?
    That gum you like is coming back in style.
    • Steve_xx
    • By Steve_xx 30th Jan 07, 9:20 PM
    • 6,367 Posts
    • 2,643 Thanks
    Steve_xx
    • #4
    • 30th Jan 07, 9:20 PM
    • #4
    • 30th Jan 07, 9:20 PM
    The product looks superb for raising the wall temperature and thereby reducing or even eliminating condensation.

    Perhaps you would be kind enough to post your views on the product once you have used it? I for one would be very interested to read your views on it.
  • uncle_buck
    • #5
    • 30th Jan 07, 10:21 PM
    • #5
    • 30th Jan 07, 10:21 PM
    Could you not use foam backed / insulated plasterboard on your outside walls? …it may work out cheaper than the SEMPATAP method.

    My mate used insulated plasterboard on his solid walls when he was redecorating & he says the heat difference is amazing! …. the boards he used were about 1” thick in total.
    He was replacing the skirting boards so they had been removed ....you would have to remove yours & either renew them or if you could get them off in one piece reuse them.

    http://www.lafargeplasterboard.co.uk/products/prods/therm_res.htm
  • cargo
    • #6
    • 30th Jan 07, 11:15 PM
    • #6
    • 30th Jan 07, 11:15 PM
    Have used the above boards to stop mould growth on cold walls.
    Worked for me.
    • Steve_xx
    • By Steve_xx 30th Jan 07, 11:19 PM
    • 6,367 Posts
    • 2,643 Thanks
    Steve_xx
    • #7
    • 30th Jan 07, 11:19 PM
    • #7
    • 30th Jan 07, 11:19 PM
    ok the boards seem like a good idea, the only drawback that I can see is that uncle_buck reckons they are 1" thick. That's thick!
    Last edited by Steve_xx; 31-01-2007 at 12:08 AM.
    • Fred Bear
    • By Fred Bear 30th Jan 07, 11:40 PM
    • 393 Posts
    • 192 Thanks
    Fred Bear
    • #8
    • 30th Jan 07, 11:40 PM
    • #8
    • 30th Jan 07, 11:40 PM
    Based on my own house, (with solid walls and old gas boiler) and using the mgc website's figures, Sematap should save about 55p per annum per square metre.
    • savemoney
    • By savemoney 15th Nov 08, 11:49 AM
    • 12,737 Posts
    • 11,351 Thanks
    savemoney
    • #9
    • 15th Nov 08, 11:49 AM
    • #9
    • 15th Nov 08, 11:49 AM
    I just got a free sample today from Energy saving trust, its quite soft but one side which is exposed on the wall is more solid and have fibre glass in it, that side you wallpaper on
    • 27col
    • By 27col 15th Nov 08, 4:26 PM
    • 6,454 Posts
    • 4,212 Thanks
    27col
    You cannot expect to get any effective insulation without some thickness of insulation. Losing a couple of inches off the width of a room seems a small price to pay to provide extra insulation. If you do not have a cavity wall, then it is your only option.
    I can afford anything that I want.
    Just so long as I don't want much.
    • want2bmortgage3
    • By want2bmortgage3 15th Nov 08, 6:45 PM
    • 1,942 Posts
    • 416 Thanks
    want2bmortgage3
    i would consider this stuff but unfortunately i have pipes going along the wall and a radiator. plus there isnt an inch of space available where the main door frame joins on the adjacent wall.
    • savemoney
    • By savemoney 15th Nov 08, 6:57 PM
    • 12,737 Posts
    • 11,351 Thanks
    savemoney
    You only loose 10mm with this. But its about £130 + vat plus adhesive £20+ and some other extras

    http://www.eviee.co.uk/Mould-Growth-Consultants-Sempatap-Thermal.htm#nogo
    • savemoney
    • By savemoney 15th Nov 08, 6:59 PM
    • 12,737 Posts
    • 11,351 Thanks
    savemoney
    It isnt the only option you can insulate on outside but it will probably cost more


    You cannot expect to get any effective insulation without some thickness of insulation. Losing a couple of inches off the width of a room seems a small price to pay to provide extra insulation. If you do not have a cavity wall, then it is your only option.
    Originally posted by 27col
    • 27col
    • By 27col 15th Nov 08, 9:37 PM
    • 6,454 Posts
    • 4,212 Thanks
    27col
    Actually savemoney, you have reminded me. Down in Gosport they completely covered several tower blocks with externally applied slabs of polystyrene which were covered with some sort of mesh. This was rendered or sprayed against the weather. The final result looks very nice. The applied slabs were at least 100mm thick, if not more. Might even be a DIY solution , especially if the the house is terraced and the area to be covered is not too great.
    I can afford anything that I want.
    Just so long as I don't want much.
    • Antispam
    • By Antispam 24th Nov 08, 5:29 PM
    • 3,922 Posts
    • 3,451 Thanks
    Antispam
    Well I rang my local council who have a phone number for energy saving which now goes to energy saving trust, no help at all for people who have solid walls
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