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Interior insulation for solid walls
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# 1
penrhyn
Old 30-01-2007, 6:06 PM
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Question Interior insulation for solid walls

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?
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# 2
Peter-Pan
Old 30-01-2007, 6:28 PM
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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.
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# 3
penrhyn
Old 30-01-2007, 8:32 PM
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Thanks Peter, anyone else used the stuff?
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# 4
Steve_xx
Old 30-01-2007, 9:20 PM
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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.
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# 5
uncle_buck
Old 30-01-2007, 10:21 PM
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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.../therm_res.htm
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# 6
cargo
Old 30-01-2007, 11:15 PM
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Have used the above boards to stop mould growth on cold walls.
Worked for me.
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# 7
Steve_xx
Old 30-01-2007, 11:19 PM
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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.
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# 8
Fred Bear
Old 30-01-2007, 11:40 PM
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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.
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# 9
savemoney
Old 15-11-2008, 11:49 AM
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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
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# 10
27col
Old 15-11-2008, 4:26 PM
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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.
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# 11
want2bmortgage3
Old 15-11-2008, 6:45 PM
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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.
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# 12
savemoney
Old 15-11-2008, 6:57 PM
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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-...ermal.htm#nogo
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# 13
savemoney
Old 15-11-2008, 6:59 PM
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It isnt the only option you can insulate on outside but it will probably cost more


Quote:
Originally Posted by 27col View Post
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.
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# 14
27col
Old 15-11-2008, 9:37 PM
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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.
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# 15
Antispam
Old 24-11-2008, 5:29 PM
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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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