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Author Topic: How to insulate walls which lack cavities?  (Read 14410 times)
dhaslam
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« Reply #60 on: May 11, 2009, 05:21:31 PM »

I can't remember  the latin  version but  law is not concerned with trivialities.   Normally external insulation is going to be limited by other factors like roof overhang and windowsills so it isn't going to make a house that much larger.     
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MR GUS
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« Reply #61 on: May 11, 2009, 05:53:51 PM »

Thanks DH, thats sensible, I guess you still have to pay those bastards @ the council shedloads on top in order to tick a box or two?
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leepike
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« Reply #62 on: May 11, 2009, 06:16:27 PM »

just telephoned my mate who is a council building inspector and said there was no problem with the work we are offering also deff. no planning permission needed.
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Brandon
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« Reply #63 on: May 11, 2009, 07:00:30 PM »

where is that in the country?
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changing the world, one roof at a time...

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leepike
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« Reply #64 on: May 11, 2009, 07:53:28 PM »

wales
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Brandon
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« Reply #65 on: May 11, 2009, 07:55:59 PM »

Lle yn Cymru?

Dw i'n byw a gweitio yn ymyl Y trallwng
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changing the world, one roof at a time...

"We can't be B&Q astroturfers. That's one conspiracy theory too far. You should cut down on the pot." - Wookey
leepike
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« Reply #66 on: May 11, 2009, 10:18:39 PM »

brandon

sorry and embaressed but i do not speak welsh, you will have to translate
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Eleanor
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« Reply #67 on: May 12, 2009, 12:51:49 AM »

I think he wants to know if you are from anywhere near Welshpool. No idea why!  Huh
« Last Edit: May 12, 2009, 09:37:32 AM by Eleanor » Logged

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djh
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« Reply #68 on: May 12, 2009, 09:51:30 AM »

In England, isn't external insulation normally covered by the General Permitted Development rules? I haven't heard of any more specific rules or even specific mention like renewables. So I would expect that you can normally do it but it does change the outside appearance and size so you will need permission if your permitted development rights have been withdrawn, or you've already used them up, or if you live in a conservation area or listed house or whatever.

That's just my guess. No idea of the position in Wales, Scotland, either part of Ireland or anywhere else!
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Cheers, Dave
leepike
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« Reply #69 on: May 12, 2009, 01:29:24 PM »

AS FROM OCTOBER THE BUILDING REGS LAW CHANGED AND YOUR ARE NOW ALLOWED TO BUILD MOST EXTENSIONS WITHOUT PLANNING PERMISSION. I DOUBT VERY MUCH WETHER THE COUNCIL WOULD BE BOTHERED ABOUT EXTERNAL WALL INSULATION  BEING APPLIED (BUT I ALWAYS CHECH FIRST IF I AM WORKING OUT OF WALES).I HAVE HAD 28 YEARS OF EXPERIENCE IN EXTERNAL WALL INSULATION APPLICATION AND NEVER HAD ANY PROBLEMS BEFORE. (AS LONG AS HOUSES ARE NOT IN CONSERVATION AREAS AS YOU STATED).
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leepike
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« Reply #70 on: May 12, 2009, 01:43:43 PM »

BRANDON

I AM LIVING IN THE RHONDDA VALLEYS, AS TRANSLATED YOU WERE ASKING WETHER I LIVED NEAR WELSHPOOL (IS THIS QUERY ABOUT A POSSIBLE QUOTE FOR WORK).
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rhys
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« Reply #71 on: May 12, 2009, 05:57:44 PM »

0.37 is the limit on 50mm boards

So using 50mm boards doesn't meet building regs. Presumably a thicker board is needed.

I can understand DIYers shrugging their shoulders and not worrying too much but a surely a professional company wanting a good long term reputation needs to deal with the building regs side of things?

does anyone understand that if we insulate at 25mm boards your house will be compltetely waterproof.
Again it might have waterproofed but has it met the min requirements of building regs?
Just to clarify this:
Building Regs require that where 25% of the surface area of a thermal element is being renovated, then the thermal performance of the whole element should be improved to achieve the standard for replacement thermal element listed in the regs, in the case of walls this is .35W/m2K ( u value) or as a minimum the standard that is practical and cost effective within a simple payback of 15 years. Which  is usually, for walls, also taken to be .35W/m2K
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Brandon
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« Reply #72 on: May 12, 2009, 09:47:48 PM »

lee, easy on the CAPSLOCK you are hurting my ears!  Wink

I was just wondering where you are based, I am looking to add 150mm of EPS to my house, the main issue being that I live in an ex council house, and am end terrace of 4, I have no issue with my house being 6-7" bigger than next door, but not sure the council will see it that way, especially as I am hoping to render, and the entire street is red brick...

I'm up for the fight though.
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changing the world, one roof at a time...

"We can't be B&Q astroturfers. That's one conspiracy theory too far. You should cut down on the pot." - Wookey
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